hummawhite/vulkan-restir-pt

Vulkan ReSTIR Path Tracer / Rebuild of EIDOLA, from sratch [2023-2024]

Vulkan ReSTIR PT

This is another Vulkan ray tracing project, aiming for rebuilding EIDOLA completely from scratch and adding ReSTIR PT (GRIS) for indirect illumination.

Build and Run

• Clone git clone [this repo] --recursive
• Run ./build.bat (for Windows only)
• Extract .zip test scene files in ./res/model/
  • VeachAjar from paper's modified version of 'Veach Ajar' scene
  • You will need to copy ./res/ to your IDE's working directory for the resources to be correctly loaded

Progress

• Standard path tracing with NEE and MIS
• ReSTIR DI
  • Temporal reuse
  • Spatial reuse
• ReSTIR GI
  • Temporal reuse
  • Spatial reuse
• ReSTIR PT
  • Reconnection vertex generation
  • Shift mapping
    • Reconnection
    • Random Replay
    • Hybrid
  • Temporal reuse
  • Spatial reuse
  • MIS
• Support for both ray tracing pipeline & ray query
• Batched G-buffer draw calls and bindless resource fetching
• Cache & memory improvement as RTXDI
• Improve scene definition & GLTF loader
• Async command recording & submission
• Denoiser?
• Make separate ZVK Vulkan wrapper
• Direct3D 12 backend? (Making this project a multi-backend ray tracing engine)

Algorithm

Reusing Paths

Path Sample Generation

Result

ReSTIR PT (Not all correct)

Compared to Paper

More

vulkan-restir-pt's Issues

scenes?

Hello.
I built exe and started it.
Program fails with message
[Scene res/model/VeachAjar/ajar_fake2.xml]
[Error:Scene: failed to load]

Can you add this scene to repository?
Or add link where to get it

build error

cmake version 3.27.7
gcc version 12.2.0 (Debian 12.2.0-14)

In file included from /pr/Graphics/Vulkan-ReSTIR-PT/ext/assimp/include/assimp/ParsingUtils.h:54,
                 from /pr/Graphics/Vulkan-ReSTIR-PT/ext/assimp/code/AssetLib/AMF/AMFImporter_Geometry.cpp:45:
In function ‘char_t ai_tolower(char_t) [with char_t = const char*]’,
    inlined from ‘void Assimp::AMFImporter::ParseNode_Coordinates(Assimp::XmlNode&)’ at /pr/Graphics/Vulkan-ReSTIR-PT/ext/assimp/code/AssetLib/AMF/AMFImporter_Geometry.cpp:168:75:
/pr/Graphics/Vulkan-ReSTIR-PT/ext/assimp/include/assimp/StringUtils.h:220:53: error: offset ‘32’ outside bounds of constant string [-Werror=array-bounds]
  220 |     return (in >= (char_t)'A' && in <= (char_t)'Z') ? (char_t)(in + 0x20) : in;
      |            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors
gmake[2]: *** [code/CMakeFiles/assimp.dir/build.make:1056: code/CMakeFiles/assimp.dir/AssetLib/AMF/AMFImporter_Geometry.cpp.o] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:204: code/CMakeFiles/assimp.dir/all] Error 2
gmake: *** [Makefile:136: all] Error 2