chore(release): publish packages

- thermion_dart@0.2.1-dev.0.0.16
 - thermion_flutter@0.2.1-dev.16
 - thermion_flutter_web@0.2.0+7
 - thermion_flutter_platform_interface@0.2.1-dev.16
 - thermion_flutter_ffi@0.2.1-dev.16

CHANGELOG.md

@@ -3,6 +3,78 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## 2024-10-31
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - There are no breaking changes in this release.
+
+Packages with other changes:
+
+ - [`thermion_dart` - `v0.2.1-dev.0.0.16`](#thermion_dart---v021-dev0016)
+ - [`thermion_flutter` - `v0.2.1-dev.16`](#thermion_flutter---v021-dev16)
+ - [`thermion_flutter_web` - `v0.2.0+7`](#thermion_flutter_web---v0207)
+ - [`thermion_flutter_platform_interface` - `v0.2.1-dev.16`](#thermion_flutter_platform_interface---v021-dev16)
+ - [`thermion_flutter_ffi` - `v0.2.1-dev.16`](#thermion_flutter_ffi---v021-dev16)
+
+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` - `v0.2.1-dev.16`
+ - `thermion_flutter_web` - `v0.2.0+7`
+ - `thermion_flutter_platform_interface` - `v0.2.1-dev.16`
+ - `thermion_flutter_ffi` - `v0.2.1-dev.16`
+
+---
+
+#### `thermion_dart` - `v0.2.1-dev.0.0.16`
+
+ - **FEAT**: Rename Gizmo material to UnlitFixedSize, and expose methods for using this material on other entities. Also exposes new methods for setting single float parameters.
+
+
+## 2024-10-31
+
+### Changes
+
+---
+
+Packages with breaking changes:
+
+ - There are no breaking changes in this release.
+
+Packages with other changes:
+
+ - [`thermion_dart` - `v0.2.1-dev.0.0.15`](#thermion_dart---v021-dev0015)
+ - [`thermion_flutter` - `v0.2.1-dev.15`](#thermion_flutter---v021-dev15)
+ - [`thermion_flutter_web` - `v0.2.0+6`](#thermion_flutter_web---v0206)
+ - [`thermion_flutter_platform_interface` - `v0.2.1-dev.15`](#thermion_flutter_platform_interface---v021-dev15)
+ - [`thermion_flutter_ffi` - `v0.2.1-dev.15`](#thermion_flutter_ffi---v021-dev15)
+
+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` - `v0.2.0+6`
+ - `thermion_flutter_platform_interface` - `v0.2.1-dev.15`
+ - `thermion_flutter_ffi` - `v0.2.1-dev.15`
+
+---
+
+#### `thermion_dart` - `v0.2.1-dev.0.0.15`
+
+ - **FIX**: remove superfluous ceil() calls for picking coordinates.
+ - **FEAT**: expose zoomSensitivity argument for flight input handler.
+
+#### `thermion_flutter` - `v0.2.1-dev.15`
+
+ - **FIX**: multiply coordinates by pixelRatio for scale events.
+
+
 ## 2024-10-30
 
 ### Changes

Makefile

@@ -23,7 +23,7 @@ bindings:
 # 
 materials: FORCE
 	@echo "Using Filament build from ${FILAMENT_PATH}"
-	@for material in unlit image gizmo grid; do \
+	@for material in unlit image unlit_fixed_size grid; do \
 		${FILAMENT_PATH}/matc -a opengl -a metal -o materials/$$material.filamat materials/$$material.mat; \
 		$(FILAMENT_PATH)/resgen -c -p $$material -x thermion_dart/native/include/material/ materials/$$material.filamat; \
 		echo '#include "'$$material'.h"' | cat - thermion_dart/native/include/material/$$material.c > thermion_dart/native/include/material/$$material.c.new; \

README.md

@@ -3,7 +3,7 @@
 <p align="center">
   <a href="https://thermion.dev/quickstart">Quickstart (Flutter)</a> •
   <a href="https://thermion.dev/">Documentation</a> •
-  <a href="https://thermion.dev/examples">Showcase</a> •
+  <a href="https://thermion.dev/showcase">Showcase</a> •
   <a href="https://dartpad.thermion.dev/">Playground</a> •
   <a href="https://discord.gg/h2VdDK3EAQ">Discord</a>
 </p>
@@ -24,13 +24,17 @@
 
 ### Quickstart (Flutter)
 
-```
+From the command line:
+
+```bash
 flutter channel master
 flutter upgrade
 flutter config --enable-native-assets  
 ```
 
-```
+In your Flutter app:
+
+```dart
 _thermionViewer = await ThermionFlutterPlugin.createViewer();
 
 // Geometry and models are represented as "entities". Here, we load a glTF
@@ -61,8 +65,8 @@ await _thermionViewer!.loadIbl("assets/default_env_ibl.ktx");
 await _thermionViewer!.setRendering(true);
 ```
 
-and then in your Flutter application:
-```
+and then in your widget tree:
+```dart
  @override
   Widget build(BuildContext context) {
     return Stack(children: [

examples/flutter/camera_manipulation/assets

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

examples/flutter/camera_manipulation/assets/cube.glb

@@ -1 +0,0 @@
-../../../assets/cube.glb

examples/flutter/camera_manipulation/assets/default_env_ibl.ktx

@@ -1 +0,0 @@
-../../../assets/default_env_ibl.ktx

examples/flutter/camera_manipulation/assets/default_env_skybox.ktx

@@ -1 +0,0 @@
-../../../assets/default_env_skybox.ktx

examples/flutter/quickstart/assets

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

examples/flutter/quickstart/assets/cube.glb

@@ -1 +0,0 @@
-../../../assets/cube.glb

examples/flutter/quickstart/assets/default_env_ibl.ktx

@@ -1 +0,0 @@
-../../../assets/default_env_ibl.ktx

examples/flutter/quickstart/assets/default_env_skybox.ktx

@@ -1 +0,0 @@
-../../../assets/default_env_skybox.ktx

materials/unlit_fixed_size.mat

@@ -1,5 +1,5 @@
     material {
-        name : Gizmo,
+        name : UnlitFixedSize,
         parameters : [
             {
                 type : mat4,
@@ -8,8 +8,13 @@
             },
             {
                 type : float4,
-                name : color,
+                name : baseColorFactor,
                 precision : low
+            },
+            {
+                type: float, // the number of world-space units between the camera and the (unscaled) gizmo
+                name: scale,
+                precision: low
             }
         ],
         depthWrite : true,
@@ -24,14 +29,13 @@
 
     vertex {
         void materialVertex(inout MaterialVertexInputs material) {	
-
-            // we want to ensure the gizmo has the same size (in screen-space), no matter the distance from the camera
-            // we do this by scaling the model-space vertex positions by the distance from the camera
+            // the object should have the same size (in screen-space), no matter the distance from the camera
+            // scale the model-space vertex positions by the distance from the camera
             vec4 modelSpace = getPosition();
             vec4 worldSpace = getWorldFromModelMatrix() * modelSpace;
             vec4 viewSpace = getViewFromWorldMatrix() * worldSpace;           
             float distanceFromCamera = length(viewSpace.xyz);
-            modelSpace.xyz *= (distanceFromCamera / 4.0f); // divide by 4 so that the size is equivalent to the camera being 4 world-space units away from the (unscaled) gizmo
+            modelSpace.xyz *= (distanceFromCamera / materialParams.scale); 
 
             worldSpace = getWorldFromModelMatrix() * modelSpace;
             material.worldPosition = worldSpace;
@@ -44,7 +48,7 @@
     fragment {
         void material(inout MaterialInputs material) {
             prepareMaterial(material);
-            material.baseColor = materialParams.color;
+            material.baseColor = materialParams.baseColorFactor;
         }
     }
 

thermion_dart/CHANGELOG.md

@@ -1,3 +1,12 @@
+## 0.2.1-dev.0.0.16
+
+ - **FEAT**: Rename Gizmo material to UnlitFixedSize, and expose methods for using this material on other entities. Also exposes new methods for setting single float parameters.
+
+## 0.2.1-dev.0.0.15
+
+ - **FIX**: remove superfluous ceil() calls for picking coordinates.
+ - **FEAT**: expose zoomSensitivity argument for flight input handler.
+
 ## 0.2.1-dev.0.0.14
 
