chore(release): publish packages

- thermion_dart@0.1.0+3
 - thermion_flutter_web@0.0.1+3
 - thermion_flutter@0.1.1+4
 - thermion_flutter_platform_interface@0.1.0+3
 - thermion_flutter_ffi@0.1.0+3

.gitignore

@@ -7,3 +7,6 @@
 .DS_Store
 **/*/build
 **/*/pubspec.lock
+pubspec_overrides.yaml
+/pubspec.lock
+*.iml

CHANGELOG.md

@@ -0,0 +1,139 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+## 2024-06-21
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - There are no breaking changes in this release.
+
+Packages with other changes:
+
+ - [`thermion_dart` - `v0.1.0+3`](#thermion_dart---v0103)
+ - [`thermion_flutter_web` - `v0.0.1+3`](#thermion_flutter_web---v0013)
+ - [`thermion_flutter` - `v0.1.1+4`](#thermion_flutter---v0114)
+ - [`thermion_flutter_platform_interface` - `v0.1.0+3`](#thermion_flutter_platform_interface---v0103)
+ - [`thermion_flutter_ffi` - `v0.1.0+3`](#thermion_flutter_ffi---v0103)
+
+Packages with dependency updates only:
+
+> Packages listed below depend on other packages in this workspace that have had changes. Their versions have been incremented to bump the minimum dependency versions of the packages they depend upon in this project.
+
+ - `thermion_flutter_web` - `v0.0.1+3`
+ - `thermion_flutter` - `v0.1.1+4`
+ - `thermion_flutter_platform_interface` - `v0.1.0+3`
+ - `thermion_flutter_ffi` - `v0.1.0+3`
+
+---
+
+#### `thermion_dart` - `v0.1.0+3`
+
+ - **FIX**: exit build.dart early on Linux builds so we can use the package on a Linux host.
+
+
+## 2024-06-21
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - There are no breaking changes in this release.
+
+Packages with other changes:
+
+ - [`thermion_dart` - `v0.1.0+2`](#thermion_dart---v0102)
+ - [`thermion_flutter_ffi` - `v0.1.0+2`](#thermion_flutter_ffi---v0102)
+ - [`thermion_flutter_web` - `v0.0.1+2`](#thermion_flutter_web---v0012)
+ - [`thermion_flutter` - `v0.1.1+3`](#thermion_flutter---v0113)
+ - [`thermion_flutter_platform_interface` - `v0.1.0+2`](#thermion_flutter_platform_interface---v0102)
+
+Packages with dependency updates only:
+
+> Packages listed below depend on other packages in this workspace that have had changes. Their versions have been incremented to bump the minimum dependency versions of the packages they depend upon in this project.
+
+ - `thermion_flutter_web` - `v0.0.1+2`
+ - `thermion_flutter` - `v0.1.1+3`
+ - `thermion_flutter_platform_interface` - `v0.1.0+2`
+
+---
+
+#### `thermion_dart` - `v0.1.0+2`
+
+ - **REFACTOR**: rearrange some stubs/imports for easier web WASM deployment.
+
+#### `thermion_flutter_ffi` - `v0.1.0+2`
+
+ - **REFACTOR**: rearrange some stubs/imports for easier web WASM deployment.
+
+
+## 2024-06-21
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - There are no breaking changes in this release.
+
+Packages with other changes:
+
+ - [`thermion_flutter` - `v0.1.1+2`](#thermion_flutter---v0112)
+
+---
+
+#### `thermion_flutter` - `v0.1.1+2`
+
+ - **FIX**: update Flutter example project to use new API.
+ - **FIX**: add logging dependency to thermion_flutter.
+
+
+## 2024-06-21
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - There are no breaking changes in this release.
+
+Packages with other changes:
+
+ - [`thermion_dart` - `v0.1.0+1`](#thermion_dart---v0101)
+ - [`thermion_flutter` - `v0.1.1+1`](#thermion_flutter---v0111)
+ - [`thermion_flutter_web` - `v0.0.1+1`](#thermion_flutter_web---v0011)
+ - [`thermion_flutter_platform_interface` - `v0.1.0+1`](#thermion_flutter_platform_interface---v0101)
+ - [`thermion_flutter_ffi` - `v0.1.0+1`](#thermion_flutter_ffi---v0101)
+
+Packages with dependency updates only:
+
+> Packages listed below depend on other packages in this workspace that have had changes. Their versions have been incremented to bump the minimum dependency versions of the packages they depend upon in this project.
+
+ - `thermion_flutter_platform_interface` - `v0.1.0+1`
+ - `thermion_flutter_ffi` - `v0.1.0+1`
+
+---
+
+#### `thermion_dart` - `v0.1.0+1`
+
+ - **REFACTOR**: export ThermionViewerWasm for web and hide FFI/WASM version.
+ - **FIX**: use preserveDrawingBuffer=true on web.
+
+#### `thermion_flutter` - `v0.1.1+1`
+
+ - **REFACTOR**: export ThermionViewerWasm for web and hide FFI/WASM version.
+ - **FIX**: catch exception if gizmo unavailable in ThermionGestureDestectorDesktop.
+
+#### `thermion_flutter_web` - `v0.0.1+1`
+
+ - **REFACTOR**: export ThermionViewerWasm for web and hide FFI/WASM version.
+

README.md

@@ -1,9 +1,9 @@
 ![Thermion Logo](docs/logo.png)
 
 <p align="center">
-  <a href="https://docs.page/nmfisher/flutter_filament/quickstart">Quickstart (Flutter)</a> •
-  <a href="https://docs.page/nmfisher/flutter_filament">Documentation</a> •
-  <a href="https://github.com/nmfisher/thermion/docs/examples/">Showcase</a> •
+  <a href="https://docs.page/nmfisher/thermion/quickstart">Quickstart (Flutter)</a> •
+  <a href="https://docs.page/nmfisher/thermion">Documentation</a> •
+  <a href="https://docs.page/nmfisher/thermion/examples">Showcase</a> •
   <a href="https://discord.gg/h2VdDK3EAQ">Discord</a>
 </p>
 

examples/flutter/example/lib/example_viewport.dart

@@ -1,36 +1,34 @@
 import 'package:flutter/widgets.dart';
-import 'package:thermion_flutter/filament/widgets/camera/entity_controller_mouse_widget.dart';
-import 'package:thermion_flutter/filament/widgets/camera/gestures/filament_gesture_detector.dart';
-import 'package:thermion_flutter/filament/widgets/filament_widget.dart';
+import 'package:thermion_flutter/thermion/widgets/camera/entity_controller_mouse_widget.dart';
 import 'package:thermion_flutter/thermion_flutter.dart';
 import 'package:thermion_dart/thermion_dart/entities/entity_transform_controller.dart';
 
 
 class ExampleViewport extends StatelessWidget {
-  final ThermionFlutterPlugin? controller;
+  final ThermionViewer? viewer;
   final EntityTransformController? entityTransformController;
   final EdgeInsets padding;
   final FocusNode keyboardFocusNode;
 
   const ExampleViewport(
       {super.key,
-      required this.controller,
+      required this.viewer,
       required this.padding,
       required this.keyboardFocusNode,
       this.entityTransformController});
 
   @override
   Widget build(BuildContext context) {
-        return controller != null
+        return viewer != null
         ? Padding(
             padding: padding,
             child: EntityTransformMouseControllerWidget(
                 transformController: entityTransformController,
-                child: FilamentGestureDetector(
+                child: ThermionGestureDetector(
                     showControlOverlay: true,
-                    controller: controller!.viewer,
+                    controller: viewer!,
                     child: ThermionWidget(
-                      plugin: controller!,
+                      viewer: viewer!,
                     ))))
         : Container();
   }

examples/flutter/example/lib/main.dart

@@ -1,14 +1,10 @@
 import 'dart:async';
 import 'package:flutter/material.dart';
-import 'package:thermion_flutter/filament/widgets/debug/entity_list_widget.dart';
-import 'package:thermion_flutter_example/camera_matrix_overlay.dart';
+import 'package:thermion_flutter/thermion/widgets/debug/entity_list_widget.dart';
 import 'package:thermion_flutter_example/menus/controller_menu.dart';
 import 'package:thermion_flutter_example/example_viewport.dart';
-import 'package:thermion_dart/thermion_dart/entities/entity_transform_controller.dart';
 import 'package:thermion_flutter_example/menus/scene_menu.dart';
 import 'package:thermion_flutter/thermion_flutter.dart';
-import 'package:thermion_flutter_example/picker_result_widget.dart';
-
 
 const loadDefaultScene = bool.hasEnvironment('--load-default-scene');
 
@@ -38,8 +34,7 @@ class _MyAppState extends State<MyApp> with SingleTickerProviderStateMixin {
                 bodyMedium: TextStyle(fontSize: 12))),
         // showPerformanceOverlay: true,
         home: const Scaffold(
-          backgroundColor: Color(0x00000000),
-          body: ExampleWidget()));
+            backgroundColor: Color(0x00000000), body: ExampleWidget()));
   }
 }
 
@@ -55,7 +50,7 @@ class ExampleWidget extends StatefulWidget {
 enum MenuType { controller, assets, camera, misc }
 
 class ExampleWidgetState extends State<ExampleWidget> {
-  final _plugin = ThermionFlutterPlugin();
+  ThermionViewer? _viewer;
 
   EdgeInsets _viewportMargin = EdgeInsets.zero;
 
@@ -99,105 +94,103 @@ class ExampleWidgetState extends State<ExampleWidget> {
 
   @override
   Widget build(BuildContext context) {
-    return FutureBuilder(
-        future: _plugin.initialized,
-        builder: (_, AsyncSnapshot<bool> initialized) {
-          var isInitialized = initialized.data == true;
-
-          return Stack(
-            fit: StackFit.expand,
-            children: [
-            if (isInitialized)
-              Positioned.fill(
-                child: ExampleViewport(
-                    controller: isInitialized ? _plugin : null,
-                    entityTransformController: _transformController,
-                    padding: _viewportMargin,
-                    keyboardFocusNode: _sharedFocusNode),
+    return Stack(fit: StackFit.expand, children: [
+      if (_viewer != null)
+        Positioned.fill(
+          child: ExampleViewport(
+              viewer: _viewer!,
+              entityTransformController: _transformController,
+              padding: _viewportMargin,
+              keyboardFocusNode: _sharedFocusNode),
+        ),
+      Positioned(
+          bottom: 30,
+          left: 0,
+          right: 10,
+          height: 30,
+          child: Container(
+              height: 30,
+              decoration: BoxDecoration(
+                borderRadius: BorderRadius.circular(30),
+                color: Colors.white.withOpacity(0.25),
               ),
-            Positioned(
-                bottom: 30,
-                left: 0,
-                right: 10,
-                height: 30,
-                child: Container(
-                    height: 30,
-                    decoration: BoxDecoration(
-                      borderRadius: BorderRadius.circular(30),
-                      color: Colors.white.withOpacity(0.25),
-                    ),
-                    padding: const EdgeInsets.symmetric(horizontal: 10),
-                    child: Row(
-                        crossAxisAlignment: CrossAxisAlignment.center,
-                        children: [
-                          ControllerMenu(
-                              sharedFocusNode: _sharedFocusNode,
-                              controller: _plugin,
-                              onToggleViewport: () {
-                                setState(() {
-                                  _viewportMargin =
-                                      (_viewportMargin == EdgeInsets.zero)
-                                          ? const EdgeInsets.all(30)
-                                          : EdgeInsets.zero;
-                                });
-                              },
-                              onControllerDestroyed: () {},
-                              onControllerCreated: () {}),
-                          SceneMenu(
-                            sharedFocusNode: _sharedFocusNode,
-                            controller: _plugin,
-                          ),
-                          GestureDetector(
-                              onTap: () async {
-                                await _plugin.viewer.loadGlb(
-                                    'assets/shapes/shapes.glb',
-                                    numInstances: 1);
-                              },
-                              child: Container(
-                                  color: Colors.transparent,
-                                  child: const Text("shapes.glb"))),
-                          const SizedBox(width: 5),
-                          GestureDetector(
-                              onTap: () async {
-                                await _plugin.viewer.loadGlb('assets/1.glb');
-                              },
-                              child: Container(
-                                  color: Colors.transparent,
-                                  child: const Text("1.glb"))),
-                          const SizedBox(width: 5),
-                          GestureDetector(
-                              onTap: () async {
-                                await _plugin.viewer.loadGlb('assets/2.glb');
-                              },
-                              child: Container(
-                                  color: Colors.transparent,
-                                  child: const Text("2.glb"))),
-                          const SizedBox(width: 5),
-                          GestureDetector(
-                              onTap: () async {
-                                await _plugin.viewer.loadGlb('assets/3.glb');
-                              },
-                              child: Container(
-                                  color: Colors.transparent,
-                                  child: const Text("3.glb"))),
-                          Expanded(child: Container()),
-                        ]))),
-            if (isInitialized) ...[
-              Positioned(top:10, left:10, width:200, height:200, child:Container(
-                child:EntityListWidget(controller: _plugin.viewer))),
-              // Padding(
-              //   padding: const EdgeInsets.only(top: 10, left: 20, right: 20),
-              //   child: ValueListenableBuilder(
-              //       valueListenable: showProjectionMatrices,
-              //       builder: (ctx, value, child) => CameraMatrixOverlay(
-              //           controller: _plugin.viewer, showProjectionMatrices: value)),
-              // ),
-              // Align(
-              //   alignment: Alignment.topRight,
-              //   child: PickerResultWidget(controller: _plugin.viewer),
-              // )
-            ]
-          ]);
-        });
+              padding: const EdgeInsets.symmetric(horizontal: 10),
+              child:
+                  Row(crossAxisAlignment: CrossAxisAlignment.center, children: [
+                ViewerMenu(
+                    sharedFocusNode: _sharedFocusNode,
+                    viewer: _viewer,
+                    onToggleViewport: () {
+                      setState(() {
+                        _viewportMargin = (_viewportMargin == EdgeInsets.zero)
+                            ? const EdgeInsets.all(30)
+                            : EdgeInsets.zero;
+                      });
+                    },
+                    onViewerDestroyed: () {
+                      setState(() {
+                        _viewer = null;
+                      });
+                    },
+                    onViewerCreated: (v) {
+                      setState(() {
+                        _viewer = v;
+                      });
+                    }),
+                SceneMenu(
+                  sharedFocusNode: _sharedFocusNode,
+                  controller: _viewer,
+                ),
+                GestureDetector(
+                    onTap: () async {
+                      await _viewer!
+                          .loadGlb('assets/shapes/shapes.glb', numInstances: 1);
+                    },
+                    child: Container(
+                        color: Colors.transparent,
+                        child: const Text("shapes.glb"))),
+                const SizedBox(width: 5),
+                GestureDetector(
+                    onTap: () async {
+                      await _viewer!.loadGlb('assets/1.glb');
+                    },
+                    child: Container(
+                        color: Colors.transparent, child: const Text("1.glb"))),
+                const SizedBox(width: 5),
+                GestureDetector(
+                    onTap: () async {
+                      await _viewer!.loadGlb('assets/2.glb');
+                    },
+                    child: Container(
+                        color: Colors.transparent, child: const Text("2.glb"))),
+                const SizedBox(width: 5),
+                GestureDetector(
+                    onTap: () async {
+                      await _viewer!.loadGlb('assets/3.glb');
+                    },
+                    child: Container(
+                        color: Colors.transparent, child: const Text("3.glb"))),
+                Expanded(child: Container()),
+              ]))),
+      if (_viewer != null) ...[
+        Positioned(
+            top: 10,
+            left: 10,
+            width: 200,
+            height: 200,
+            child: Container(child: EntityListWidget(controller: _viewer!))),
+        // Padding(
+        //   padding: const EdgeInsets.only(top: 10, left: 20, right: 20),
+        //   child: ValueListenableBuilder(
+        //       valueListenable: showProjectionMatrices,
+        //       builder: (ctx, value, child) => CameraMatrixOverlay(
+        //           controller: _viewer!, showProjectionMatrices: value)),
+        // ),
+        // Align(
+        //   alignment: Alignment.topRight,
+        //   child: PickerResultWidget(controller: _viewer!),
+        // )
+      ]
+    ]);
   }
 }

examples/flutter/example/lib/menus/asset_submenu.dart

@@ -8,8 +8,8 @@ import 'package:vector_math/vector_math_64.dart' as v;
 import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
 
 class AssetSubmenu extends StatefulWidget {
-  final ThermionFlutterPlugin controller;
-  const AssetSubmenu({super.key, required this.controller});
+  final ThermionViewer viewer;
+  const AssetSubmenu({super.key, required this.viewer});
 
   @override
   State<StatefulWidget> createState() => _AssetSubmenuState();
@@ -26,8 +26,8 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
       MenuItemButton(
           closeOnActivate: false,
           onPressed: () async {
-            var entity = await widget.controller.viewer.getChildEntity(
-                widget.controller.viewer.scene.listEntities().last, "Cylinder");
+            var entity = await widget.viewer.getChildEntity(
+                widget.viewer.scene.listEntities().last, "Cylinder");
             await showDialog(
                 context: context,
                 builder: (BuildContext context) {
@@ -39,8 +39,8 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
           child: const Text('Find Cylinder entity by name')),
       MenuItemButton(
         onPressed: () async {
-          widget.controller.viewer.setPosition(
-              widget.controller.viewer.scene.listEntities().last,
+          widget.viewer.setPosition(
+              widget.viewer.scene.listEntities().last,
               1.0,
               1.0,
               -1.0);
@@ -50,8 +50,8 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
       MenuItemButton(
           onPressed: () async {
             final color = Colors.purple;
-            widget.controller.viewer.setMaterialColor(
-                widget.controller.viewer.scene.listEntities().last,
+            widget.viewer.setMaterialColor(
+                widget.viewer.scene.listEntities().last,
                 "Cone",
                 0,
                 color.red / 255.0,
@@ -85,14 +85,14 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
                 -1.0,
               ];
               var indices = [0, 1, 2, 2, 3, 0];
-              var geom = await widget.controller.viewer.createGeometry(
+              var geom = await widget.viewer.createGeometry(
                   verts, indices,
                   materialPath: "asset://assets/solidcolor.filamat");
             },
             child: const Text("Quad")),
         MenuItemButton(
             onPressed: () async {
-              await widget.controller.viewer.createGeometry([
+              await widget.viewer.createGeometry([
                 0,
                 0,
                 0,
@@ -118,14 +118,14 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
         _geometrySubmenu(),
         MenuItemButton(
           onPressed: () async {
-            await widget.controller.viewer.addLight(
+            await widget.viewer.addLight(
                 LightType.DIRECTIONAL, 6500, 100000, 0, 1, 0, 0, -1, 0);
           },
           child: const Text("Add directional light"),
         ),
         MenuItemButton(
           onPressed: () async {
-            await widget.controller.viewer.addLight(
+            await widget.viewer.addLight(
                 LightType.POINT, 6500, 100000, 0, 1, 0, 0, -1, 0,
                 falloffRadius: 1.0);
           },
@@ -133,7 +133,7 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
         ),
         MenuItemButton(
           onPressed: () async {
-            await widget.controller.viewer.addLight(
+            await widget.viewer.addLight(
                 LightType.SPOT, 6500, 1000000, 0, 0, 0, 0, 1, 0,
                 spotLightConeInner: 0.1,
                 spotLightConeOuter: 0.4,
@@ -143,26 +143,26 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
         ),
         MenuItemButton(
           onPressed: () async {
-            await widget.controller.viewer.clearLights();
+            await widget.viewer.clearLights();
           },
           child: const Text("Clear lights"),
         ),
         MenuItemButton(
             onPressed: () {
               final color = const Color(0xAA73C9FA);
-              widget.controller.viewer.setBackgroundColor(color.red / 255.0,
+              widget.viewer.setBackgroundColor(color.red / 255.0,
                   color.green / 255.0, color.blue / 255.0, 1.0);
             },
             child: const Text("Set background color")),
         MenuItemButton(
             onPressed: () {
-              widget.controller.viewer
+              widget.viewer
                   .setBackgroundImage('assets/background.ktx');
             },
             child: const Text("Load background image")),
         MenuItemButton(
             onPressed: () {
-              widget.controller.viewer.setBackgroundImage(
+              widget.viewer.setBackgroundImage(
                   'assets/background.ktx',
                   fillHeight: true);
             },
@@ -170,9 +170,9 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
         MenuItemButton(
             onPressed: () {
               if (ExampleWidgetState.hasSkybox) {
-                widget.controller.viewer.removeSkybox();
+                widget.viewer.removeSkybox();
               } else {
-                widget.controller.viewer
+                widget.viewer
                     .loadSkybox('assets/default_env/default_env_skybox.ktx');
               }
               ExampleWidgetState.hasSkybox = !ExampleWidgetState.hasSkybox;
@@ -182,18 +182,18 @@ class _AssetSubmenuState extends State<AssetSubmenu> {
                 : 'Load skybox')),
         MenuItemButton(
             onPressed: () {
-              widget.controller.viewer
+              widget.viewer
                   .loadIbl('assets/default_env/default_env_ibl.ktx');
             },
             child: const Text('Load IBL')),
         MenuItemButton(
             onPressed: () {
-              widget.controller.viewer.removeIbl();
+              widget.viewer.removeIbl();
             },
             child: const Text('Remove IBL')),
         MenuItemButton(
             onPressed: () async {
-              await widget.controller.viewer.clearEntities();
+              await widget.viewer.clearEntities();
             },
             child: const Text('Clear assets')),
       ],

examples/flutter/example/lib/menus/camera_submenu.dart

@@ -8,8 +8,8 @@ import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
 import 'package:thermion_flutter_example/main.dart';
 
 class CameraSubmenu extends StatefulWidget {
-  final ThermionFlutterPlugin controller;
-  const CameraSubmenu({super.key, required this.controller});
+  final ThermionViewer viewer;
+  const CameraSubmenu({super.key, required this.viewer});
 
   @override
   State<StatefulWidget> createState() => _CameraSubmenuState();
@@ -22,10 +22,10 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
   @override
   void initState() {
     super.initState();
-    widget.controller.viewer.initialized.then((_) {
-      widget.controller.viewer.getCameraCullingNear().then((v) {
+    widget.viewer.initialized.then((_) {
+      widget.viewer.getCameraCullingNear().then((v) {
         _near = v;
-        widget.controller.viewer.getCameraCullingFar().then((v) {
+        widget.viewer.getCameraCullingFar().then((v) {
           _far = v;
           setState(() {});
         });
@@ -56,7 +56,7 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
           menuChildren: [1.0, 7.0, 14.0, 28.0, 56.0]
               .map((v) => MenuItemButton(
                     onPressed: () {
-                      widget.controller.viewer.setCameraFocalLength(v);
+                      widget.viewer.setCameraFocalLength(v);
                     },
                     child: Text(
                       v.toStringAsFixed(2),
@@ -71,7 +71,7 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
                       _near = v;
                       print("Setting camera culling to $_near $_far!");
 
