That’s very good to know. In that case, I guess I need to just pick a renderer OR implement some sort of manual fallback code. Is there a good way to programmatically check for GPU support and resources? I haven’t had any luck with vtkGPUInfoList. Since the documentation for that class tells you to use platform-specific implementations, and yet those implementations have been removed, my intuition is that all of these things are related and that isn’t supported anymore.