  - **FIX**: reduce size of pick functor for compatibility with armeabi-v7a.

thermion_dart/README.md

@@ -3,7 +3,7 @@
 <p align="center">
   <a href="https://thermion.dev/quickstart">Quickstart (Flutter)</a> •
   <a href="https://thermion.dev/quickstart">Documentation</a> •
-  <a href="https://thermion.dev/examples">Showcase</a> •
+  <a href="https://thermion.dev/showcase">Showcase</a> •
   <a href="https://dartpad.thermion.dev/">Playground</a> •
   <a href="https://discord.gg/h2VdDK3EAQ">Discord</a>
 </p>

thermion_dart/hook/build.dart

@@ -60,7 +60,7 @@ void main(List<String> args) async {
         .map((f) => f.path)
         .toList();
     sources.addAll([
-      path.join(pkgRootFilePath, "native", "include", "material", "gizmo_material.c"),
+      path.join(pkgRootFilePath, "native", "include", "material", "unlit_fixed_size.c"),
       path.join(pkgRootFilePath, "native", "include", "material", "image.c"),
       path.join(pkgRootFilePath, "native", "include", "material", "grid.c"),
       path.join(pkgRootFilePath, "native", "include", "material", "unlit.c"),

thermion_dart/lib/src/input/src/delegate_input_handler.dart

@@ -82,6 +82,7 @@ class DelegateInputHandler implements InputHandler {
           {PickDelegate? pickDelegate,
           bool freeLook = false,
           double panSensitivity = 0.1,
+          double zoomSensitivity = 0.1,
           double movementSensitivity = 0.1,
           double rotateSensitivity = 0.01,
           double? clampY,
@@ -93,6 +94,7 @@ class DelegateInputHandler implements InputHandler {
               clampY: clampY,
               entity: entity,
               rotationSensitivity: rotateSensitivity,
+              zoomSensitivity:zoomSensitivity,
               panSensitivity: panSensitivity,
               movementSensitivity: movementSensitivity),
           actions: {

thermion_dart/lib/src/viewer/src/ffi/src/thermion_dart.g.dart

@@ -621,6 +621,15 @@ external int get_bone(
   int boneIndex,
 );
 
+@ffi.Native<
+    ffi.Pointer<TGizmo> Function(ffi.Pointer<TSceneManager>, ffi.Pointer<TView>,
+        ffi.Pointer<TScene>)>(isLeaf: true)
+external ffi.Pointer<TGizmo> SceneManager_createGizmo(
+  ffi.Pointer<TSceneManager> tSceneManager,
+  ffi.Pointer<TView> tView,
+  ffi.Pointer<TScene> tScene,
+);
+
 @ffi.Native<
     EntityId Function(
         ffi.Pointer<TSceneManager>,
@@ -658,6 +667,14 @@ external ffi.Pointer<TMaterialInstance>
   ffi.Pointer<TSceneManager> sceneManager,
 );
 
+@ffi.Native<
+    ffi.Pointer<TMaterialInstance> Function(
+        ffi.Pointer<TSceneManager>)>(isLeaf: true)
+external ffi.Pointer<TMaterialInstance>
+    SceneManager_createUnlitFixedSizeMaterialInstance(
+  ffi.Pointer<TSceneManager> sceneManager,
+);
+
 @ffi.Native<
     ffi.Bool Function(ffi.Pointer<TSceneManager>, EntityId,
         ffi.Pointer<ffi.Double>)>(isLeaf: true)
@@ -1206,6 +1223,15 @@ external void MaterialInstance_setParameterFloat2(
   double y,
 );
 
+@ffi.Native<
+    ffi.Void Function(ffi.Pointer<TMaterialInstance>, ffi.Pointer<ffi.Char>,
+        ffi.Double)>(isLeaf: true)
+external void MaterialInstance_setParameterFloat(
+  ffi.Pointer<TMaterialInstance> materialInstance,
+  ffi.Pointer<ffi.Char> name,
+  double value,
+);
+
 @ffi.Native<TViewport Function(ffi.Pointer<TView>)>(isLeaf: true)
 external TViewport View_getViewport(
   ffi.Pointer<TView> view,
@@ -1608,6 +1634,20 @@ external void SceneManager_createUnlitMaterialInstanceRenderThread(
       callback,
 );
 
+@ffi.Native<
+    ffi.Void Function(
+        ffi.Pointer<TSceneManager>,
+        ffi.Pointer<
+            ffi.NativeFunction<
+                ffi.Void Function(
+                    ffi.Pointer<TMaterialInstance>)>>)>(isLeaf: true)
+external void SceneManager_createUnlitFixedSizeMaterialInstanceRenderThread(
+  ffi.Pointer<TSceneManager> sceneManager,
+  ffi.Pointer<
+          ffi.NativeFunction<ffi.Void Function(ffi.Pointer<TMaterialInstance>)>>
+      callback,
+);
+
 @ffi.Native<
         ffi.Void Function(
             ffi.Pointer<TSceneManager>,
@@ -2028,15 +2068,6 @@ void Camera_setProjection(
       far,
     );
 
-@ffi.Native<
-    ffi.Pointer<TGizmo> Function(ffi.Pointer<TEngine>, ffi.Pointer<TView>,
-        ffi.Pointer<TScene>)>(isLeaf: true)
-external ffi.Pointer<TGizmo> Gizmo_new(
-  ffi.Pointer<TEngine> tEngine,
-  ffi.Pointer<TView> tView,
-  ffi.Pointer<TScene> tScene,
-);
-
 @ffi.Native<
     ffi.Void Function(ffi.Pointer<TGizmo>, ffi.Uint32, ffi.Uint32,
         GizmoPickCallback)>(isLeaf: true)

thermion_dart/lib/src/viewer/src/ffi/src/thermion_viewer_ffi.dart

@@ -1514,7 +1514,7 @@ class ThermionViewerFFI extends ThermionViewer {
     final viewport = await view.getViewport();
 
     _pickResultController
-        .add((entity: entityId, x: x.ceil(), y: (viewport.height - y).ceil(), depth: depth, fragX: fragX, fragY: viewport.height - fragY, fragZ: fragZ ));
+        .add((entity: entityId, x: x, y: (viewport.height - y), depth: depth, fragX: fragX, fragY: viewport.height - fragY, fragZ: fragZ ));
   }
 
   late NativeCallable<
@@ -1528,7 +1528,7 @@ class ThermionViewerFFI extends ThermionViewer {
   Future pick(int x, int y) async {
     final view = (await getViewAt(0)) as FFIView;
     var viewport = await view.getViewport();
-    y = (viewport.height - y).ceil();
+    y = viewport.height - y;
     Viewer_pick(
         _viewer!, view.view, x, y, _onPickResultCallable.nativeFunction);
   }
@@ -2035,6 +2035,9 @@ class ThermionViewerFFI extends ThermionViewer {
     destroy_material_instance(_sceneManager!, materialInstance._pointer);
   }
 
+  ///
+  ///
+  ///
   Future<ThermionFFIMaterialInstance> createUnlitMaterialInstance() async {
     var instance = await withPointerCallback<TMaterialInstance>((cb) {
       SceneManager_createUnlitMaterialInstanceRenderThread(_sceneManager!, cb);
@@ -2045,6 +2048,19 @@ class ThermionViewerFFI extends ThermionViewer {
     return ThermionFFIMaterialInstance(instance);
   }
 
