step 3

apps/LoopThroughWithOpenGLCompositing/gl/RenderEngine.cpp

@@ -415,7 +415,16 @@ void RenderEngine::ProcessScreenshotCaptureCommandsOnRenderThread()
 
 void RenderEngine::ClearOscOverlayState()
 {
-	mRuntimeLiveState.Clear();
+	InvokeOnRenderThread([this]() {
+		mRuntimeLiveState.Clear();
+	});
+}
+
+void RenderEngine::ClearOscOverlayStateForLayerKey(const std::string& layerKey)
+{
+	InvokeOnRenderThread([this, layerKey]() {
+		mRuntimeLiveState.ClearForLayerKey(layerKey);
+	});
 }
 
 void RenderEngine::UpdateOscOverlayState(

apps/LoopThroughWithOpenGLCompositing/gl/RenderEngine.h

@@ -95,6 +95,7 @@ public:
 	void ResetShaderFeedbackState();
 	void ApplyRuntimeCoordinatorRenderReset(RuntimeCoordinatorRenderResetScope resetScope);
 	void ClearOscOverlayState();
+	void ClearOscOverlayStateForLayerKey(const std::string& layerKey);
 	void UpdateOscOverlayState(
 		const std::vector<OscOverlayUpdate>& updates,
 		const std::vector<OscOverlayCommitCompletion>& completedCommits);

apps/LoopThroughWithOpenGLCompositing/gl/RuntimeUpdateController.cpp

@@ -85,10 +85,19 @@ bool RuntimeUpdateController::ApplyRuntimeCoordinatorResult(const RuntimeCoordin
 
 	mRuntimeCoordinator.ApplyCommittedStateMode(result.committedStateMode);
 
-	if (result.clearTransientOscState)
+	switch (result.transientOscInvalidation)
 	{
+	case RuntimeCoordinatorTransientOscInvalidation::All:
 		mRenderEngine.ClearOscOverlayState();
 		mRuntimeServices.ClearOscState();
+		break;
+	case RuntimeCoordinatorTransientOscInvalidation::Layer:
+		mRenderEngine.ClearOscOverlayStateForLayerKey(result.transientOscLayerKey);
+		mRuntimeServices.ClearOscStateForLayerKey(result.transientOscLayerKey);
+		break;
+	case RuntimeCoordinatorTransientOscInvalidation::None:
+	default:
+		break;
 	}
 
 	mRenderEngine.ApplyRuntimeCoordinatorRenderReset(result.renderResetScope);