Port to WebGPU?

[ziriax]

Very nice experiment!

It would be awesome if this project could use https://github.com/gfx-rs/wgpu, then it would be cross-platform 😉

[raphlinus]

The development of this continues in piet-gpu, and the vision document there explains in much more detail the plans for cross-platform.

I think a wgpu port is possible, and am exploring it, but there are rough edges and missing pieces. For my current research purposes, it is inadequate because it's hard to tell whether performance problems are due to WebGPU/wgpu limitations or inherent to the hardware. But when that research is in a better state, it should be possible to use the Vulkan version as a baseline to compare against a wgpu port.

If someone is interested in taking up a wgpu port, a very good place to start is the prefix sum implementation. A variant of that is used in current piet-gpu.