+  ///
+  ///
+  ///
+  Future<ThermionFFIMaterialInstance> createUnlitFixedSizeMaterialInstance() async {
+    var instance = await withPointerCallback<TMaterialInstance>((cb) {
+      SceneManager_createUnlitFixedSizeMaterialInstanceRenderThread(_sceneManager!, cb);
+    });
+    if (instance == nullptr) {
+      throw Exception("Failed to create material instance");
+    }
+    return ThermionFFIMaterialInstance(instance);
+  }
+
   @override
   Future setMaterialPropertyInt(ThermionEntity entity, String propertyName,
       int materialIndex, int value) {
@@ -2163,7 +2179,7 @@ class ThermionViewerFFI extends ThermionViewer {
   Future<Gizmo> createGizmo(FFIView view) async {
     var view = (await getViewAt(0)) as FFIView;
     var scene = View_getScene(view.view);
-    final gizmo = Gizmo_new(Viewer_getEngine(_viewer!), view.view, scene);
+    final gizmo = SceneManager_createGizmo(_sceneManager!, view.view, scene);
     return FFIGizmo(gizmo, this);
   }
 }
@@ -2194,6 +2210,12 @@ class ThermionFFIMaterialInstance extends MaterialInstance {
     MaterialInstance_setParameterFloat2(
         _pointer, name.toNativeUtf8().cast<Char>(), x, y);
   }
+
+  @override
+  Future setParameterFloat(String name, double value) async {
+    MaterialInstance_setParameterFloat(
+        _pointer, name.toNativeUtf8().cast<Char>(), value);
+  }
 }
 
 class FFIRenderTarget extends RenderTarget {

thermion_dart/lib/src/viewer/src/shared_types/material.dart

@@ -2,6 +2,7 @@ abstract class MaterialInstance {
   Future setDepthWriteEnabled(bool enabled);
   Future setDepthCullingEnabled(bool enabled);
   Future setParameterFloat2(String name, double x, double y);
+  Future setParameterFloat(String name, double x);
 }
 
 enum AlphaMode { OPAQUE, MASK, BLEND }

thermion_dart/lib/src/viewer/src/thermion_viewer_base.dart

@@ -895,6 +895,11 @@ abstract class ThermionViewer {
   ///
   Future<MaterialInstance> createUnlitMaterialInstance();
 
+  ///
+  ///
+  ///
+  Future<MaterialInstance> createUnlitFixedSizeMaterialInstance();
+
   ///
   ///
   ///

thermion_dart/lib/src/viewer/src/web_wasm/src/material_instance.dart

@@ -21,4 +21,10 @@ class ThermionWasmMaterialInstance extends MaterialInstance {
     // TODO: implement setParameterFloat2
     throw UnimplementedError();
   }
+  
+  @override
+  Future setParameterFloat(String name, double x) {
+    // TODO: implement setParameterFloat
+    throw UnimplementedError();
+  }
 }

thermion_dart/native/include/Gizmo.hpp

@@ -17,8 +17,6 @@
 #include <filament/IndexBuffer.h>
 #include <filament/InstanceBuffer.h>
 
-#include "material/gizmo.h"
-
 #include "ThermionDartApi.h"
 
 namespace thermion {
@@ -31,7 +29,7 @@ class Gizmo {
     enum Axis { X, Y, Z};
     
     public:
-        Gizmo(Engine *engine, View *view, Scene *scene);
+        Gizmo(Engine *engine, View *view, Scene *scene, Material* material);
         ~Gizmo();
 
         typedef void (*PickCallback)(EntityId entityId, uint32_t x, uint32_t y, View *view);
@@ -91,8 +89,10 @@ class Gizmo {
         Engine *_engine;
         Scene *_scene;
         View *_view;
-        utils::Entity _entities[7] = { utils::Entity(), utils::Entity(), utils::Entity(), utils::Entity(), utils::Entity(), utils::Entity(), utils::Entity() };
         Material* _material;
+        
+        utils::Entity _entities[7] = { utils::Entity(), utils::Entity(), utils::Entity(), utils::Entity(), utils::Entity(), utils::Entity(), utils::Entity() };
+        
         MaterialInstance* _materialInstances[7];
         math::float4 inactiveColors[3] {
             math::float4 { 1.0f, 0.0f, 0.0f, 0.5f },

thermion_dart/native/include/GridOverlay.hpp

@@ -19,9 +19,6 @@
 #include <filament/IndexBuffer.h>
 #include <filament/InstanceBuffer.h>
 
-#include "material/gizmo.h"
-
-
 namespace thermion {
 
 using namespace filament;

thermion_dart/native/include/SceneManager.hpp

@@ -19,16 +19,17 @@
 #include <filament/InstanceBuffer.h>
 #include <utils/NameComponentManager.h>
 
-#include "CustomGeometry.hpp"
+#include "tsl/robin_map.h"
+
 
 #include "APIBoundaryTypes.h"
+#include "CustomGeometry.hpp"
+#include "Gizmo.hpp"
 #include "GridOverlay.hpp"
 #include "ResourceBuffer.hpp"
 #include "components/CollisionComponentManager.hpp"
 #include "components/AnimationComponentManager.hpp"
 
-#include "tsl/robin_map.h"
-
 
 namespace thermion
 {
@@ -287,6 +288,8 @@ namespace thermion
             return _ubershaderProvider;
         }
 
+        MaterialInstance* createUnlitFixedSizeMaterialInstance();
+
         MaterialInstance* createUnlitMaterialInstance();
 
         void setVisibilityLayer(EntityId entityId, int layer);
@@ -298,6 +301,8 @@ namespace thermion
         size_t getCameraCount();
 
         Camera* getCameraAt(size_t index);
+        
+        Gizmo *createGizmo(View *view, Scene *scene);
 
         bool isGizmoEntity(utils::Entity entity);
 
@@ -321,6 +326,8 @@ namespace thermion
         std::mutex _stencilMutex;
         std::vector<MaterialInstance*> _materialInstances;
 
+        Material* _gizmoMaterial = nullptr;
+
         utils::NameComponentManager *_ncm;
 
         tsl::robin_map<

thermion_dart/native/include/TGizmo.h

@@ -10,7 +10,6 @@ extern "C"
 
 typedef void (*GizmoPickCallback)(EntityId entityId, uint32_t x, uint32_t y, TView* view);
 
-EMSCRIPTEN_KEEPALIVE TGizmo* Gizmo_new(TEngine *tEngine, TView *tView, TScene *tScene);
 EMSCRIPTEN_KEEPALIVE void Gizmo_pick(TGizmo *tGizmo, uint32_t x, uint32_t y, GizmoPickCallback callback);
 EMSCRIPTEN_KEEPALIVE void Gizmo_setVisibility(TGizmo *tGizmo, bool visible);
 

thermion_dart/native/include/ThermionDartApi.h

@@ -198,6 +198,7 @@ extern "C"
 										   int skinIndex,
 										   int boneIndex);
 	
+	EMSCRIPTEN_KEEPALIVE TGizmo* SceneManager_createGizmo(TSceneManager *tSceneManager, TView *tView, TScene *tScene);
 	EMSCRIPTEN_KEEPALIVE EntityId SceneManager_createGeometry(
 		TSceneManager *sceneManager, 
 		float *vertices, 
@@ -212,6 +213,7 @@ extern "C"
 		TMaterialInstance *materialInstance, 
 		bool keepData);
 	EMSCRIPTEN_KEEPALIVE TMaterialInstance *SceneManager_createUnlitMaterialInstance(TSceneManager *sceneManager);
+	EMSCRIPTEN_KEEPALIVE TMaterialInstance *SceneManager_createUnlitFixedSizeMaterialInstance(TSceneManager *sceneManager);
 	EMSCRIPTEN_KEEPALIVE bool SceneManager_setTransform(TSceneManager *sceneManager, EntityId entityId, const double *const transform);
 	EMSCRIPTEN_KEEPALIVE void SceneManager_queueTransformUpdates(TSceneManager *sceneManager, EntityId* entities, const double* const transforms, int numEntities);
 	EMSCRIPTEN_KEEPALIVE TCamera* SceneManager_findCameraByName(TSceneManager* tSceneManager, EntityId entity, const char* name);
@@ -295,6 +297,7 @@ extern "C"
 	EMSCRIPTEN_KEEPALIVE void MaterialInstance_setDepthWrite(TMaterialInstance* materialInstance, bool enabled);
 	EMSCRIPTEN_KEEPALIVE void MaterialInstance_setDepthCulling(TMaterialInstance* materialInstance, bool enabled);
 	EMSCRIPTEN_KEEPALIVE void MaterialInstance_setParameterFloat2(TMaterialInstance* materialInstance, const char* name, double x, double y);
+	EMSCRIPTEN_KEEPALIVE void MaterialInstance_setParameterFloat(TMaterialInstance* materialInstance, const char* name, double value);
 
