CUDA does not know anything about materials, it's only an API to run code on the GPU and transfer data back and forth from main memory to gpu memory. So it's al

CUDA does not know anything about materials, it's only an API to run code on the GPU and transfer data back and forth from main memory to gpu memory. So it's all up to VRAY devs to implement material rendering with the tools they have available. As far as I know, there will be no revolutionary changes in GPGPU programming in the immediate near future (apart from badass-er GPUs).