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add model/view matrix getters & manipulator options

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This commit is contained in:
Nick Fisher
2023-11-03 15:20:15 +08:00
parent 83469e93b9
commit 58a9542121
18 changed files with 833 additions and 553 deletions
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48
lib/filament_controller_ffi.dart
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@@ -1,6 +1,7 @@
import 'dart:async';
import 'dart:ffi';
import 'dart:io';
import 'dart:typed_data';
import 'dart:ui' as ui;
import 'package:flutter/services.dart';
import 'package:ffi/ffi.dart';
@@ -11,6 +12,7 @@ import 'package:flutter_filament/filament_controller.dart';
import 'package:flutter_filament/animations/animation_data.dart';
import 'package:flutter_filament/generated_bindings.dart';
import 'package:flutter_filament/rendering_surface.dart';
import 'package:vector_math/vector_math_64.dart';
// ignore: constant_identifier_names
const FilamentEntity _FILAMENT_ASSET_ERROR = 0;
@@ -967,7 +969,7 @@ class FilamentControllerFFI extends FilamentController {
_lib.pick_ffi(_viewer!, x, textureDetails.value!.height - y, outPtr);
int wait = 0;
while (outPtr.value == 0) {
await Future.delayed(Duration(milliseconds: 50));
await Future.delayed(const Duration(milliseconds: 32));
wait++;
if (wait > 10) {
calloc.free(outPtr);
@@ -978,4 +980,48 @@ class FilamentControllerFFI extends FilamentController {
_pickResultController.add(entityId);
calloc.free(outPtr);
}
@override
Future<Matrix4> getCameraViewMatrix() async {
if (_viewer == null) {
throw Exception("No viewer available");
}
var arrayPtr = _lib.get_camera_view_matrix(_viewer!);
return Matrix4.fromList(arrayPtr.asTypedList(16));
}
@override
Future<Matrix4> getCameraModelMatrix() async {
if (_viewer == null) {
throw Exception("No viewer available");
}
var arrayPtr = _lib.get_camera_model_matrix(_viewer!);
return Matrix4.fromList(arrayPtr.asTypedList(16));
}
@override
Future<Vector3> getCameraPosition() async {
if (_viewer == null) {
throw Exception("No viewer available");
}
var arrayPtr = _lib.get_camera_model_matrix(_viewer!);
var doubleList = arrayPtr.asTypedList(16);
var modelMatrix = Matrix4.fromFloat64List(doubleList);
calloc.free(arrayPtr);
return modelMatrix.getColumn(3).xyz;
}
@override
Future<Matrix3> getCameraRotation() async {
if (_viewer == null) {
throw Exception("No viewer available");
}
var arrayPtr = _lib.get_camera_model_matrix(_viewer!);
var doubleList = arrayPtr.asTypedList(16);
var modelMatrix = Matrix4.fromFloat64List(doubleList);
var rotationMatrix = Matrix3.identity();
modelMatrix.copyRotation(rotationMatrix);
calloc.free(arrayPtr);
return rotationMatrix;
}
}