vtk has no attribute 'vtk Volume Ray Cast Composite Function'

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1

Hi. I got an error module ‘vtk’ has no attribute ‘vtkVolumeRayCastCompositeFunction’. Can you help me to resolve this? Thanks

2

Either your VTK is built without volume rendering support or your VTK is newer than 8.1.0 which removed the deprecated class.

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3

Thanks, Ben. I have VTK 9.2, So what do you prefer to work with, 8.1 or 9.2??
And what class is replaced by “vtkVolumeRayCastCompositeFunction” in 9.8?

4

I’m not quite sure what replaces it. @sankhesh

But the latest release is recommended.

5

@RoseSuiteMadule The different composite functions like vtkVolumeRayCastCompositeFunction, vtkVolumeRayCastMIPFunction, etc. from VTK < 8 were consolidated into the BlendMode flag on the vtkGPUVolumeRayCastMapper. So for composite blending, call mapper->SetBlendModeToComposte(), for maximum intensity, SetBlendModeToMaximumIntensity(), and so on.