Interest in GPU image processing pipeline

[lassoan (Andras Lasso)]

@cryos

Do you have GSL implementations of these filters?

@Sunderlandkyl only implemented
vtkGPUImageGaussianFilter as an example. We’ll experiment with this a bit more during the upcoming Slicer Project Week in Boston, to see how easy it is to include custom GLSL code in the processing/rendering pipeline.

@cryos

We are using VTK-m quite a bit too, but keeping more GPU resident without ever copying back has a number of advantages

My understanding is that soon VTK-m, too, will be able do this. The main differentiator is that VTK-m is more general, better suited for complex algorithms, but it is larger and more complex than needed, if all you want to do is to run some simple processing implemented in GLSL.