[vtkusers] Label Map and vtkOpenGLGPUVolumeRayCastMapper

[Rick Frank]

Hi,

I am trying to create a mask with a label map that will render voxels of a certain value in the main image a certain color, based on the mask locations
being set to 1. Think “flood fill”.


if I set the mask blend factor to 1.0, I assume it’s going to pull the color from the second transfer function, but
it never does. 

Here is a simple example code, one file and a CMakeLists.txt file.

https://1drv.ms/u/s!AirZBUkSRBDOg1rKOz5KBPLo6GzJ <https://1drv.ms/u/s!AirZBUkSRBDOg1rKOz5KBPLo6GzJ>


can anyone build it / take a look and see what I’m not getting correct here?

I can’t seem what I might be doing incorrectly.

Thanks


Rick

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