Dawn, a WebGPU implementation

Dawn is an open-source and cross-platform implementation of the work-in-progress 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 on Windows 10
  • Metal on macOS and iOS
  • Vulkan on Windows, Linux, ChromeOS, Android and Fuchsia
  • OpenGL as best effort where available
• 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).

Helpful links:

• Dawn bug tracker if you find issues with Dawn.
• Tint bug tracker if you find issues with Tint.
• Dawn's mailing list for other discussions related to Dawn.
• Dawn's source code
• Dawn's Matrix chatroom for live discussion around contributing or using Dawn.
• WebGPU's Matrix chatroom
• Tint mirror for standalone usage.

Documentation table of content

Developer documentation:

• Dawn overview
• Building
• Contributing
• Code of Conduct
• Testing Dawn
• Debugging Dawn
• Dawn's infrastructure
• Dawn errors
• Tint experimental extensions

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

Status

(TODO)

License

Apache 2.0 Public License, please see LICENSE.

Disclaimer

This is not an officially supported Google product.