I have recently been interested to use the interoperability with Direct3D. My objective is to use Direct3D9 to display stereoscopic images processed with CUDA. However, I noticed a strange blocky effect one the rendering done. When I play a movie I can clearly see small block boundaries. These block are also smaller that my CUDA blocks. They seem to have a 12 by 12 pixels dimension. I am sure it is only related to the rendering part because before using D3D my program worked fine.
Also my source video does not present any blocky artifacts due to video compression.
I post an sample but it might be difficult to see the blocks.
Has someone had the same problem before ?
Thank a lot.