-                      widget.controller.viewer.setCameraCulling(_near!, _far!);
+                      widget.viewer.setCameraCulling(_near!, _far!);
                     },
                     child: Text(
                       v.toStringAsFixed(2),
@@ -85,7 +85,7 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
                     onPressed: () {
                       _far = v;
                       print("Setting camera culling to $_near! $_far");
-                      widget.controller.viewer.setCameraCulling(_near!, _far!);
+                      widget.viewer.setCameraCulling(_near!, _far!);
                     },
                     child: Text(
                       v.toStringAsFixed(2),
@@ -95,21 +95,21 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
           child: const Text("Set far")),
       MenuItemButton(
         onPressed: () async {
-          widget.controller.viewer.setCameraPosition(1.0, 1.0, -1.0);
+          widget.viewer.setCameraPosition(1.0, 1.0, -1.0);
         },
         child: const Text('Set position to 1, 1, -1 (leave rotation as-is)'),
       ),
       MenuItemButton(
         onPressed: () async {
-          widget.controller.viewer.setCameraPosition(0.0, 0.0, 0.0);
-          widget.controller.viewer.setCameraRotation(
+          widget.viewer.setCameraPosition(0.0, 0.0, 0.0);
+          widget.viewer.setCameraRotation(
               v.Quaternion.axisAngle(v.Vector3(0, 0.0, 1.0), 0.0));
         },
         child: const Text('Move to 0,0,0, facing towards 0,0,-1'),
       ),
       MenuItemButton(
         onPressed: () {
-          widget.controller.viewer.setCameraRotation(
+          widget.viewer.setCameraRotation(
               v.Quaternion.axisAngle(v.Vector3(0, 1, 0), pi / 4));
         },
         child: const Text("Rotate camera 45 degrees around y axis"),
@@ -118,7 +118,7 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
         onPressed: () {
           ExampleWidgetState.frustumCulling =
               !ExampleWidgetState.frustumCulling;
-          widget.controller.viewer
+          widget.viewer
               .setViewFrustumCulling(ExampleWidgetState.frustumCulling);
         },
         child: Text(
@@ -128,7 +128,7 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
           closeOnActivate: false,
           onPressed: () async {
             var projMatrix =
-                await widget.controller.viewer.getCameraProjectionMatrix();
+                await widget.viewer.getCameraProjectionMatrix();
             await showDialog(
                 context: context,
                 builder: (ctx) {
@@ -147,7 +147,7 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
           menuChildren: ManipulatorMode.values.map((mm) {
             return MenuItemButton(
               onPressed: () {
-                widget.controller.viewer.setCameraManipulatorOptions(
+                widget.viewer.setCameraManipulatorOptions(
                     mode: mm,
                     orbitSpeedX: ExampleWidgetState.orbitSpeedX,
                     orbitSpeedY: ExampleWidgetState.orbitSpeedY,
@@ -169,7 +169,7 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
             return MenuItemButton(
               onPressed: () {
                 ExampleWidgetState.zoomSpeed = speed;
-                widget.controller.viewer.setCameraManipulatorOptions(
+                widget.viewer.setCameraManipulatorOptions(
                     orbitSpeedX: ExampleWidgetState.orbitSpeedX,
                     orbitSpeedY: ExampleWidgetState.orbitSpeedY,
                     zoomSpeed: ExampleWidgetState.zoomSpeed);
@@ -191,7 +191,7 @@ class _CameraSubmenuState extends State<CameraSubmenu> {
               onPressed: () {
                 ExampleWidgetState.orbitSpeedX = speed;
                 ExampleWidgetState.orbitSpeedY = speed;
-                widget.controller.viewer.setCameraManipulatorOptions(
+                widget.viewer.setCameraManipulatorOptions(
                     orbitSpeedX: ExampleWidgetState.orbitSpeedX,
                     orbitSpeedY: ExampleWidgetState.orbitSpeedY,
                     zoomSpeed: ExampleWidgetState.zoomSpeed);

examples/flutter/example/lib/menus/controller_menu.dart

@@ -5,29 +5,31 @@ import 'package:flutter/widgets.dart';
 
 import 'package:thermion_flutter/thermion_flutter.dart';
 
-class ControllerMenu extends StatefulWidget {
-  final ThermionFlutterPlugin controller;
+class ViewerMenu extends StatefulWidget {
+  final ThermionViewer? viewer;
   final void Function() onToggleViewport;
-  final void Function() onControllerCreated;
-  final void Function() onControllerDestroyed;
+  final void Function(ThermionViewer viewer) onViewerCreated;
+  final void Function() onViewerDestroyed;
   final FocusNode sharedFocusNode;
-         
 
-  ControllerMenu(
-      {required this.controller,
-      required this.onControllerCreated,
-      required this.onControllerDestroyed,
+  ViewerMenu(
+      {
+        required this.viewer,
+        required this.onViewerCreated,
+      required this.onViewerDestroyed,
       required this.sharedFocusNode,
       required this.onToggleViewport});
 
   @override
-  State<StatefulWidget> createState() => _ControllerMenuState();
+  State<StatefulWidget> createState() => _ViewerMenuState();
 }
 
-class _ControllerMenuState extends State<ControllerMenu> {
-  void _createController({String? uberArchivePath}) async {
-    widget.controller.initialize(uberArchivePath: uberArchivePath);
-    widget.onControllerCreated();
+class _ViewerMenuState extends State<ViewerMenu> {
+  void _createViewer({String? uberArchivePath}) async {
+    var viewer = await ThermionFlutterPlugin.createViewer(
+        uberArchivePath: uberArchivePath);
+    await viewer.initialized;
+    widget.onViewerCreated(viewer);
   }
 
   @override
@@ -36,7 +38,7 @@ class _ControllerMenuState extends State<ControllerMenu> {
   }
 
   @override
-  void didUpdateWidget(ControllerMenu oldWidget) {
+  void didUpdateWidget(ViewerMenu oldWidget) {
     super.didUpdateWidget(oldWidget);
   }
 
@@ -50,14 +52,14 @@ class _ControllerMenuState extends State<ControllerMenu> {
           child:
               const Text("Create ThermionFlutterPlugin (default ubershader)"),
           onPressed: () {
-            _createController();
+            _createViewer();
           },
         ),
         MenuItemButton(
           child: const Text(
               "Create ThermionFlutterPlugin (custom ubershader - lit opaque only)"),
           onPressed: () {
-            _createController(
+            _createViewer(
                 uberArchivePath: Platform.isWindows
                     ? "assets/lit_opaque_32.uberz"
                     : Platform.isMacOS
@@ -73,8 +75,8 @@ class _ControllerMenuState extends State<ControllerMenu> {
         MenuItemButton(
           child: const Text("Destroy viewer"),
           onPressed: () async {
-            widget.controller.dispose();
-            widget.onControllerDestroyed();
+            widget.viewer!.dispose();
+            widget.onViewerDestroyed();
             setState(() {});
           },
         )
@@ -89,8 +91,7 @@ class _ControllerMenuState extends State<ControllerMenu> {
                 onPressed: widget.onToggleViewport,
               )
             ],
-        builder:
-            (BuildContext context, MenuController controller, Widget? child) {
+        builder: (BuildContext context, MenuController controller, Widget? child) {
           return TextButton(
             onPressed: () {
               if (controller.isOpen) {
@@ -99,7 +100,7 @@ class _ControllerMenuState extends State<ControllerMenu> {
                 controller.open();
               }
             },
-            child: const Text("Controller / Viewer"),
+            child: const Text("Viewer / Viewer"),
           );
         });
   }

examples/flutter/example/lib/menus/rendering_submenu.dart

@@ -4,9 +4,9 @@ import 'package:thermion_flutter_example/main.dart';
 import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
 
 class RenderingSubmenu extends StatefulWidget {
-  final ThermionFlutterPlugin controller;
+  final ThermionViewer viewer;
 
-  const RenderingSubmenu({super.key, required this.controller});
+  const RenderingSubmenu({super.key, required this.viewer});
 
   @override
   State<StatefulWidget> createState() => _RenderingSubmenuState();
@@ -19,14 +19,14 @@ class _RenderingSubmenuState extends State<RenderingSubmenu> {
       menuChildren: [
         MenuItemButton(
           onPressed: () {
-            widget.controller.viewer.render();
+            widget.viewer.render();
           },
           child: const Text("Render single frame"),
         ),
         MenuItemButton(
           onPressed: () {
             ExampleWidgetState.rendering = !ExampleWidgetState.rendering;
-            widget.controller.viewer.setRendering(ExampleWidgetState.rendering);
+            widget.viewer.setRendering(ExampleWidgetState.rendering);
           },
           child: Text(
               "Set continuous rendering to ${!ExampleWidgetState.rendering}"),
@@ -35,14 +35,14 @@ class _RenderingSubmenuState extends State<RenderingSubmenu> {
           onPressed: () {
             ExampleWidgetState.framerate =
                 ExampleWidgetState.framerate == 60 ? 30 : 60;
-            widget.controller.viewer.setFrameRate(ExampleWidgetState.framerate);
+            widget.viewer.setFrameRate(ExampleWidgetState.framerate);
           },
           child: Text(
               "Toggle framerate (currently ${ExampleWidgetState.framerate}) "),
         ),
         MenuItemButton(
           onPressed: () {
-            widget.controller.viewer.setToneMapping(ToneMapper.LINEAR);
+            widget.viewer.setToneMapping(ToneMapper.LINEAR);
           },
           child: const Text("Set tone mapping to linear"),
         ),
@@ -50,7 +50,7 @@ class _RenderingSubmenuState extends State<RenderingSubmenu> {
           onPressed: () {
             ExampleWidgetState.postProcessing =
                 !ExampleWidgetState.postProcessing;
-            widget.controller.viewer
+            widget.viewer
                 .setPostProcessing(ExampleWidgetState.postProcessing);
           },
           child: Text(
@@ -60,7 +60,7 @@ class _RenderingSubmenuState extends State<RenderingSubmenu> {
           onPressed: () {
             ExampleWidgetState.antiAliasingMsaa =
                 !ExampleWidgetState.antiAliasingMsaa;
-            widget.controller.viewer.setAntiAliasing(
+            widget.viewer.setAntiAliasing(
                 ExampleWidgetState.antiAliasingMsaa,
                 ExampleWidgetState.antiAliasingFxaa,
                 ExampleWidgetState.antiAliasingTaa);
@@ -72,7 +72,7 @@ class _RenderingSubmenuState extends State<RenderingSubmenu> {
           onPressed: () {
             ExampleWidgetState.antiAliasingFxaa =
                 !ExampleWidgetState.antiAliasingFxaa;
-            widget.controller.viewer.setAntiAliasing(
+            widget.viewer.setAntiAliasing(
                 ExampleWidgetState.antiAliasingMsaa,
                 ExampleWidgetState.antiAliasingFxaa,
                 ExampleWidgetState.antiAliasingTaa);
@@ -83,7 +83,7 @@ class _RenderingSubmenuState extends State<RenderingSubmenu> {
         MenuItemButton(
           onPressed: () {
             ExampleWidgetState.recording = !ExampleWidgetState.recording;
-            widget.controller.viewer.setRecording(ExampleWidgetState.recording);
+            widget.viewer.setRecording(ExampleWidgetState.recording);
           },
           child: Text(
               "Turn recording ${ExampleWidgetState.recording ? "OFF" : "ON"}) "),

examples/flutter/example/lib/menus/scene_menu.dart

@@ -6,7 +6,7 @@ import 'package:thermion_flutter_example/menus/camera_submenu.dart';
 import 'package:thermion_flutter_example/menus/rendering_submenu.dart';
 
 class SceneMenu extends StatefulWidget {
-  final ThermionFlutterPlugin? controller;
+  final ThermionViewer? controller;
   final FocusNode sharedFocusNode;
 
   const SceneMenu(
@@ -37,11 +37,11 @@ class _SceneMenuState extends State<SceneMenu> {
           ? []
           : <Widget>[
               RenderingSubmenu(
-                controller: widget.controller!,
+                viewer: widget.controller!,
               ),
-              AssetSubmenu(controller: widget.controller!),
+              AssetSubmenu(viewer: widget.controller!),
               CameraSubmenu(
-                controller: widget.controller!,
+                viewer: widget.controller!,
               ),
             ],
       builder:

examples/flutter/example/macos/Podfile.lock

@@ -1,29 +0,0 @@
-PODS:
-  - FlutterMacOS (1.0.0)
-  - path_provider_foundation (0.0.1):
-    - Flutter
-    - FlutterMacOS
-  - thermion_flutter (0.0.1):
-    - FlutterMacOS
-
-DEPENDENCIES:
-  - FlutterMacOS (from `Flutter/ephemeral`)
-  - path_provider_foundation (from `Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin`)
-  - thermion_flutter (from `Flutter/ephemeral/.symlinks/plugins/thermion_flutter/macos`)
-
-EXTERNAL SOURCES:
-  FlutterMacOS:
-    :path: Flutter/ephemeral
-  path_provider_foundation:
-    :path: Flutter/ephemeral/.symlinks/plugins/path_provider_foundation/darwin
-  thermion_flutter:
-    :path: Flutter/ephemeral/.symlinks/plugins/thermion_flutter/macos
-
-SPEC CHECKSUMS:
-  FlutterMacOS: 8f6f14fa908a6fb3fba0cd85dbd81ec4b251fb24
-  path_provider_foundation: 2b6b4c569c0fb62ec74538f866245ac84301af46
-  thermion_flutter: e4895ade6b14d9efb6e17ed2436e89dbb87fa998
-
-PODFILE CHECKSUM: 1888651be91a8ad58692c1add9ce24279fd4e950
-
-COCOAPODS: 1.15.2

examples/flutter/example/pubspec.yaml

@@ -17,6 +17,18 @@ dependencies:
   cupertino_icons: ^1.0.2
   web:
 
+dependency_overrides:
+  thermion_flutter:
+    path: ../../../thermion_flutter/thermion_flutter
+  thermion_flutter_platform_interface:
+    path: ../../../thermion_flutter/thermion_flutter_platform_interface
+  thermion_flutter_ffi:
+    path: ../../../thermion_flutter/thermion_flutter_ffi
+  thermion_flutter_web:
+    path: ../../../thermion_flutter/thermion_flutter_web
+  thermion_dart:
+    path: ../../../thermion_dart
+
 dev_dependencies:
   flutter_test:
     sdk: flutter
@@ -36,4 +48,4 @@ flutter:
     - assets/BusterDrone/
     - assets/BusterDrone/textures/
     - assets/FlightHelmet/
-  
+  

examples/flutter/quickstart/ios/Podfile

@@ -1,5 +1,5 @@
 # Uncomment this line to define a global platform for your project
-# platform :ios, '12.0'
+platform :ios, '13.0'
 
 # CocoaPods analytics sends network stats synchronously affecting flutter build latency.
 ENV['COCOAPODS_DISABLE_STATS'] = 'true'

examples/flutter/quickstart/ios/Podfile.lock

@@ -0,0 +1,22 @@
+PODS:
+  - Flutter (1.0.0)
+  - thermion_flutter (0.0.1):
+    - Flutter
+
+DEPENDENCIES:
+  - Flutter (from `Flutter`)
+  - thermion_flutter (from `.symlinks/plugins/thermion_flutter/ios`)
+
+EXTERNAL SOURCES:
+  Flutter:
+    :path: Flutter
+  thermion_flutter:
+    :path: ".symlinks/plugins/thermion_flutter/ios"
+
+SPEC CHECKSUMS:
+  Flutter: e0871f40cf51350855a761d2e70bf5af5b9b5de7
+  thermion_flutter: c965e09831858465a1a8df59ff97e40a4d002773
+
+PODFILE CHECKSUM: a57f30d18f102dd3ce366b1d62a55ecbef2158e5
+
+COCOAPODS: 1.15.2

examples/flutter/quickstart/ios/Runner.xcodeproj/project.pbxproj

@@ -14,6 +14,8 @@
 		97C146FC1CF9000F007C117D /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FA1CF9000F007C117D /* Main.storyboard */; };
 		97C146FE1CF9000F007C117D /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FD1CF9000F007C117D /* Assets.xcassets */; };
 		97C147011CF9000F007C117D /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 97C146FF1CF9000F007C117D /* LaunchScreen.storyboard */; };
+		F657CCCFB062AF56C7F1E15C /* Pods_RunnerTests.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 3D988E66CA93AB1163F3B4F2 /* Pods_RunnerTests.framework */; };
+		F8DC37C0013EE3DC8802435E /* Pods_Runner.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = B0831D015898C7047513698C /* Pods_Runner.framework */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -42,12 +44,17 @@
 /* Begin PBXFileReference section */
 		1498D2321E8E86230040F4C2 /* GeneratedPluginRegistrant.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = GeneratedPluginRegistrant.h; sourceTree = "<group>"; };
 		1498D2331E8E89220040F4C2 /* GeneratedPluginRegistrant.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = GeneratedPluginRegistrant.m; sourceTree = "<group>"; };
+		31D54E0731320192F7631461 /* Pods-RunnerTests.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.debug.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.debug.xcconfig"; sourceTree = "<group>"; };
 		331C807B294A618700263BE5 /* RunnerTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RunnerTests.swift; sourceTree = "<group>"; };
 		331C8081294A63A400263BE5 /* RunnerTests.xctest */ = {isa = PBXFileReference; explicitFileType = wrapper.cfbundle; includeInIndex = 0; path = RunnerTests.xctest; sourceTree = BUILT_PRODUCTS_DIR; };
+		3680A9DFE5EC3E59C051B544 /* Pods-Runner.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.release.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.release.xcconfig"; sourceTree = "<group>"; };
 		3B3967151E833CAA004F5970 /* AppFrameworkInfo.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = AppFrameworkInfo.plist; path = Flutter/AppFrameworkInfo.plist; sourceTree = "<group>"; };
+		3D988E66CA93AB1163F3B4F2 /* Pods_RunnerTests.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_RunnerTests.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		704E1C99CAABFB056933D88F /* Pods-Runner.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.debug.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.debug.xcconfig"; sourceTree = "<group>"; };
 		74858FAD1ED2DC5600515810 /* Runner-Bridging-Header.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = "Runner-Bridging-Header.h"; sourceTree = "<group>"; };
 		74858FAE1ED2DC5600515810 /* AppDelegate.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		7AFA3C8E1D35360C0083082E /* Release.xcconfig */ = {isa = PBXFileReference; lastKnownFileType = text.xcconfig; name = Release.xcconfig; path = Flutter/Release.xcconfig; sourceTree = "<group>"; };
+		8C0FE5C77038897D844C5D42 /* Pods-Runner.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-Runner.profile.xcconfig"; path = "Target Support Files/Pods-Runner/Pods-Runner.profile.xcconfig"; sourceTree = "<group>"; };
 		9740EEB21CF90195004384FC /* Debug.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Debug.xcconfig; path = Flutter/Debug.xcconfig; sourceTree = "<group>"; };
 		9740EEB31CF90195004384FC /* Generated.xcconfig */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.xcconfig; name = Generated.xcconfig; path = Flutter/Generated.xcconfig; sourceTree = "<group>"; };
 		97C146EE1CF9000F007C117D /* Runner.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = Runner.app; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -55,6 +62,9 @@
 		97C146FD1CF9000F007C117D /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		97C147001CF9000F007C117D /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
 		97C147021CF9000F007C117D /* Info.plist */ = {isa = PBXFileReference; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
+		9CD72080C199DAE3518D4C3D /* Pods-RunnerTests.profile.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.profile.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.profile.xcconfig"; sourceTree = "<group>"; };
+		B0831D015898C7047513698C /* Pods_Runner.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_Runner.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		BA68F2C1572D8BC92CC4C4FF /* Pods-RunnerTests.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-RunnerTests.release.xcconfig"; path = "Target Support Files/Pods-RunnerTests/Pods-RunnerTests.release.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -62,12 +72,30 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				F8DC37C0013EE3DC8802435E /* Pods_Runner.framework in Frameworks */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		FA72758808529BDB8770545F /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				F657CCCFB062AF56C7F1E15C /* Pods_RunnerTests.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		0DB20859A61D425430A5D097 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				B0831D015898C7047513698C /* Pods_Runner.framework */,
+				3D988E66CA93AB1163F3B4F2 /* Pods_RunnerTests.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
 		331C8082294A63A400263BE5 /* RunnerTests */ = {
 			isa = PBXGroup;
 			children = (
@@ -76,6 +104,20 @@
 			path = RunnerTests;
 			sourceTree = "<group>";
 		};
+		4A129A4D3EB41F9DE0778AAC /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				704E1C99CAABFB056933D88F /* Pods-Runner.debug.xcconfig */,
+				3680A9DFE5EC3E59C051B544 /* Pods-Runner.release.xcconfig */,
+				8C0FE5C77038897D844C5D42 /* Pods-Runner.profile.xcconfig */,
+				31D54E0731320192F7631461 /* Pods-RunnerTests.debug.xcconfig */,
+				BA68F2C1572D8BC92CC4C4FF /* Pods-RunnerTests.release.xcconfig */,
+				9CD72080C199DAE3518D4C3D /* Pods-RunnerTests.profile.xcconfig */,
+			);
+			name = Pods;
+			path = Pods;
+			sourceTree = "<group>";
+		};
 		9740EEB11CF90186004384FC /* Flutter */ = {
 			isa = PBXGroup;
 			children = (
@@ -94,6 +136,8 @@
 				97C146F01CF9000F007C117D /* Runner */,
 				97C146EF1CF9000F007C117D /* Products */,
 				331C8082294A63A400263BE5 /* RunnerTests */,
+				4A129A4D3EB41F9DE0778AAC /* Pods */,
+				0DB20859A61D425430A5D097 /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -128,8 +172,10 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 331C8087294A63A400263BE5 /* Build configuration list for PBXNativeTarget "RunnerTests" */;
 			buildPhases = (
+				78F05AF37D9E628BE6E89ABD /* [CP] Check Pods Manifest.lock */,
 				331C807D294A63A400263BE5 /* Sources */,
 				331C807F294A63A400263BE5 /* Resources */,
+				FA72758808529BDB8770545F /* Frameworks */,
 			);
 			buildRules = (
 			);
@@ -145,6 +191,7 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 97C147051CF9000F007C117D /* Build configuration list for PBXNativeTarget "Runner" */;
 			buildPhases = (
+				C7C2718364AC4E2451407065 /* [CP] Check Pods Manifest.lock */,
 				9740EEB61CF901F6004384FC /* Run Script */,
 				97C146EA1CF9000F007C117D /* Sources */,
 				97C146EB1CF9000F007C117D /* Frameworks */,
@@ -238,6 +285,28 @@
 			shellPath = /bin/sh;
 			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" embed_and_thin";
 		};
+		78F05AF37D9E628BE6E89ABD /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-RunnerTests-checkManifestLockResult.txt",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
+			showEnvVarsInLog = 0;
+		};
 		9740EEB61CF901F6004384FC /* Run Script */ = {
 			isa = PBXShellScriptBuildPhase;
 			alwaysOutOfDate = 1;
@@ -253,6 +322,28 @@
 			shellPath = /bin/sh;
 			shellScript = "/bin/sh \"$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh\" build";
 		};
+		C7C2718364AC4E2451407065 /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-Runner-checkManifestLockResult.txt",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
+			showEnvVarsInLog = 0;
+		};
 /* End PBXShellScriptBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
@@ -365,6 +456,7 @@
 				DEVELOPMENT_TEAM = TM2B4SJXNJ;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -379,6 +471,7 @@
 		};
 		331C8088294A63A400263BE5 /* Debug */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = 31D54E0731320192F7631461 /* Pods-RunnerTests.debug.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CODE_SIGN_STYLE = Automatic;
@@ -396,6 +489,7 @@
 		};
 		331C8089294A63A400263BE5 /* Release */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = BA68F2C1572D8BC92CC4C4FF /* Pods-RunnerTests.release.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CODE_SIGN_STYLE = Automatic;
@@ -411,6 +505,7 @@
 		};
 		331C808A294A63A400263BE5 /* Profile */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9CD72080C199DAE3518D4C3D /* Pods-RunnerTests.profile.xcconfig */;
 			buildSettings = {
 				BUNDLE_LOADER = "$(TEST_HOST)";
 				CODE_SIGN_STYLE = Automatic;
@@ -545,6 +640,7 @@
 				DEVELOPMENT_TEAM = TM2B4SJXNJ;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -568,6 +664,7 @@
 				DEVELOPMENT_TEAM = TM2B4SJXNJ;
 				ENABLE_BITCODE = NO;
 				INFOPLIST_FILE = Runner/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",

examples/flutter/quickstart/ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -4,4 +4,7 @@
    <FileRef
       location = "group:Runner.xcodeproj">
    </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
 </Workspace>

examples/flutter/quickstart/lib/main.dart

@@ -4,7 +4,6 @@ import 'package:thermion_flutter/thermion_flutter.dart';
 import 'package:vector_math/vector_math_64.dart' as v;
 import 'dart:math';
 
-
 void main() {
   runApp(const MyApp());
 }
@@ -35,40 +34,59 @@ class MyHomePage extends StatefulWidget {
 
 class _MyHomePageState extends State<MyHomePage> {
   bool _loaded = false;
-  late ThermionFlutterPlugin _thermionFlutterPlugin;
-  late Future<ThermionViewer> _thermionViewer;
+  ThermionViewer? _thermionViewer;
 
   @override
   void initState() {
     super.initState();
-    _thermionFlutterPlugin = ThermionFlutterPlugin();
-    _thermionViewer = _thermionFlutterPlugin.initialize();
+  }
+
+  ThermionFlutterTexture? _texture;
+
+  Future _load() async {
+    var viewer = await ThermionFlutterPlugin.createViewer();
+    _thermionViewer = viewer;
+    _thermionViewer!.loadSkybox("assets/default_env_skybox.ktx");
+    _thermionViewer!.loadGlb("assets/cube.glb");
+
+    _thermionViewer!.setCameraPosition(0, 1, 10);
+    _thermionViewer!.setCameraRotation(
+        v.Quaternion.axisAngle(v.Vector3(1, 0, 0), -30 / 180 * pi) *
+            v.Quaternion.axisAngle(v.Vector3(0, 1, 0), 15 / 180 * pi));
+    _thermionViewer!.addLight(LightType.SUN, 7500, 50000, 0, 0, 0, 1, -1, -1);
+    _thermionViewer!.setRendering(true);
+    _loaded = true;
+
+    setState(() {});
+  }
+
+  Future _unload() async {
+    await ThermionFlutterPlugin.destroyTexture(_texture!);
+    var viewer = _thermionViewer!;
+    _thermionViewer = null;
+    setState(() {});
+    await viewer.dispose();
+    _loaded = false;
+    setState(() {});
+  }
+
+  Widget _loadButton() {
+    return Center(
+        child: ElevatedButton(child: const Text("Load"), onPressed: _load));
+  }
+
+  Widget _unloadButton() {
+    return Center(
+        child: ElevatedButton(child: const Text("Unload"), onPressed: _unload));
   }
 