 
 #ifdef __cplusplus

thermion_dart/native/include/ThermionDartRenderThreadApi.h

@@ -67,6 +67,7 @@ extern "C"
         void (*callback)(EntityId));
     EMSCRIPTEN_KEEPALIVE void SceneManager_loadGlbFromBufferRenderThread(TSceneManager *sceneManager, const uint8_t *const data, size_t length, int numInstances, bool keepData, int priority, int layer, bool loadResourcesAsync, void (*callback)(EntityId));
     EMSCRIPTEN_KEEPALIVE void SceneManager_createUnlitMaterialInstanceRenderThread(TSceneManager *sceneManager, void (*callback)(TMaterialInstance*));
+    EMSCRIPTEN_KEEPALIVE void SceneManager_createUnlitFixedSizeMaterialInstanceRenderThread(TSceneManager *sceneManager, void (*callback)(TMaterialInstance*));
     EMSCRIPTEN_KEEPALIVE void load_glb_render_thread(TSceneManager *sceneManager, const char *assetPath, int numInstances, bool keepData, void (*callback)(EntityId));
     EMSCRIPTEN_KEEPALIVE void load_gltf_render_thread(TSceneManager *sceneManager, const char *assetPath, const char *relativePath, bool keepData, void (*callback)(EntityId));
     EMSCRIPTEN_KEEPALIVE void create_instance_render_thread(TSceneManager *sceneManager, EntityId entityId, void (*callback)(EntityId));

thermion_dart/native/include/material/gizmo.S

@@ -1,12 +0,0 @@
-    .global GIZMO_GIZMO_OFFSET;
-    .global GIZMO_GIZMO_SIZE;
-
-    .global GIZMO_PACKAGE
-    .section .rodata
-GIZMO_PACKAGE:
-    .incbin "gizmo.bin"
-GIZMO_GIZMO_OFFSET:
-    .int 0
-GIZMO_GIZMO_SIZE:
-    .int 27809
-

thermion_dart/native/include/material/gizmo.apple.S

@@ -1,12 +0,0 @@
-    .global _GIZMO_GIZMO_OFFSET;
-    .global _GIZMO_GIZMO_SIZE;
-
-    .global _GIZMO_PACKAGE
-    .section __TEXT,__const
-_GIZMO_PACKAGE:
-    .incbin "gizmo.bin"
-_GIZMO_GIZMO_OFFSET:
-    .int 0
-_GIZMO_GIZMO_SIZE:
-    .int 27809
-

thermion_dart/native/include/material/gizmo.h

@@ -1,13 +0,0 @@
-#ifndef GIZMO_H_
-#define GIZMO_H_
-
-#include <stdint.h>
-
-extern "C" {
-    extern const uint8_t GIZMO_PACKAGE[];
-    extern int GIZMO_GIZMO_OFFSET;
-    extern int GIZMO_GIZMO_SIZE;
-}
-#define GIZMO_GIZMO_DATA (GIZMO_PACKAGE + GIZMO_GIZMO_OFFSET)
-
-#endif

thermion_dart/native/include/material/unlit_fixed_size.S

@@ -0,0 +1,12 @@
+    .global UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_OFFSET;
+    .global UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_SIZE;
+
+    .global UNLIT_FIXED_SIZE_PACKAGE
+    .section .rodata
+UNLIT_FIXED_SIZE_PACKAGE:
+    .incbin "unlit_fixed_size.bin"
+UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_OFFSET:
+    .int 0
+UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_SIZE:
+    .int 28235
+

thermion_dart/native/include/material/unlit_fixed_size.apple.S

@@ -0,0 +1,12 @@
+    .global _UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_OFFSET;
+    .global _UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_SIZE;
+
+    .global _UNLIT_FIXED_SIZE_PACKAGE
+    .section __TEXT,__const
+_UNLIT_FIXED_SIZE_PACKAGE:
+    .incbin "unlit_fixed_size.bin"
+_UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_OFFSET:
+    .int 0
+_UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_SIZE:
+    .int 28235
+

thermion_dart/native/include/material/unlit_fixed_size.h

@@ -0,0 +1,13 @@
+#ifndef UNLIT_FIXED_SIZE_H_
+#define UNLIT_FIXED_SIZE_H_
+
+#include <stdint.h>
+
+extern "C" {
+    extern const uint8_t UNLIT_FIXED_SIZE_PACKAGE[];
+    extern int UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_OFFSET;
+    extern int UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_SIZE;
+}
+#define UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_DATA (UNLIT_FIXED_SIZE_PACKAGE + UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_OFFSET)
+
+#endif

thermion_dart/native/src/Gizmo.cpp

@@ -7,31 +7,26 @@
 #include <filament/TransformManager.h>
 #include <gltfio/math.h>
 #include "SceneManager.hpp"
-#include "material/gizmo.h"
+#include "material/unlit_fixed_size.h"
 #include "Log.hpp"
 
 namespace thermion {
 
 using namespace filament::gltfio;
 
-Gizmo::Gizmo(Engine *engine, View *view, Scene* scene) : _engine(engine), _view(view), _scene(scene)
+Gizmo::Gizmo(Engine *engine, View *view, Scene* scene, Material* material) : _engine(engine), _view(view), _scene(scene), _material(material)
 {
         
     auto &entityManager = EntityManager::get();
 
     auto &transformManager = _engine->getTransformManager();
 
-    _material =
-        Material::Builder()
-            .package(GIZMO_GIZMO_DATA, GIZMO_GIZMO_SIZE)
-            .build(*_engine);
-
     // First, create the black cube at the center
     // The axes widgets will be parented to this entity 
     _entities[3] = entityManager.create();
 
     _materialInstances[3] = _material->createInstance();
-    _materialInstances[3]->setParameter("color", math::float4{0.0f, 0.0f, 0.0f, 1.0f}); // Black color
+    _materialInstances[3]->setParameter("baseColorFactor", math::float4{0.0f, 0.0f, 0.0f, 1.0f}); // Black color
 
     // Create center cube vertices
     float centerCubeSize = 0.01f;
@@ -160,7 +155,7 @@ Gizmo::Gizmo(Engine *engine, View *view, Scene* scene) : _engine(engine), _view(
             break;
         }
 
-        _materialInstances[i]->setParameter("color", baseColor);
+        _materialInstances[i]->setParameter("baseColorFactor", baseColor);
 
         RenderableManager::Builder(1)
              .boundingBox({{-arrowWidth, -arrowWidth, 0}, 

thermion_dart/native/src/SceneManager.cpp

@@ -33,9 +33,12 @@
 #include "CustomGeometry.hpp"
 #include "UnprojectTexture.hpp"
 
+#include "Gizmo.hpp"
+
 extern "C"
 {
 #include "material/image.h"
+#include "material/unlit_fixed_size.h"
 }
 
 namespace thermion
@@ -52,9 +55,8 @@ namespace thermion
                                Engine *engine,
                                Scene *scene,
                                const char *uberArchivePath,
-                                Camera *mainCamera)
-        : 
-          _resourceLoaderWrapper(resourceLoaderWrapper),
+                               Camera *mainCamera)
+        : _resourceLoaderWrapper(resourceLoaderWrapper),
           _engine(engine),
           _scene(scene),
           _mainCamera(mainCamera)
@@ -103,17 +105,22 @@ namespace thermion
         _scene->addEntity(_gridOverlay->sphere());
         _scene->addEntity(_gridOverlay->grid());
 
+        _gizmoMaterial =
+            Material::Builder()
+                .package(UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_DATA, UNLIT_FIXED_SIZE_UNLIT_FIXED_SIZE_SIZE)
+                .build(*_engine);
     }
 
     SceneManager::~SceneManager()
     {
-        for(auto camera : _cameras) {
+        for (auto camera : _cameras)
+        {
             auto entity = camera->getEntity();
             _engine->destroyCameraComponent(entity);
             _engine->getEntityManager().destroy(entity);
         }
         _cameras.clear();
-        
+
         _gridOverlay->destroy();
         destroyAll();
 
