Rendering glitches when using vtkSSAOPass and vtkDepthPeelingPass

Support
3

Your render passes setup looks weird to me. The steps pass should be the delegate of the ssao pass. Here is how the VTK test initializes the render passes:

  vtkNew<vtkRenderStepsPass> basicPasses;

  vtkNew<vtkSSAOPass> ssao;
  ssao->SetRadius(0.05);
  ssao->SetKernelSize(128);
  ssao->SetDelegatePass(basicPasses);

  vtkOpenGLRenderer* glrenderer = vtkOpenGLRenderer::SafeDownCast(renderer);
  glrenderer->SetPass(ssao);

Is the result the same if you use this code?