   @override
   Widget build(BuildContext context) {
     return Stack(children: [
-      Positioned.fill(child: ThermionWidget(plugin: _thermionFlutterPlugin)),
-      if (!_loaded)
-        Center(
-            child: ElevatedButton(
-                child: const Text("Load"),
-                onPressed: () async {
-                  var viewer = await _thermionViewer;
-                  await viewer.loadSkybox("assets/default_env_skybox.ktx");
-                  await viewer.loadGlb("assets/cube.glb");
-
-                  await viewer.setCameraPosition(0, 1, 10);
-                  await viewer.setCameraRotation(v.Quaternion.axisAngle(
-                          v.Vector3(1, 0, 0), -30 / 180 * pi) *
-                      v.Quaternion.axisAngle(
-                          v.Vector3(0, 1, 0), 15 / 180 * pi));
-                  await viewer.addLight(
-                      LightType.SUN, 7500, 50000, 0, 0, 0, 1, -1, -1);
-                  await viewer.setRendering(true);
-                  _loaded = true;
-                  setState(() {});
-                }))
+      if (_thermionViewer != null)
+        Positioned.fill(child: ThermionWidget(viewer: _thermionViewer!)),
+      if (!_loaded) _loadButton(),
+      if (_loaded) _unloadButton(),
     ]);
   }
 }

examples/flutter/quickstart/pubspec.yaml

@@ -19,7 +19,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 version: 1.0.0+1
 
 environment:
-  sdk: '>=3.5.0-250.0.dev <4.0.0'
+  sdk: '>=3.3.0 <4.0.0'
 
 # Dependencies specify other packages that your package needs in order to work.
 # To automatically upgrade your package dependencies to the latest versions
@@ -30,11 +30,7 @@ environment:
 dependencies:
   flutter:
     sdk: flutter
-  thermion_flutter:
-    path: ../../../thermion_flutter/thermion_flutter
-
-  # The following adds the Cupertino Icons font to your application.
-  # Use with the CupertinoIcons class for iOS style icons.
+  thermion_flutter: 
   cupertino_icons: ^1.0.8
   vector_math: ^2.1.4
 

melos.yaml

@@ -0,0 +1,4 @@
+name: thermion_workspace
+packages:
+  - thermion_dart
+  - thermion_flutter/**

pubspec.yaml

@@ -0,0 +1,6 @@
+name: thermion_workspace
+
+environment:
+  sdk: '>=3.0.0 <4.0.0'
+dev_dependencies:
+  melos: ^6.1.0

thermion_dart/CHANGELOG.md

@@ -1,2 +1,15 @@
+## 0.1.0+3
+
+ - **FIX**: exit build.dart early on Linux builds so we can use the package on a Linux host.
+
+## 0.1.0+2
+
+ - **REFACTOR**: rearrange some stubs/imports for easier web WASM deployment.
+
+## 0.1.0+1
+
+ - **REFACTOR**: export ThermionViewerWasm for web and hide FFI/WASM version.
+ - **FIX**: use preserveDrawingBuffer=true on web.
+
 ## 0.0.1
 * First release of Dart-only package

thermion_dart/hook/build.dart

@@ -6,12 +6,30 @@ import 'package:native_toolchain_c/native_toolchain_c.dart';
 
 void main(List<String> args) async {
   await build(args, (config, output) async {
+    var logDir = Directory(
+        "${config.packageRoot.toFilePath()}.dart_tool/thermion_dart/log/");
+    if (!logDir.existsSync()) {
+      logDir.createSync(recursive: true);
+    }
+    var logFile = File(logDir.path + "/build.log");
 
-    final logger = Logger("")..level = Level.ALL
-        ..onRecord.listen((record) => print(record.message));
+    final logger = Logger("")
+      ..level = Level.ALL
+      ..onRecord.listen((record) => logFile.writeAsStringSync(
+          record.message + "\n",
+          mode: FileMode.append,
+          flush: true));
 
     var platform = config.targetOS.toString().toLowerCase();
 
+    // We don't support Linux (yet), so the native/Filament libraries won't be 
+    // compiled/available. However, we still want to be able to run the Dart 
+    // package itself on a Linux host(e.g. for dart_services backed), so if 
+    // we detect that we're running on Linux, just exit here.
+    if (platform == "linux") {
+      return;
+    }
+
     var libDir = config.dryRun ? "" : (await getLibDir(config, logger)).path;
 
     final packageName = config.packageName;
@@ -71,7 +89,7 @@ void main(List<String> args) async {
     } else {
       libs.add("stdc++");
     }
-    final flags = [];
+    final flags = []; //"-fsanitize=address"];
     final defines = <String, String?>{};
     var frameworks = [];
 
@@ -85,7 +103,15 @@ void main(List<String> args) async {
     }
 
     if (platform == "ios") {
-      frameworks.addAll(['Foundation', 'CoreGraphics', 'QuartzCore', 'GLKit', "Metal", 'CoreVideo', 'OpenGLES']);
+      frameworks.addAll([
+        'Foundation',
+        'CoreGraphics',
+        'QuartzCore',
+        'GLKit',
+        "Metal",
+        'CoreVideo',
+        'OpenGLES'
+      ]);
     } else if (platform == "macos") {
       frameworks.addAll([
         'Foundation',
@@ -107,7 +133,7 @@ void main(List<String> args) async {
       sources: sources,
       includes: ['native/include', 'native/include/filament'],
       defines: defines,
-      // UNCOMMENT THIS IF YOU ARE BUILDING WITH THE CUSTOM native_toolchain_c FORK FOR WINDOWS 
+      // UNCOMMENT THIS IF YOU ARE BUILDING WITH THE CUSTOM native_toolchain_c FORK FOR WINDOWS
       // linkWith: linkWith,
       flags: [
         if (platform == "macos") '-mmacosx-version-min=13.0',
@@ -162,87 +188,90 @@ void main(List<String> args) async {
   });
 }
 
-String _FILAMENT_VERSION ="v1.51.2";
+String _FILAMENT_VERSION = "v1.51.2";
 String _getLibraryUrl(String platform, String mode) {
-   return "https://pub-c8b6266320924116aaddce03b5313c0a.r2.dev/filament-${_FILAMENT_VERSION}-${platform}-${mode}.zip";
+  return "https://pub-c8b6266320924116aaddce03b5313c0a.r2.dev/filament-${_FILAMENT_VERSION}-${platform}-${mode}.zip";
 }
 
 //
 // Download precompiled Filament libraries for the target platform from Cloudflare.
 //
 Future<Directory> getLibDir(BuildConfig config, Logger logger) async {
+  var platform = config.targetOS.toString().toLowerCase();
 
-    var platform = config.targetOS.toString().toLowerCase();
-  
-    // Except on Windows, most users will only need release builds of Filament. 
-    // Debug builds are probably only relevant if you're a package developer debugging an internal Filament issue
-    // or if you're working on Flutter+Windows (which requires the CRT debug DLLs).
-    // Also note that there are known driver issues with Android debug builds, e.g.:
-    // https://github.com/google/filament/issues/7162
-    // (these aren't present in Filament release builds).
-    // However, if you know what you're doing, you can change "release" to "debug" below.
-    // TODO - check if we can pass this as a CLI compiler flag
-    var mode = "release";
-    if(platform == "windows") {
-      mode = config.buildMode == BuildMode.debug ? "debug" : "release";
-    } 
+  // Except on Windows, most users will only need release builds of Filament.
+  // Debug builds are probably only relevant if you're a package developer debugging an internal Filament issue
+  // or if you're working on Flutter+Windows (which requires the CRT debug DLLs).
+  // Also note that there are known driver issues with Android debug builds, e.g.:
+  // https://github.com/google/filament/issues/7162
+  // (these aren't present in Filament release builds).
+  // However, if you know what you're doing, you can change "release" to "debug" below.
+  // TODO - check if we can pass this as a CLI compiler flag
+  var mode = "release";
+  if (platform == "windows") {
+    mode = config.buildMode == BuildMode.debug ? "debug" : "release";
+  }
 
-    var libDir = Directory("${config.packageRoot.toFilePath()}/.dart_tool/thermion_dart/lib/${_FILAMENT_VERSION}/$platform/$mode/");
+  var libDir = Directory(
+      "${config.packageRoot.toFilePath()}/.dart_tool/thermion_dart/lib/${_FILAMENT_VERSION}/$platform/$mode/");
 
-    if (platform == "android") {
-      final archExtension = switch (config.targetArchitecture) {
-        Architecture.arm => "armeabi-v7a",
-        Architecture.arm64 => "arm64-v8a",
-        Architecture.x64 => "x86_64",
-        Architecture.ia32 => "x86",
-        _ => throw FormatException('Invalid')
-      };
-      libDir = Directory("${libDir.path}/$archExtension/");
-    } else if(platform == "windows") {
-      if(config.targetArchitecture != Architecture.x64) {
-        throw Exception("Unsupported architecture : ${config.targetArchitecture}");
+  if (platform == "android") {
+    final archExtension = switch (config.targetArchitecture) {
+      Architecture.arm => "armeabi-v7a",
+      Architecture.arm64 => "arm64-v8a",
+      Architecture.x64 => "x86_64",
+      Architecture.ia32 => "x86",
+      _ => throw FormatException('Invalid')
+    };
+    libDir = Directory("${libDir.path}/$archExtension/");
+  } else if (platform == "windows") {
+    if (config.targetArchitecture != Architecture.x64) {
+      throw Exception(
+          "Unsupported architecture : ${config.targetArchitecture}");
+    }
+  }
+
+  final url = _getLibraryUrl(platform, mode);
+
+  final filename = url.split("/").last;
+
+  // We will write an empty file called success to the unzip directory after successfully downloading/extracting the prebuilt libraries.
+  // If this file already exists, we assume everything has been successfully extracted and skip
+  final unzipDir = platform == "android" ? libDir.parent.path : libDir.path;
+  final successToken = File("$unzipDir/success");
+  final libraryZip = File("$unzipDir/$filename");
+
+  if (!successToken.existsSync()) {
+    if (libraryZip.existsSync()) {
+      libraryZip.deleteSync();
+    }
+
+    if (!libraryZip.parent.existsSync()) {
+      libraryZip.parent.createSync(recursive: true);
+    }
+
+    logger.info(
+        "Downloading prebuilt libraries for $platform/$mode from $url to ${libraryZip}, files will be unzipped to ${unzipDir}");
+    final request = await HttpClient().getUrl(Uri.parse(url));
+    final response = await request.close();
+
+    await response.pipe(libraryZip.openWrite());
+
+    final archive = ZipDecoder().decodeBytes(await libraryZip.readAsBytes());
+
+    for (final file in archive) {
+      final filename = file.name;
+      if (file.isFile) {
+        final data = file.content as List<int>;
+        final f = File('${unzipDir}/$filename');
+        await f.create(recursive: true);
+        await f.writeAsBytes(data);
+      } else {
+        final d = Directory('${unzipDir}/$filename');
+        await d.create(recursive: true);
       }
     }
-    
-    final url = _getLibraryUrl(platform, mode);
-
-    final filename = url.split("/").last;
-
-    // Assume that the libraries exist if the directory containing them exists.
-    if (!libDir.existsSync()) {
-
-      final unzipDir = platform == "android" ? libDir.parent.path : libDir.path;
-
-      final libraryZip = File("$unzipDir/$filename");
-
-      if(libraryZip.existsSync()) {
-        libraryZip.deleteSync();
-      }
-
-      if(!libraryZip.parent.existsSync()) {
-        libraryZip.parent.createSync(recursive: true);
-      }
-
-      logger.info("Downloading prebuilt libraries for $platform/$mode from $url to ${libraryZip}, files will be unzipped to ${unzipDir}");
-      final request = await HttpClient().getUrl(Uri.parse(url));
-      final response = await request.close();
-
-      await response.pipe(libraryZip.openWrite());
-
-      final archive = ZipDecoder().decodeBytes(await libraryZip.readAsBytes());
-
-      for (final file in archive) {
-        final filename = file.name;
-        if (file.isFile) {
-          final data = file.content as List<int>;
-          final f = File('${unzipDir}/$filename');
-          await f.create(recursive: true);
-          await f.writeAsBytes(data);
-        } else {
-          final d = Directory('${unzipDir}/$filename');
-          await d.create(recursive: true);
-        }
-      }
-    }
-    return libDir;
+    successToken.writeAsStringSync("SUCCESS");
+  }
+  return libDir;
 }

thermion_dart/lib/thermion_dart.dart

@@ -1,5 +1,8 @@
 library filament_dart;
 
 export 'thermion_dart/thermion_viewer.dart';
-export 'thermion_dart/thermion_viewer_ffi.dart';
+export 'thermion_dart/thermion_viewer_stub.dart'
+  if (dart.library.io) 'thermion_dart/thermion_viewer_ffi.dart'
+  if (dart.library.js_interop)'thermion_dart/compatibility/web/interop/thermion_viewer_wasm.dart';
+
 export 'thermion_dart/entities/entity_transform_controller.dart';

thermion_dart/lib/thermion_dart/compatibility/compatibility.dart

@@ -1,3 +1 @@
-export 'web/compatibility.dart' if (dart.library.io) 'native/compatibility.dart';
-
-
+export 'native/compatibility.dart';

thermion_dart/lib/thermion_dart/compatibility/web/ffi/allocator.dart

@@ -6,7 +6,7 @@ import 'dart:convert';
 import 'dart:ffi' as ffi hide Uint8Pointer, FloatPointer;
 import 'dart:typed_data';
 
-import 'package:thermion_dart/thermion_dart/compatibility/web/thermion_dart.g.dart';
+import 'package:thermion_dart/thermion_dart/compatibility/web/ffi/thermion_dart.g.dart';
 
 import 'package:ffi/ffi.dart';
 export 'package:ffi/ffi.dart' hide StringUtf8Pointer, Utf8Pointer;

thermion_dart/lib/thermion_dart/compatibility/web/ffi/compatibility_ffi.dart

@@ -1,6 +1,6 @@
 import 'dart:async';
 import 'dart:js_interop';
-import 'package:thermion_dart/thermion_dart/compatibility/web/interop.dart';
+import 'package:thermion_dart/thermion_dart/compatibility/web/ffi/interop.dart';
 
 import "allocator.dart";
 

thermion_dart/lib/thermion_dart/compatibility/web/interop/shims/thermion_dart_api_js_shim.dart

@@ -1,403 +0,0 @@
-@JS()
-library thermion_flutter_js;
-
-import 'dart:js_interop';
-
-import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
-
-///
-/// An extension type on [JSObject] that represents a 
-/// Javascript shim implementation for the [ThermionViewer] interface.
-/// 
-extension type ThermionDartAPIJSShim(JSObject _) implements JSObject {
-
-  @JS('wasm_test')
-  external JSPromise wasm_test(String str);
-  
-  @JS('set_rendering')
-  external JSPromise set_rendering(bool render);
-
-  @JS('render')
-  external JSPromise render();
-
-  @JS('setFrameRate')
-  external JSPromise setFrameRate(int framerate);
-
-  @JS('setBackgroundImage')
-  external JSPromise setBackgroundImage(String path, bool fillHeight);
-
-  @JS('setBackgroundImagePosition')
-  external JSPromise setBackgroundImagePosition(double x, double y, bool clamp);
-
-  @JS('clearBackgroundImage')
-  external JSPromise clearBackgroundImage();
-
-  @JS('setBackgroundColor')
-  external JSPromise setBackgroundColor(
-      double r, double g, double b, double alpha);
-
-  @JS('loadSkybox')
-  external JSPromise loadSkybox(String skyboxPath);
-
-  @JS('removeSkybox')
-  external JSPromise removeSkybox();
-
-  @JS('loadIbl')
-  external JSPromise loadIbl(String lightingPath, double intensity);
-
-  @JS('rotateIbl')
-  external JSPromise rotateIbl(JSArray<JSNumber> rotationMatrix);
-
-  @JS('removeIbl')
-  external JSPromise removeIbl();
-
-  @JS('addLight')
-  external JSPromise<JSNumber> addLight(
-      int type,
-      double colour,
-      double intensity,
-      double posX,
-      double posY,
-      double posZ,
-      double dirX,
-      double dirY,
-      double dirZ,
-      double falloffRadius,
-      double spotLightConeInner,
-      double spotLightConeOuter,
-      double sunAngularRadius,
-      double sunHaloSize,
-      double sunHaloFallof,
-      bool castShadows);
-
-  @JS('removeLight')
-  external JSPromise removeLight(ThermionEntity light);
-
-  @JS('clearLights')
-  external JSPromise clearLights();
-
-  @JS('loadGlb')
-  external JSPromise<JSNumber> loadGlb(String path, int numInstances);
-
-  @JS('createInstance')
-  external JSPromise<JSNumber> createInstance(ThermionEntity entity);
-
-  @JS('getInstanceCount')
-  external JSPromise<JSNumber> getInstanceCount(ThermionEntity entity);
-
-  @JS('getInstances')
-  external JSPromise<JSArray<JSNumber>> getInstances(ThermionEntity entity);
-
-  @JS('loadGltf')
-  external JSPromise<JSNumber> loadGltf(
-      String path, String relativeResourcePath);
-
-  @JS('panStart')
-  external JSPromise panStart(double x, double y);
-
-  @JS('panUpdate')
-  external JSPromise panUpdate(double x, double y);
-
-  @JS('panEnd')
-  external JSPromise panEnd();
-
-  @JS('rotateStart')
-  external JSPromise rotateStart(double x, double y);
-
-  @JS('rotateUpdate')
-  external JSPromise rotateUpdate(double x, double y);
-
-  @JS('rotateEnd')
-  external JSPromise rotateEnd();
-
-  @JS('setMorphTargetWeights')
-  external JSPromise setMorphTargetWeights(
-      ThermionEntity entity, JSArray<JSNumber> weights);
-
-  @JS('getMorphTargetNames')
-  external JSPromise<JSArray<JSString>> getMorphTargetNames(
-      ThermionEntity entity, ThermionEntity childEntity);
-
-  @JS('getBoneNames')
-  external JSPromise<JSArray<JSString>> getBoneNames(
-      ThermionEntity entity, int skinIndex);
-
-  @JS('getAnimationNames')
-  external JSPromise<JSArray<JSString>> getAnimationNames(
-      ThermionEntity entity);
-
-  @JS('getAnimationDuration')
-  external JSPromise<JSNumber> getAnimationDuration(
-      ThermionEntity entity, int animationIndex);
-
-  @JS('setMorphAnimationData')
-  external JSPromise setMorphAnimationData(
-      ThermionEntity entity,
-      JSArray<JSArray<JSNumber>> animation,
-      JSArray<JSString> morphTargets,
-      JSArray<JSString>? targetMeshNames,
-      double frameLengthInMs);
-
-  @JS('resetBones')
-  external JSPromise resetBones(ThermionEntity entity);
-
-  @JS('addBoneAnimation')
-  external JSPromise addBoneAnimation(
-      ThermionEntity entity,
-      JSArray<JSString> bones,
-      JSArray<JSArray<JSArray<JSNumber>>> frameData,
-      JSNumber frameLengthInMs,
-      JSNumber spaceEnum,
-      JSNumber skinIndex,
-      JSNumber fadeInInSecs,
-      JSNumber fadeOutInSecs,
-      JSNumber maxDelta);
-
-  @JS('removeEntity')
-  external JSPromise removeEntity(ThermionEntity entity);
-
-  @JS('clearEntities')
-  external JSPromise clearEntities();
-
-  @JS('zoomBegin')
-  external JSPromise zoomBegin();
-
-  @JS('zoomUpdate')
-  external JSPromise zoomUpdate(double x, double y, double z);
-
-  @JS('zoomEnd')
-  external JSPromise zoomEnd();
-
-  @JS('playAnimation')
-  external JSPromise playAnimation(
-    ThermionEntity entity,
-    int index,
-    bool loop,
-    bool reverse,
-    bool replaceActive,
-    double crossfade,
-  );
-
-  @JS('playAnimationByName')
-  external JSPromise playAnimationByName(
-    ThermionEntity entity,
-    String name,
-    bool loop,
-    bool reverse,
-    bool replaceActive,
-    double crossfade,
-  );
-
-  @JS('setAnimationFrame')
-  external JSPromise setAnimationFrame(
-      ThermionEntity entity, int index, int animationFrame);
-
-  @JS('stopAnimation')
-  external JSPromise stopAnimation(ThermionEntity entity, int animationIndex);
-
-  @JS('stopAnimationByName')
-  external JSPromise stopAnimationByName(ThermionEntity entity, String name);
-
-  @JS('setCamera')
-  external JSPromise setCamera(ThermionEntity entity, String? name);
-
-  @JS('setMainCamera')
-  external JSPromise setMainCamera();
-
-  @JS('getMainCamera')
-  external JSPromise<JSNumber> getMainCamera();
-
-  @JS('setCameraFov')
-  external JSPromise setCameraFov(double degrees, double width, double height);
-
-  @JS('setToneMapping')
-  external JSPromise setToneMapping(int mapper);
-
-  @JS('setBloom')
-  external JSPromise setBloom(double bloom);
-
-  @JS('setCameraFocalLength')
-  external JSPromise setCameraFocalLength(double focalLength);
-
-  @JS('setCameraCulling')
-  external JSPromise setCameraCulling(double near, double far);
-
-  @JS('getCameraCullingNear')
-  external JSPromise<JSNumber> getCameraCullingNear();
-
-  @JS('getCameraCullingFar')
-  external JSPromise<JSNumber> getCameraCullingFar();
-
-  @JS('setCameraFocusDistance')
-  external JSPromise setCameraFocusDistance(double focusDistance);
-
-  @JS('getCameraPosition')
-  external JSPromise<JSArray<JSNumber>> getCameraPosition();
-
-  @JS('getCameraModelMatrix')
-  external JSPromise<JSArray<JSNumber>> getCameraModelMatrix();
-
-  @JS('getCameraViewMatrix')
-  external JSPromise<JSArray<JSNumber>> getCameraViewMatrix();
-
-  @JS('getCameraProjectionMatrix')
-  external JSPromise<JSArray<JSNumber>> getCameraProjectionMatrix();
-
-  @JS('getCameraCullingProjectionMatrix')
-  external JSPromise<JSArray<JSNumber>> getCameraCullingProjectionMatrix();
-
-  @JS('getCameraFrustum')
-  external JSPromise<JSObject> getCameraFrustum();
-
-  @JS('setCameraPosition')
-  external JSPromise setCameraPosition(double x, double y, double z);
-
-  @JS('getCameraRotation')
-  external JSPromise<JSArray<JSNumber>> getCameraRotation();
-
-  @JS('moveCameraToAsset')
-  external JSPromise moveCameraToAsset(ThermionEntity entity);
-
-  @JS('setViewFrustumCulling')
-  external JSPromise setViewFrustumCulling(JSBoolean enabled);
-
-  @JS('setCameraExposure')
-  external JSPromise setCameraExposure(
-      double aperture, double shutterSpeed, double sensitivity);
-
-  @JS('setCameraRotation')
-  external JSPromise setCameraRotation(JSArray<JSNumber> quaternion);
-
-  @JS('setCameraModelMatrix')
-  external JSPromise setCameraModelMatrix(JSArray<JSNumber> matrix);
-
-  @JS('setMaterialColor')
-  external JSPromise setMaterialColor(ThermionEntity entity, String meshName,
-      int materialIndex, double r, double g, double b, double a);
-
-  @JS('transformToUnitCube')
-  external JSPromise transformToUnitCube(ThermionEntity entity);
-
-  @JS('setPosition')
-  external JSPromise setPosition(
-      ThermionEntity entity, double x, double y, double z);
-
-  @JS('setScale')
-  external JSPromise setScale(ThermionEntity entity, double scale);
-
-  @JS('setRotation')
-  external JSPromise setRotation(
-      ThermionEntity entity, double rads, double x, double y, double z);
-
-  @JS('queuePositionUpdate')
-  external JSPromise queuePositionUpdate(
-      ThermionEntity entity, double x, double y, double z, bool relative);
-
-  @JS('queueRotationUpdate')
-  external JSPromise queueRotationUpdate(ThermionEntity entity, double rads,
-      double x, double y, double z, bool relative);
-
-  @JS('queueRotationUpdateQuat')
-  external JSPromise queueRotationUpdateQuat(
-      ThermionEntity entity, JSArray<JSNumber> quat, bool relative);
-
-  @JS('setPostProcessing')
-  external JSPromise setPostProcessing(bool enabled);
-
-  @JS('setAntiAliasing')
-  external JSPromise setAntiAliasing(bool msaa, bool fxaa, bool taa);
-
-  @JS('setRotationQuat')
-  external JSPromise setRotationQuat(
-      ThermionEntity entity, JSArray<JSNumber> rotation);
-
-  @JS('reveal')
-  external JSPromise reveal(ThermionEntity entity, String? meshName);
-
-  @JS('hide')
-  external JSPromise hide(ThermionEntity entity, String? meshName);
-
-  @JS('pick')
-  external void pick(int x, int y);
-
-  @JS('getNameForEntity')
-  external String? getNameForEntity(ThermionEntity entity);
-
-  @JS('setCameraManipulatorOptions')
-  external JSPromise setCameraManipulatorOptions(
-    int mode,
-    double orbitSpeedX,
-    double orbitSpeedY,
-    double zoomSpeed,
-  );
-
-  @JS('getChildEntities')
-  external JSPromise<JSArray<JSNumber>> getChildEntities(
-      ThermionEntity parent, bool renderableOnly);
-
-  @JS('getChildEntity')
-  external JSPromise<JSNumber> getChildEntity(
-      ThermionEntity parent, String childName);
-
-  @JS('getChildEntityNames')
-  external JSPromise<JSArray<JSString>> getChildEntityNames(
-      ThermionEntity entity, bool renderableOnly);
-
-  @JS('setRecording')
-  external JSPromise setRecording(JSBoolean recording);
-
-  @JS('setRecordingOutputDirectory')
-  external JSPromise setRecordingOutputDirectory(String outputDirectory);
-
-  @JS('addAnimationComponent')
-  external JSPromise addAnimationComponent(ThermionEntity entity);
-
-  @JS('removeAnimationComponent')
-  external JSPromise removeAnimationComponent(ThermionEntity entity);
-
-  @JS('addCollisionComponent')
-  external JSPromise addCollisionComponent(ThermionEntity entity);
-
-  @JS('removeCollisionComponent')
-  external JSPromise removeCollisionComponent(ThermionEntity entity);
-
-  @JS('createGeometry')
-  external JSPromise<JSNumber> createGeometry(JSArray<JSNumber> vertices,
-      JSArray<JSNumber> indices, String? materialPath, int primitiveType);
-
-  @JS('setParent')
-  external JSPromise setParent(ThermionEntity child, ThermionEntity parent);
-
-  @JS('getParent')
-  external JSPromise<JSNumber> getParent(ThermionEntity child);
-
-  @JS('getParent')
-  external JSPromise<JSNumber> getBone(
-      ThermionEntity child, int boneIndex, int skinIndex);
-
-  @JS('testCollisions')
-  external JSPromise testCollisions(ThermionEntity entity);
-
-  @JS('setPriority')
-  external JSPromise setPriority(ThermionEntity entityId, int priority);
-
-  @JS('getLocalTransform')
-  external JSPromise<JSArray<JSNumber>> getLocalTransform(
-      ThermionEntity entity);
-
-  @JS('getWorldTransform')
-  external JSPromise<JSArray<JSNumber>> getWorldTransform(
-      ThermionEntity entity);
-
-  @JS('updateBoneMatrices')
-  external JSPromise updateBoneMatrices(ThermionEntity entity);
-
-  @JS('setTransform')
-  external JSPromise setTransform(
-      ThermionEntity entity, JSArray<JSNumber> transform);
-
-  @JS('setBoneTransform')
-  external JSPromise setBoneTransform(
-      ThermionEntity entity, int boneIndex, JSArray<JSNumber> transform, int skinIndex);
-}
-

thermion_dart/lib/thermion_dart/compatibility/web/interop/thermion_viewer_dart_bridge.dart

