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49 lines
2.1 KiB
Markdown
49 lines
2.1 KiB
Markdown
# piet-gpu
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This repo contains the new prototype for a new compute-centric 2D GPU renderer.
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It succeeds the previous prototype, [piet-metal].
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The latest version is a middleware for [`wgpu`]. This is used as the rendering backend for
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[xilem], a UI toolkit.
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<!-- TODO: Are we transitioning to more production? If so, should we rewrite the README a bit? -->
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## Goals
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The main goal is to answer research questions about the future of 2D rendering:
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- Is a compute-centered approach better than rasterization ([Direct2D])? How much so?
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- To what extent do "advanced" GPU features (subgroups, descriptor arrays) help?
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- Can we improve quality and extend the imaging model in useful ways?
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## Blogs and other writing
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Much of the research progress on piet-gpu is documented in blog entries. See [doc/blogs.md](doc/blogs.md) for pointers to those.
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There is a much larger and detailed [vision](doc/vision.md) that explains the longer-term goals of the project, and how we might get there.
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## History
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A prior incarnation used a custom cross-API hal. An archive of this version can be found in the branches [`custom-hal-archive-with-shaders`] and [`custom-hal-archive`].
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## License and contributions.
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The piet-gpu project is dual-licensed under both [Apache 2.0](LICENSE-APACHE) and [MIT](LICENSE_MIT) licenses.
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In addition, the shaders are provided under the terms of the [Unlicense](UNLICENSE). The intent is for this research to be used in as broad a context as possible.
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The dx12 backend was adapted from piet-dx12 by Brian Merchant.
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Contributions are welcome by pull request. The [Rust code of conduct] applies.
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[piet-metal]: https://github.com/linebender/piet-metal
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[direct2d]: https://docs.microsoft.com/en-us/windows/win32/direct2d/direct2d-portal
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[`wgpu`]: https://wgpu.rs/
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[xilem]: https://github.com/linebender/xilem/
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[rust code of conduct]: https://www.rust-lang.org/policies/code-of-conduct
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[`custom-hal-archive-with-shaders`]: https://github.com/linebender/piet-gpu/tree/custom-hal-archive-with-shaders
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[`custom-hal-archive`]: https://github.com/linebender/piet-gpu/tree/custom-hal-archive
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