femtovg

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Work in progress!

Antialiased 2D vector drawing library written in Rust. Ported from https://github.com/memononen/nanovg

Most of the implementation is the same as the original C code with some bug fixes, some features added and several parts have been made more Rust-y. Rendering is done via one OpenGl (ES) 3.0+ backend.

Screenshots

Demo

Run with cargo run --example demo

Breakout

Run with cargo run --example breakout

SVG

Run with cargo run --example svg

Text

Run with cargo run --example text

Features

• [x] Anti-aliasing
• [x] Bézier paths filling and stroking
• [x] Solid color and image pattern fills and strokes
• [x] Gradients - box, linear and radial
• [x] Stroke width and miterlimit
• [x] Stroke caps: butt, round and square
• [x] Stroke joins: miter, round and bevel
• [x] Fill rules - EvenOdd/NonZero
• [x] Rectangle scissoring
• [x] Composition modes (SourceOver, SourceIn, SourceOut, Atop, etc..)
• [x] Global alpha
• [x] Text filling and stroking
• [x] Text shaping
• [x] Text alignment: (left center right), (top, middle, alphabetic, bottom)
• [x] Nearest font matching
• [x] Path hit testing
• [x] OpenGl ES2 backend

In progress

• [ ] [Metal backend](https://github.com/adamnemecek/gpucanvas/)

Not supported

• [ ] Stroke dashing
• [ ] Path scissoring
• [ ] Custom shaders
• [ ] 3D transforms
• [ ] Color fonts

License

Licensed under either of * Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0) * MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT) at your option.

Fonts used in examples: - Roboto licensed under Apache license - Entypo licensed under CC BY-SA 4.0. - Amiri licensed under SIL Open Font License, Version 1.1