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dawn / dawn / 554184fa16425daed82d6c66f85b8da6cf5e4d80
commit554184fa16425daed82d6c66f85b8da6cf5e4d80[log] [tgz]
authorStephen White <senorblanco@chromium.org>Wed Feb 14 21:11:36 2024 +0000
committerDawn LUCI CQ <dawn-scoped@luci-project-accounts.iam.gserviceaccount.com>Wed Feb 14 21:11:36 2024 +0000
tree61f2c209c2d845ae5c3f66f2a138dace7efc9cdb
parent1b0f28ec95a4f384ed758ddb01024fe3235454a6 [diff]
OpenGL: scale the depthBias value by half.

There is an ambiguity in the GL and Vulkan specs with respect to
depthBias: If a depth value lies between 2^n and 2^(n+1), is the
"exponent of the depth value" in the spec n or n+1? It looks like GL
drivers use n, while the WebGPU CTS is expecting n+1. Scaling the depth
bias value by 0.5 gives results that the WebGPU CTS expects.

Bug: dawn:2076
Change-Id: If2965acd5250b1ed834a0bad260907522c179679
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/174922
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Stephen White <senorblanco@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
3 files changed
tree: 61f2c209c2d845ae5c3f66f2a138dace7efc9cdb
  1. .github/
  2. .vscode/
  3. build_overrides/
  4. docs/
  5. generator/
  6. include/
  7. infra/
  8. scripts/
  9. src/
  10. test/
  11. third_party/
  12. tools/
  13. webgpu-cts/
  14. build
  15. buildtools
  16. testing
  17. .bazelrc
  18. .clang-format
  19. .clang-tidy
  20. .gitattributes
  21. .gitignore
  22. .gitmodules
  23. .gn
  24. AUTHORS
  25. BUILD.bazel
  26. BUILD.gn
  27. CMakeLists.txt
  28. CMakeSettings.json
  29. CODE_OF_CONDUCT.md
  30. codereview.settings
  31. CONTRIBUTING.md
  32. CPPLINT.cfg
  33. DEPS
  34. DIR_METADATA
  35. go.mod
  36. go.sum
  37. go_presubmit_support.py
  38. LICENSE
  39. OWNERS
  40. PRESUBMIT.py
  41. README.chromium
  42. README.md
  43. WORKSPACE.bazel
README.md

Build Status Matrix Space

Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the WebGPU standard. More precisely it implements webgpu.h that is a one-to-one mapping with the WebGPU IDL. Dawn is meant to be integrated as part of a larger system and is the underlying implementation of WebGPU in Chromium.

Dawn provides several WebGPU building blocks:

  • WebGPU C/C++ headers that applications and other building blocks use.
    • The webgpu.h version that Dawn implements.
    • A C++ wrapper for the webgpu.h.
  • A “native” implementation of WebGPU using platforms' GPU APIs: D3D12, Metal, Vulkan and OpenGL. See per API support for more details.
  • A client-server implementation of WebGPU for applications that are in a sandbox without access to native drivers
  • Tint is a compiler for the WebGPU Shader Language (WGSL) that can be used in standalone to convert shaders from and to WGSL.

Helpful links:

Documentation table of content

Developer documentation:

User documentation: (TODO, figure out what overlaps with the webgpu.h docs)

License

BSD 3-Clause License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.