@@ -131,8 +138,14 @@ namespace thermion
         AssetLoader::destroy(&_assetLoader);
     }
 
-    bool SceneManager::isGizmoEntity(Entity entity) {
-        return false; // TODO    
+    Gizmo *SceneManager::createGizmo(View *view, Scene *scene)
+    {
+        return new Gizmo(_engine, view, scene, _gizmoMaterial);
+    }
+
+    bool SceneManager::isGizmoEntity(Entity entity)
+    {
+        return false; // TODO
     }
 
     int SceneManager::getInstanceCount(EntityId entityId)
@@ -246,15 +259,16 @@ namespace thermion
         return eid;
     }
 
-    void SceneManager::setVisibilityLayer(EntityId entityId, int layer) {
-        auto& rm = _engine->getRenderableManager();
+    void SceneManager::setVisibilityLayer(EntityId entityId, int layer)
+    {
+        auto &rm = _engine->getRenderableManager();
         auto renderable = rm.getInstance(utils::Entity::import(entityId));
-        if(!renderable.isValid()) {
+        if (!renderable.isValid())
+        {
             Log("Warning: no renderable found");
         }
 
         rm.setLayerMask(renderable, 0xFF, 1u << layer);
-
     }
 
     EntityId SceneManager::loadGlbFromBuffer(const uint8_t *data, size_t length, int numInstances, bool keepData, int priority, int layer, bool loadResourcesAsync)
@@ -281,11 +295,13 @@ namespace thermion
 
         _scene->addEntities(asset->getEntities(), entityCount);
 
-        auto & rm = _engine->getRenderableManager();
+        auto &rm = _engine->getRenderableManager();
 
-        for(int i=0; i < entityCount; i++) {
+        for (int i = 0; i < entityCount; i++)
+        {
             auto instance = rm.getInstance(asset->getEntities()[i]);
-            if(!instance.isValid()) {
+            if (!instance.isValid())
+            {
                 Log("No valid renderable for entity");
                 continue;
             }
@@ -304,13 +320,16 @@ namespace thermion
             _gltfResourceLoader->asyncUpdateLoad();
         }
 #else
-        if(loadResourcesAsync) {
+        if (loadResourcesAsync)
+        {
             if (!_gltfResourceLoader->asyncBeginLoad(asset))
             {
                 Log("Unknown error loading glb asset");
                 return 0;
             }
-        } else {
+        }
+        else
+        {
             if (!_gltfResourceLoader->loadResources(asset))
             {
                 Log("Unknown error loading glb asset");
@@ -539,11 +558,13 @@ namespace thermion
                                    asset.second->getLightEntityCount());
             _assetLoader->destroyAsset(asset.second);
         }
-        for(auto *texture : _textures) {
+        for (auto *texture : _textures)
+        {
             _engine->destroy(texture);
         }
 
-        for(auto *materialInstance : _materialInstances) {
+        for (auto *materialInstance : _materialInstances)
+        {
             _engine->destroy(materialInstance);
         }
 
@@ -661,7 +682,6 @@ namespace thermion
 
         auto entity = Entity::import(entityId);
 
-
         if (_animationComponentManager->hasComponent(entity))
         {
             _animationComponentManager->removeComponent(entity);
@@ -674,7 +694,8 @@ namespace thermion
 
         _scene->remove(entity);
 
-        if(isGeometryEntity(entityId)) {
+        if (isGeometryEntity(entityId))
+        {
             return;
         }
 
@@ -1412,7 +1433,7 @@ namespace thermion
         return texture;
     }
 
-    bool SceneManager::applyTexture(EntityId entityId, Texture *texture, const char* parameterName, int materialIndex)
+    bool SceneManager::applyTexture(EntityId entityId, Texture *texture, const char *parameterName, int materialIndex)
     {
         auto entity = Entity::import(entityId);
 
@@ -1446,10 +1467,12 @@ namespace thermion
         return true;
     }
 
-    void SceneManager::destroyTexture(Texture* texture) {
-        if(_textures.find(texture) == _textures.end()) {
+    void SceneManager::destroyTexture(Texture *texture)
+    {
+        if (_textures.find(texture) == _textures.end())
+        {
             Log("Warning: couldn't find texture");
-        } 
+        }
         _textures.erase(texture);
         _engine->destroy(texture);
     }
@@ -1904,7 +1927,7 @@ namespace thermion
         tm.setTransform(transformInstance, newTransform);
     }
 
-    void SceneManager::queueRelativePositionUpdateFromViewportVector(View* view, EntityId entityId, float viewportCoordX, float viewportCoordY)
+    void SceneManager::queueRelativePositionUpdateFromViewportVector(View *view, EntityId entityId, float viewportCoordX, float viewportCoordY)
     {
         // Get the camera and viewport
         const auto &camera = view->getCamera();
@@ -1941,14 +1964,14 @@ namespace thermion
         auto entityPlaneInWorldSpace = camera.getModelMatrix() * entityPlaneInCameraSpace;
 
         // Queue the position update (as a relative movement)
-        
     }
-    
-    void SceneManager::queueTransformUpdates(EntityId* entities, math::mat4* transforms, int numEntities)
+
+    void SceneManager::queueTransformUpdates(EntityId *entities, math::mat4 *transforms, int numEntities)
     {
         std::lock_guard lock(_mutex);
 
-        for(int i= 0; i < numEntities; i++) {
+        for (int i = 0; i < numEntities; i++)
+        {
             auto entity = entities[i];
             const auto &pos = _transformUpdates.find(entity);
             if (pos == _transformUpdates.end())
@@ -2279,112 +2302,117 @@ namespace thermion
         }
     }
 
-EntityId SceneManager::createGeometry(
-    float *vertices,
-    uint32_t numVertices,
-    float *normals,
-    uint32_t numNormals,
-    float *uvs,
-    uint32_t numUvs,
-    uint16_t *indices,
-    uint32_t numIndices,
-    filament::RenderableManager::PrimitiveType primitiveType,
-    filament::MaterialInstance* materialInstance,
-    bool keepData)
-{
-    auto geometry = std::make_unique<CustomGeometry>(vertices, numVertices, normals, numNormals, uvs, numUvs, indices, numIndices, primitiveType, _engine);
-
-    auto entity = utils::EntityManager::get().create();
-    RenderableManager::Builder builder(1);
-
-    builder.boundingBox(geometry->getBoundingBox())
-        .geometry(0, primitiveType, geometry->vertexBuffer(), geometry->indexBuffer(), 0, numIndices)
-        .culling(true)
-        .receiveShadows(true)
-        .castShadows(true);
-
-    filament::Material *mat = nullptr;
-    
-    if (!materialInstance) {
-        Log("Using default ubershader material");
-        filament::gltfio::MaterialKey config;
-
-        memset(&config, 0, sizeof(config));  // Initialize all bits to zero
-
-        config.unlit = false;
-        config.doubleSided = false;
-        config.useSpecularGlossiness = false;
-        config.alphaMode = filament::gltfio::AlphaMode::OPAQUE;
-        config.hasBaseColorTexture = numUvs > 0;
-        config.hasClearCoat = false;
-        config.hasClearCoatNormalTexture = false;
-        config.hasClearCoatRoughnessTexture = false;
-        config.hasEmissiveTexture = false;
-        config.hasIOR = false;
-        config.hasMetallicRoughnessTexture = false;
-        config.hasNormalTexture = false;
-        config.hasOcclusionTexture = false;
-        config.hasSheen = false;
-        config.hasSheenColorTexture = false;
-        config.hasSheenRoughnessTexture = false;
-        config.hasSpecularGlossinessTexture = false;
-        config.hasTextureTransforms = false;
-        config.hasTransmission = false;
-        config.hasTransmissionTexture = false;
-        config.hasVolume = false;
-        config.hasVolumeThicknessTexture = false;
-        config.baseColorUV = 0;
-        config.hasVertexColors = false;
-        config.hasVolume = false;
-        
-        materialInstance = createUbershaderMaterialInstance(config); 
-
-        if(!materialInstance) { 
-            Log("Failed to create material instance");
-            return Entity::smuggle(Entity());
-        }
-    }    
-
-    // Set up texture and sampler if UVs are available
-    if (uvs != nullptr && numUvs > 0)
+    EntityId SceneManager::createGeometry(
+        float *vertices,
+        uint32_t numVertices,
+        float *normals,
+        uint32_t numNormals,
+        float *uvs,
+        uint32_t numUvs,
+        uint16_t *indices,
+        uint32_t numIndices,
+        filament::RenderableManager::PrimitiveType primitiveType,
+        filament::MaterialInstance *materialInstance,
+        bool keepData)
     {
-        // Create a default white texture
-        static constexpr uint32_t textureSize = 1;
-        static constexpr uint32_t white = 0x00ffffff;
-        Texture* texture = Texture::Builder()
-            .width(textureSize)
-            .height(textureSize)
-            .levels(1)
-            .format(Texture::InternalFormat::RGBA8)
-            .build(*_engine);
+        auto geometry = std::make_unique<CustomGeometry>(vertices, numVertices, normals, numNormals, uvs, numUvs, indices, numIndices, primitiveType, _engine);
 
