[Paraview] render 3D color volume

[Yixun Liu]

Hi,
My data is 3D volume. Each voxel includes 4 components: RGBA. I can use
vtkFixedPointVolumeRaycastMapper to render it, but need a opactiy
mapping function to control the mapping. This function
maps intensity to opacity. What I want to do is to map some region to
specified opacity. Can I use the 4th component alpha to control the opacity?

No reply from VTK mailing list. So send here for help.

Thanks.

Yixun