@@ -2,7 +2,7 @@
 library thermion_flutter_js;
 
 import 'dart:js_interop';
-import 'package:thermion_dart/thermion_dart/compatibility/web/interop/shims/thermion_viewer_js_shim.dart';
+import 'package:thermion_dart/thermion_dart/compatibility/web/interop/thermion_viewer_js_shim.dart';
 
 import 'package:vector_math/vector_math_64.dart' as v64;
 import 'package:animation_tools_dart/animation_tools_dart.dart';
@@ -15,19 +15,18 @@ import 'package:vector_math/vector_math_64.dart';
 /// A (Dart) class that wraps a (Dart) instance of [ThermionViewer],
 /// but exported to JS by binding to a global property.
 /// This is effectively an implementation of [ThermionViewerJSShim];
-/// allowing users to interact with an instance of [ThermionViewer] 
-/// (presumably compiled to WASM) from any Javascript context (including 
+/// allowing users to interact with an instance of [ThermionViewer]
+/// (presumably compiled to WASM) from any Javascript context (including
 /// the browser console).
 ///
 @JSExport()
-class ThermionViewerFFIJSDartBridge {
+class ThermionViewerJSDartBridge {
   final ThermionViewer viewer;
 
-  ThermionViewerFFIJSDartBridge(this.viewer);
-  
-  void bind(
-      {String globalPropertyName = "filamentViewer"}) {
-    var wrapper = createJSInteropWrapper<ThermionViewerFFIJSDartBridge>(this)
+  ThermionViewerJSDartBridge(this.viewer);
+
+  void bind({String globalPropertyName = "thermionViewer"}) {
+    var wrapper = createJSInteropWrapper<ThermionViewerJSDartBridge>(this)
         as ThermionViewerJSShim;
     globalContext.setProperty(globalPropertyName.toJS, wrapper);
   }
@@ -131,10 +130,13 @@ class ThermionViewerFFIJSDartBridge {
 
   @JSExport()
   JSPromise<JSNumber> loadGlb(String path, {int numInstances = 1}) {
+    print("Loading GLB from path $path with numInstances $numInstances");
     return viewer
         .loadGlb(path, numInstances: numInstances)
         .then((entity) => entity.toJS)
-        .toJS;
+        .catchError((err) {
+          print("Error: $err");
+        }).toJS;
   }
 
   @JSExport()

thermion_dart/lib/thermion_dart/compatibility/web/interop/thermion_viewer_js.dart

@@ -3,25 +3,26 @@ import 'dart:js_interop_unsafe';
 import 'dart:math';
 
 import 'package:animation_tools_dart/animation_tools_dart.dart';
+import 'package:thermion_dart/thermion_dart/scene.dart';
 import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
 
-import 'package:thermion_dart/thermion_dart/scene.dart';
+import 'package:thermion_dart/thermion_dart/scene_impl.dart';
 import 'package:vector_math/vector_math_64.dart';
-import 'shims/thermion_viewer_js_shim.dart';
+import 'thermion_viewer_js_shim.dart';
 
 ///
 /// An [ThermionViewer] implementation that forwards calls to
 /// a corresponding Javascript shim implementation (see [ThermionViewerJSShim]).
 ///
-class ThermionViewerFFIJS implements ThermionViewer {
+class ThermionViewerJS implements ThermionViewer {
   late final ThermionViewerJSShim _shim;
 
-  ThermionViewerFFIJS.fromGlobalProperty(String globalPropertyName) {
+  ThermionViewerJS.fromGlobalProperty(String globalPropertyName) {
     this._shim = globalContext.getProperty(globalPropertyName.toJS)
         as ThermionViewerJSShim;
   }
 
-  ThermionViewerFFIJS(this._shim);
+  ThermionViewerJS(this._shim);
 
   @override
   Future<bool> get initialized async {
@@ -56,6 +57,9 @@ class ThermionViewerFFIJS implements ThermionViewer {
   @override
   Future<void> dispose() async {
     await _shim.dispose().toDart;
+    for (final callback in _onDispose) {
+      callback.call();
+    }
   }
 
   @override
@@ -813,4 +817,13 @@ class ThermionViewerFFIJS implements ThermionViewer {
   Future updateBoneMatrices(ThermionEntity entity) {
     return _shim.updateBoneMatrices(entity).toDart;
   }
+
+  final _onDispose = <Future Function()>[];
+
+  ///
+  ///
+  ///
+  void onDispose(Future Function() callback) {
+    _onDispose.add(callback);
+  }
 }

thermion_dart/lib/thermion_dart/scene.dart

@@ -1,120 +1,48 @@
+import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
 import 'dart:async';
 
-import 'thermion_viewer.dart';
-
 ///
 /// For now, this class just holds the entities that have been loaded (though not necessarily visible in the Filament Scene).
 ///
-class SceneImpl extends Scene {
-
-  ThermionViewer controller;
-
-  SceneImpl(this.controller);
-
-  @override
+abstract class Scene {
+  ///
+  /// The last entity clicked/tapped in the viewport (internally, the result of calling pick);
   ThermionEntity? selected;
 
-  final _onUpdatedController = StreamController<bool>.broadcast();
-  @override
-  Stream<bool> get onUpdated => _onUpdatedController.stream;
-
-  final _onLoadController = StreamController<ThermionEntity>.broadcast();
-  @override
-  Stream<ThermionEntity> get onLoad => _onLoadController.stream;
-
-  final _onUnloadController = StreamController<ThermionEntity>.broadcast();
-  @override
-  Stream<ThermionEntity> get onUnload => _onUnloadController.stream;
-
-  final _lights = <ThermionEntity>{};
-  final _entities = <ThermionEntity>{};
-
-  void registerLight(ThermionEntity entity) {
-    _lights.add(entity);
-    _onLoadController.sink.add(entity);
-    _onUpdatedController.add(true);
-  }
-
-  void unregisterLight(ThermionEntity entity) async {
-    var children = await controller.getChildEntities(entity, true);
-    if (selected == entity || children.contains(selected)) {
-      selected = null;
-      controller.gizmo?.detach();
-    }
-    _lights.remove(entity);
-    _onUnloadController.add(entity);
-    _onUpdatedController.add(true);
-  }
-
-  void unregisterEntity(ThermionEntity entity) async {
-    var children = await controller.getChildEntities(entity, true);
-    if (selected == entity || children.contains(selected)) {
-      selected = null;
-      
-      controller.gizmo?.detach();
-    }
-    _entities.remove(entity);
-    _onUnloadController.add(entity);
-    _onUpdatedController.add(true);
-  }
-
-  void registerEntity(ThermionEntity entity) {
-    _entities.add(entity);
-    _onLoadController.sink.add(entity);
-    _onUpdatedController.add(true);
-  }
-
-  void clearLights() {
-    for (final light in _lights) {
-      if (selected == light) {
-        selected = null;
-        controller.gizmo?.detach();
-      }
-      _onUnloadController.add(light);
-    }
-
-    _lights.clear();
-    _onUpdatedController.add(true);
-  }
-
-  void clearEntities() {
-    for (final entity in _entities) {
-      if (selected == entity) {
-        selected = null;
-        controller.gizmo?.detach();
-      }
-      _onUnloadController.add(entity);
-    }
-    _entities.clear();
-    _onUpdatedController.add(true);
-  }
+  ///
+  /// A Stream updated whenever an entity is added/removed from the scene.
+  ///
+  Stream<bool> get onUpdated;
 
   ///
-  /// Lists all entities currently loaded (not necessarily active in the scene).
+  /// A Stream containing every ThermionEntity added to the scene (i.e. via [loadGlb], [loadGltf] or [addLight]).
+  /// This is provided for convenience so you can set listeners in front-end widgets that can respond to entity loads without manually passing around the ThermionEntity returned from those methods.
   ///
-  Iterable<ThermionEntity> listLights() {
-    return _lights;
-  }
+  Stream<ThermionEntity> get onLoad;
 
-  @override
-  Iterable<ThermionEntity> listEntities() {
-    return _entities;
-  }
+  ///
+  /// A Stream containing every ThermionEntity removed from the scene (i.e. via [removeEntity], [clearEntities], [removeLight] or [clearLights]).
 
-  void registerSelected(ThermionEntity entity) {
-    selected = entity;
-    _onUpdatedController.add(true);
-  }
+  Stream<ThermionEntity> get onUnload;
 
-  void unregisterSelected() {
-    selected = null;
-    _onUpdatedController.add(true);
-  }
+  ///
+  /// Lists all light entities currently loaded (not necessarily active in the scene). Does not account for instances.
+  ///
+  Iterable<ThermionEntity> listLights();
 
-  @override
-  void select(ThermionEntity entity) {
-    selected = entity;
-    controller.gizmo?.attach(entity);
-    _onUpdatedController.add(true);
-  }
-}
+  ///
+  /// Lists all entities currently loaded (not necessarily active in the scene). Does not account for instances.
+  ///
+  Iterable<ThermionEntity> listEntities();
+
+  ///
+  /// Attach the gizmo to the specified entity.
+  ///
+  void select(ThermionEntity entity);
+
+  ///
+  ///
+  ///
+  void registerEntity(ThermionEntity entity);
+
+}

thermion_dart/lib/thermion_dart/scene_impl.dart

@@ -0,0 +1,125 @@
+import 'dart:async';
+import 'package:thermion_dart/thermion_dart/scene.dart';
+import 'thermion_viewer.dart';
+
+///
+/// For now, this class just holds the entities that have been loaded (though not necessarily visible in the Filament Scene).
+///
+class SceneImpl extends Scene {
+  ThermionViewer controller;
+
+  SceneImpl(this.controller);
+
+  @override
+  ThermionEntity? selected;
+
+  final _onUpdatedController = StreamController<bool>.broadcast();
+  @override
+  Stream<bool> get onUpdated => _onUpdatedController.stream;
+
+  final _onLoadController = StreamController<ThermionEntity>.broadcast();
+  @override
+  Stream<ThermionEntity> get onLoad => _onLoadController.stream;
+
+  final _onUnloadController = StreamController<ThermionEntity>.broadcast();
+  @override
+  Stream<ThermionEntity> get onUnload => _onUnloadController.stream;
+
+  final _lights = <ThermionEntity>{};
+  final _entities = <ThermionEntity>{};
+
+  void registerLight(ThermionEntity entity) {
+    _lights.add(entity);
+    _onLoadController.sink.add(entity);
+    _onUpdatedController.add(true);
+  }
+
+  void unregisterLight(ThermionEntity entity) async {
+    var children = await controller.getChildEntities(entity, true);
+    if (selected == entity || children.contains(selected)) {
+      selected = null;
+      controller.gizmo?.detach();
+    }
+    _lights.remove(entity);
+    _onUnloadController.add(entity);
+    _onUpdatedController.add(true);
+  }
+
+  void unregisterEntity(ThermionEntity entity) async {
+    var children = await controller.getChildEntities(entity, true);
+    if (selected == entity || children.contains(selected)) {
+      selected = null;
+
+      controller.gizmo?.detach();
+    }
+    _entities.remove(entity);
+    _onUnloadController.add(entity);
+    _onUpdatedController.add(true);
+  }
+
+  void registerEntity(ThermionEntity entity) {
+    _entities.add(entity);
+    _onLoadController.sink.add(entity);
+    _onUpdatedController.add(true);
+  }
+
+  void clearLights() {
+    for (final light in _lights) {
+      if (selected == light) {
+        selected = null;
+        controller.gizmo?.detach();
+      }
+      _onUnloadController.add(light);
+    }
+
+    _lights.clear();
+    _onUpdatedController.add(true);
+  }
+
+  void clearEntities() {
+    for (final entity in _entities) {
+      if (selected == entity) {
+        selected = null;
+        controller.gizmo?.detach();
+      }
+      _onUnloadController.add(entity);
+    }
+    _entities.clear();
+    _onUpdatedController.add(true);
+  }
+
+  ///
+  /// Lists all entities currently loaded (not necessarily active in the scene).
+  ///
+  Iterable<ThermionEntity> listLights() {
+    return _lights;
+  }
+
+  @override
+  Iterable<ThermionEntity> listEntities() {
+    return _entities;
+  }
+
+  void registerSelected(ThermionEntity entity) {
+    selected = entity;
+    _onUpdatedController.add(true);
+  }
+
+  void unregisterSelected() {
+    selected = null;
+    _onUpdatedController.add(true);
+  }
+
+  @override
+  void select(ThermionEntity entity) {
+    selected = entity;
+    controller.gizmo?.attach(entity);
+    _onUpdatedController.add(true);
+  }
+
+  Future dispose() async {
+    await _onLoadController.close();
+    await _onUnloadController.close();
+    await _onUpdatedController.close();
+  }
+}

thermion_dart/lib/thermion_dart/thermion_viewer.dart

@@ -1,5 +1,6 @@
 import 'dart:math';
 
+import 'package:thermion_dart/thermion_dart/scene.dart';
 import 'package:vector_math/vector_math_64.dart';
 import 'dart:async';
 import 'package:animation_tools_dart/animation_tools_dart.dart';
@@ -279,11 +280,11 @@ abstract class ThermionViewer {
   /// [fadeInInSecs]/[fadeOutInSecs]/[maxDelta] are used to cross-fade between
   /// the current active glTF animation ("animation1") and the animation you
   /// set via this method ("animation2"). The bone orientations will be
-  /// linearly interpolated between animation1 and animation2; at time 0, 
-  /// the orientation will be 100% animation1, at time [fadeInInSecs], the 
+  /// linearly interpolated between animation1 and animation2; at time 0,
+  /// the orientation will be 100% animation1, at time [fadeInInSecs], the
   /// animation will be ((1 - maxDelta) * animation1) + (maxDelta * animation2).
-  /// This will be applied in reverse after [fadeOutInSecs]. 
-  /// 
+  /// This will be applied in reverse after [fadeOutInSecs].
+  ///
   ///
   Future addBoneAnimation(ThermionEntity entity, BoneAnimationData animation,
       {int skinIndex = 0,
@@ -701,51 +702,11 @@ abstract class ThermionViewer {
   ///
   ///
   AbstractGizmo? get gizmo;
-}
-
-///
-/// For now, this class just holds the entities that have been loaded (though not necessarily visible in the Filament Scene).
-///
-abstract class Scene {
-  ///
-  /// The last entity clicked/tapped in the viewport (internally, the result of calling pick);
-  ThermionEntity? selected;
 
   ///
-  /// A Stream updated whenever an entity is added/removed from the scene.
+  /// Register a callback to be invoked when this viewer is disposed.
   ///
-  Stream<bool> get onUpdated;
-
-  ///
-  /// A Stream containing every ThermionEntity added to the scene (i.e. via [loadGlb], [loadGltf] or [addLight]).
-  /// This is provided for convenience so you can set listeners in front-end widgets that can respond to entity loads without manually passing around the ThermionEntity returned from those methods.
-  ///
-  Stream<ThermionEntity> get onLoad;
-
-  ///
-  /// A Stream containing every ThermionEntity removed from the scene (i.e. via [removeEntity], [clearEntities], [removeLight] or [clearLights]).
-
-  Stream<ThermionEntity> get onUnload;
-
-  ///
-  /// Lists all light entities currently loaded (not necessarily active in the scene). Does not account for instances.
-  ///
-  Iterable<ThermionEntity> listLights();
-
-  ///
-  /// Lists all entities currently loaded (not necessarily active in the scene). Does not account for instances.
-  ///
-  Iterable<ThermionEntity> listEntities();
-
-  ///
-  /// Attach the gizmo to the specified entity.
-  ///
-  void select(ThermionEntity entity);
-
-  ///
-  ///
-  ///
-  void registerEntity(ThermionEntity entity);
+  void onDispose(Future Function() callback);
 }
 
 abstract class AbstractGizmo {

thermion_dart/lib/thermion_dart/thermion_viewer_ffi.dart

@@ -1,15 +1,15 @@
 import 'dart:async';
-import 'dart:io';
 import 'dart:math';
 import 'package:animation_tools_dart/animation_tools_dart.dart';
 import 'package:thermion_dart/thermion_dart/compatibility/compatibility.dart';
-
 import 'package:thermion_dart/thermion_dart/entities/gizmo.dart';
-
+import 'package:thermion_dart/thermion_dart/scene.dart';
 import 'package:vector_math/vector_math_64.dart';
 import 'thermion_viewer.dart';
-import 'scene.dart';
-import 'compatibility/compatibility.dart';
+import 'scene_impl.dart';
+import 'package:logging/logging.dart';
+
+typedef ThermionViewerImpl = ThermionViewerFFI;
 
 // ignore: constant_identifier_names
 const ThermionEntity _FILAMENT_ASSET_ERROR = 0;
@@ -17,10 +17,10 @@ const ThermionEntity _FILAMENT_ASSET_ERROR = 0;
 typedef RenderCallback = Pointer<NativeFunction<Void Function(Pointer<Void>)>>;
 
 class ThermionViewerFFI extends ThermionViewer {
-  final _compat = Compatibility();
+  final _logger = Logger("ThermionViewerFFI");
 
-  late SceneImpl _scene;
-  Scene get scene => _scene;
+  SceneImpl? _scene;
+  Scene get scene => _scene!;
 
   double _pixelRatio = 1.0;
 
@@ -72,7 +72,7 @@ class ThermionViewerFFI extends ThermionViewer {
           NativeCallable<Void Function(Int32 entityId, Int x, Int y)>.listener(
               _onPickResult);
     } catch (err) {
-      print(
+      _logger.severe(
           "Failed to set pick result callback. This is expected if running on web/wasm");
     }
     _initialize();
@@ -172,14 +172,39 @@ class ThermionViewerFFI extends ThermionViewer {
     set_frame_interval_ffi(_viewer!, interval);
   }
 
+  final _onDispose = <Future Function()>[];
+
   ///
   ///
   ///
   @override
   Future dispose() async {
+    if (_viewer == null) {
+      // we've already cleaned everything up, ignore the call to dispose
+      return;
+    }
+    await setRendering(false);
+    await clearEntities();
+    await clearLights();
+    await _scene!.dispose();
+    _scene = null;
     destroy_filament_viewer_ffi(_viewer!);
+
     _sceneManager = null;
     _viewer = null;
+    await _pickResultController.close();
+
+    for (final callback in _onDispose) {
+      await callback.call();
+    }
+    _onDispose.clear();
+  }
+
+  ///
+  ///
+  ///
+  void onDispose(Future Function() callback) {
+    _onDispose.add(callback);
   }
 
   ///
@@ -317,7 +342,7 @@ class ThermionViewerFFI extends ThermionViewer {
       throw Exception("Failed to add light to scene");
     }
 
-    _scene.registerLight(entity);
+    _scene!.registerLight(entity);
     return entity;
   }
 
@@ -326,7 +351,7 @@ class ThermionViewerFFI extends ThermionViewer {
   ///
   @override
   Future removeLight(ThermionEntity entity) async {
-    _scene.unregisterLight(entity);
+    _scene!.unregisterLight(entity);
     remove_light_ffi(_viewer!, entity);
   }
 
@@ -337,7 +362,7 @@ class ThermionViewerFFI extends ThermionViewer {
   Future clearLights() async {
     clear_lights_ffi(_viewer!);
 
-    _scene.clearLights();
+    _scene!.clearLights();
   }
 
   ///
@@ -393,7 +418,7 @@ class ThermionViewerFFI extends ThermionViewer {
     if (entity == _FILAMENT_ASSET_ERROR) {
       throw Exception("An error occurred loading the asset at $path");
     }
-    _scene.registerEntity(entity);
+    _scene!.registerEntity(entity);
 
     return entity;
   }
@@ -404,11 +429,6 @@ class ThermionViewerFFI extends ThermionViewer {
   @override
   Future<ThermionEntity> loadGltf(String path, String relativeResourcePath,
       {bool force = false}) async {
-    // if (Platform.isWindows && !force) {
-    //   throw Exception(
-    //       "loadGltf has a race condition on Windows which is likely to crash your program. If you really want to try, pass force=true to loadGltf");
-    // }
-
     final pathPtr = path.toNativeUtf8(allocator: allocator).cast<Char>();
     final relativeResourcePathPtr =
         relativeResourcePath.toNativeUtf8(allocator: allocator).cast<Char>();
@@ -419,7 +439,7 @@ class ThermionViewerFFI extends ThermionViewer {
     if (entity == _FILAMENT_ASSET_ERROR) {
       throw Exception("An error occurred loading the asset at $path");
     }
-    _scene.registerEntity(entity);
+    _scene!.registerEntity(entity);
 
     return entity;
   }
@@ -608,14 +628,12 @@ class ThermionViewerFFI extends ThermionViewer {
       var meshEntity = meshEntities[i];
 
       if (targetMeshNames?.contains(meshName) == false) {
-        print("Skipping $meshName, not contained in target");
+        _logger.info("Skipping $meshName, not contained in target");
         continue;
       }
 
       var meshMorphTargets = await getMorphTargetNames(entity, meshEntity);
 
