ImportError DLL while running PyOptiX hello.py example on Windows

Gaming and Visualization Technologies Visualization OptiX
7

Hi,

A cleaner solution to solve the issue that worked for me:

  • set the NVRTC_DLL environment variable to your own nvrtc DLL path
    (in my case set NVRTC_DLL=C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v12.4\bin\nvrtc64_120_0.dll);

  • add the cuda binary path to the DLL directories os.add_dll_directory(os.environ.get('CUDA_PATH') + "/bin") before import optix.

Then, pyoptix examples are able to run on Windows.

I didn’t found a way to change the optix package so that it can take into account the cuda binary directory internally…

Btw, thank you for creating pyoptix, this is a really usefull tool that helps me a lot.

Hope this helps.