Optix.NET

Project Description
Optix.NET is a .NET wrapper for the Nvidia Optix GPU ray-tracing library.

The project is currently a work in progress and is in the Beta stage. All Nvidia OptiX features have been integrated. Please feel free to try it out, report any bugs, and make suggestions on improvements.

I have put a small tutorial on creating an Optix.NET program here: http://graphicsrunner.blogspot.com/2012/02/optixnet-managed-wrapper-for-nvidia.html

Screen capture of the PathTracer sample in the SDK:

Image featuring Indirect vs Direct lighting in the Instant Radiosity sample.

Indirect Virtual Point Lights were created with Optix and consumed by Direct3D11 pixel and compute shaders.

Installation:

Hardware Requirements:

• Nvidia G80 (8800GTX) GPU or above.

Developers

Software Requirements:

• Install Nvidia CUDA 4.0 SDK. (Optix 2.5 is most compatible with CUDA 4.0)
  • *** If you want to build Optix.NET for 64-bit you must install the 64-bit version ***
    
    • The 64-bit CUDA 4.0 SDK will install both 32-bit and 64-bit versions
  • http://developer.nvidia.com/cuda-toolkit-40
• Install 32-bit Nvidia Optix 2.5 SDK.
  • this will install both 32-bit and 64-bit libs
  • http://developer.nvidia.com/optix-download

Environment setup:

• Make sure “CUDA_PATH_V4_0” exists and points to your CUDA 4.0 installation pat
  • Ex: C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v4.0
• Set "OPTIX_PATH" environment variable to your Optix 2.5 installation.
  • Ex: C:\Program Files (x86)\NVIDIA Corporation\OptiX SDK 2.5.0