expose addAnimationComponent and dont add by default on loadGlb

lib/filament_controller.dart

@@ -610,12 +610,18 @@ abstract class FilamentController {
   ///
   Future setRecordingOutputDirectory(String outputDirectory);
 
-  // Stream get keyboardFocusRequested;
-  // void requestKeyboardFocus();
-
+  ///
+  /// Attach the keyboard/mouse to [entity].
+  ///
   Future<EntityTransformController> control(FilamentEntity entity,
       {double? translationSpeed, String? forwardAnimation});
 
+  ///
+  /// An [entity] will only be animatable after an animation component is attached.
+  /// Any calls to [playAnimation]/[setBoneAnimation]/[setMorphAnimation] will have no visual effect until [addAnimationComponent] has been called on the instance.
+  ///
+  Future addAnimationComponent(FilamentEntity entity);
+
   ///
   /// Makes [collidableEntity] collidable with
   ///   (a) any entity whose transform is being controlled (via [control]) or

lib/filament_controller_ffi.dart

@@ -1269,7 +1269,8 @@ class FilamentControllerFFI extends FilamentController {
     final outPtr = allocator<EntityId>(1);
     outPtr.value = 0;
 
-    pick_ffi(_viewer!, x, textureDetails.value!.height - y, outPtr);
+    pick_ffi(_viewer!, (x * _pixelRatio).toInt(),
+        textureDetails.value!.height - (y * _pixelRatio).toInt(), outPtr);
     int wait = 0;
     while (outPtr.value == 0) {
       await Future.delayed(const Duration(milliseconds: 32));
@@ -1497,6 +1498,11 @@ class FilamentControllerFFI extends FilamentController {
     }
   }
 
+  @override
+  Future addAnimationComponent(FilamentEntity entity) async {
+    add_animation_component(_sceneManager!, entity);
+  }
+
   @override
   Future<FilamentEntity> createGeometry(
       List<double> vertices, List<int> indices, String? materialPath) async {

lib/generated_bindings.dart

@@ -225,10 +225,10 @@ external int get_instance_count(
 );
 
 @ffi.Native<
-        ffi.Int Function(
+        ffi.Void Function(
             ffi.Pointer<ffi.Void>, EntityId, ffi.Pointer<EntityId>)>(
     symbol: 'get_instances', assetId: 'flutter_filament_plugin')
-external int get_instances(
+external void get_instances(
   ffi.Pointer<ffi.Void> sceneManager,
   int entityId,
   ffi.Pointer<EntityId> out,
@@ -931,6 +931,13 @@ external void add_collision_component(
   bool affectsCollidingTransform,
 );
 
+@ffi.Native<ffi.Void Function(ffi.Pointer<ffi.Void>, EntityId)>(
+    symbol: 'add_animation_component', assetId: 'flutter_filament_plugin')
+external void add_animation_component(
+  ffi.Pointer<ffi.Void> sceneManager,
+  int entityId,
+);
+
 @ffi.Native<
         EntityId Function(ffi.Pointer<ffi.Void>, ffi.Pointer<ffi.Float>,
             ffi.Int, ffi.Pointer<ffi.Uint16>, ffi.Int, ffi.Pointer<ffi.Char>)>(