cuda r-d

This was the first video I made while experimenting with CUDA. Here I was hoping to match to a simple reaction-diffusion program using FieldViewer. FieldViewer is a c++ application written by my advisor Ted Kim for his pattern formation class.

Since it was my first step into programming on the GPU that wasn’t using shaders, I wanted to verify the simulation results by comparing them to ones coming from the CPU in FieldViewer. I was able to match the diffusion term exactly, but adding reaction introduced a relative error that grew to 1e-4 after 10,000 frames. This is still an open question.

repo:
https://github.com/ultrareality/2_Graphics/tree/master/00_kk/simpleRD