v1.1.0 - Githubissues

v1.1.0

HIGHLIGHTS

significant baseline performance (~30%) improvements, plus enabling DLSS for additional boost
various bug fixes, Vulkan improvements and SDK updates

DETAILS:

Optimizations:

Path tracer performance pass: better RR, removing redundant BSDF math, removing SER from non-random (stable) path decomposition pre-pass, etc.
Texture MIP computation is now precomputed
RTXDI now uses compressed GBuffer to significantly reduce memory bandwidth required as well as the size
RTXDI now uses fused ReSTIR DI and ReSTIR GI apply pass to reduce unnecessary loading & processing
Using tiled-swizzled packing for GBuffer and stable planes for more cache-friendly access patterns
various other shader optimizations

Bug fixes:
fix for autoexposure bug causing overdarkening at certain resolutions
fix for RTXDI bug causing blocky artifacts from low probability samples in disoccluded areas (i.e. when quickly turning camera)
fix for RTXDI bug causing incorrect light resampling resulting in overly sharp shadows
various Vulkan-related fixes
various denoising (NRD) fixes
various path decomposition fixes
fix for random number generator seed being same on vertex 0 and 1 in some cases
OMM fix for crash/hang when loading Sponza (https://github.com/NVIDIAGameWorks/Path-Tracing-SDK/issues/6)

Features and changes:

Streamline 2.1.0 integration: DLSS 3
Upgrade to NRD 4.2.1 (see https://github.com/NVIDIAGameWorks/RayTracingDenoiser)
Various other RTXDI fixes & optimizations including upgrade to latest RTXDI sdk-only branch (https://github.com/NVIDIAGameWorks/RTXDI/commits/sdk-only)
Path decomposition debug view (requires setting ENABLE_DEBUG_DELTA_TREE_VIZUALISATION to 1)
Update to latest DXC compiler (https://github.com/microsoft/DirectXShaderCompiler/releases/tag/v1.7.2212.1)
General code cleanup, dropping unused codepaths and etc.

NVIDIAGameWorks / RTX-Path-Tracing