[vtkusers] about rendering two volumes

[Yixun Liu]

Hi,

I want to render two volumes in a renderer. I did it as below,

ren->AddVolume(volume1);
ren->AddVolume(volume2);

volume2 is actually behind the volume1, However volume2 appears before volume1 because it is added to the renderer after the volume1. How to show them correctly? Does it need a depth check?

Regards,

Yixun Liu
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