unity-cuda-interop

Demo of Unity3D CUDA texture interop issue

This project demonstrates a problem of accessing Unity3D RenderTarget from CUDA.

In particular, for D3D9, D3D11 cores cudaGraphicsD3D??RegisterResource() returns 11 (invalid parameter). For OpenGL core cudaGraphicsGLRegisterImage() returns 63 (cudaErrorOperatingSystem, This error indicates that an OS call failed).

Replacing RenderTarget with normal Texture allows CUDA calls to succeed.