wgpu backend about egui HOT 10 CLOSED

I just uploaded https://github.com/Gonkalbell/egui_wgpu, which is a pretty lazy port of the glium bindings. I haven't gotten around to uploading the documentation to docs.rs or publishing this to crates.io yet, but maybe you can find it useful.

from egui.

Hello!

A good place to start is probably to look at how the rendering is done for Glium: https://github.com/emilk/egui/blob/master/egui_glium/src/painter.rs

from egui.

So I've been working on my implementation here https://github.com/IceSentry/bevy_prototype_egui_plugin

I was about to start the painter based on glium, but I keep getting a crash saying No fonts available. I've been looking everywhere in the glium examples and egui_glium and I can't figure out how fonts are loaded.

from egui.

Also, just to be sure. it seems like implementing App and Backend isn't actually required. Is this true or did I miss something?

from egui.

I figured out my font bug. It was an issue with the ordering of the update calls.

from egui.

it seems like implementing App and Backend isn't actually required

You are correct!

egui::app is a model I introduced for writing backend agnostic apps. The goal is that you can write e.g. a calculator app that implements egui::app::App and then easily compile it for different Egui backends that implements egui::app::Backend (such as egui_glium and egui_web). It is still quite experimental.

from egui.

I've added this section to README.md:

You need to collect egui::RawInput, paint egui::PaintJobs and handle egui::Output. The basic structure is this:

let mut egui_ctx = egui::Context::new();

// game loop:
loop {
    let raw_input: egui::RawInput = my_backend.gather_input();
    let mut ui = egui_ctx.begin_frame(raw_input);
    my_app.ui(&mut ui); // add windows and widgets to `ui` here
    let (output, paint_jobs) = egui_ctx.end_frame();
    my_backend.paint(paint_jobs);
    my_backend.set_cursor_icon(output.cursor_icon);
    // Also see `egui::Output` for more
}

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I saw that, thank you, it was helpful. Now I just need to figure out how to draw the triangles in bevy and I think I'll be set.

from egui.

Oh cool, thanks, I'll look at it. I kind of stopped working on this.

from egui.

It seems like we have TWO wgpu backends for Egui now:

• https://github.com/hasenbanck/egui_wgpu_backend (https://crates.io/crates/egui_wgpu_backend)
• https://github.com/Gonkalbell/egui_winit_wgpu (unpublished)

So I will consider this issue closed!

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