diff --git a/thermion_dart/lib/src/filament/src/filament_app.dart b/thermion_dart/lib/src/filament/src/filament_app.dart
index e50c2568..f1494331 100644
--- a/thermion_dart/lib/src/filament/src/filament_app.dart
+++ b/thermion_dart/lib/src/filament/src/filament_app.dart
@@ -256,19 +256,17 @@ abstract class FilamentApp<T> {
   Future<MaterialInstance> createImageMaterialInstance();
 
   ///
-  /// Returns pixel buffer(s) for [view] (or, if null, all views associated 
+  /// Returns pixel buffer(s) for [view] (or, if null, all views associated
   /// with [swapChain] by calling [register]).
-  /// 
+  ///
   /// Pixel buffers will be returned in RGBA float32 format.
   ///
-  Future<List<(View,Uint8List)>> capture(covariant SwapChain swapChain,
-      {
-      covariant View? view,
+  Future<List<(View, Uint8List)>> capture(covariant SwapChain swapChain,
+      {covariant View? view,
       bool captureRenderTarget = false,
       PixelDataFormat pixelDataFormat = PixelDataFormat.RGBA,
       PixelDataType pixelDataType = PixelDataType.UBYTE,
-      Future Function(View)? beforeRender}
-  );
+      Future Function(View)? beforeRender});
 
   ///
   ///
@@ -302,7 +300,10 @@ abstract class FilamentApp<T> {
   ///
   ///
   Future<ThermionAsset> createGeometry(Geometry geometry, T animationManager,
-      {List<MaterialInstance>? materialInstances,
-      bool keepData = false}); 
+      {List<MaterialInstance>? materialInstances, bool keepData = false});
 
+  ///
+  ///
+  ///
+  Future flush();
 }
diff --git a/thermion_dart/lib/src/viewer/src/ffi/src/ffi_filament_app.dart b/thermion_dart/lib/src/viewer/src/ffi/src/ffi_filament_app.dart
index d28fff6a..7b03bb7f 100644
--- a/thermion_dart/lib/src/viewer/src/ffi/src/ffi_filament_app.dart
+++ b/thermion_dart/lib/src/viewer/src/ffi/src/ffi_filament_app.dart
@@ -681,7 +681,8 @@ class FFIFilamentApp extends FilamentApp<Pointer> {
       beforeRender?.call(view);
 
       final viewport = await view.getViewport();
-      final pixelBuffer = Uint8List(viewport.width * viewport.height * 4 * sizeOf<Float>());
+      final pixelBuffer =
+          Uint8List(viewport.width * viewport.height * 4 * sizeOf<Float>());
       await withVoidCallback((cb) {
         Renderer_renderRenderThread(
           renderer,
@@ -695,17 +696,18 @@ class FFIFilamentApp extends FilamentApp<Pointer> {
       }
       await withVoidCallback((cb) {
         Renderer_readPixelsRenderThread(
-          renderer,
-          view.view,
-          view.renderTarget == null ? nullptr : view.renderTarget!.renderTarget,
-          // TPixelDataFormat.PIXELDATAFORMAT_RGBA,
-          // TPixelDataType.PIXELDATATYPE_UBYTE,
-          pixelDataFormat.value,
-          pixelDataType.value,
-          pixelBuffer.address,
-          pixelBuffer.length,
-          cb
-        );
+            renderer,
+            view.view,
+            view.renderTarget == null
+                ? nullptr
+                : view.renderTarget!.renderTarget,
+            // TPixelDataFormat.PIXELDATAFORMAT_RGBA,
+            // TPixelDataType.PIXELDATATYPE_UBYTE,
+            pixelDataFormat.value,
+            pixelDataType.value,
+            pixelBuffer.address,
+            pixelBuffer.length,
+            cb);
       });
       pixelBuffers.add((view, pixelBuffer));
     }
@@ -866,7 +868,8 @@ class FFIFilamentApp extends FilamentApp<Pointer> {
   ///
   ///
   @override
-  Future<ThermionAsset> createGeometry(Geometry geometry, Pointer animationManager,
+  Future<ThermionAsset> createGeometry(
+      Geometry geometry, Pointer animationManager,
       {List<MaterialInstance>? materialInstances,
       bool keepData = false,
       bool addToScene = true}) async {
@@ -903,6 +906,13 @@ class FFIFilamentApp extends FilamentApp<Pointer> {
 
     return FFIAsset(assetPtr, this, animationManager.cast<TAnimationManager>());
   }
+
+  ///
+  ///
+  ///
+  Future flush() async {
+    await withVoidCallback((cb) => Engine_flushAndWaitRenderThead(engine, cb));
+  }
 }
 
 class FinalizableUint8List implements Finalizable {