RTXGI SDK Change Log

2.2.0

RTXGI

Bug fix for the brdf.h PDF calculation and epsilon size.
Addition of global surface properties override for roughness and metalness values.
DLL signing verification implementation for the NRC integration.
Auto-enablement of detected raytracing-capable hardware when using the pathtracer sample.
Documentation update.

SHaRC

Update to version 1.3.1.0.
The radiance cache now relies on frame-based accumulation. The user should provide the amount of frames for accumulation to the SharcResolveEntry() invocation as well as the amount of frames to keep the records which do not receive any updates in the cache before they get evicted. Frame limits can be tied to FPS. This change also improves responsiveness of the cache to the lighting changes.
Robust accumulation which works better with high sample count
Documentation updates, including debugging tips and parameters tweaking
Misc bug fixes

NRC

Update to v0.12.1
Update dependencies including CUDA Toolkit to v12.5.1.
Modifications to Nrc.hlsli to comply with Slang requirements for global variables and macro defines.
Addition of debug visualization of the cache as part of the ResolveModes.
Removal of queryVertexIndex debug mechanism in favour of the Resolve pass approach.
Addition of DLL signing verification capabilities.
Bug fix for allowing the context to be recreated internally on scene bounds change.
Documentation update.

2.1.0

Fixed issues

Internal fix for NRC to allow it to run on NVIDIA 20xx series GPUs
Window resizing for the pathtracer sample

API changes

NRC's CountersData buffer is now of type StructuredBuffer
SHARC's VoxelData buffers are now of type StructuredBuffer
SHARC modifications to improve GLSL compatibility

Misc. changes

Readability improvements for the code sample and documentation
Update to dependencies:
- NRD version in use is v4.6.1
- Donut version in use is e053410

2.0.0

Initial release.