-      print("Got mesh morph targets ${meshMorphTargets}");
-
       var intersection = animation.morphTargets
           .toSet()
           .intersection(meshMorphTargets.toSet())
@@ -676,8 +694,8 @@ class ThermionViewerFFI extends ThermionViewer {
   Future addBoneAnimation(ThermionEntity entity, BoneAnimationData animation,
       {int skinIndex = 0,
       double fadeOutInSecs = 0.0,
-      double fadeInInSecs = 0.0, 
-      double maxDelta=1.0}) async {
+      double fadeInInSecs = 0.0,
+      double maxDelta = 1.0}) async {
     if (animation.space != Space.Bone &&
         animation.space != Space.ParentWorldRotation) {
       throw UnimplementedError("TODO - support ${animation.space}");
@@ -710,7 +728,7 @@ class ThermionViewerFFI extends ThermionViewer {
       var boneName = animation.bones[i];
       var entityBoneIndex = boneNames.indexOf(boneName);
       if (entityBoneIndex == -1) {
-        print("Warning : bone $boneName not found, skipping");
+        _logger.warning("Bone $boneName not found, skipping");
         continue;
       }
       var boneEntity = bones[entityBoneIndex];
@@ -720,7 +738,7 @@ class ThermionViewerFFI extends ThermionViewer {
       var world = Matrix4.identity();
       // this odd use of ! is intentional, without it, the WASM optimizer gets in trouble
       var parentBoneEntity = (await getParent(boneEntity))!;
-      while(true) {
+      while (true) {
         if (!bones.contains(parentBoneEntity!)) {
           break;
         }
@@ -758,7 +776,7 @@ class ThermionViewerFFI extends ThermionViewer {
           numFrames,
           animation.frameLengthInMs,
           fadeOutInSecs,
-          fadeInInSecs, 
+          fadeInInSecs,
           maxDelta);
     }
     allocator.free(data);
@@ -894,7 +912,7 @@ class ThermionViewerFFI extends ThermionViewer {
   ///
   @override
   Future removeEntity(ThermionEntity entity) async {
-    _scene.unregisterEntity(entity);
+    _scene!.unregisterEntity(entity);
 
     await withVoidCallback(
         (callback) => remove_entity_ffi(_viewer!, entity, callback));
@@ -911,7 +929,7 @@ class ThermionViewerFFI extends ThermionViewer {
     await withVoidCallback((callback) {
       clear_entities_ffi(_viewer!, callback);
     });
-    _scene.clearEntities();
+    _scene!.clearEntities();
   }
 
   ///
@@ -984,7 +1002,6 @@ class ThermionViewerFFI extends ThermionViewer {
     var animations = await getAnimationNames(entity);
     var index = animations.indexOf(name);
     var duration = await getAnimationDuration(entity, index);
-    print("Duration for $name : $duration");
     await playAnimation(entity, index,
         loop: loop,
         reverse: reverse,
@@ -1296,7 +1313,7 @@ class ThermionViewerFFI extends ThermionViewer {
       x: (x / _pixelRatio).toDouble(),
       y: (viewportDimensions.$2 - y) / _pixelRatio
     ));
-    _scene.registerSelected(entityId);
+    _scene!.registerSelected(entityId);
   }
 
   late NativeCallable<Void Function(Int32 entityId, Int x, Int y)>
@@ -1307,7 +1324,7 @@ class ThermionViewerFFI extends ThermionViewer {
   ///
   @override
   void pick(int x, int y) async {
-    _scene.unregisterSelected();
+    _scene!.unregisterSelected();
 
     filament_pick(
         _viewer!,
@@ -1414,9 +1431,6 @@ class ThermionViewerFFI extends ThermionViewer {
       throw Exception("No viewer available");
     }
 
-    print(
-        "WARNING: getCameraProjectionMatrix and getCameraCullingProjectionMatrix are not reliable. Consider these broken");
-
     var arrayPtr = get_camera_projection_matrix(_viewer!);
     var doubleList = arrayPtr.asTypedList(16);
     var projectionMatrix = Matrix4.fromList(doubleList);
@@ -1432,7 +1446,7 @@ class ThermionViewerFFI extends ThermionViewer {
     if (_viewer == null) {
       throw Exception("No viewer available");
     }
-    print(
+    throw Exception(
         "WARNING: getCameraProjectionMatrix and getCameraCullingProjectionMatrix are not reliable. Consider these broken");
     var arrayPtr = get_camera_culling_projection_matrix(_viewer!);
     var doubleList = arrayPtr.asTypedList(16);
@@ -1451,7 +1465,6 @@ class ThermionViewerFFI extends ThermionViewer {
     }
     var arrayPtr = get_camera_frustum(_viewer!);
     var doubleList = arrayPtr.asTypedList(24);
-    print(doubleList);
 
     var frustum = Frustum();
     frustum.plane0.setFromComponents(
@@ -1624,7 +1637,7 @@ class ThermionViewerFFI extends ThermionViewer {
       throw Exception("Failed to create geometry");
     }
 
-    _scene.registerEntity(entity);
+    _scene!.registerEntity(entity);
 
     allocator.free(materialPathPtr);
     allocator.free(vertexPtr);

thermion_dart/lib/thermion_dart/thermion_viewer_stub.dart

@@ -0,0 +1,729 @@
+import 'dart:math';
+
+import 'package:thermion_dart/thermion_dart/scene.dart';
+import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
+import 'package:vector_math/vector_math_64.dart';
+import 'dart:async';
+import 'package:animation_tools_dart/animation_tools_dart.dart';
+
+typedef ThermionViewerImpl = ThermionViewerStub;
+
+class ThermionViewerStub extends ThermionViewer {
+  @override
+  Future addAnimationComponent(ThermionEntity entity) {
+    // TODO: implement addAnimationComponent
+    throw UnimplementedError();
+  }
+
+  @override
+  Future addBoneAnimation(ThermionEntity entity, BoneAnimationData animation,
+      {int skinIndex = 0,
+      double fadeInInSecs = 0.0,
+      double fadeOutInSecs = 0.0,
+      double maxDelta = 1.0}) {
+    // TODO: implement addBoneAnimation
+    throw UnimplementedError();
+  }
+
+  @override
+  Future addCollisionComponent(ThermionEntity entity,
+      {void Function(int entityId1, int entityId2)? callback,
+      bool affectsTransform = false}) {
+    // TODO: implement addCollisionComponent
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<ThermionEntity> addLight(
+      LightType type,
+      double colour,
+      double intensity,
+      double posX,
+      double posY,
+      double posZ,
+      double dirX,
+      double dirY,
+      double dirZ,
+      {double falloffRadius = 1.0,
+      double spotLightConeInner = pi / 8,
+      double spotLightConeOuter = pi / 4,
+      double sunAngularRadius = 0.545,
+      double sunHaloSize = 10.0,
+      double sunHaloFallof = 80.0,
+      bool castShadows = true}) {
+    // TODO: implement addLight
+    throw UnimplementedError();
+  }
+
+  @override
+  Future clearBackgroundImage() {
+    // TODO: implement clearBackgroundImage
+    throw UnimplementedError();
+  }
+
+  @override
+  Future clearEntities() {
+    // TODO: implement clearEntities
+    throw UnimplementedError();
+  }
+
+  @override
+  Future clearLights() {
+    // TODO: implement clearLights
+    throw UnimplementedError();
+  }
+
+  @override
+  Future createGeometry(List<double> vertices, List<int> indices,
+      {String? materialPath,
+      PrimitiveType primitiveType = PrimitiveType.TRIANGLES}) {
+    // TODO: implement createGeometry
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<ThermionEntity> createInstance(ThermionEntity entity) {
+    // TODO: implement createInstance
+    throw UnimplementedError();
+  }
+
+  @override
+  Future dispose() {
+    // TODO: implement dispose
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<double> getAnimationDuration(
+      ThermionEntity entity, int animationIndex) {
+    // TODO: implement getAnimationDuration
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<List<String>> getAnimationNames(ThermionEntity entity) {
+    // TODO: implement getAnimationNames
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<ThermionEntity> getBone(ThermionEntity parent, int boneIndex,
+      {int skinIndex = 0}) {
+    // TODO: implement getBone
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<List<String>> getBoneNames(ThermionEntity entity,
+      {int skinIndex = 0}) {
+    // TODO: implement getBoneNames
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<double> getCameraCullingFar() {
+    // TODO: implement getCameraCullingFar
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<double> getCameraCullingNear() {
+    // TODO: implement getCameraCullingNear
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Matrix4> getCameraCullingProjectionMatrix() {
+    // TODO: implement getCameraCullingProjectionMatrix
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Frustum> getCameraFrustum() {
+    // TODO: implement getCameraFrustum
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Matrix4> getCameraModelMatrix() {
+    // TODO: implement getCameraModelMatrix
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Vector3> getCameraPosition() {
+    // TODO: implement getCameraPosition
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Matrix4> getCameraProjectionMatrix() {
+    // TODO: implement getCameraProjectionMatrix
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Matrix3> getCameraRotation() {
+    // TODO: implement getCameraRotation
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Matrix4> getCameraViewMatrix() {
+    // TODO: implement getCameraViewMatrix
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<List<ThermionEntity>> getChildEntities(
+      ThermionEntity parent, bool renderableOnly) {
+    // TODO: implement getChildEntities
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<ThermionEntity> getChildEntity(
+      ThermionEntity parent, String childName) {
+    // TODO: implement getChildEntity
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<List<String>> getChildEntityNames(ThermionEntity entity,
+      {bool renderableOnly = true}) {
+    // TODO: implement getChildEntityNames
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<int> getInstanceCount(ThermionEntity entity) {
+    // TODO: implement getInstanceCount
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<List<ThermionEntity>> getInstances(ThermionEntity entity) {
+    // TODO: implement getInstances
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Matrix4> getInverseBindMatrix(ThermionEntity parent, int boneIndex,
+      {int skinIndex = 0}) {
+    // TODO: implement getInverseBindMatrix
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Matrix4> getLocalTransform(ThermionEntity entity) {
+    // TODO: implement getLocalTransform
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<ThermionEntity> getMainCamera() {
+    // TODO: implement getMainCamera
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<List<String>> getMorphTargetNames(
+      ThermionEntity entity, ThermionEntity childEntity) {
+    // TODO: implement getMorphTargetNames
+    throw UnimplementedError();
+  }
+
+  @override
+  String? getNameForEntity(ThermionEntity entity) {
+    // TODO: implement getNameForEntity
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<ThermionEntity?> getParent(ThermionEntity child) {
+    // TODO: implement getParent
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<Matrix4> getWorldTransform(ThermionEntity entity) {
+    // TODO: implement getWorldTransform
+    throw UnimplementedError();
+  }
+
+  @override
+  // TODO: implement gizmo
+  AbstractGizmo? get gizmo => throw UnimplementedError();
+
+  @override
+  Future hide(ThermionEntity entity, String? meshName) {
+    // TODO: implement hide
+    throw UnimplementedError();
+  }
+
+  @override
+  // TODO: implement initialized
+  Future<bool> get initialized => throw UnimplementedError();
+
+  @override
+  Future<ThermionEntity> loadGlb(String path, {int numInstances = 1}) {
+    // TODO: implement loadGlb
+    throw UnimplementedError();
+  }
+
+  @override
+  Future<ThermionEntity> loadGltf(String path, String relativeResourcePath,
+      {bool force = false}) {
+    // TODO: implement loadGltf
+    throw UnimplementedError();
+  }
+
+  @override
+  Future loadIbl(String lightingPath, {double intensity = 30000}) {
+    // TODO: implement loadIbl
+    throw UnimplementedError();
+  }
+
+  @override
+  Future loadSkybox(String skyboxPath) {
+    // TODO: implement loadSkybox
+    throw UnimplementedError();
+  }
+
+  @override
+  Future moveCameraToAsset(ThermionEntity entity) {
+    // TODO: implement moveCameraToAsset
+    throw UnimplementedError();
+  }
+
+  @override
+  void onDispose(Future Function() callback) {
+    // TODO: implement onDispose
+  }
+
+  @override
+  Future panEnd() {
+    // TODO: implement panEnd
+    throw UnimplementedError();
+  }
+
+  @override
+  Future panStart(double x, double y) {
+    // TODO: implement panStart
+    throw UnimplementedError();
+  }
+
+  @override
+  Future panUpdate(double x, double y) {
+    // TODO: implement panUpdate
+    throw UnimplementedError();
+  }
+
+  @override
+  void pick(int x, int y) {
+    // TODO: implement pick
+  }
+
+  @override
+  // TODO: implement pickResult
+  Stream<FilamentPickResult> get pickResult => throw UnimplementedError();
+
+  @override
+  Future playAnimation(ThermionEntity entity, int index,
+      {bool loop = false,
+      bool reverse = false,
+      bool replaceActive = true,
+      double crossfade = 0.0}) {
+    // TODO: implement playAnimation
+    throw UnimplementedError();
+  }
+
+  @override
+  Future playAnimationByName(ThermionEntity entity, String name,
+      {bool loop = false,
+      bool reverse = false,
+      bool replaceActive = true,
+      double crossfade = 0.0}) {
+    // TODO: implement playAnimationByName
+    throw UnimplementedError();
+  }
+
+  @override
+  Future queuePositionUpdate(
+      ThermionEntity entity, double x, double y, double z,
+      {bool relative = false}) {
+    // TODO: implement queuePositionUpdate
+    throw UnimplementedError();
+  }
+
+  @override
+  Future queueRotationUpdate(
+      ThermionEntity entity, double rads, double x, double y, double z,
+      {bool relative = false}) {
+    // TODO: implement queueRotationUpdate
+    throw UnimplementedError();
+  }
+
+  @override
+  Future queueRotationUpdateQuat(ThermionEntity entity, Quaternion quat,
+      {bool relative = false}) {
+    // TODO: implement queueRotationUpdateQuat
+    throw UnimplementedError();
+  }
+
+  @override
+  Future removeAnimationComponent(ThermionEntity entity) {
+    // TODO: implement removeAnimationComponent
+    throw UnimplementedError();
+  }
+
+  @override
+  Future removeCollisionComponent(ThermionEntity entity) {
+    // TODO: implement removeCollisionComponent
+    throw UnimplementedError();
+  }
+
+  @override
+  Future removeEntity(ThermionEntity entity) {
+    // TODO: implement removeEntity
+    throw UnimplementedError();
+  }
+
+  @override
+  Future removeIbl() {
+    // TODO: implement removeIbl
+    throw UnimplementedError();
+  }
+
+  @override
+  Future removeLight(ThermionEntity light) {
+    // TODO: implement removeLight
+    throw UnimplementedError();
+  }
+
+  @override
+  Future removeSkybox() {
+    // TODO: implement removeSkybox
+    throw UnimplementedError();
+  }
+
+  @override
+  Future render() {
+    // TODO: implement render
+    throw UnimplementedError();
+  }
+
+  @override
+  // TODO: implement rendering
+  bool get rendering => throw UnimplementedError();
+
+  @override
+  Future resetBones(ThermionEntity entity) {
+    // TODO: implement resetBones
+    throw UnimplementedError();
+  }
+
+  @override
+  Future reveal(ThermionEntity entity, String? meshName) {
+    // TODO: implement reveal
+    throw UnimplementedError();
+  }
+
+  @override
+  Future rotateEnd() {
+    // TODO: implement rotateEnd
+    throw UnimplementedError();
+  }
+
+  @override
+  Future rotateIbl(Matrix3 rotation) {
+    // TODO: implement rotateIbl
+    throw UnimplementedError();
+  }
+
+  @override
+  Future rotateStart(double x, double y) {
+    // TODO: implement rotateStart
+    throw UnimplementedError();
+  }
+
+  @override
+  Future rotateUpdate(double x, double y) {
+    // TODO: implement rotateUpdate
+    throw UnimplementedError();
+  }
+
+  @override
+  // TODO: implement scene
+  Scene get scene => throw UnimplementedError();
+
+  @override
+  Future setAnimationFrame(
+      ThermionEntity entity, int index, int animationFrame) {
+    // TODO: implement setAnimationFrame
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setAntiAliasing(bool msaa, bool fxaa, bool taa) {
+    // TODO: implement setAntiAliasing
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setBackgroundColor(double r, double g, double b, double alpha) {
+    // TODO: implement setBackgroundColor
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setBackgroundImage(String path, {bool fillHeight = false}) {
+    // TODO: implement setBackgroundImage
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setBackgroundImagePosition(double x, double y, {bool clamp = false}) {
+    // TODO: implement setBackgroundImagePosition
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setBloom(double bloom) {
+    // TODO: implement setBloom
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setBoneTransform(
+      ThermionEntity entity, int boneIndex, Matrix4 transform,
+      {int skinIndex = 0}) {
+    // TODO: implement setBoneTransform
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCamera(ThermionEntity entity, String? name) {
+    // TODO: implement setCamera
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraCulling(double near, double far) {
+    // TODO: implement setCameraCulling
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraExposure(
+      double aperture, double shutterSpeed, double sensitivity) {
+    // TODO: implement setCameraExposure
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraFocalLength(double focalLength) {
+    // TODO: implement setCameraFocalLength
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraFocusDistance(double focusDistance) {
+    // TODO: implement setCameraFocusDistance
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraFov(double degrees, double width, double height) {
+    // TODO: implement setCameraFov
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraManipulatorOptions(
+      {ManipulatorMode mode = ManipulatorMode.ORBIT,
+      double orbitSpeedX = 0.01,
+      double orbitSpeedY = 0.01,
+      double zoomSpeed = 0.01}) {
+    // TODO: implement setCameraManipulatorOptions
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraModelMatrix(List<double> matrix) {
+    // TODO: implement setCameraModelMatrix
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraPosition(double x, double y, double z) {
+    // TODO: implement setCameraPosition
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setCameraRotation(Quaternion quaternion) {
+    // TODO: implement setCameraRotation
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setFrameRate(int framerate) {
+    // TODO: implement setFrameRate
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setMainCamera() {
+    // TODO: implement setMainCamera
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setMaterialColor(ThermionEntity entity, String meshName,
+      int materialIndex, double r, double g, double b, double a) {
+    // TODO: implement setMaterialColor
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setMorphAnimationData(
+      ThermionEntity entity, MorphAnimationData animation,
+      {List<String>? targetMeshNames}) {
+    // TODO: implement setMorphAnimationData
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setMorphTargetWeights(ThermionEntity entity, List<double> weights) {
+    // TODO: implement setMorphTargetWeights
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setParent(ThermionEntity child, ThermionEntity parent) {
+    // TODO: implement setParent
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setPosition(ThermionEntity entity, double x, double y, double z) {
+    // TODO: implement setPosition
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setPostProcessing(bool enabled) {
+    // TODO: implement setPostProcessing
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setPriority(ThermionEntity entityId, int priority) {
+    // TODO: implement setPriority
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setRecording(bool recording) {
+    // TODO: implement setRecording
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setRecordingOutputDirectory(String outputDirectory) {
+    // TODO: implement setRecordingOutputDirectory
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setRendering(bool render) {
+    // TODO: implement setRendering
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setRotation(
+      ThermionEntity entity, double rads, double x, double y, double z) {
+    // TODO: implement setRotation
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setRotationQuat(ThermionEntity entity, Quaternion rotation) {
+    // TODO: implement setRotationQuat
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setScale(ThermionEntity entity, double scale) {
+    // TODO: implement setScale
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setToneMapping(ToneMapper mapper) {
+    // TODO: implement setToneMapping
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setTransform(ThermionEntity entity, Matrix4 transform) {
+    // TODO: implement setTransform
+    throw UnimplementedError();
+  }
+
+  @override
+  Future setViewFrustumCulling(bool enabled) {
+    // TODO: implement setViewFrustumCulling
+    throw UnimplementedError();
+  }
+
+  @override
+  Future stopAnimation(ThermionEntity entity, int animationIndex) {
+    // TODO: implement stopAnimation
+    throw UnimplementedError();
+  }
+
+  @override
+  Future stopAnimationByName(ThermionEntity entity, String name) {
+    // TODO: implement stopAnimationByName
+    throw UnimplementedError();
+  }
+
+  @override
+  Future testCollisions(ThermionEntity entity) {
+    // TODO: implement testCollisions
+    throw UnimplementedError();
+  }
+
+  @override
+  Future transformToUnitCube(ThermionEntity entity) {
+    // TODO: implement transformToUnitCube
+    throw UnimplementedError();
+  }
+
+  @override
+  Future updateBoneMatrices(ThermionEntity entity) {
+    // TODO: implement updateBoneMatrices
+    throw UnimplementedError();
+  }
+
+  @override
+  Future zoomBegin() {
+    // TODO: implement zoomBegin
+    throw UnimplementedError();
+  }
+
+  @override
+  Future zoomEnd() {
+    // TODO: implement zoomEnd
+    throw UnimplementedError();
+  }
+
+  @override
+  Future zoomUpdate(double x, double y, double z) {
+    // TODO: implement zoomUpdate
+    throw UnimplementedError();
+  }
+}

thermion_dart/native/include/FilamentViewer.hpp

@@ -211,6 +211,7 @@ namespace thermion_filament
         uint32_t _imageWidth = 0;
         mat4f _imageScale;
         Texture *_imageTexture = nullptr;
+        Texture *_dummyImageTexture = nullptr;
         utils::Entity _imageEntity;
         VertexBuffer *_imageVb = nullptr;
         IndexBuffer *_imageIb = nullptr;

thermion_dart/native/include/ResourceBuffer.hpp

@@ -3,7 +3,6 @@
 
 #include "ResourceBuffer.h"
 
-#if defined(__cplusplus)
 #ifndef __EMSCRIPTEN__
 #include <thread>
 using namespace std::chrono_literals;
@@ -15,6 +14,15 @@ namespace thermion_filament
   struct ResourceLoaderWrapperImpl : public ResourceLoaderWrapper
   {
 
+    ResourceLoaderWrapperImpl(ResourceLoaderWrapper* wrapper) {
+      loadFromOwner = wrapper->loadFromOwner;
+      freeFromOwner = wrapper->freeFromOwner;
+      loadResource = wrapper->loadResource;
+      freeResource = wrapper->freeResource;
+      owner = wrapper->owner;
+      loadToOut = wrapper->loadToOut;
+    }
+
     ResourceLoaderWrapperImpl(LoadFilamentResource loader, FreeFilamentResource freeResource)
     {
       loadFromOwner = nullptr;
@@ -73,4 +81,3 @@ namespace thermion_filament
 }
 #endif
 
-#endif

thermion_dart/native/include/SceneManager.hpp

@@ -179,7 +179,6 @@ namespace thermion_filament
         gltfio::TextureProvider *_stbDecoder = nullptr;
         gltfio::TextureProvider *_ktxDecoder = nullptr;
         std::mutex _mutex;
-        Material *_gizmoMaterial;
 
         utils::NameComponentManager *_ncm;
 
@@ -201,8 +200,9 @@ namespace thermion_filament
             const char *entityName);
 
         EntityId addGizmo();
-        utils::Entity _gizmoX;
-        utils::Entity _gizmoY;
-        utils::Entity _gizmoZ;
+        utils::Entity _gizmo[3];
+        Material* _gizmoMaterial;
+        MaterialInstance* _gizmoMaterialInstances[3];
+
     };
 }

thermion_dart/native/src/FilamentViewer.cpp

@@ -126,11 +126,10 @@ namespace thermion_filament
 
   static const uint16_t sFullScreenTriangleIndices[3] = {0, 1, 2};
 
-  FilamentViewer::FilamentViewer(const void *sharedContext, const ResourceLoaderWrapperImpl *const ResourceLoaderWrapperImpl, void *const platform, const char *uberArchivePath)
-      : _resourceLoaderWrapper(ResourceLoaderWrapperImpl)
+  FilamentViewer::FilamentViewer(const void *sharedContext, const ResourceLoaderWrapperImpl *const resourceLoader, void *const platform, const char *uberArchivePath)
+      : _resourceLoaderWrapper(resourceLoader)
   {
     _context = (void*) sharedContext;
-
     ASSERT_POSTCONDITION(_resourceLoaderWrapper != nullptr, "Resource loader must be non-null");
 
 #if TARGET_OS_IPHONE
@@ -215,7 +214,7 @@ namespace thermion_filament
 
     Log("Created scene maager");
 
-    _imageTexture = Texture::Builder()
+    _dummyImageTexture = Texture::Builder()
                         .width(1)
                         .height(1)
                         .levels(0x01)
@@ -230,7 +229,7 @@ namespace thermion_filament
               .build(*_engine);
       _imageMaterial->setDefaultParameter("showImage", 0);
       _imageMaterial->setDefaultParameter("backgroundColor", RgbaType::sRGB, float4(1.0f, 1.0f, 1.0f, 0.0f));
-      _imageMaterial->setDefaultParameter("image", _imageTexture, _imageSampler);
+      _imageMaterial->setDefaultParameter("image", _dummyImageTexture, _imageSampler);
     }
     catch (...)
     {
@@ -269,7 +268,6 @@ namespace thermion_filament
         .culling(false)
         .build(*_engine, _imageEntity);
     _scene->addEntity(_imageEntity);
-    Log("Added imageEntity %d", _imageEntity);
   }
 
   void FilamentViewer::setAntiAliasing(bool msaa, bool fxaa, bool taa)
@@ -444,7 +442,8 @@ namespace thermion_filament
         new ktxreader::Ktx1Bundle(static_cast<const uint8_t *>(rb.data),
                                   static_cast<uint32_t>(rb.size));
 