-        _textures.insert(texture);
-       
-        filament::backend::PixelBufferDescriptor pbd(&white, 4, Texture::Format::RGBA, Texture::Type::UBYTE);
-        texture->setImage(*_engine, 0, std::move(pbd));
+        auto entity = utils::EntityManager::get().create();
+        RenderableManager::Builder builder(1);
 
-        // Create a sampler
-        TextureSampler sampler(TextureSampler::MinFilter::NEAREST, TextureSampler::MagFilter::NEAREST);
-        sampler.setWrapModeS(TextureSampler::WrapMode::REPEAT);
-        sampler.setWrapModeT(TextureSampler::WrapMode::REPEAT);
+        builder.boundingBox(geometry->getBoundingBox())
+            .geometry(0, primitiveType, geometry->vertexBuffer(), geometry->indexBuffer(), 0, numIndices)
+            .culling(true)
+            .receiveShadows(true)
+            .castShadows(true);
 
-        // Set the texture and sampler to the material instance
-        materialInstance->setParameter("baseColorMap", texture, sampler);
+        filament::Material *mat = nullptr;
+
+        if (!materialInstance)
+        {
+            Log("Using default ubershader material");
+            filament::gltfio::MaterialKey config;
+
+            memset(&config, 0, sizeof(config)); // Initialize all bits to zero
+
+            config.unlit = false;
+            config.doubleSided = false;
+            config.useSpecularGlossiness = false;
+            config.alphaMode = filament::gltfio::AlphaMode::OPAQUE;
+            config.hasBaseColorTexture = numUvs > 0;
+            config.hasClearCoat = false;
+            config.hasClearCoatNormalTexture = false;
+            config.hasClearCoatRoughnessTexture = false;
+            config.hasEmissiveTexture = false;
+            config.hasIOR = false;
+            config.hasMetallicRoughnessTexture = false;
+            config.hasNormalTexture = false;
+            config.hasOcclusionTexture = false;
+            config.hasSheen = false;
+            config.hasSheenColorTexture = false;
+            config.hasSheenRoughnessTexture = false;
+            config.hasSpecularGlossinessTexture = false;
+            config.hasTextureTransforms = false;
+            config.hasTransmission = false;
+            config.hasTransmissionTexture = false;
+            config.hasVolume = false;
+            config.hasVolumeThicknessTexture = false;
+            config.baseColorUV = 0;
+            config.hasVertexColors = false;
+            config.hasVolume = false;
+
+            materialInstance = createUbershaderMaterialInstance(config);
+
+            if (!materialInstance)
+            {
+                Log("Failed to create material instance");
+                return Entity::smuggle(Entity());
+            }
+        }
+
+        // Set up texture and sampler if UVs are available
+        if (uvs != nullptr && numUvs > 0)
+        {
+            if(materialInstance->getMaterial()->hasParameter("baseColorMap")) {
+                // Create a default white texture
+                static constexpr uint32_t textureSize = 1;
+                static constexpr uint32_t white = 0x00ffffff;
+                Texture *texture = Texture::Builder()
+                                    .width(textureSize)
+                                    .height(textureSize)
+                                    .levels(1)
+                                    .format(Texture::InternalFormat::RGBA8)
+                                    .build(*_engine);
+
+                _textures.insert(texture);
+
+                filament::backend::PixelBufferDescriptor pbd(&white, 4, Texture::Format::RGBA, Texture::Type::UBYTE);
+                texture->setImage(*_engine, 0, std::move(pbd));
+
+                // Create a sampler
+                TextureSampler sampler(TextureSampler::MinFilter::NEAREST, TextureSampler::MagFilter::NEAREST);
+                sampler.setWrapModeS(TextureSampler::WrapMode::REPEAT);
+                sampler.setWrapModeT(TextureSampler::WrapMode::REPEAT);
+
+                // Set the texture and sampler to the material instance
+                materialInstance->setParameter("baseColorMap", texture, sampler);
+            }
+        }
+
+        builder.material(0, materialInstance);
+        builder.build(*_engine, entity);
+
+        _scene->addEntity(entity);
+
+        auto entityId = Entity::smuggle(entity);
+
+        _geometry.emplace(entityId, std::move(geometry));
+
+        return entityId;
     }
 
-    builder.material(0, materialInstance);
-    builder.build(*_engine, entity);
-
-    _scene->addEntity(entity);
-
-    auto entityId = Entity::smuggle(entity);
-
-    _geometry.emplace(entityId, std::move(geometry));
-
-    return entityId;
-}
-
-    MaterialInstance* SceneManager::getMaterialInstanceAt(EntityId entityId, int materialIndex) {
+    MaterialInstance *SceneManager::getMaterialInstanceAt(EntityId entityId, int materialIndex)
+    {
         auto entity = Entity::import(entityId);
         const auto &rm = _engine->getRenderableManager();
         auto renderableInstance = rm.getInstance(entity);
@@ -2436,7 +2464,7 @@ EntityId SceneManager::createGeometry(
         materialInstance->setParameter(property, value);
     }
 
-    void SceneManager::setMaterialProperty(EntityId entityId, int materialIndex, const char *property, filament::math::float4& value)
+    void SceneManager::setMaterialProperty(EntityId entityId, int materialIndex, const char *property, filament::math::float4 &value)
     {
         auto entity = Entity::import(entityId);
         const auto &rm = _engine->getRenderableManager();
@@ -2453,17 +2481,20 @@ EntityId SceneManager::createGeometry(
             Log("Parameter %s not found", property);
             return;
         }
-        materialInstance->setParameter(property, filament::math::float4 { value.x, value.y, value.z, value.w });
+        materialInstance->setParameter(property, filament::math::float4{value.x, value.y, value.z, value.w});
     }
 
-    void SceneManager::destroy(MaterialInstance* instance) {
+    void SceneManager::destroy(MaterialInstance *instance)
+    {
         _engine->destroy(instance);
     }
 
-    MaterialInstance* SceneManager::createUbershaderMaterialInstance(filament::gltfio::MaterialKey config) {
-        filament::gltfio::UvMap uvmap {};
-        auto * materialInstance = _ubershaderProvider->createMaterialInstance(&config, &uvmap);
-        if(!materialInstance) {
+    MaterialInstance *SceneManager::createUbershaderMaterialInstance(filament::gltfio::MaterialKey config)
+    {
+        filament::gltfio::UvMap uvmap{};
+        auto *materialInstance = _ubershaderProvider->createMaterialInstance(&config, &uvmap);
+        if (!materialInstance)
+        {
             Log("Invalid material configuration");
             return nullptr;
         }
@@ -2473,44 +2504,58 @@ EntityId SceneManager::createGeometry(
         return materialInstance;
     }
 
-    MaterialInstance* SceneManager::createUnlitMaterialInstance() {
+    MaterialInstance *SceneManager::createUnlitFixedSizeMaterialInstance()
+    {
+        auto instance = _gizmoMaterial->createInstance();
+        instance->setParameter("scale", 1.0f);
+        return instance;
+    }
+
+    MaterialInstance *SceneManager::createUnlitMaterialInstance()
+    {
         UvMap uvmap;
         auto instance = _unlitMaterialProvider->createMaterialInstance(nullptr, &uvmap);
-        instance->setParameter("uvScale", filament::math::float2 { 1.0f, 1.0f });
+        instance->setParameter("uvScale", filament::math::float2{1.0f, 1.0f});
         _materialInstances.push_back(instance);
         return instance;
     }
 
