OptiX 4.1.1 released

Please visit https://developer.nvidia.com/optix for more information and the download link for the new OptiX 4.1.1 and previous releases.

Improvements to 4.1.1

  • Reduced host memory usage for scenes with large numbers of geometry instances.
  • Fixed a bug where the primitive index offset was ignored if a GeometryGroup only contained a single GeometryInstance.
  • Fixed a bug in Optix Prime where the least significant bit of the floating point hit distance could be non deterministic for some triangles in a scene, depending on their location in the Bvh.
  • Changed all Optix Prime SDK samples to use CUDA context by default.
  • Fix for scene creation time when sharing Material across many GeometryInstances.
  • Fixed a memory leak on GL interop buffer destroy
  • Fixed an issue where the CUDA compute cache would sometimes not kick in, causing longer compile times.
  • Updated installer framework to avoid security problem at installation time of the SDK.

If you’re setting up a new development environment for OptiX, please find the list of prerequisites and supported combinations of host compilers and CUDA Toolkits inside the OptiX Release Notes on the download site.