[vtkusers] Volume Rendering - Using different scalars for opacity and color transfer function

[paule]

Hi Taha,

maybe I'll overlooked something, but it is not possible to use
vtkVolumeRayCastFunction in the way you suggested, because it is an abstract
class.

This produces the error
rayCastFunction = vtkVolumeRayCastFunction()
TypeError: this is an abstract class and cannot be instantiated

Also I'm not sure on how a different composite function would use different
scalars for the coloring of the volume.

Thanks,
Paul



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