vello
accesskit
vello | accesskit | |
---|---|---|
31 | 24 | |
1,945 | 926 | |
3.7% | 1.6% | |
9.4 | 8.8 | |
4 days ago | about 24 hours ago | |
Rust | Rust | |
Apache License 2.0 | BSD 3-clause "New" or "Revised" License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
vello
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Rive Renderer – now open source and available on all platforms
I'm looking forward to doing careful benchmarking, as this renderer absolutely looks like it will be competitive. It turns out that is really hard to do, if you want meaningful results.
My initial take is that performance will be pretty dependent on hardware, in particular support for pixel local storage[1]. From what I've seen so far, Apple Silicon is the sweet spot, as there is hardware support for binning and sorting to tiles, and then asking for fragment shader execution to be serialized within a tile works well. On other hardware, I expect the cost of serializing those invocations to be much higher.
One reason we haven't done deep benchmarking on the Vello side is that our performance story is far from done. We know one current issue is the use of device atomics for aggregating bounding boxes. We have a prototype implementation [2] that uses monoids for segmented reduction. Additionally, we plan to do f16 math (which should be a major win especially on mobile), as well as using subgroups for various prefix sum steps (subgroups are in the process of landing in WebGPU[3]).
Overall, I'm thrilled to see this released as open source, and that there's so much activity in fast GPU vector graphics rendering. I'd love to see a future in which CPU path rendering is seen as being behind the times, and this moves us closer to that future.
[1]: https://dawn.googlesource.com/dawn/+/refs/heads/main/docs/da...
[2]: https://github.com/linebender/vello/issues/259
[3]: https://github.com/gpuweb/gpuweb/issues/4306
- WebKit Switching to Skia for 2D Graphics Rendering
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Looking for this. html + css rendering through wgpu.
Dioxus is working on this with blitz. It's leveraging wgpu through the linebender group's Vello renderer. Still in early stages.
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A note on Metal shader converter
If you're doing advanced compute work (including lock-free data structures), then it's best effort.
https://github.com/linebender/vello/issues/42 is an issue from when Vello (then piet-gpu) had a single-pass prefix sum algorithm. Looking back, I'm fairly confident that it's a shader translation issue and that it wouldn't work with MoltenVK either, but we stopped investigating when we moved to a more robustly portable approach.
- Vello: An experimental WebGPU-based compute-centric 2D renderer in Rust
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XUL Layout has been removed from Firefox
There are a number of up-and-coming Rust-based frameworks in this niche:
- https://github.com/iced-rs/iced (probably the most usable today)
- https://github.com/vizia/vizia
- https://github.com/marc2332/freya
- https://github.com/linebender/xilem (currently very incomplete but exciting because it's from a team with a strong track record)
What is also exciting to me is that the Rust GUI ecosystem is in many cases building itself up with modular libraries. So while we have umpteen competing frameworks they are to a large degree all building and collaborating on the same foundations. For example, we have:
- https://github.com/rust-windowing/winit (cross-platform window creation)
- https://github.com/gfx-rs/wgpu (abstraction on top of vulkan/metal/dx12)
- https://github.com/linebender/vello (a canvas like imperative drawing API on top of wgpu)
- https://github.com/DioxusLabs/taffy (UI layout algorithms)
- https://github.com/pop-os/cosmic-text (text rendering and editing)
- https://github.com/AccessKit/accesskit (cross-platform accessibility APIs)
In many cases there a see https://blessed.rs/crates#section-graphics-subsection-gui for a more complete list of frameworks and foundational libraries)
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Drawing and Annotation in Rust
blessed.rs lists these three crates for 2D drawing: - https://lib.rs/crates/femtovg - https://lib.rs/crates/skia-safe - https://github.com/linebender/vello
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Recommended UI framework to draw many 2D lines?
Vello (https://github.com/linebender/vello) which uses wgpu to render Edit: just saw you require images. Vello doesn't support those yet
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Announcing piet-glow, a GL-based implementation of Piet for 2D rendering
How does this relate to Vello? Both target raw-window-handle for winit compatibility. Vello uses WGPU vs piet-glow using GL.
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Is WGPU actually a good idea yet?
Finally, maybe vello could help you with ideas. It's not production ready yet, but they have some interesting ideas for 2D rendering using wgpu.
accesskit
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Looking for this. html + css rendering through wgpu.
If you were to implement this yourself, i'd look into either swash or cosmic-text for the text rendering stack (this is one of the things you really don't want to write from the ground up). For accessibility, AccessKit has quickly become the standard for communicating with crossplatform accessibility APIs in rust GUI. lightningcss (or its lower level counterpart cssparser) are both decent options for CSS parsing. Taffy handles some of what browsers offer for a layout engine, but is still being worked on.
