raui VS kajiya

I've seen PsichiX experimenting with this in RAUI! I'd start there :)

I've been wanting to try RAUI for replacing imgui as my UI system, but it has no renderer for wgpu.

Check out RAUI (Renderer Agnostic User Interface), it's a UI framework that doesn't care about what renderer you use, meaning that you can provide any renderer you want

demo: https://github.com/PsichiX/raui/tree/master/demos/todo-app

repository: https://github.com/PsichiX/raui

There's also Kajiya, though it's very new and works on a limited range of GPUs.

I don't know how major they are considered, but Embark Studios is doing quite a bit of Rust in the open source space, most notably (IMO) rust-gpu and kajiya

I'm also aware of https://github.com/EmbarkStudios/kajiya/, which has a pretty neat documentation:

> You can't even achieve PS2-era graphics with Rust right now

That's just straight up false:

https://github.com/EmbarkStudios/kajiya

There you go

What do you think of the Kajiya renderer from Embark Studios. Is there a desire from the core developers to improve the plugin and maybe use as a default renderer?

A good example of what you can do with rust-gpu is kajiya from rust-gpu's creators. You'll notice that every shaders are not using complex enum, traits or even vector (no_std) from Rust.

I know nothing about game engines/programming/design, but I have recently read about https://github.com/EmbarkStudios/kajiya and wondered if bevy could benefit from it?

This release constitutes a massive rendering API rework. You can think of it more as a foundation that makes it easier to implement better rendering features in the future.

If you check the release notes[0], you'll see HDR/Bloom support was dropped at the last minute, and several other major rendering features are still pending implementation.

The great part about Bevy is that it's modular, so you can swap out the renderer if you like. There's already several people using Bevy with Embark's kajiya renderer[1].

[0] https://bevyengine.org/news/bevy-0-6/#what-s-next-for-bevy

[1] https://github.com/EmbarkStudios/kajiya