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add getCameraFrustum() and getCameraProjectionMatrix()

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This commit is contained in:
Nick Fisher
2023-11-08 20:30:14 +08:00
parent 962d53442f
commit 2db353cc3b
12 changed files with 521 additions and 78 deletions
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28
lib/filament_controller_ffi.dart
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@@ -1083,4 +1083,32 @@ class FilamentControllerFFI extends FilamentController {
set_camera_manipulator_options(
_viewer!, mode.index, orbitSpeedX, orbitSpeedX, zoomSpeed);
}
@override
Future<Matrix4> getCameraProjectionMatrix() async {
if (_viewer == null) {
throw Exception("No viewer available");
}
var arrayPtr = get_camera_projection_matrix(_viewer!);
var doubleList = arrayPtr.asTypedList(16);
var projectionMatrix = Matrix4.fromList(doubleList);
flutter_filament_free(arrayPtr.cast<Void>());
return projectionMatrix;
}
@override
Future<List<Vector4>> getCameraFrustum() async {
if (_viewer == null) {
throw Exception("No viewer available");
}
var arrayPtr = get_camera_frustum(_viewer!);
var doubleList = arrayPtr.asTypedList(6 * 4);
var frustum = <Vector4>[];
for (int i = 0; i < 6; i++) {
var plane = Vector4.array(doubleList.sublist(i * 4, (i + 1) * 4));
frustum.add(plane);
}
flutter_filament_free(arrayPtr.cast<Void>());
return frustum;
}
}