103.1.0
RTX - Common
Improvements
UsdGeomCurve and UsdGeomPoint support
General PrimVar support, including accessing PrimVars in MDL
Improved matte object support (matte shadows & reflections)
Added support for texture cache from servers
Support grey+alpha textures
Support GPU mesh vertex position updates
Various texture streaming bug fixes
Use UDIM tile counts instead of width/height in warning messages about Mari-style UDIMs
Use domelight color when texture is not set
Handle non-watertight nested volumes
Optix denoiser multiview support
Return viewZ as depth for synthetic data
Support for ‘use back material’ Vray2Sided
Add support for compute-only ReShade effects
Added controls for custom irradiance range and display value under mouse pointer
Support Camera Lens Models in Picking and Selection Outline passes
Enable exposure clamping by default
Various optimizations for material parameter authoring
Bug fixes
Fix picking shader crash
Respect SRGB flag for DDS textures and Typeless DDS Formats
Fixed .exr movie capture crash
Fix GPU profiler recording regressions, saving to json python, and docs for nsight
Fix VRay texture conversion crop/clip bug
Fix handling of sbsar archives in MDL entity resolver
Fixing incorrect tonemapper modes: reinhardModifiedToneMap (missing division term) and HejiHableAlu (missing power)
Fix startup crash in GPU profiler
Fix several issues with DomeLightData texture uploads
Fix picking and selection for wireframe
Fixed rendering artifacts in animated meshes with geom subsets
RTX - Real-Time
Improvements
Real-time SSS is now supported as experimental feature and configurable
Native polynomial fisheye projection
Auto-enable + auto-config real-time MGPU
Disable dome light in reflection by default and add an option for Sampled lighting
Bug fixes
Fix GI on Debug White material
Add dome light diffuse contribution back in translucent pass for fractional opacity objects
Fix DLSS not available on MGPU fallback case
Fixed dome light appearance when translucency is disabled
RTX - Interactive (Path Tracing)
Improvements
Light Linking support added
AOV support via USD RenderProduct & RenderVar prims, including in Movie Recorder
Improved performance for volumes
Improved support for sampling of thousands of lights
Support for alpha in textured rect lights