Update `README.md`

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Patrick Walton 2020-05-07 21:46:03 -07:00
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![Logo](https://github.com/servo/pathfinder/raw/master/resources/textures/pathfinder-logo.png)
Pathfinder 3 is a fast, practical, GPU-based rasterizer for fonts and vector graphics using OpenGL
3.0+, OpenGL ES 3.0+, or Metal.
3.0+, OpenGL ES 3.0+, WebGL 2, and Metal.
Please note that Pathfinder is under heavy development and is incomplete in various areas.
@ -11,8 +11,8 @@ Please note that Pathfinder is under heavy development and is incomplete in vari
Pathfinder contains a library that implements a subset of the
[HTML canvas API](https://developer.mozilla.org/en-US/docs/Web/API/Canvas_API). You can quickly add
vector rendering to any Rust app with it. See the `examples/canvas_minimal` for a small example of
usage.
vector rendering to any Rust app with it. The library is available on `crates.io`. See
`examples/canvas_minimal` for a small example of usage.
### Demos
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* Fast GPU rendering, even at small pixel sizes. Even on lower-end GPUs, Pathfinder typically
matches or exceeds the performance of the best CPU rasterizers. The difference is particularly
pronounced at large sizes, where Pathfinder regularly achieves multi-factor speedups. All shaders
have no loops and minimal branching.
pronounced at large sizes, where Pathfinder regularly achieves multi-factor speedups.
* GPU compute-based rendering, where available. Pathfinder can optionally use compute shaders to
achieve better performance than what the built-in GPU rasterization hardware can provide. Compute
shader capability is not required, and all features are available without it.
* Advanced font rendering. Pathfinder can render fonts with slight hinting and can perform subpixel
antialiasing on LCD screens. It can do stem darkening/font dilation like macOS and FreeType in
@ -66,7 +69,16 @@ Pathfinder, the demo is under heavy development and has known bugs.)
Running the demo is as simple as:
$ cd demo/native
$ RUSTFLAGS="-C target-cpu=native" cargo run --release
$ cargo run --release
Running examples (e.g. `canvas_nanovg`) can be done with:
$ cd examples/canvas_nanovg
$ cargo run --release
Pathfinder libraries are available on `crates.io` with the `pathfinder_` prefix (e.g.
`pathfinder_canvas`), but you may wish to use the `master` branch for the latest features and bug
fixes.
## Community