[vtkusers] VTK & GPU

[Sharmila Subbiah]

Hi,
 
We were using VTK for volume rendering and some image operations. Now we are moving towards CUDA for real-time image processing for an application with high performance constraints. We want to make use of both CUDA and VTK for processing. Regarding this, we have the following questions. 
1) How much of overhead does VTK add over OpenGL? 
2) How much does VTK leverage the GPU capabilities? How about utilizing the large number of cores available on NVIDIA CUDA-enabled GPU? 
3) How much of interoperability do we have between VTK and CUDA? Can VTK and CUDA share the buffer objects on GPU, or will there be additional data transfers between GPU and CPU?

Thanks,
Sharmila