-    Camera* SceneManager::createCamera() {
+    Camera *SceneManager::createCamera()
+    {
         auto entity = EntityManager::get().create();
         auto camera = _engine->createCamera(entity);
         _cameras.push_back(camera);
         return camera;
     }
 
-    void SceneManager::destroyCamera(Camera* camera) {
+    void SceneManager::destroyCamera(Camera *camera)
+    {
         auto entity = camera->getEntity();
         _engine->destroyCameraComponent(entity);
         _engine->getEntityManager().destroy(entity);
         auto it = std::find(_cameras.begin(), _cameras.end(), camera);
-        if(it != _cameras.end()) {
+        if (it != _cameras.end())
+        {
             _cameras.erase(it);
         }
     }
 
-    size_t SceneManager::getCameraCount() {
+    size_t SceneManager::getCameraCount()
+    {
         return _cameras.size() + 1;
     }
 
-    Camera* SceneManager::getCameraAt(size_t index) {
-        if(index == 0) {
+    Camera *SceneManager::getCameraAt(size_t index)
+    {
+        if (index == 0)
+        {
             return _mainCamera;
         }
-        if(index - 1 > _cameras.size() - 1) {
+        if (index - 1 > _cameras.size() - 1)
+        {
             return nullptr;
         }
-        return _cameras[index-1];
+        return _cameras[index - 1];
     }
-       
 
 } // namespace thermion

thermion_dart/native/src/TGizmo.cpp

@@ -14,15 +14,6 @@ extern "C"
 using namespace filament;
 #endif
 
-    EMSCRIPTEN_KEEPALIVE TGizmo* Gizmo_new(TEngine *tEngine, TView *tView, TScene *tScene)
-    {
-        auto *view = reinterpret_cast<View*>(tView);
-        auto *engine = reinterpret_cast<Engine*>(tEngine);
-        auto *scene = reinterpret_cast<Scene*>(tScene);
-        auto gizmo = new Gizmo(engine, view, scene);
-        return reinterpret_cast<TGizmo*>(gizmo);
-    }
-
     EMSCRIPTEN_KEEPALIVE void Gizmo_pick(TGizmo *tGizmo, uint32_t x, uint32_t y, GizmoPickCallback callback)
     {
         auto *gizmo = reinterpret_cast<Gizmo*>(tGizmo);

thermion_dart/native/src/ThermionDartApi.cpp

@@ -173,6 +173,14 @@ extern "C"
         return ((SceneManager *)sceneManager)->loadGlb(assetPath, numInstances, keepData);
     }
 
+    EMSCRIPTEN_KEEPALIVE TGizmo* SceneManager_createGizmo(TSceneManager *tSceneManager, TView *tView, TScene *tScene) {
+        auto sceneManager = reinterpret_cast<SceneManager*>(tSceneManager);
+        auto *scene = reinterpret_cast<Scene*>(tScene);
+        auto *view = reinterpret_cast<View*>(tView);
+        auto gizmo = sceneManager->createGizmo(view, scene);
+        return reinterpret_cast<TGizmo*>(gizmo);
+    }
+    
     EMSCRIPTEN_KEEPALIVE EntityId SceneManager_loadGlbFromBuffer(TSceneManager *sceneManager, const uint8_t *const data, size_t length, bool keepData, int priority, int layer, bool loadResourcesAsync)
     {
         return ((SceneManager *)sceneManager)->loadGlbFromBuffer((const uint8_t *)data, length, 1, keepData, priority, layer, loadResourcesAsync);
@@ -1026,6 +1034,12 @@ extern "C"
         return reinterpret_cast<TMaterialInstance *>(instance);
     }
 
+    EMSCRIPTEN_KEEPALIVE TMaterialInstance *SceneManager_createUnlitFixedSizeMaterialInstance(TSceneManager *sceneManager)
+    {
+        auto *instance = ((SceneManager *)sceneManager)->createUnlitFixedSizeMaterialInstance();
+        return reinterpret_cast<TMaterialInstance *>(instance);
+    }
+
     EMSCRIPTEN_KEEPALIVE void destroy_material_instance(TSceneManager *sceneManager, TMaterialInstance *instance)
     {
         ((SceneManager *)sceneManager)->destroy(reinterpret_cast<MaterialInstance *>(instance));
@@ -1047,6 +1061,10 @@ extern "C"
         reinterpret_cast<MaterialInstance *>(materialInstance)->setParameter(propertyName, data);
     }
 
+    EMSCRIPTEN_KEEPALIVE void MaterialInstance_setParameterFloat(TMaterialInstance *materialInstance, const char *propertyName, double value)
+    {
+        reinterpret_cast<MaterialInstance *>(materialInstance)->setParameter(propertyName, static_cast<float>(value));
+    }
 
     EMSCRIPTEN_KEEPALIVE TCamera *Engine_getCameraComponent(TEngine *tEngine, EntityId entityId)
     {

thermion_dart/native/src/ThermionDartRenderThreadApi.cpp

@@ -371,6 +371,16 @@ extern "C"
     auto fut = _rl->add_task(lambda);
   }
 
+  EMSCRIPTEN_KEEPALIVE void SceneManager_createUnlitFixedSizeMaterialInstanceRenderThread(TSceneManager *sceneManager, void (*callback)(TMaterialInstance*)) {
+    std::packaged_task<void()> lambda(
+        [=]() mutable
+        {
+          auto instance = SceneManager_createUnlitFixedSizeMaterialInstance(sceneManager);
+          callback(instance);
+        });
+    auto fut = _rl->add_task(lambda);
+  }
+
   EMSCRIPTEN_KEEPALIVE void SceneManager_loadGlbFromBufferRenderThread(TSceneManager *sceneManager,
                                                                const uint8_t *const data,
                                                                size_t length,

thermion_dart/native/web/CMakeLists.txt

@@ -62,7 +62,7 @@ add_executable(${MODULE_NAME}
   "${CMAKE_CURRENT_SOURCE_DIR}/../src/camutils/Manipulator.cpp"
   "${CMAKE_CURRENT_SOURCE_DIR}/../src/camutils/Bookmark.cpp"
   "${CMAKE_CURRENT_SOURCE_DIR}/../include/material/image.c"
-  "${CMAKE_CURRENT_SOURCE_DIR}/../include/material/gizmo.c"
+  "${CMAKE_CURRENT_SOURCE_DIR}/../include/material/unlit_fixed_size.c"
   "${CMAKE_CURRENT_SOURCE_DIR}/src/cpp/ThermionDartWebApi.cpp"
 )
 set_target_properties(${MODULE_NAME} PROPERTIES

thermion_dart/pubspec.yaml

@@ -1,6 +1,6 @@
 name: thermion_dart
 description: 3D rendering toolkit for Dart.
-version: 0.2.1-dev.0.0.14
+version: 0.2.1-dev.0.0.16
 homepage: https://thermion.dev
 repository: https://github.com/nmfisher/thermion
 

thermion_dart/test/material_tests.dart

@@ -31,6 +31,29 @@ void main() async {
         await viewer.dispose();
     });
 
+    test('unlit fixed size material', () async {
+        var viewer = await testHelper.createViewer();
+        await viewer.setCameraPosition(0, 0, 6);
+        await viewer.setBackgroundColor(1.0, 0.0, 0.0, 1.0);
+        await viewer.setPostProcessing(true);
+        await viewer.setToneMapping(ToneMapper.LINEAR);
+
+        var materialInstance = await viewer.createUnlitFixedSizeMaterialInstance();
+        var cube = await viewer.createGeometry(GeometryHelper.cube(),
+            materialInstance: materialInstance);
+
+        await viewer.setMaterialPropertyFloat4(
+            cube, "baseColorFactor", 0, 0.0, 1.0, 0.0, 1.0);
+
+        await testHelper.capture(viewer, "unlit_fixed_size_default_scale");
+
+        await materialInstance.setParameterFloat("scale", 10.0);
+
+        await testHelper.capture(viewer, "unlit_fixed_size_scale_10");
+
+        await viewer.dispose();
+    });
+
     test('apply texture to custom ubershader material instance', () async {
       var viewer = await testHelper.createViewer();
       await viewer.addLight(LightType.SUN, 6500, 1000000, 0, 0, 0, 0, 0, -1);

thermion_flutter/thermion_flutter/CHANGELOG.md

@@ -1,3 +1,11 @@
+## 0.2.1-dev.16
+
+ - Update a dependency to the latest release.
+
+## 0.2.1-dev.15
+
+ - **FIX**: multiply coordinates by pixelRatio for scale events.
+
 ## 0.2.1-dev.14
 
