temporarily disabling rtt callback

src/Rendering/prePassRendererSceneComponent.ts

@@ -108,8 +108,8 @@ export class PrePassRendererSceneComponent implements ISceneComponent {
     public register(): void {
         this.scene._beforeCameraDrawStage.registerStep(SceneComponentConstants.STEP_BEFORECAMERADRAW_PREPASS, this, this._beforeCameraDraw);
         this.scene._afterCameraDrawStage.registerStep(SceneComponentConstants.STEP_AFTERCAMERADRAW_PREPASS, this, this._afterCameraDraw);
-        this.scene._beforeRenderTargetDrawStage.registerStep(SceneComponentConstants.STEP_BEFORERENDERTARGETDRAW_PREPASS, this, this._beforeRenderTargetDraw);
-        this.scene._afterRenderTargetDrawStage.registerStep(SceneComponentConstants.STEP_AFTERCAMERADRAW_PREPASS, this, this._afterRenderTargetDraw);
+        // this.scene._beforeRenderTargetDrawStage.registerStep(SceneComponentConstants.STEP_BEFORERENDERTARGETDRAW_PREPASS, this, this._beforeRenderTargetDraw);
+        // this.scene._afterRenderTargetDrawStage.registerStep(SceneComponentConstants.STEP_AFTERCAMERADRAW_PREPASS, this, this._afterRenderTargetDraw);
 
         this.scene._beforeClearStage.registerStep(SceneComponentConstants.STEP_BEFORECLEARSTAGE_PREPASS, this, this._beforeClearStage);