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Jonas Wagner b283b8a560
Introduce dithering to reduce banding (#4497) 
This PR introduces dithering in the egui_glow and egui_wgpu backends to
reduce banding artifacts.

It's based on the approach mentioned in #4493 with the small difference
that the amount of noise is scaled down slightly to avoid dithering
colors that can be represented exactly. This keeps flat surfaces clean.

Exaggerated dithering to show what is happening:
![Screenshot from 2024-05-14
19-09-48](https://github.com/emilk/egui/assets/293536/75782b83-9023-4cb2-99f7-a24e15fdefcc)

Subtle dithering as commited.
![Screenshot from 2024-05-14
19-13-40](https://github.com/emilk/egui/assets/293536/eb904698-a6ec-494a-952b-447e9a49bfda)

Closes #4493
 		2024-07-08 09:57:11 +02:00
..
examples Introduce dithering to reduce banding (#4497) 2024-07-08 09:57:11 +02:00
src Introduce dithering to reduce banding (#4497) 2024-07-08 09:57:11 +02:00
CHANGELOG.md Release 0.28.1 - Tooltip tweaks 2024-07-05 12:09:21 +02:00
Cargo.toml Do no use the ahash reimport (#4504) 2024-05-27 16:24:50 +02:00
README.md Fix typo in `crates/egui_glow/README.md` (#2956) 2024-01-07 16:31:34 +01:00

README.md

egui_glow

Latest version Documentation MIT Apache

This crates provides bindings between egui and glow which allows you to:

  • Render egui using glow on both native and web.
  • Write cross platform native egui apps (with the winit feature).

To write web apps using glow you can use eframe (which uses egui_glow for rendering).

To use on Linux, first run:

sudo apt-get install libxcb-render0-dev libxcb-shape0-dev libxcb-xfixes0-dev libxkbcommon-dev libssl-dev

This crate optionally depends on egui-winit.

Test the example with:

cargo run -p egui_glow --example pure_glow --features=winit,egui/default_fonts