I would need to sample a volume with a transfer node or any other node, but without any interpolation. I have some vertices and a volume and need to get the real values of the voxels which contain the vertices without any interpolation. Any suggestions ? ATM I am using a very ugly python/numpy combination which converts the vertices into array indices in the numpy array of the volume… which is very slow and memory consuming..

Have you looked at the attribute from volume sop?

G

I did take a look but I didn't find anything about interpolation modes .. did you ?