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JetBrains Noria
> Fleet relies on the Java AWT/Swing framework to get a window from an operating system, but it doesn’t use the Java platform for managing its GUI components besides one JFrame and JPanel on top of it.
This is a terrible decision that is going to bite them in the long run. Doing things this way makes it far, far more difficult to implement accessibility, and regulations on this are only going to get stricter.
Implementing accessibility for a framework like that would involve three separate implementations for three separate platforms and the need to interface with D-Bus, COM and Objective C, from Java. I imagine that the latter two would be particularly difficult, considering how bad Java's FFI support is. It's not just calling methods either, you'd actually need to implement your own classes that conform to the relevant COM interfaces / Objective C protocols. There are libraries that can help with this[1], but I don't think they would work particularly well for something as complex as a code editor.
[1] https://github.com/AccessKit/accesskit
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fltk-accesskit: AccessKit integration for fltk
fltk-accesskit is an accesskit integration crate for fltk-rs, the gui crate. It's implemented as an external crate to allow for more experimentation before stabilizing the api, especially since fltk is at version 1.4.
- AccessKit - Cross-platform accessibility infrastructure
- Emerging Rust GUI libraries in a WASM world
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We're building a browser when it's supposed to be impossible
Libraries for a lot of this stuff exist (albeit in many cases not very mature yet):
- https://github.com/pop-os/cosmic-text does text layout (which Taffy explicitly considers out of scope)
- https://github.com/AccessKit/accesskit does accessibility
- https://github.com/servo/rust-cssparser does value-agnostic CSS parsing (it will parse the general syntax but leaves value parsing up to the user, meaning you can easily add support for whatever properties you what). Libraries like https://github.com/parcel-bundler/lightningcss implement parsing for the standard css properties.
- There are crates like https://github.com/BurntSushi/bstr and https://docs.rs/wtf8/latest/wtf8/ for working with non-unicode text
We are planning to add a C API to Taffy, but tbh I feel like C is not very good for this kind of modularised approach. You really want to be able to expose complex APIs with enforced type safety and this isn't possible with C.
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XUL Layout has been removed from Firefox
There are a number of up-and-coming Rust-based frameworks in this niche:
- https://github.com/iced-rs/iced (probably the most usable today)
- https://github.com/vizia/vizia
- https://github.com/marc2332/freya
- https://github.com/linebender/xilem (currently very incomplete but exciting because it's from a team with a strong track record)
What is also exciting to me is that the Rust GUI ecosystem is in many cases building itself up with modular libraries. So while we have umpteen competing frameworks they are to a large degree all building and collaborating on the same foundations. For example, we have:
- https://github.com/rust-windowing/winit (cross-platform window creation)
- https://github.com/gfx-rs/wgpu (abstraction on top of vulkan/metal/dx12)
- https://github.com/linebender/vello (a canvas like imperative drawing API on top of wgpu)
- https://github.com/DioxusLabs/taffy (UI layout algorithms)
- https://github.com/pop-os/cosmic-text (text rendering and editing)
- https://github.com/AccessKit/accesskit (cross-platform accessibility APIs)
In many cases there a see https://blessed.rs/crates#section-graphics-subsection-gui for a more complete list of frameworks and foundational libraries)
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A new open-sourcing project launches!!! A declarative, compose-based and cross-platform GUI
Using HarfBuzz makes sense. But if you're looking for a pure-Rust alternative, I hear cosmic-text (made by Pop!_OS) is good. There's also AccessKit for accessibility.
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GPU-Backed User Interfaces
There are efforts to support a cross platform accessibility library:
https://github.com/AccessKit/accesskit
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Egui 0.20 Released
egui is an easy-to-use immediate mode GUI for Rust, and I just released 0.20. It's a big release!
There is now support for AccessKit (https://github.com/AccessKit/accesskit) which brings accessibility to egui (a first for an immediate mode GUI?).
There is also better table support, nicer keyboard shortcut handling, better looking text in light mode (still not great, but better).
See more in the changelog: https://github.com/emilk/egui/blob/master/CHANGELOG.md
Try it out at www.egui.rs
What are some alternatives?
nanovg - Antialiased 2D vector drawing library on top of OpenGL for UI and visualizations.
widevine-l3-guesser
msdfgen - Multi-channel signed distance field generator
elm-architecture-tutorial - How to create modular Elm code that scales nicely with your app
Vrmac - Vrmac Graphics, a cross-platform graphics library for .NET. Supports 3D, 2D, and accelerated video playback. Works on Windows 10 and Raspberry Pi4.
femtovg
troika - A JavaScript framework for interactive 3D and 2D visualizations
gyroflow - Video stabilization using gyroscope data
tinyraytracer - A brief computer graphics / rendering course
Nu - Repository hosting the open-source Nu Game Engine and related projects.
gpuweb - Where the GPU for the Web work happens!
chibi-scheme - Official chibi-scheme repository