wgpu-rs VS gfx

You could start with one of examples from wgpu and tinker with it to see if that's your thing. Ie. copy hello-triangle and add more triangles / make them move, etc.

wgpu-rs (https://github.com/gfx-rs/wgpu-rs) is probably closer to what you're looking for, it's a "high level wrapper" over wgpu-core (Which implements "WebGPU", an upcoming browser API for graphics using gfx-rs, and AIUI "implements" means this is what a browser might use to actually call a graphics API when javascript uses webGPU, although if you're compiling for wasm it could just call the browser APIs). It can run natively, ignore the fact it has "Web" in the name

rust-gpu) is used for compiling a compute shader written in Rust to SPIR-V. wgpu-rs is used natively for running the GPU computation.

For web assembly there is the unofficial bevy_webgl2 plugin. Official bevy web assembly support would probably use the wgpu webgl backend, which still needs some work, and is currently untested in bevy.

We let wgpu https://github.com/gfx-rs/wgpu-rs handle our graphics backend abstraction, so our OpenGL support will come whenever they implement and release it. Currently, it seems to be a WIP.

It's the same thing, the Rust implementation is just called[wgpu](https://wgpu.rs/)

Same as with GLSL, isn't it? What we do in wgpu-rs examples, and that's something I expect to see more widely, is having an integration test that just parses all the WGSL in the project and reports errors. Ideally though, we'd have a set of IDE plugins to do the parsing and report errors right where you type the code. We'd appreciate any help to get these started!

Also you could use an existing cross-platform graphics library, e.g. wgpu-rs. It supports Vulkan, Metal, DirectX, OpenGL and WebGPU. Oh and it seems to allow switching backends at compile-time via the WGPU_BACKEND environment variable, so maybe check out how they're doing it.

Understand Wayland concepts: Familiarize yourself with the basic concepts and principles of Wayland. This will help you gain a solid understanding of how the system works. You can refer to the official Wayland documentation (https://wayland.freedesktop.org/docs/html/) and the Wayland book (https://wayland-book.com/). Learn Rust: If you're not already proficient in Rust, take some time to learn the language. The Rust Book (https://doc.rust-lang.org/book/) is a great place to start. Study existing Wayland compositors: Since you mentioned Anvil and smallvil, you can study their source code to gain insights into how they're designed and implemented. Try to understand the structure and how different components interact with each other. Dive into Smithay: Smithay (https://github.com/Smithay/smithay) is a Rust library for building Wayland compositors. Familiarize yourself with the library and its components. You can start by studying the provided examples and reading the API documentation. Learn graphics programming: Since you're interested in graphics effects, you'll need to learn about graphics programming concepts, such as shaders, framebuffers, and texturing. Vulkan (https://www.vulkan.org/) is a popular graphics API that you can use with Rust. Check out the following resources to learn more about Vulkan and graphics programming in Rust: Vulkan Tutorial (https://vulkan-tutorial.com/) gfx-rs (https://github.com/gfx-rs/gfx), a Rust graphics library Vulkano (https://github.com/vulkano-rs/vulkano), a safe, pure-Rust wrapper around the Vulkan API Start small: Break down the compositor project into smaller, manageable tasks. Begin by implementing basic functionality, like setting up a window and drawing simple shapes. Gradually add more features, such as input handling and window management. Ask for help: Join the Wayland and Rust communities to ask questions and seek advice. You can find them on forums, mailing lists, and chat platforms like Discord or IRC. The Wayland mailing list (https://lists.freedesktop.org/mailman/listinfo/wayland-devel) and the Rust programming subreddit (https://www.reddit.com/r/rust/) are good places to start. Iterate and experiment: As you progress, keep experimenting with different graphics effects and shaders. Try to implement the features you're interested in, such as blur, window previews, and window switching.

For users of old school crate _gfx_ v0.18 I have PRs that will fix this issue without any additional changes (https://github.com/gfx-rs/gfx/pull/3791) though I suppose there aren't too many such users nowadays...

The gfx-backend-* READMEs each have a graphic explanation that is very useful. As others have said, the best way to handle this is with a flipped viewport, but I've never seen a satisfactory explanation as to why this doesn't mess with front/back faces and culling.

From https://github.com/gfx-rs/gfx

https://github.com/gfx-rs/gfx#hardware-abstraction-layer

Searching through the source code for wgpu and its dependencies, the error is coming from the gfx-rs DirectX 11 backend. I am guessing this is because of a limitation of DirectX 11. The easiest thing to do would probably be to try switching to the DirectX 12 or Vulkan backends.

Looks like they are using https://github.com/ggez/ggez which in turn uses https://github.com/gfx-rs/gfx for low-level drawing to the screen

There is also gfx-rs, which should be easier to use than opengl.

https://crates.io/crates/tiny-skia

You can put things together pretty easily with these libs. And they also let you skip the gpu boilerplate (I should note that tiny-skia works only in the CPU).

Lastly, you have shader programming (OpenGL, Vulkan, etc.). If you're writing "production code" you'll have to do some setting up of the GPU, and the actual graphics code will be in a separate shader language. Shader languages are similar to C but with restrictions that allow for a high level of parallism, making it extremely fast. If you want to get started with this I'd recommend playing around on a site like shadertoy[1] where you can start writing shaders right away. I haven't done much of this myself but as far as Rust goes I've seen a lot of references to the gfx crate:

https://crates.io/crates/gfx

I hope this helps

[1] https://www.shadertoy.com/