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v.1.3.0

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@fstrugar-nv fstrugar-nv released this 25 Jan 20:44
· 6 commits to main since this release
v.1.3.0
dce238e

HIGHLIGHTS

  • Environment map refactor: dynamic procedural skies, higher resolutions, runtime texture compression and baking of directional lights now supported.
  • SDK updates bringing feature, image quality improvements and bug fixes.
  • Various smaller path tracer updates and features.

DETAILS

Features and changes

  • Grand environment map refactor:
    • Switched to cubemaps as the backing & sampling format (was previously equirectangular 2D texture).
    • Added support for dynamic update and added a procedural environment example based on https://github.com/NVIDIA/Q2RTX sky & clouds.
    • Upgraded importance sampling and RTXDI bridge code to support cubemaps and dynamic environments.
    • Support for importing high res pre-baked .dds cubemap environments (in addition to equirectangular).
    • Support for dynamic GPU-based BC6U compression.
    • All positionless directional-only analytical lights are now automatically baked into environment map, simplifying the lighting code.
    • Added variants of existing scenes with enabled procedural sky.
    • Added a large number of high resolution example environment maps in cubemap format (4096 x 4096 x 6, BC6U) to the media repository.
  • Shader compiler now using ShaderMake.
  • Updated to DXC HLSL compiler v1.7.2308 and fixed & switched all shaders to HLSL 2021.
  • Updated to Streamline v2.2.1 with various performance optimizations and bug fixes.
  • Updated to latest RTXDI sdk-only branch which includes various fixes and refactoring from v2.1.0.
  • Updated to newer NRD version v4.3.6 with a number of image quality upgrades and fixes.
  • Added optional shadow rays NoL fadeout (exposed as part of material options) useful in hiding self-shadowing artifacts with low-poly geometry.
  • Added support for the new Bounded VNDF sampling.
  • Added ability to boost NEE light sampling for primary surface (exposed as UI option).
  • Experimental automated image based regression testing.
    ​

Bug fixes

  • Vulkan stability fixes.
  • OMM memory leak and stability fixes.
  • Various UI and other smaller fixes.
  • Fixed tangent space being wrong with normalmaps in certain cases, causing incorrect lighting.
    ​

Known issues

  • Vulkan port has some missing features such as SER and BC6U runtime compression for environment maps
Assets 3
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