Egui – An immediate mode GUI written in Rust

Demo pages like this are fun, and technically impressive when compiled to a browser environment. But I suffer from a lack of imagination so these widget demos don't really help me envision what an egui-powered app can do or might look like.

Does anyone have any examples of fun things that use egui?

Drag values are amazing to use on mobile! Great demo, combines feature showcase and a great starter template.

I use it in Sharpview. It's really for GUI programs, not web pages. It redraws everything on every frame, so it's most useful for 2D overlays on 3D game-type programs. For that, it's pretty good.

It's one pass. As a result, layouts which are ordered left to right and top to bottom work well, but ones which displace or resize items above or to the left don't work well. Egui tries to fix things up on the next frame, thereby getting the effect of a multipass layout system, but sometimes that results in mis-positioning and jitter on alternate frames. As long as you respect that limitation, good results can be obtained.

It needs some kind of dialog builder tool so that you don't have to write code for each dialog box. Someone was working on that about two years ago. Should find that project again. Meanwhile, lots of repetitive code to write.

Note that winit, wgpu, egui, and their friends all have to advance in version lockstep. All those projects routinely make breaking API changes, and when this happens, it takes a month or two before all the others catch up. Again, as long as you know this, it's not too bad. It would be nice to see some of those packages reach version 1.0.

Limited internationalization support. For example, trying to paste in مرحبًا (Arabic for "hello") just gives me tofu squares.

Text shaping is anything but easy. Harfbuzz is probably the state of the art open source solution - https://github.com/harfbuzz/harfbuzz

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