-    // because the ResourceBuffer will go out of scope before the texture callback is invoked, we need to make a copy to the heap
+    // the ResourceBuffer will go out of scope before the texture callback is invoked
+    // make a copy to the heap
     ResourceBuffer *rbCopy = new ResourceBuffer(rb);
 
     std::vector<void *> *callbackData = new std::vector<void *>{(void *)_resourceLoaderWrapper, rbCopy};
@@ -550,6 +549,7 @@ namespace thermion_filament
 
   void FilamentViewer::clearBackgroundImage()
   {
+    _imageMaterial->setDefaultParameter("image", _dummyImageTexture, _imageSampler);
     _imageMaterial->setDefaultParameter("showImage", 0);
     if (_imageTexture)
     {
@@ -680,22 +680,21 @@ namespace thermion_filament
 
   FilamentViewer::~FilamentViewer()
   {
-    clearEntities();
+    clearLights();
+    destroySwapChain();
+    _engine->destroy(_imageEntity);
+    _engine->destroy(_imageTexture);
+    _engine->destroy(_imageVb);
+    _engine->destroy(_imageIb);
+    _engine->destroy(_imageMaterial);
     delete _sceneManager;
-
-    for (auto it : _lights)
-    {
-      _engine->destroy(it);
-    }
-
     _engine->destroyCameraComponent(_mainCamera->getEntity());
     _mainCamera = nullptr;
     _engine->destroy(_view);
     _engine->destroy(_scene);
     _engine->destroy(_renderer);
-    _engine->destroy(_swapChain);
-
-    Engine::destroy(&_engine); // clears engine*
+    Engine::destroy(&_engine); 
+    delete _resourceLoaderWrapper;
   }
 
   Renderer *FilamentViewer::getRenderer() { return _renderer; }
@@ -930,7 +929,6 @@ namespace thermion_filament
     }
 
     Log("Loading skybox from path %s", skyboxPath);
-
     ResourceBuffer skyboxBuffer = _resourceLoaderWrapper->load(skyboxPath);
 
     // because this will go out of scope before the texture callback is invoked, we need to make a copy of the variable itself (not its contents)

thermion_dart/native/src/SceneManager.cpp

@@ -93,10 +93,28 @@ namespace thermion_filament
 
     SceneManager::~SceneManager()
     {
+        
+        destroyAll();
+        
+        for(int i =0; i < 3; i++) {
+            _engine->destroy(_gizmo[i]);
+            _engine->destroy(_gizmoMaterialInstances[i]);
+        }
+        
+        _engine->destroy(_gizmoMaterial);
         _gltfResourceLoader->asyncCancelLoad();
         _ubershaderProvider->destroyMaterials();
-        destroyAll();
+        
+        delete _animationComponentManager;
+        delete _collisionComponentManager;
+        delete _ncm;
+
+        delete _gltfResourceLoader;
+        delete _stbDecoder;
+        delete _ktxDecoder;
+        delete _ubershaderProvider;
         AssetLoader::destroy(&_assetLoader);
+        
     }
 
     int SceneManager::getInstanceCount(EntityId entityId)
@@ -2045,72 +2063,57 @@ namespace thermion_filament
 
         auto &entityManager = EntityManager::get();
 
-        _gizmoY = entityManager.create();
-        auto materialY = _gizmoMaterial->createInstance();
-        materialY->setParameter("color", math::float3{1.0f, 0.0f, 0.0f});
+        _gizmo[1] = entityManager.create();
+        _gizmoMaterialInstances[1] = _gizmoMaterial->createInstance();
+        _gizmoMaterialInstances[1]->setParameter("color", math::float3{1.0f, 0.0f, 0.0f});
         RenderableManager::Builder(1)
             .boundingBox({{}, {1.0f, 1.0f, 1.0f}})
-            .material(0, materialY)
+            .material(0, _gizmoMaterialInstances[1])
             .geometry(0, RenderableManager::PrimitiveType::TRIANGLES, vb,
                       ib, 0, indexCount)
             .culling(false)
-            .build(*_engine, _gizmoY);
+            .build(*_engine, _gizmo[1]);
 
-        _gizmoX = entityManager.create();
-        auto materialX = _gizmoMaterial->createInstance();
-        materialX->setParameter("color", math::float3{0.0f, 1.0f, 0.0f});
+        _gizmo[0] = entityManager.create();
+        _gizmoMaterialInstances[0] = _gizmoMaterial->createInstance();
+        _gizmoMaterialInstances[0]->setParameter("color", math::float3{0.0f, 1.0f, 0.0f});
         auto xTransform = math::mat4f::translation(math::float3{0.0f, 0.05f, -0.05f}) * math::mat4f::rotation(-math::F_PI_2, math::float3{0, 0, 1});
         auto *instanceBufferX = InstanceBuffer::Builder(1).localTransforms(&xTransform).build(*_engine);
         RenderableManager::Builder(1)
             .boundingBox({{}, {1.0f, 1.0f, 1.0f}})
             .instances(1, instanceBufferX)
-            .material(0, materialX)
+            .material(0, _gizmoMaterialInstances[0])
             .geometry(0, RenderableManager::PrimitiveType::TRIANGLES, vb,
                       ib, 0, indexCount)
             .culling(false)
-            .build(*_engine, _gizmoX);
+            .build(*_engine, _gizmo[0]);
 
-        _gizmoZ = entityManager.create();
-        auto materialZ = _gizmoMaterial->createInstance();
-        materialZ->setParameter("color", math::float3{0.0f, 0.0f, 1.0f});
+        _gizmo[2] = entityManager.create();
+        _gizmoMaterialInstances[2] = _gizmoMaterial->createInstance();
+        _gizmoMaterialInstances[2]->setParameter("color", math::float3{0.0f, 0.0f, 1.0f});
         auto zTransform = math::mat4f::translation(math::float3{0.0f, 0.05f, -0.05f}) * math::mat4f::rotation(3 * math::F_PI_2, math::float3{1, 0, 0});
         auto *instanceBufferZ = InstanceBuffer::Builder(1).localTransforms(&zTransform).build(*_engine);
         RenderableManager::Builder(1)
             .boundingBox({{}, {1.0f, 1.0f, 1.0f}})
             .instances(1, instanceBufferZ)
-            .material(0, materialZ)
+            .material(0, _gizmoMaterialInstances[2])
             .geometry(0, RenderableManager::PrimitiveType::TRIANGLES, vb,
                       ib, 0, indexCount)
             .culling(false)
-            .build(*_engine, _gizmoZ);
-
-        // auto localTransforms = math::mat4f[3] {
-        //     math::mat4f(),
-        //     math::mat4f::translation(math::float3 { 0.0f, 0.05f, -0.05f}) * math::mat4f::rotation(3 * math::F_PI_2, math::float3 { 1, 0, 0 }) ,
-        //     math::mat4f::translation(math::float3 { 0.0f, 0.05f, -0.05f}) * math::mat4f::rotation(math::F_PI_2, math::float3 { 0, 0, 1 })
-        // };
-
-        // RenderableManager::Builder(1)
-        //     .boundingBox({{}, {1.0f, 1.0f, 1.0f}})
-        //     .instances(3, instanceBuffer)
-        //     .material(0, _gizmoMaterial->getDefaultInstance())
-        //     .geometry(0, RenderableManager::PrimitiveType::TRIANGLES, vb,
-        //             ib, 0, indexCount)
-        //     .culling(false)
-        //     .build(*_engine, _gizmo);
+            .build(*_engine, _gizmo[2]);
 
         auto &rm = _engine->getRenderableManager();
-        rm.setPriority(rm.getInstance(_gizmoX), 7);
-        rm.setPriority(rm.getInstance(_gizmoY), 7);
-        rm.setPriority(rm.getInstance(_gizmoZ), 7);
-        return Entity::smuggle(_gizmoX);
+        rm.setPriority(rm.getInstance(_gizmo[0]), 7);
+        rm.setPriority(rm.getInstance(_gizmo[1]), 7);
+        rm.setPriority(rm.getInstance(_gizmo[2]), 7);
+        return Entity::smuggle(_gizmo[0]);
     }
 
     void SceneManager::getGizmo(EntityId *out)
     {
-        out[0] = Entity::smuggle(_gizmoX);
-        out[1] = Entity::smuggle(_gizmoY);
-        out[2] = Entity::smuggle(_gizmoZ);
+        out[0] = Entity::smuggle(_gizmo[0]);
+        out[1] = Entity::smuggle(_gizmo[1]);
+        out[2] = Entity::smuggle(_gizmo[2]);
     }
 
 } // namespace thermion_filament

thermion_dart/native/src/ThermionDartApi.cpp

@@ -27,7 +27,8 @@ extern "C"
 
     EMSCRIPTEN_KEEPALIVE const void *create_filament_viewer(const void *context, const void *const loader, void *const platform, const char *uberArchivePath)
     {
-        auto viewer = (const void *)new FilamentViewer(context, (const ResourceLoaderWrapperImpl *const)loader, platform, uberArchivePath);
+        const auto * loaderImpl = new ResourceLoaderWrapperImpl((ResourceLoaderWrapper*)loader);
+        auto viewer = (const void *)new FilamentViewer(context, loaderImpl, platform, uberArchivePath);
         return viewer;
     }
 

thermion_dart/native/src/ThermionDartFFIApi.cpp

@@ -15,7 +15,6 @@ extern "C"
 }
 #include <pthread.h>
 
-
 #endif
 
 #include "ThermionDartFFIApi.h"
@@ -52,6 +51,7 @@ public:
   {
     _stop = true;
     pthread_join(t, NULL);
+    Log("Render loop killed");
   }
 
   static void mainLoop(void* arg) {
@@ -103,48 +103,47 @@ public:
     }
   }
 
-  void createViewer(void *const context, void *const platform,
+  void createViewer(void *const context, 
+                    void *const platform,
                     const char *uberArchivePath,
-                    const ResourceLoaderWrapperImpl *const loader,
+                    const ResourceLoaderWrapper *const loader,
                     void (*renderCallback)(void *),
                     void *const owner,
                     void (*callback)(void *const))
   {
     _renderCallback = renderCallback;
     _renderCallbackOwner = owner;
-    std::packaged_task<FilamentViewer *()> lambda([=]() mutable
+    std::packaged_task<void()> lambda([=]() mutable
                                                   {
-        FilamentViewer* viewer = nullptr;
 #ifdef __EMSCRIPTEN__     
         _context = thermion_dart_web_create_gl_context();
 
         auto success = emscripten_webgl_make_context_current((EMSCRIPTEN_WEBGL_CONTEXT_HANDLE)_context);
         if(success != EMSCRIPTEN_RESULT_SUCCESS) {
           std::cout << "Failed to make context current." << std::endl;
-          return viewer;
+          return;
         }
         glClearColor(0.0, 0.5, 0.5, 1.0);
         glClear(GL_COLOR_BUFFER_BIT);
         // emscripten_webgl_commit_frame();
 
-        viewer = (FilamentViewer*) create_filament_viewer((void* const) _context, loader, platform, uberArchivePath);
+        _viewer = (FilamentViewer*) create_filament_viewer((void* const) _context, loader, platform, uberArchivePath);
         MAIN_THREAD_EM_ASM({
           moduleArg.dartFilamentResolveCallback($0, $1);
-        }, callback, viewer);
+        }, callback, _viewer);
 #else
-        viewer = (FilamentViewer*)create_filament_viewer(context, loader, platform, uberArchivePath);
-        callback(viewer);
+        _viewer = (FilamentViewer*)create_filament_viewer(context, loader, platform, uberArchivePath);
+        callback(_viewer);
 #endif
-      _viewer = viewer;
-      return viewer; });
+    });
     auto fut = add_task(lambda);
   }
 
   void destroyViewer(FilamentViewer* viewer) 
   {
-    std::packaged_task<void()> lambda([=]() mutable
-                                      {
+    std::packaged_task<void()> lambda([=]() mutable {
       _rendering = false;
+      _viewer = nullptr;
       destroy_filament_viewer(viewer);
     });
     auto fut = add_task(lambda);
@@ -237,13 +236,15 @@ extern "C"
     {
       _rl = new RenderLoop();
     }
-    _rl->createViewer(context, platform, uberArchivePath, (const ResourceLoaderWrapperImpl *const)loader,
+    _rl->createViewer(context, platform, uberArchivePath, (const ResourceLoaderWrapper *const)loader,
                       renderCallback, renderCallbackOwner, callback);
   }
 
   EMSCRIPTEN_KEEPALIVE void destroy_filament_viewer_ffi(void *const viewer)
   {
     _rl->destroyViewer((FilamentViewer*)viewer);
+    delete _rl;
+    _rl = nullptr;
   }
 
   EMSCRIPTEN_KEEPALIVE void create_swap_chain_ffi(void *const viewer,

thermion_dart/native/web/CMakeLists.txt

@@ -49,7 +49,7 @@ set(CMAKE_RUNTIME_OUTPUT_DIRECTORY build/out)
 
 add_executable(${MODULE_NAME} 
   "${CMAKE_CURRENT_SOURCE_DIR}/../src/SceneManager.cpp"
-  "${CMAKE_CURRENT_SOURCE_DIR}/../src/ThermionViewerFFI.cpp"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../src/FilamentViewer.cpp"
   "${CMAKE_CURRENT_SOURCE_DIR}/../src/ThermionDartApi.cpp"
   "${CMAKE_CURRENT_SOURCE_DIR}/../src/ThermionDartFFIApi.cpp"
   "${CMAKE_CURRENT_SOURCE_DIR}/../src/StreamBufferAdapter.cpp"
@@ -221,10 +221,10 @@ target_link_libraries(${MODULE_NAME}
  tinyexr
 )
 
-add_custom_command(TARGET ${MODULE_NAME} POST_BUILD
-    COMMAND dart --enable-experiment=native-assets run ffigen --config ffigen/web.yaml WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../../
-    COMMAND ${CMAKE_COMMAND} -DINPUTFILE=${CMAKE_CURRENT_SOURCE_DIR}/../../lib/thermion_dart/compatibility/web/thermion_dart.g.dart -DOUTPUTFILE=${CMAKE_CURRENT_SOURCE_DIR}/../../lib/thermion_dart/compatibility/web/thermion_dart.g.dart "-DTO_REPLACE=symbol: '" "-DREPLACEMENT=symbol: '_" -P ${CMAKE_CURRENT_SOURCE_DIR}/replace_in_file.cmake 
-    # COMMAND ${CMAKE_COMMAND} -DINPUTFILE=${CMAKE_CURRENT_SOURCE_DIR}/build/build/out/thermion_dart.js -DOUTPUTFILE=${CMAKE_CURRENT_SOURCE_DIR}/build/build/out/thermion_dart.js "-DTO_REPLACE=var moduleRtn" "-DREPLACEMENT=var moduleRtn\;GLctx=moduleArg.ctx" -P ${CMAKE_CURRENT_SOURCE_DIR}/replace_in_file.cmake 
-    VERBATIM
-)
+# add_custom_command(TARGET ${MODULE_NAME} POST_BUILD
+#     COMMAND dart --enable-experiment=native-assets run ffigen --config ffigen/web.yaml WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../../
+#     COMMAND ${CMAKE_COMMAND} -DINPUTFILE=${CMAKE_CURRENT_SOURCE_DIR}/../../lib/thermion_dart/compatibility/web/thermion_dart.g.dart -DOUTPUTFILE=${CMAKE_CURRENT_SOURCE_DIR}/../../lib/thermion_dart/compatibility/web/thermion_dart.g.dart "-DTO_REPLACE=symbol: '" "-DREPLACEMENT=symbol: '_" -P ${CMAKE_CURRENT_SOURCE_DIR}/replace_in_file.cmake 
+#     # COMMAND ${CMAKE_COMMAND} -DINPUTFILE=${CMAKE_CURRENT_SOURCE_DIR}/build/build/out/thermion_dart.js -DOUTPUTFILE=${CMAKE_CURRENT_SOURCE_DIR}/build/build/out/thermion_dart.js "-DTO_REPLACE=var moduleRtn" "-DREPLACEMENT=var moduleRtn\;GLctx=moduleArg.ctx" -P ${CMAKE_CURRENT_SOURCE_DIR}/replace_in_file.cmake 
+#     VERBATIM
+# )
 

thermion_dart/native/web/src/cpp/ThermionDartWebApi.cpp

@@ -125,7 +125,7 @@ extern "C"
     attr.stencil = EM_FALSE;
     attr.antialias = EM_FALSE;
     attr.explicitSwapControl = EM_FALSE;
-    attr.preserveDrawingBuffer = EM_FALSE;
+    attr.preserveDrawingBuffer = EM_TRUE;
     attr.proxyContextToMainThread = EMSCRIPTEN_WEBGL_CONTEXT_PROXY_DISALLOW;
     attr.enableExtensionsByDefault = EM_TRUE;
     attr.renderViaOffscreenBackBuffer = EM_FALSE;

thermion_dart/pubspec.yaml

@@ -1,6 +1,6 @@
 name: thermion_dart
 description: 3D rendering toolkit for Dart.
-version: 0.0.4
+version: 0.1.0+3
 homepage: https://docs.page/nmfisher/thermion
 repository: https://github.com/nmfisher/thermion
 
@@ -15,6 +15,7 @@ dependencies:
   native_toolchain_c: ^0.4.2
   archive: ^3.6.1
   web: ^0.5.1
+  logging: ^1.2.0
 
 dev_dependencies:
   ffigen: ^11.0.0

thermion_dart/test/integration_test.dart

@@ -1,9 +1,7 @@
-import 'dart:ffi';
 import 'dart:io';
 import 'package:thermion_dart/thermion_dart/swift/swift_bindings.g.dart';
+import 'package:thermion_dart/thermion_dart/thermion_viewer_ffi.dart';
 import 'package:thermion_dart/thermion_dart/utils/dart_resources.dart';
-import 'package:ffi/ffi.dart';
-import 'package:thermion_dart/thermion_dart.dart';
 import 'package:thermion_dart/thermion_dart/compatibility/compatibility.dart';
 import 'package:test/test.dart';
 import 'package:animation_tools_dart/animation_tools_dart.dart';

thermion_flutter/thermion_dart

@@ -1 +0,0 @@
-../thermion_dart

thermion_flutter/thermion_flutter/CHANGELOG.md

@@ -0,0 +1,26 @@
+## 0.1.1+4
+
+ - Update a dependency to the latest release.
+
+## 0.1.1+3
+
+ - Update a dependency to the latest release.
+
+## 0.1.1+2
+
+ - **FIX**: update Flutter example project to use new API.
+ - **FIX**: add logging dependency to thermion_flutter.
+
+## 0.1.1+1
+
+ - **REFACTOR**: export ThermionViewerWasm for web and hide FFI/WASM version.
+ - **FIX**: catch exception if gizmo unavailable in ThermionGestureDestectorDesktop.
+
+## 0.1.0
+* [ThermionFlutterPlugin] is now static and [dispose] has been removed. Call [createViewer] to obtain an instance of [ThermionViewer]. If you need to release all resources, call [dispose] on [ThermionViewer] 
+* Fixed memory leaks
+
+## 0.0.4
+* First release of Dart-only package
+
+

thermion_flutter/thermion_flutter/android/src/main/kotlin/app/polyvox/filament/ThermionFlutterPlugin.kt

@@ -55,7 +55,7 @@ class RenderCallbackImpl(plugin:ThermionFlutterPlugin) : RenderCallback {
 class ThermionFlutterPlugin: FlutterPlugin, MethodCallHandler, ActivityAware, LoadFilamentResourceFromOwner, FreeFilamentResourceFromOwner {
 
   companion object {
-      const val CHANNEL_NAME = "app.polyvox.filament/event"
+      const val CHANNEL_NAME = "dev.thermion.flutter/event"
       const val TAG = "FilamentPlugin"
   }
 

thermion_flutter/thermion_flutter/ios/Classes/ResourceBuffer.c

@@ -1,8 +1,11 @@
-#include "ResourceBuffer.hpp"
+#include "ResourceBuffer.h"
 
-ResourceLoaderWrapper *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner)
+void *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner)
 {
     ResourceLoaderWrapper *rlw = (ResourceLoaderWrapper *)malloc(sizeof(ResourceLoaderWrapper));
+    rlw->loadResource = NULL;
+    rlw->freeResource = NULL;
+    rlw->loadToOut = NULL;
     rlw->loadFromOwner = loadFn;
     rlw->freeFromOwner = freeFn;
     rlw->owner = owner;

thermion_flutter/thermion_flutter/ios/Classes/SwiftThermionFlutterPlugin.swift

@@ -127,7 +127,7 @@ public class SwiftThermionFlutterPlugin: NSObject, FlutterPlugin {
     public static func register(with registrar: FlutterPluginRegistrar) {
         let _messenger = registrar.messenger();
         messenger = _messenger;
-        let channel = FlutterMethodChannel(name: "app.polyvox.filament/event", binaryMessenger: _messenger)
+        let channel = FlutterMethodChannel(name: "dev.thermion.flutter/event", binaryMessenger: _messenger)
         let instance = SwiftThermionFlutterPlugin(textureRegistry: registrar.textures(), registrar:registrar)
         registrar.addMethodCallDelegate(instance, channel: channel)
     }

thermion_flutter/thermion_flutter/ios/include/ResourceBuffer.h

@@ -0,0 +1,44 @@
+#ifndef RESOURCE_BUFFER_H
+#define RESOURCE_BUFFER_H
+
+#include <stdint.h>
+#include <stdlib.h>
+
+//
+// A ResourceBuffer is a unified interface for working with
+// binary assets across various platforms.
+// This is simply:
+// 1) a pointer to some data
+// 2) the length of the data
+// 3) an ID that can be passed back to the native platform to release the underlying asset when needed.
+//
+typedef struct ResourceBuffer
+{
+  const void *const data;
+  const int32_t size;
+  const int32_t id;
+
+#if defined(__cplusplus)
+  ResourceBuffer(void *const data, int32_t size, int32_t id) : data(data), size(size), id(id) {}
+#endif
+} ResourceBuffer;
+
+typedef void (*LoadFilamentResourceIntoOutPointer)(const char *uri, ResourceBuffer *out);
+typedef ResourceBuffer (*LoadFilamentResource)(const char *uri);
+typedef ResourceBuffer (*LoadFilamentResourceFromOwner)(const char *const, void *const owner);
+typedef void (*FreeFilamentResource)(ResourceBuffer);
+typedef void (*FreeFilamentResourceFromOwner)(ResourceBuffer, void *const owner);
+
+typedef struct ResourceLoaderWrapper
+{
+  LoadFilamentResource loadResource;
+  FreeFilamentResource freeResource;
+  LoadFilamentResourceFromOwner loadFromOwner;
+  FreeFilamentResourceFromOwner freeFromOwner;
+  void *owner;
+  LoadFilamentResourceIntoOutPointer loadToOut;
+} ResourceLoaderWrapper;
+
+void *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner);
+
+#endif

thermion_flutter/thermion_flutter/ios/include/ResourceBuffer.hpp

@@ -1,91 +0,0 @@
-#ifndef RESOURCE_BUFFER_H
-#define RESOURCE_BUFFER_H
-
-#include <stdint.h>
-#include <stdlib.h>
-
-//
-// A ResourceBuffer is a unified interface for working with
-// binary assets across various platforms.
-// This is simply:
-// 1) a pointer to some data
-// 2) the length of the data
-// 3) an ID that can be passed back to the native platform to release the underlying asset when needed.
-//
-struct ResourceBuffer
-{
-  const void *const data;
-  const int32_t size;
-  const int32_t id;
-};
-
-typedef struct ResourceBuffer ResourceBuffer;
-typedef ResourceBuffer (*LoadFilamentResource)(const char *uri);
-typedef ResourceBuffer (*LoadFilamentResourceFromOwner)(const char *const, void *const owner);
-typedef void (*FreeFilamentResource)(ResourceBuffer);
-typedef void (*FreeFilamentResourceFromOwner)(ResourceBuffer, void *const owner);
-
-struct ResourceLoaderWrapper
-{
-  LoadFilamentResource loadResource;
-  FreeFilamentResource freeResource;
-  LoadFilamentResourceFromOwner loadFromOwner;
-  FreeFilamentResourceFromOwner freeFromOwner;
-  void *owner;
-};
-typedef struct ResourceLoaderWrapper ResourceLoaderWrapper;
-
-
-#if defined(__cplusplus)
-
-namespace thermion_filament {
-
-struct ResourceLoaderWrapperImpl : public ResourceLoaderWrapper
-{
-
-  ResourceLoaderWrapperImpl(LoadFilamentResource loader, FreeFilamentResource freeResource)
-  {
-    loadFromOwner = nullptr;
-    freeFromOwner = nullptr;
-    loadResource = loader;
-    freeResource = freeResource;
-    owner = nullptr;
-  }
-
-  ResourceLoaderWrapperImpl(LoadFilamentResourceFromOwner loader, FreeFilamentResourceFromOwner freeResource, void * owner)
-  {
-    loadResource = nullptr;
-    freeResource = nullptr;
-    loadFromOwner = loader;
-    freeFromOwner = freeResource;
-    owner = owner;
-  }
-
-  ResourceBuffer load(const char *uri) const
-  {
-    if (loadFromOwner)
-    {
-      auto rb = loadFromOwner(uri, owner);
-      return rb;
-    }
-    auto rb = loadResource(uri);
-    return rb;
-  }
-
-  void free(ResourceBuffer rb) const
-  {
-    if (freeFromOwner)
-    {
-      freeFromOwner(rb, owner);
-    }
-    else
-    {
-      freeResource(rb);
-    }
-  }
-};
-
-}
-#endif
-
-#endif

thermion_flutter/thermion_flutter/ios/include/SwiftThermionFlutterPlugin-Bridging-Header.h

