vello

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.

Basically, an improved API that targets a more modern graphics pipeline and has better support outside of browsers. You can write a graphics engine or custom renderer in Rust and have it ship across desktop and web. See Vello for example: https://github.com/linebender/vello

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

It's possible you ran into problems with large pathtags, fixed by [235], but that hasn't been merged yet. With that and some other tweaks (we still have to manually adjust buffer sizes, but that will soon be dynamic again as well), we are able to render the paris-30k test file, which has ~50k paths and almost a million path segments. We will also soon be special-casing rectangles. Might be worth rerunning your experiment in a few weeks when all this has landed. In any case, glad for your interest! [235]: https://github.com/linebender/vello/pull/235

> Vello uses this fairly extensively What is Vello? I'm guessing you mean this: https://github.com/linebender/vello