  - Update a dependency to the latest release.

thermion_flutter/thermion_flutter/README.md

@@ -3,7 +3,7 @@
 <p align="center">
   <a href="https://thermion.dev/quickstart">Quickstart (Flutter)</a> •
   <a href="https://thermion.dev/quickstart">Documentation</a> •
-  <a href="https://thermion.dev/examples">Showcase</a> •
+  <a href="https://thermion.dev/showcase">Showcase</a> •
   <a href="https://dartpad.thermion.dev/">Playground</a> •
   <a href="https://discord.gg/h2VdDK3EAQ">Discord</a>
 </p>

thermion_flutter/thermion_flutter/lib/src/widgets/src/thermion_listener_widget.dart

@@ -165,12 +165,12 @@ class _MobileListenerWidgetState extends State<_MobileListenerWidget> {
         },
         onScaleStart: (details) async {
           await widget.inputHandler.onScaleStart(
-              details.localFocalPoint.toVector2(), details.pointerCount, details.sourceTimeStamp);
+              details.localFocalPoint.toVector2() * widget.pixelRatio, details.pointerCount, details.sourceTimeStamp);
         },
         onScaleUpdate: (ScaleUpdateDetails details) async {
           await widget.inputHandler.onScaleUpdate(
-              details.localFocalPoint.toVector2(),
-              details.focalPointDelta.toVector2(),
+              details.localFocalPoint.toVector2() * widget.pixelRatio,
+              details.focalPointDelta.toVector2() * widget.pixelRatio,
               details.horizontalScale,
               details.verticalScale,
               details.scale,

thermion_flutter/thermion_flutter/lib/src/widgets/src/thermion_texture_widget.dart

@@ -68,12 +68,22 @@ class _ThermionTextureWidgetState extends State<ThermionTextureWidget> {
       var dpr = MediaQuery.of(context).devicePixelRatio;
 
       var size = ((context.findRenderObject()) as RenderBox).size;
+
+      _logger.info(
+          "Widget size in logical pixels ${size} (pixel ratio : $dpr)");
+      
       var width = (size.width * dpr).ceil();
       var height = (size.height * dpr).ceil();
 
+      _logger.info(
+          "Target texture dimensions ${width}x${height} (pixel ratio : $dpr)");
+
       _texture = await ThermionFlutterPlatform.instance
           .createTexture(widget.view, width, height);
 
+      _logger.info(
+          "Actual texture dimensions ${_texture!.width}x${_texture!.height} (pixel ratio : $dpr)");
+
       await widget.view.updateViewport(_texture!.width, _texture!.height);
 
       try {
@@ -177,6 +187,9 @@ class _ThermionTextureWidgetState extends State<ThermionTextureWidget> {
       var newWidth = newSize.width.ceil();
       var newHeight = newSize.height.ceil();
 
+      _logger.info(
+          "Resizing texture to dimensions ${newWidth}x${newHeight} (pixel ratio : $dpr)");
+
       await _texture?.resize(
         newWidth,
         newHeight,
@@ -184,6 +197,9 @@ class _ThermionTextureWidgetState extends State<ThermionTextureWidget> {
         0,
       );
 
+      _logger.info(
+          "Resized texture to dimensions ${_texture!.width}x${_texture!.height} (pixel ratio : $dpr)");
+
       await widget.view.updateViewport(_texture!.width, _texture!.height);
 
       await widget.onResize?.call(

thermion_flutter/thermion_flutter/pubspec.yaml

@@ -1,6 +1,6 @@
 name: thermion_flutter
 description: Flutter plugin for 3D rendering with the Thermion toolkit.
-version: 0.2.1-dev.14
+version: 0.2.1-dev.16
 homepage: https://thermion.dev
 repository: https://github.com/nmfisher/thermion
 
@@ -17,10 +17,10 @@ dependencies:
   plugin_platform_interface: ^2.0.0
   ffi: ^2.1.2
   animation_tools_dart: ^0.1.0
-  thermion_dart: ^0.2.1-dev.0.0.14
-  thermion_flutter_platform_interface: ^0.2.1-dev.14
-  thermion_flutter_ffi: ^0.2.1-dev.14
-  thermion_flutter_web: ^0.2.0+5
+  thermion_dart: ^0.2.1-dev.0.0.16
+  thermion_flutter_platform_interface: ^0.2.1-dev.16
+  thermion_flutter_ffi: ^0.2.1-dev.16
+  thermion_flutter_web: ^0.2.0+7
   logging: ^1.2.0
   web: ^1.0.0
 

thermion_flutter/thermion_flutter_ffi/CHANGELOG.md

@@ -1,3 +1,11 @@
+## 0.2.1-dev.16
+
+ - Update a dependency to the latest release.
+
+## 0.2.1-dev.15
+
+ - Update a dependency to the latest release.
+
 ## 0.2.1-dev.14
 
  - Update a dependency to the latest release.

thermion_flutter/thermion_flutter_ffi/pubspec.yaml

@@ -1,7 +1,7 @@
 name: thermion_flutter_ffi
 description: An FFI implementation for thermion_flutter (i.e. all platforms except web).
 repository: https://github.com/nmfisher/thermion_flutter/thermion_flutter
-version: 0.2.1-dev.14
+version: 0.2.1-dev.16
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -23,8 +23,8 @@ dependencies:
   flutter:
     sdk: flutter
   plugin_platform_interface: ^2.1.0
-  thermion_flutter_platform_interface: ^0.2.1-dev.14
-  thermion_dart: ^0.2.1-dev.0.0.14
+  thermion_flutter_platform_interface: ^0.2.1-dev.16
+  thermion_dart: ^0.2.1-dev.0.0.16
   logging: ^1.2.0
 
 dev_dependencies:

thermion_flutter/thermion_flutter_platform_interface/CHANGELOG.md

@@ -1,3 +1,11 @@
+## 0.2.1-dev.16
+
+ - Update a dependency to the latest release.
+
+## 0.2.1-dev.15
+
+ - Update a dependency to the latest release.
+
 ## 0.2.1-dev.14
 
  - Update a dependency to the latest release.

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: 0.2.1-dev.14
+version: 0.2.1-dev.16
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -11,7 +11,7 @@ dependencies:
   flutter:
     sdk: flutter
   plugin_platform_interface: ^2.1.0
-  thermion_dart: ^0.2.1-dev.0.0.14
+  thermion_dart: ^0.2.1-dev.0.0.16
 
 dev_dependencies:
   flutter_test:

thermion_flutter/thermion_flutter_web/CHANGELOG.md

@@ -1,3 +1,11 @@
+## 0.2.0+7
+
+ - Update a dependency to the latest release.
+
+## 0.2.0+6
+
+ - Update a dependency to the latest release.
+
 ## 0.2.0+5
 
  - Update a dependency to the latest release.

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: 0.2.0+5
+version: 0.2.0+7
 
 environment:
   sdk: ">=3.3.0 <4.0.0"
@@ -20,8 +20,8 @@ dependencies:
     sdk: flutter
   plugin_platform_interface: ^2.1.0
   web: ^1.0.0
-  thermion_dart: ^0.2.1-dev.0.0.14
-  thermion_flutter_platform_interface: ^0.2.1-dev.14
+  thermion_dart: ^0.2.1-dev.0.0.16
+  thermion_flutter_platform_interface: ^0.2.1-dev.16
   flutter_web_plugins:
     sdk: flutter