@@ -3,9 +3,9 @@
 
 #include <stdint.h>
 
-#include "ResourceBuffer.hpp"
+#include "ResourceBuffer.h"
 
-ResourceLoaderWrapper *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner);
+void *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner);
 
 // ResourceLoaderWrapper *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner)
 // {

thermion_flutter/thermion_flutter/ios/thermion_flutter.podspec

@@ -13,8 +13,8 @@ A new flutter plugin project.
   s.license          = { :file => '../LICENSE' }
   s.author           = { 'Your Company' => 'email@example.com' }
   s.source           = { :path => '.' }
-  s.source_files = 'Classes/*', 'include/SwiftThermionFlutterPlugin-Bridging-Header.h','include/ResourceBuffer.hpp', 'src/ResourceBuffer.c'
-  s.public_header_files = 'include/SwiftThermionFlutterPlugin-Bridging-Header.h', 'include/ResourceBuffer.hpp'
+  s.source_files = 'Classes/*', 'include/SwiftThermionFlutterPlugin-Bridging-Header.h','include/ResourceBuffer.h', 'src/ResourceBuffer.c'
+  s.public_header_files = 'include/SwiftThermionFlutterPlugin-Bridging-Header.h', 'include/ResourceBuffer.h'
   s.dependency 'Flutter' 
   s.platform = :ios, '13.0'
   s.static_framework = true

thermion_flutter/thermion_flutter/lib/thermion/thermion_flutter_plugin.dart

@@ -1,103 +1,100 @@
 import 'dart:async';
-import 'dart:ui';
 import 'package:thermion_dart/thermion_dart.dart';
 import 'package:flutter/widgets.dart';
 import 'package:thermion_flutter_platform_interface/thermion_flutter_platform_interface.dart';
 import 'package:thermion_flutter_platform_interface/thermion_flutter_texture.dart';
 
 ///
-/// Handles all platform-specific initialization work necessary to create a
-/// backing rendering surface in a Flutter application.
-/// Instantiates/wraps a [ThermionViewer],
+/// Handles all platform-specific initialization to create a backing rendering
+/// surface in a Flutter application and lifecycle listeners to pause rendering
+/// when the app is inactive or in the background.
+/// Call [createViewer] to create an instance of [ThermionViewer].
+/// This is a lightweight singleton that  
 ///
 class ThermionFlutterPlugin {
-  ThermionViewer get _viewer => ThermionFlutterPlatform.instance.viewer;
+  
+  ThermionFlutterPlugin._();
 
-  bool _wasRenderingOnInactive = false;
+  static AppLifecycleListener? _appLifecycleListener;
 
-  void _handleStateChange(AppLifecycleState state) async {
-    await initialized;
+  static bool _initializing = false;
+
+  static ThermionViewer? _viewer;
+
+  static bool _wasRenderingOnInactive = false;
+
+  static void _handleStateChange(AppLifecycleState state) async {
+    if (_viewer == null) {
+      return;
+    }
+
+    await _viewer!.initialized;
     switch (state) {
       case AppLifecycleState.detached:
-        print("Detached");
         if (!_wasRenderingOnInactive) {
-          _wasRenderingOnInactive = _viewer.rendering;
+          _wasRenderingOnInactive = _viewer!.rendering;
         }
-        await _viewer.setRendering(false);
+        await _viewer!.setRendering(false);
         break;
       case AppLifecycleState.hidden:
-        print("Hidden");
         if (!_wasRenderingOnInactive) {
-          _wasRenderingOnInactive = _viewer.rendering;
+          _wasRenderingOnInactive = _viewer!.rendering;
         }
-        await _viewer.setRendering(false);
+        await _viewer!.setRendering(false);
         break;
       case AppLifecycleState.inactive:
-        print("Inactive");
         if (!_wasRenderingOnInactive) {
-          _wasRenderingOnInactive = _viewer.rendering;
+          _wasRenderingOnInactive = _viewer!.rendering;
         }
         // on Windows in particular, restoring a window after minimizing stalls the renderer (and the whole application) for a considerable length of time.
         // disabling rendering on minimize seems to fix the issue (so I wonder if there's some kind of command buffer that's filling up while the window is minimized).
-        await _viewer.setRendering(false);
+        await _viewer!.setRendering(false);
         break;
       case AppLifecycleState.paused:
-        print("Paused");
         if (!_wasRenderingOnInactive) {
-          _wasRenderingOnInactive = _viewer.rendering;
+          _wasRenderingOnInactive = _viewer!.rendering;
         }
-        await _viewer.setRendering(false);
+        await _viewer!.setRendering(false);
         break;
       case AppLifecycleState.resumed:
-        print("Resumed");
-        await _viewer.setRendering(_wasRenderingOnInactive);
+        await _viewer!.setRendering(_wasRenderingOnInactive);
         break;
     }
   }
 
-  AppLifecycleListener? _appLifecycleListener;
-
-  final _initialized = Completer<bool>();
-  Future<bool> get initialized => _initialized.future;
-
-  bool _initializing = false;
-
-  Future<ThermionViewer> initialize({String? uberArchivePath}) async {
-    _initializing = true;
-    if (_initialized.isCompleted) {
-      return ThermionFlutterPlatform.instance.viewer;
+  static Future<ThermionViewer> createViewer({String? uberArchivePath}) async {
+    if (_initializing) {
+      throw Exception("Existing call to createViewer has not completed.");
     }
-    await ThermionFlutterPlatform.instance
-        .initialize(uberArchivePath: uberArchivePath);
-
+    _initializing = true;
+    _viewer = await ThermionFlutterPlatform.instance
+        .createViewer(uberArchivePath: uberArchivePath);
     _appLifecycleListener = AppLifecycleListener(
       onStateChange: _handleStateChange,
     );
-    _viewer.initialized;
-    _initialized.complete(true);
+    _viewer!.onDispose(() async {
+      _viewer = null;
+      _appLifecycleListener?.dispose();
+      _appLifecycleListener = null;
+    });
     _initializing = false;
-    return ThermionFlutterPlatform.instance.viewer;
+    return _viewer!;
   }
 
-  Future<ThermionFlutterTexture?> createTexture(
+  static Future<ThermionFlutterTexture?> createTexture(
       int width, int height, int offsetLeft, int offsetRight) async {
     return ThermionFlutterPlatform.instance
         .createTexture(width, height, offsetLeft, offsetRight);
   }
 
-  Future destroyTexture(ThermionFlutterTexture texture) async {
+  static Future destroyTexture(ThermionFlutterTexture texture) async {
     return ThermionFlutterPlatform.instance.destroyTexture(texture);
   }
 
   @override
-  Future<ThermionFlutterTexture?> resizeTexture(ThermionFlutterTexture texture,
+  static Future<ThermionFlutterTexture?> resizeTexture(ThermionFlutterTexture texture,
       int width, int height, int offsetLeft, int offsetRight) async {
     return ThermionFlutterPlatform.instance
         .resizeTexture(texture, width, height, offsetLeft, offsetRight);
   }
-
-  void dispose() {
-    ThermionFlutterPlatform.instance.dispose();
-    _appLifecycleListener?.dispose();
-  }
 }

thermion_flutter/thermion_flutter/lib/thermion/widgets/camera/gestures/thermion_gesture_detector.dart

@@ -3,15 +3,15 @@ import 'dart:io';
 import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
-import 'filament_gesture_detector_desktop.dart';
-import 'filament_gesture_detector_mobile.dart';
+import 'thermion_gesture_detector_desktop.dart';
+import 'thermion_gesture_detector_mobile.dart';
 
 enum GestureType { rotateCamera, panCamera, panBackground }
 
 ///
 /// A widget that translates finger/mouse gestures to zoom/pan/rotate actions.
 ///
-class FilamentGestureDetector extends StatelessWidget {
+class ThermionGestureDetector extends StatelessWidget {
   ///
   /// The content to display below the gesture detector/listener widget.
   /// This will usually be a ThermionWidget (so you can navigate by directly interacting with the viewport), but this is not necessary.
@@ -45,7 +45,7 @@ class FilamentGestureDetector extends StatelessWidget {
   final void Function(ScaleUpdateDetails)? onScaleUpdate;
   final void Function(ScaleEndDetails)? onScaleEnd;
 
-  const FilamentGestureDetector(
+  const ThermionGestureDetector(
       {Key? key,
       required this.controller,
       this.child,
@@ -68,7 +68,7 @@ class FilamentGestureDetector extends StatelessWidget {
           if (kIsWeb || Platform.isLinux ||
               Platform.isWindows ||
               Platform.isMacOS) {
-            return FilamentGestureDetectorDesktop(
+            return ThermionGestureDetectorDesktop(
               controller: controller,
               child: child,
               showControlOverlay: showControlOverlay,
@@ -76,7 +76,7 @@ class FilamentGestureDetector extends StatelessWidget {
               enablePicking: enablePicking,
             );
           } else {
-            return FilamentGestureDetectorMobile(
+            return ThermionGestureDetectorMobile(
                 controller: controller,
                 child: child,
                 showControlOverlay: showControlOverlay,

thermion_flutter/thermion_flutter/lib/thermion/widgets/camera/gestures/thermion_gesture_detector_desktop.dart

@@ -1,5 +1,5 @@
 import 'dart:async';
-
+import 'package:logging/logging.dart';
 import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
@@ -7,7 +7,7 @@ import 'package:flutter/material.dart';
 ///
 /// A widget that translates finger/mouse gestures to zoom/pan/rotate actions.
 ///
-class FilamentGestureDetectorDesktop extends StatefulWidget {
+class ThermionGestureDetectorDesktop extends StatefulWidget {
   ///
   /// The content to display below the gesture detector/listener widget.
   /// This will usually be a ThermionWidget (so you can navigate by directly interacting with the viewport), but this is not necessary.
@@ -37,7 +37,7 @@ class FilamentGestureDetectorDesktop extends StatefulWidget {
   ///
   final bool enablePicking;
 
-  const FilamentGestureDetectorDesktop(
+  const ThermionGestureDetectorDesktop(
       {Key? key,
       required this.controller,
       this.child,
@@ -47,12 +47,13 @@ class FilamentGestureDetectorDesktop extends StatefulWidget {
       : super(key: key);
 
   @override
-  State<StatefulWidget> createState() => _FilamentGestureDetectorDesktopState();
+  State<StatefulWidget> createState() => _ThermionGestureDetectorDesktopState();
 }
 
-class _FilamentGestureDetectorDesktopState
-    extends State<FilamentGestureDetectorDesktop> {
-  ///
+class _ThermionGestureDetectorDesktopState
+    extends State<ThermionGestureDetectorDesktop> {
+  final _logger = Logger("_ThermionGestureDetectorDesktopState");
+
   ///
   ///
   // ignore: unused_field
@@ -65,11 +66,16 @@ class _FilamentGestureDetectorDesktopState
   @override
   void initState() {
     super.initState();
-    _gizmo = widget.controller.gizmo;
+    try {
+      _gizmo = widget.controller.gizmo;
+    } catch (err) {
+      _logger.warning(
+          "Failed to get gizmo. If you are running on WASM, this is expected");
+    }
   }
 
   @override
-  void didUpdateWidget(FilamentGestureDetectorDesktop oldWidget) {
+  void didUpdateWidget(ThermionGestureDetectorDesktop oldWidget) {
     if (widget.showControlOverlay != oldWidget.showControlOverlay ||
         widget.enableCamera != oldWidget.enableCamera ||
         widget.enablePicking != oldWidget.enablePicking) {

thermion_flutter/thermion_flutter/lib/thermion/widgets/camera/gestures/thermion_gesture_detector_mobile.dart

@@ -7,7 +7,7 @@ enum GestureType { rotateCamera, panCamera, panBackground }
 ///
 /// A widget that translates finger/mouse gestures to zoom/pan/rotate actions.
 ///
-class FilamentGestureDetectorMobile extends StatefulWidget {
+class ThermionGestureDetectorMobile extends StatefulWidget {
   ///
   /// The content to display below the gesture detector/listener widget.
   /// This will usually be a ThermionWidget (so you can navigate by directly interacting with the viewport), but this is not necessary.
@@ -43,7 +43,7 @@ class FilamentGestureDetectorMobile extends StatefulWidget {
   final void Function(ScaleUpdateDetails)? onScaleUpdate;
   final void Function(ScaleEndDetails)? onScaleEnd;
 
-  const FilamentGestureDetectorMobile(
+  const ThermionGestureDetectorMobile(
       {Key? key,
       required this.controller,
       this.child,
@@ -57,11 +57,11 @@ class FilamentGestureDetectorMobile extends StatefulWidget {
       : super(key: key);
 
   @override
-  State<StatefulWidget> createState() => _FilamentGestureDetectorMobileState();
+  State<StatefulWidget> createState() => _ThermionGestureDetectorMobileState();
 }
 
-class _FilamentGestureDetectorMobileState
-    extends State<FilamentGestureDetectorMobile> {
+class _ThermionGestureDetectorMobileState
+    extends State<ThermionGestureDetectorMobile> {
   GestureType gestureType = GestureType.panCamera;
 
   final _icons = {
@@ -116,7 +116,7 @@ class _FilamentGestureDetectorMobileState
   }
 
   @override
-  void didUpdateWidget(FilamentGestureDetectorMobile oldWidget) {
+  void didUpdateWidget(ThermionGestureDetectorMobile oldWidget) {
     if (widget.showControlOverlay != oldWidget.showControlOverlay ||
         widget.enableCamera != oldWidget.enableCamera ||
         widget.enablePicking != oldWidget.enablePicking) {

thermion_flutter/thermion_flutter/lib/thermion/widgets/thermion_widget.dart

@@ -9,7 +9,7 @@ import 'package:thermion_flutter/thermion_flutter.dart';
 import 'resize_observer.dart';
 
 class ThermionWidget extends StatefulWidget {
-  final ThermionFlutterPlugin plugin;
+  final ThermionViewer viewer;
 
   ///
   /// The content to render before the texture widget is available.
@@ -17,7 +17,7 @@ class ThermionWidget extends StatefulWidget {
   ///
   final Widget? initial;
 
-  const ThermionWidget({Key? key, this.initial, required this.plugin})
+  const ThermionWidget({Key? key, this.initial, required this.viewer})
       : super(key: key);
 
   @override
@@ -30,12 +30,22 @@ class _ThermionWidgetState extends State<ThermionWidget> {
   @override
   void initState() {
     WidgetsBinding.instance.addPostFrameCallback((timeStamp) async {
-      await widget.plugin.initialized;
+      await widget.viewer.initialized;
+      widget.viewer.onDispose(() async {
+        if (_texture != null) {
+          var texture = _texture;
+          _texture = null;
+          if (mounted) {
+            setState(() {});
+          }
+          await ThermionFlutterPlugin.destroyTexture(texture!);
+        }
+      });
       var dpr = MediaQuery.of(context).devicePixelRatio;
       var size = ((context.findRenderObject()) as RenderBox).size;
       var width = (dpr * size.width).ceil();
       var height = (dpr * size.height).ceil();
-      _texture = await widget.plugin.createTexture(width, height, 0, 0);
+      _texture = await ThermionFlutterPlugin.createTexture(width, height, 0, 0);
 
       if (mounted) {
         setState(() {});
@@ -50,18 +60,20 @@ class _ThermionWidgetState extends State<ThermionWidget> {
   Future _resizeTexture(Size newSize) async {
     _resizeTimer?.cancel();
     _resizeTimer = Timer(Duration(milliseconds: 500), () async {
-      if (_resizing) {
+      if (_resizing || !mounted) {
         return;
       }
       _resizeTimer!.cancel();
       _resizing = true;
       var oldTexture = _texture;
       _texture = null;
-      setState(() {});
+      if (!mounted) {
+        return;
+      }
 
       var dpr = MediaQuery.of(context).devicePixelRatio;
 
-      _texture = await widget.plugin.resizeTexture(oldTexture!,
+      _texture = await ThermionFlutterPlugin.resizeTexture(oldTexture!,
           (dpr * newSize.width).ceil(), (dpr * newSize.height).ceil(), 0, 0);
       setState(() {});
       _resizing = false;

thermion_flutter/thermion_flutter/lib/thermion_flutter.dart

@@ -2,4 +2,6 @@ library thermion_flutter;
 
 export 'thermion/thermion_flutter_plugin.dart';
 export 'thermion/widgets/thermion_widget.dart';
+export 'thermion/widgets/camera/gestures/thermion_gesture_detector.dart';
+
 export 'package:thermion_dart/thermion_dart.dart';

thermion_flutter/thermion_flutter/linux/thermion_flutter_plugin.cc

@@ -871,7 +871,7 @@ void thermion_flutter_plugin_register_with_registrar(FlPluginRegistrar* registra
   g_autoptr(FlStandardMethodCodec) codec = fl_standard_method_codec_new();
   g_autoptr(FlMethodChannel) channel =
       fl_method_channel_new(fl_plugin_registrar_get_messenger(registrar),
-                            "app.polyvox.filament/event",
+                            "dev.thermion.flutter/event",
                             FL_METHOD_CODEC(codec));
   fl_method_channel_set_method_call_handler(channel, method_call_cb,
                                             g_object_ref(plugin),

thermion_flutter/thermion_flutter/macos/Classes/SwiftThermionFlutterPlugin.swift

@@ -8,6 +8,8 @@ public class SwiftThermionFlutterPlugin: NSObject, FlutterPlugin {
     var texture: ThermionFlutterTexture?
     
     var createdAt = Date()
+
+    var destroying = false
     
     var resources:[UInt32:NSData] = [:]
   
@@ -65,48 +67,59 @@ public class SwiftThermionFlutterPlugin: NSObject, FlutterPlugin {
     public static func register(with registrar: FlutterPluginRegistrar) {
         let _messenger = registrar.messenger;
         messenger = _messenger;
-        let channel = FlutterMethodChannel(name: "app.polyvox.filament/event", binaryMessenger: _messenger)
+        let channel = FlutterMethodChannel(name: "dev.thermion.flutter/event", binaryMessenger: _messenger)
         let instance = SwiftThermionFlutterPlugin(textureRegistry: registrar.textures, registrar:registrar)
         registrar.addMethodCallDelegate(instance, channel: channel)
     }
     
+    var resourceLoaderWrapper:UnsafeMutablePointer<ResourceLoaderWrapper>? = nil
+    var renderCallbackHolder:[Any] = []
+    
     init(textureRegistry: FlutterTextureRegistry, registrar:FlutterPluginRegistrar) {
         self.registry = textureRegistry;
         self.registrar = registrar
     }
-
     
     public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
         let methodName = call.method;
         switch methodName {
             case "getResourceLoaderWrapper":
-            var resourceLoaderWrapper = make_resource_loader(loadResource, freeResource, Unmanaged.passUnretained(self).toOpaque())
-                result(unsafeBitCast(resourceLoaderWrapper, to:Int64.self))            
+                if(resourceLoaderWrapper == nil) {
+                    resourceLoaderWrapper = make_resource_loader(loadResource, freeResource, Unmanaged.passUnretained(self).toOpaque())
+                }
+                result(Int64(Int(bitPattern: resourceLoaderWrapper!)))
             case "getRenderCallback":
-                let renderCallback = markTextureFrameAvailable
-                let resultArray:[Any] = [
-                    unsafeBitCast(renderCallback, to:Int64.self), unsafeBitCast(Unmanaged.passUnretained(self), to:UInt64.self)]
-                result(resultArray)
+                if(renderCallbackHolder.isEmpty) {
+                    renderCallbackHolder.append(unsafeBitCast(markTextureFrameAvailable, to:Int64.self))
+                    renderCallbackHolder.append(unsafeBitCast(Unmanaged.passUnretained(self), to:UInt64.self))
+                }
+                result(renderCallbackHolder)
             case "getDriverPlatform":
                 result(nil)
             case "getSharedContext":
                 result(nil)
             case "createTexture":
+                if(destroying) {
+                    result(nil)
+                    return
+                }
                 let args = call.arguments as! [Any]
                 let width = args[0] as! Int64
                 let height = args[1] as! Int64
             
                 self.texture = ThermionFlutterTexture(registry: registry, width: width, height: height)
 
-                if(self.texture?.metalTextureAddress == -1) {
+                if(self.texture!.texture.metalTextureAddress == -1) {
                     result(nil)
                 } else {
-                    result([self.texture!.flutterTextureId as Any, self.texture?.metalTextureAddress, nil])
+                    result([self.texture!.flutterTextureId as Any, self.texture!.texture.metalTextureAddress, nil])
                 }
             case "destroyTexture":
+                self.destroying = true
                 self.texture?.destroy()
                 self.texture = nil
                 result(true)
+                self.destroying = false
             default:
                 result(FlutterMethodNotImplemented)
         }

thermion_flutter/thermion_flutter/macos/Classes/ThermionDartTexture.swift

@@ -11,18 +11,20 @@ import GLKit
     ] as [CFString : Any] as CFDictionary
 
     @objc public var cvMetalTextureCache:CVMetalTextureCache?
+    @objc public var metalDevice:MTLDevice?
+
     @objc public var cvMetalTexture:CVMetalTexture?
     @objc public var metalTexture:MTLTexture?
-    @objc public var metalDevice:MTLDevice?
     @objc public var metalTextureAddress:Int = -1
 
     @objc override public init() {
         
     }
 
-    @objc public init(width:Int64, height:Int64) { 
-        
-        self.metalDevice = MTLCreateSystemDefaultDevice()!
+    @objc public init(width:Int64, height:Int64) {
+        if(self.metalDevice == nil) {
+            self.metalDevice = MTLCreateSystemDefaultDevice()!
+        }
 
         // create pixel buffer
         if(CVPixelBufferCreate(kCFAllocatorDefault, Int(width), Int(height),
@@ -31,37 +33,36 @@ import GLKit
             metalTextureAddress = -1;
             return
         }
-           
-        var cvret = CVMetalTextureCacheCreate(
-            kCFAllocatorDefault,
-            nil,
-            metalDevice!,
-            nil,
-            &cvMetalTextureCache);
-        if(cvret != 0) { 
-            print("Error creating Metal texture cache")
-            metalTextureAddress = -1
-            return
+        if self.cvMetalTextureCache == nil {
+            let cacheCreationResult = CVMetalTextureCacheCreate(
+                kCFAllocatorDefault,
+                nil,
+                self.metalDevice!,
+                nil,
+                &self.cvMetalTextureCache)
+            if(cacheCreationResult != kCVReturnSuccess) {
+                print("Error creating Metal texture cache")
+                metalTextureAddress = -1
+                return
+            }
         }
-        cvret = CVMetalTextureCacheCreateTextureFromImage(
+        let cvret = CVMetalTextureCacheCreateTextureFromImage(
                         kCFAllocatorDefault,
-                        cvMetalTextureCache!,
+                        self.cvMetalTextureCache!,
                         pixelBuffer!, nil,
                         MTLPixelFormat.bgra8Unorm,
                         Int(width), Int(height),
                         0,
                         &cvMetalTexture)
-        if(cvret != 0) { 
+        if(cvret != kCVReturnSuccess) { 
             print("Error creating texture from image")
             metalTextureAddress = -1
             return
         }
         metalTexture = CVMetalTextureGetTexture(cvMetalTexture!)
-        let metalTexturePtr = Unmanaged.passUnretained(metalTexture!).toOpaque()
+        let metalTexturePtr = Unmanaged.passRetained(metalTexture!).toOpaque()
         metalTextureAddress = Int(bitPattern:metalTexturePtr)
-        
-        print("Created metal texture @ \(metalTextureAddress)")
-        
+                
         // CVPixelBufferLockBaseAddress(pixelBuffer!, CVPixelBufferLockFlags(rawValue: 0))
         //        let bufferWidth = Int(CVPixelBufferGetWidth(pixelBuffer!))
         //        let bufferHeight = Int(CVPixelBufferGetHeight(pixelBuffer!))
@@ -95,7 +96,12 @@ import GLKit
     }
 
     @objc public func destroyTexture()  {
-        metalTexture = nil
+       CVMetalTextureCacheFlush(self.cvMetalTextureCache!, 0)
+       self.metalTexture = nil
+       self.cvMetalTexture = nil
+       self.pixelBuffer = nil
+       self.metalDevice = nil
+       self.cvMetalTextureCache = nil
     }
 
 

thermion_flutter/thermion_flutter/macos/Classes/ThermionFlutterTexture.swift

@@ -2,20 +2,24 @@ import Foundation
 import GLKit
 import FlutterMacOS
 
-public class ThermionFlutterTexture : ThermionDartTexture,  FlutterTexture {
+public class ThermionFlutterTexture : NSObject, FlutterTexture {
     
     var flutterTextureId: Int64 = -1
     var registry: FlutterTextureRegistry
+    var texture: ThermionDartTexture 
     
     init(registry:FlutterTextureRegistry, width:Int64, height:Int64) {
         self.registry = registry
-        super.init(width:width, height:height)    
+        self.texture = ThermionDartTexture(width:width, height: height)
+        super.init()
         self.flutterTextureId = registry.register(self)
-            
     }
     
     public func copyPixelBuffer() -> Unmanaged<CVPixelBuffer>? {
-        return Unmanaged.passRetained(pixelBuffer!);
+        if(self.texture.pixelBuffer == nil) {
+            return nil
+        }
+        return Unmanaged.passRetained(self.texture.pixelBuffer!);
     }
     
     public func onTextureUnregistered(_ texture:FlutterTexture) {
@@ -24,7 +28,7 @@ public class ThermionFlutterTexture : ThermionDartTexture,  FlutterTexture {
     
     public func destroy() {
         self.registry.unregisterTexture(self.flutterTextureId)
-        self.destroyTexture()
+        self.texture.destroyTexture()
     }
     
-}
+}

thermion_flutter/thermion_flutter/macos/include/ResourceBuffer.h

@@ -0,0 +1,44 @@
+#ifndef RESOURCE_BUFFER_H
+#define RESOURCE_BUFFER_H
+
+#include <stdint.h>
+#include <stdlib.h>
+
+//
+// A ResourceBuffer is a unified interface for working with
+// binary assets across various platforms.
+// This is simply:
+// 1) a pointer to some data
+// 2) the length of the data
+// 3) an ID that can be passed back to the native platform to release the underlying asset when needed.
+//
+typedef struct ResourceBuffer
+{
+  const void *const data;
+  const int32_t size;
+  const int32_t id;
+
+#if defined(__cplusplus)
+  ResourceBuffer(void *const data, int32_t size, int32_t id) : data(data), size(size), id(id) {}
+#endif
+} ResourceBuffer;
+
+typedef void (*LoadFilamentResourceIntoOutPointer)(const char *uri, ResourceBuffer *out);
+typedef ResourceBuffer (*LoadFilamentResource)(const char *uri);
+typedef ResourceBuffer (*LoadFilamentResourceFromOwner)(const char *const, void *const owner);
+typedef void (*FreeFilamentResource)(ResourceBuffer);
+typedef void (*FreeFilamentResourceFromOwner)(ResourceBuffer, void *const owner);
+
+typedef struct ResourceLoaderWrapper
+{
+  LoadFilamentResource loadResource;
+  FreeFilamentResource freeResource;
+  LoadFilamentResourceFromOwner loadFromOwner;
+  FreeFilamentResourceFromOwner freeFromOwner;
+  void *owner;
+  LoadFilamentResourceIntoOutPointer loadToOut;
+} ResourceLoaderWrapper;
+
+ResourceLoaderWrapper *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner);
+
+#endif

thermion_flutter/thermion_flutter/macos/include/ResourceBuffer.hpp

@@ -1,91 +0,0 @@
-#ifndef RESOURCE_BUFFER_H
-#define RESOURCE_BUFFER_H
-
-#include <stdint.h>
-#include <stdlib.h>
-
-//
-// A ResourceBuffer is a unified interface for working with
-// binary assets across various platforms.
-// This is simply:
-// 1) a pointer to some data
-// 2) the length of the data
-// 3) an ID that can be passed back to the native platform to release the underlying asset when needed.
-//
-struct ResourceBuffer
-{
-  const void *const data;
-  const int32_t size;
-  const int32_t id;
-};
-
-typedef struct ResourceBuffer ResourceBuffer;
-typedef ResourceBuffer (*LoadFilamentResource)(const char *uri);
-typedef ResourceBuffer (*LoadFilamentResourceFromOwner)(const char *const, void *const owner);
-typedef void (*FreeFilamentResource)(ResourceBuffer);
-typedef void (*FreeFilamentResourceFromOwner)(ResourceBuffer, void *const owner);
-
-struct ResourceLoaderWrapper
-{
-  LoadFilamentResource loadResource;
-  FreeFilamentResource freeResource;
-  LoadFilamentResourceFromOwner loadFromOwner;
-  FreeFilamentResourceFromOwner freeFromOwner;
-  void *owner;
-};
-typedef struct ResourceLoaderWrapper ResourceLoaderWrapper;
-
-
-#if defined(__cplusplus)
-
-namespace thermion_filament {
-
-struct ResourceLoaderWrapperImpl : public ResourceLoaderWrapper
-{
-
-  ResourceLoaderWrapperImpl(LoadFilamentResource loader, FreeFilamentResource freeResource)
-  {
-    loadFromOwner = nullptr;
-    freeFromOwner = nullptr;
-    loadResource = loader;
-    freeResource = freeResource;
-    owner = nullptr;
-  }
-
-  ResourceLoaderWrapperImpl(LoadFilamentResourceFromOwner loader, FreeFilamentResourceFromOwner freeResource, void * owner)
-  {
-    loadResource = nullptr;
-    freeResource = nullptr;
-    loadFromOwner = loader;
-    freeFromOwner = freeResource;
-    owner = owner;
-  }
-
-  ResourceBuffer load(const char *uri) const
-  {
-    if (loadFromOwner)
-    {
-      auto rb = loadFromOwner(uri, owner);
-      return rb;
-    }
-    auto rb = loadResource(uri);
-    return rb;
-  }
-
-  void free(ResourceBuffer rb) const
-  {
-    if (freeFromOwner)
-    {
-      freeFromOwner(rb, owner);
-    }
-    else
-    {
-      freeResource(rb);
-    }
-  }
-};
-
-}
-#endif
-
-#endif

thermion_flutter/thermion_flutter/macos/include/SwiftThermionFlutterPlugin-Bridging-Header.h

@@ -3,11 +3,14 @@
 
 #include <stdint.h>
 
-#include "ResourceBuffer.hpp"
+#include "ResourceBuffer.h"
 
 ResourceLoaderWrapper *make_resource_loader(LoadFilamentResourceFromOwner loadFn, FreeFilamentResourceFromOwner freeFn, void *const owner)
 {
     ResourceLoaderWrapper *rlw = (ResourceLoaderWrapper *)malloc(sizeof(ResourceLoaderWrapper));
+    rlw->loadResource = NULL;
+    rlw->freeResource = NULL;
+    rlw->loadToOut = NULL;
     rlw->loadFromOwner = loadFn;
     rlw->freeFromOwner = freeFn;
     rlw->owner = owner;

thermion_flutter/thermion_flutter/macos/thermion_flutter.podspec

@@ -13,8 +13,8 @@ A new Flutter plugin project.
   s.license          = { :file => '../LICENSE' }
   s.author           = { 'Your Company' => 'email@example.com' }
   s.source           = { :path => '.' }
-  s.source_files = 'Classes/*', 'include/ResourceBuffer.hpp','include/SwiftThermionFlutterPlugin-Bridging-Header.h'
-  s.public_header_files = 'include/SwiftThermionFlutterPlugin-Bridging-Header.h', 'include/ResourceBuffer.hpp'
+  s.source_files = 'Classes/*', 'include/ResourceBuffer.h','include/SwiftThermionFlutterPlugin-Bridging-Header.h'
+  s.public_header_files = 'include/SwiftThermionFlutterPlugin-Bridging-Header.h', 'include/ResourceBuffer.h'
   s.dependency 'FlutterMacOS'
 
   s.platform = :osx, '13'

thermion_flutter/thermion_flutter/pubspec.yaml

@@ -1,6 +1,6 @@
 name: thermion_flutter
 description: Flutter plugin for 3D rendering with the Thermion toolkit.
-version: 0.0.3
+version: 0.1.1+4
 homepage: https://docs.page/nmfisher/thermion
 repository: https://github.com/nmfisher/thermion
 
@@ -17,10 +17,11 @@ dependencies:
   plugin_platform_interface: ^2.0.0
   ffi: ^2.1.2
   animation_tools_dart: ^0.0.4
-  thermion_dart: ^0.0.4
-  thermion_flutter_platform_interface: ^0.0.1
-  thermion_flutter_ffi: ^0.0.1
-  thermion_flutter_web: ^0.0.1
+  thermion_dart: ^0.1.0+3
+  thermion_flutter_platform_interface: ^0.1.0+3
+  thermion_flutter_ffi: ^0.1.0+3
+  thermion_flutter_web: ^0.0.1+3
+  logging: ^1.2.0
 
 dev_dependencies:
   flutter_test:

thermion_flutter/thermion_flutter/windows/thermion_flutter_plugin.cpp

@@ -43,7 +43,7 @@ void ThermionFlutterPlugin::RegisterWithRegistrar(
     flutter::PluginRegistrarWindows *registrar) {
   auto channel =
       std::make_unique<flutter::MethodChannel<flutter::EncodableValue>>(
-          registrar->messenger(), "app.polyvox.filament/event",
+          registrar->messenger(), "dev.thermion.flutter/event",
           &flutter::StandardMethodCodec::GetInstance());
 
   auto plugin = std::make_unique<ThermionFlutterPlugin>(

thermion_flutter/thermion_flutter_ffi/CHANGELOG.md

@@ -1,2 +1,14 @@
+## 0.1.0+3
+
+ - Update a dependency to the latest release.
+
+## 0.1.0+2
+
+ - **REFACTOR**: rearrange some stubs/imports for easier web WASM deployment.
+
+## 0.1.0+1
+
+ - Update a dependency to the latest release.
+
 ## 0.0.1
 * First release of Dart-only package

thermion_flutter/thermion_flutter_ffi/lib/thermion_flutter_ffi.dart

@@ -2,25 +2,29 @@ import 'dart:async';
 import 'package:flutter/services.dart';
 import 'dart:ffi';
 import 'package:thermion_dart/thermion_dart.dart';
+import 'package:thermion_dart/thermion_dart/thermion_viewer_ffi.dart';
 import 'package:thermion_flutter_platform_interface/thermion_flutter_platform_interface.dart';
 import 'package:thermion_flutter_platform_interface/thermion_flutter_texture.dart';
 
 ///
-/// A subclass of [ThermionViewerFFI] that uses Flutter platform channels
-/// to create rendering contexts, callbacks and surfaces (either backing texture(s).
+/// An implementation of [ThermionFlutterPlatform] that uses a Flutter platform
+/// channel to create a rendering context, resource loaders, and
+/// render target(s).
 ///
 class ThermionFlutterFFI extends ThermionFlutterPlatform {
-  final _channel = const MethodChannel("app.polyvox.filament/event");
+  final _channel = const MethodChannel("dev.thermion.flutter/event");
 
-  late final ThermionViewerFFI viewer;
+  ThermionViewerFFI? _viewer;
+
+  ThermionFlutterFFI._() {}
 
   static void registerWith() {
-    ThermionFlutterPlatform.instance = ThermionFlutterFFI();
+    ThermionFlutterPlatform.instance = ThermionFlutterFFI._();
   }
 
   final _textures = <ThermionFlutterTexture>{};
 
-  Future initialize({String? uberArchivePath}) async {
+  Future<ThermionViewer> createViewer({String? uberArchivePath}) async {
     var resourceLoader = Pointer<Void>.fromAddress(
         await _channel.invokeMethod("getResourceLoaderWrapper"));
 
@@ -46,22 +50,24 @@ class ThermionFlutterFFI extends ThermionFlutterPlatform {
         ? nullptr
         : Pointer<Void>.fromAddress(sharedContext);
 
-    viewer = ThermionViewerFFI(
+    _viewer = ThermionViewerFFI(
         resourceLoader: resourceLoader,
         renderCallback: renderCallback,
         renderCallbackOwner: renderCallbackOwner,
         driver: driverPtr,
         sharedContext: sharedContextPtr,
         uberArchivePath: uberArchivePath);
-    await viewer.initialized;
+    await _viewer!.initialized;
+    return _viewer!;
   }
 
   bool _creatingTexture = false;
+  bool _destroyingTexture = false;
 
   Future _waitForTextureCreationToComplete() async {
     var iter = 0;
 
-    while (_creatingTexture) {
+    while (_creatingTexture || _destroyingTexture) {
       await Future.delayed(Duration(milliseconds: 50));
       iter++;
       if (iter > 10) {
@@ -104,10 +110,15 @@ class ThermionFlutterFFI extends ThermionFlutterPlatform {
 
     if (_textures.length > 1) {
       throw Exception("Multiple textures not yet supported");
-    } else if (_textures.length == 1 &&
-        _textures.first.height == height &&
-        _textures.first.width == width) {
-      return _textures.first;
+    } else if (_textures.length == 1) {
+      if (_textures.first.height == height && _textures.first.width == width) {
+        return _textures.first;
+      } else {
+        await _viewer!.setRendering(false);
+        await _viewer!.destroySwapChain();
+        await destroyTexture(_textures.first);
+        _textures.clear();
+      }
     }
 
     _creatingTexture = true;
@@ -125,39 +136,44 @@ class ThermionFlutterFFI extends ThermionFlutterPlatform {
     print(
         "Created texture with flutter texture id ${flutterTextureId}, hardwareTextureId $hardwareTextureId and surfaceAddress $surfaceAddress");
 
-    viewer.viewportDimensions = (width.toDouble(), height.toDouble());
+    _viewer?.viewportDimensions = (width.toDouble(), height.toDouble());
 
     final texture = ThermionFlutterTexture(
-      flutterTextureId, hardwareTextureId, width, height, surfaceAddress);
+        flutterTextureId, hardwareTextureId, width, height, surfaceAddress);
 
-    await viewer.createSwapChain(width.toDouble(), height.toDouble(),
-      surface: texture.surfaceAddress == null
-          ? nullptr
-          : Pointer<Void>.fromAddress(texture.surfaceAddress!));
+    await _viewer?.createSwapChain(width.toDouble(), height.toDouble(),
+        surface: texture.surfaceAddress == null
+            ? nullptr
+            : Pointer<Void>.fromAddress(texture.surfaceAddress!));
 
     if (texture.hardwareTextureId != null) {
-      print("Creating render target");
       // ignore: unused_local_variable
-      var renderTarget = await viewer.createRenderTarget(
-        width.toDouble(), height.toDouble(), texture.hardwareTextureId!);
+      var renderTarget = await _viewer?.createRenderTarget(
+          width.toDouble(), height.toDouble(), texture.hardwareTextureId!);
     }
-    
-    await viewer.updateViewportAndCameraProjection(
+
+    await _viewer?.updateViewportAndCameraProjection(
         width.toDouble(), height.toDouble());
-    viewer.render();
+    _viewer?.render();
     _creatingTexture = false;
-    
+
     _textures.add(texture);
-    
+
     return texture;
   }
 
   ///
-  /// Called by [ThermionWidget] to destroy a texture. Don't call this yourself.
+  /// Destroy a texture and clean up the texture cache (if applicable).
   ///
   Future destroyTexture(ThermionFlutterTexture texture) async {
-    await _channel.invokeMethod("destroyTexture", texture.flutterTextureId);
+    if (_creatingTexture || _destroyingTexture) {
+      throw Exception(
+          "Cannot destroy texture while concurrent call to createTexture/destroyTexture has not completed");
+    }
+    _destroyingTexture = true;
     _textures.remove(texture);
+    await _channel.invokeMethod("destroyTexture", texture.flutterTextureId);
+    _destroyingTexture = false;
   }
 
   bool _resizing = false;
@@ -172,14 +188,14 @@ class ThermionFlutterFFI extends ThermionFlutterPlatform {
       throw Exception("Resize underway");
     }
 
-    if ((width - viewer.viewportDimensions.$1).abs() < 0.001 ||
-        (height - viewer.viewportDimensions.$2).abs() < 0.001) {
+    if ((width - _viewer!.viewportDimensions.$1).abs() < 0.001 ||
+        (height - _viewer!.viewportDimensions.$2).abs() < 0.001) {
       return texture;
     }
     _resizing = true;
-    bool wasRendering = viewer.rendering;
-    await viewer.setRendering(false);
-    await viewer.destroySwapChain();
+    bool wasRendering = _viewer!.rendering;
+    await _viewer!.setRendering(false);
+    await _viewer!.destroySwapChain();
     await destroyTexture(texture);
 
     var result = await _channel
@@ -188,34 +204,29 @@ class ThermionFlutterFFI extends ThermionFlutterPlatform {
     if (result == null || result[0] == -1) {
       throw Exception("Failed to create texture");
     }
-    viewer.viewportDimensions = (width.toDouble(), height.toDouble());
+    _viewer!.viewportDimensions = (width.toDouble(), height.toDouble());
     var newTexture =
         ThermionFlutterTexture(result[0], result[1], width, height, result[2]);
 
-    await viewer.createSwapChain(width.toDouble(), height.toDouble(),
+    await _viewer!.createSwapChain(width.toDouble(), height.toDouble(),
         surface: newTexture.surfaceAddress == null
             ? nullptr
             : Pointer<Void>.fromAddress(newTexture.surfaceAddress!));
 
     if (newTexture.hardwareTextureId != null) {
       // ignore: unused_local_variable
-      var renderTarget = await viewer.createRenderTarget(
+      var renderTarget = await _viewer!.createRenderTarget(
           width.toDouble(), height.toDouble(), newTexture.hardwareTextureId!);
     }
-    await viewer.updateViewportAndCameraProjection(
-        width.toDouble(), height.toDouble());
+    await _viewer!
+        .updateViewportAndCameraProjection(width.toDouble(), height.toDouble());
 
-    viewer.viewportDimensions = (width.toDouble(), height.toDouble());
+    _viewer!.viewportDimensions = (width.toDouble(), height.toDouble());
     if (wasRendering) {
-      await viewer.setRendering(true);
+      await _viewer!.setRendering(true);
     }
     _textures.add(newTexture);
     _resizing = false;
     return newTexture;
   }
-
-  @override
-  void dispose() {
-    // TODO: implement dispose
-  }
 }

thermion_flutter/thermion_flutter_ffi/pubspec.yaml

@@ -1,7 +1,7 @@
 name: thermion_flutter_ffi
 description: An FFI interface for the thermion_flutter plugin (all platforms except web).
 repository: https://github.com/nmfisher/thermion_flutter/thermion_flutter
-version: 0.0.1
+version: 0.1.0+3
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -22,8 +22,8 @@ dependencies:
   flutter:
     sdk: flutter
   plugin_platform_interface: ^2.1.0
-  thermion_flutter_platform_interface: ^0.0.1-pre
-  thermion_dart: ^0.0.1-pre2
+  thermion_flutter_platform_interface: ^0.1.0+3
+  thermion_dart: ^0.1.0+3
 
 dev_dependencies:
   flutter_test:

thermion_flutter/thermion_flutter_platform_interface/CHANGELOG.md

@@ -1,2 +1,14 @@
+## 0.1.0+3
+
+ - Update a dependency to the latest release.
+
+## 0.1.0+2
+
+ - Update a dependency to the latest release.
+
+## 0.1.0+1
+
+ - Update a dependency to the latest release.
+
 ## 0.0.1
 * First release 

thermion_flutter/thermion_flutter_platform_interface/lib/thermion_flutter_platform_interface.dart

@@ -9,8 +9,7 @@ abstract class ThermionFlutterPlatform extends PlatformInterface {
 
   static final Object _token = Object();
 
-  static late ThermionFlutterPlatform _instance;
-
+  static late final ThermionFlutterPlatform _instance;
   static ThermionFlutterPlatform get instance => _instance;
 
   static set instance(ThermionFlutterPlatform instance) {
@@ -18,9 +17,7 @@ abstract class ThermionFlutterPlatform extends PlatformInterface {
     _instance = instance;
   }
 
-  ThermionViewer get viewer;
-
-  Future initialize({String? uberArchivePath});
+  Future<ThermionViewer> createViewer({String? uberArchivePath});
 
   Future<ThermionFlutterTexture?> createTexture(
       int width, int height, int offsetLeft, int offsetRight);
@@ -30,5 +27,4 @@ abstract class ThermionFlutterPlatform extends PlatformInterface {
   Future<ThermionFlutterTexture?> resizeTexture(ThermionFlutterTexture texture,
       int width, int height, int offsetLeft, int offsetRight);
 
-  void dispose();
 }

thermion_flutter/thermion_flutter_platform_interface/pubspec.yaml

@@ -1,7 +1,7 @@
 name: thermion_flutter_platform_interface
 description: A common platform interface for the thermion_flutter plugin.
 repository: https://github.com/nmfisher/thermion_flutter/thermion_flutter
-version: 0.0.1
+version: 0.1.0+3
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -11,7 +11,7 @@ dependencies:
   flutter:
     sdk: flutter
   plugin_platform_interface: ^2.1.0
-  thermion_dart: ^0.0.1-pre2
+  thermion_dart: ^0.1.0+3
 
 dev_dependencies:
   flutter_test:

thermion_flutter/thermion_flutter_web/CHANGELOG.md

@@ -1,2 +1,14 @@
+## 0.0.1+3
+
+ - Update a dependency to the latest release.
+
+## 0.0.1+2
+
+ - Update a dependency to the latest release.
+
+## 0.0.1+1
+
+ - **REFACTOR**: export ThermionViewerWasm for web and hide FFI/WASM version.
+
 ## 0.0.1
 * First release of Dart-only package

thermion_flutter/thermion_flutter_web/lib/thermion_flutter_web.dart

@@ -1,9 +1,9 @@
+import 'package:thermion_dart/thermion_dart/compatibility/web/interop/thermion_viewer_wasm.dart';
 import 'package:thermion_dart/thermion_dart/thermion_viewer.dart';
 import 'package:thermion_flutter_platform_interface/thermion_flutter_platform_interface.dart';
 import 'package:thermion_flutter_platform_interface/thermion_flutter_texture.dart';
 import 'package:flutter_web_plugins/flutter_web_plugins.dart';
-import 'package:thermion_dart/thermion_dart/compatibility/web/interop/thermion_dart_js_extension_type.dart';
-import 'package:thermion_dart/thermion_dart/compatibility/web/interop/js_interop_filament_viewer.dart';
+import 'package:web/web.dart';
 
 class ThermionFlutterWebPlugin extends ThermionFlutterPlatform {
   static void registerWith(Registrar registrar) {
@@ -12,30 +12,31 @@ class ThermionFlutterWebPlugin extends ThermionFlutterPlatform {
 
   @override
   Future<ThermionFlutterTexture?> createTexture(
-      int width, int height, int offsetLeft, int offsetRight) async {}
-
-  @override
-  Future destroyTexture(ThermionFlutterTexture texture) async {}
-
-  @override
-  void dispose() {
-    // TODO: implement dispose
+      int width, int height, int offsetLeft, int offsetRight) async {
+    return ThermionFlutterTexture(null, null, 0, 0, null);
   }
 
   @override
-  Future initialize({String? uberArchivePath}) async {
-    print("Creating viewer in web plugin");
-    viewer = JsInteropThermionViewerFFI("filamentViewer");
-    print("Waiting for initialized");
-    await viewer.initialized;
-    print("int complete");
+  Future destroyTexture(ThermionFlutterTexture texture) async {
+    // noop
   }
 
   @override
   Future<ThermionFlutterTexture?> resizeTexture(ThermionFlutterTexture texture,
-      int width, int height, int offsetLeft, int offsetRight) async {}
+      int width, int height, int offsetLeft, int offsetRight) async {
+    return ThermionFlutterTexture(null, null, 0, 0, null);
+  }
 
-  @override
-  // TODO: implement viewer
-  late final ThermionViewer viewer;
+  Future<ThermionViewer> createViewer({String? uberArchivePath}) async {
+    final canvas = document.getElementById("canvas") as HTMLCanvasElement;
+    canvas.width = window.innerWidth;
+    canvas.height = window.innerHeight;
+
+    var width = window.innerWidth;
+    var height = window.innerHeight;
+
+    var viewer = ThermionViewerWasm();
+    await viewer.initialize(width, height, uberArchivePath: uberArchivePath);
+    return viewer;
+  }
 }

thermion_flutter/thermion_flutter_web/pubspec.yaml

@@ -1,7 +1,7 @@
 name: thermion_flutter_web
 description: A web platform interface for the thermion_flutter plugin.
 repository: https://github.com/nmfisher/thermion_flutter/thermion_flutter
-version: 0.0.1
+version: 0.0.1+3
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -20,8 +20,8 @@ dependencies:
     sdk: flutter
   plugin_platform_interface: ^2.1.0
   web: ^0.5.1
-  thermion_dart: ^0.0.1-pre
-  thermion_flutter_platform_interface: ^0.0.1-pre
+  thermion_dart: ^0.1.0+3
+  thermion_flutter_platform_interface: ^0.1.0+3
   flutter_web_plugins:
     sdk: flutter