Commit Graph

5 Commits

Author SHA1 Message Date
Emil Ernerfeldt f46926aaf1
Improve texture filtering by doing it in gamma space (#7311)
* Closes https://github.com/emilk/egui/pull/5839

This makes some transparent images look a lot nicer when blended:


![image](https://github.com/user-attachments/assets/7f370aaf-886a-423c-8391-c378849b63ca)

Cursive text will also look nicer.

This unfortunately changes the contract of what
`register_native_texture` expects

---------

Co-authored-by: Adrian Blumer <blumer.adrian@gmail.com>
2025-07-07 17:46:27 +02:00
Alexander Nadeau 6c922f72a8
Fix text distortion on mobile devices/browsers with `glow` backend (#6893)
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Did not test on platforms other than my phone, but I can't imagine it
causing problems. AFAIK if highp isn't supported then `precision highp
float;` needs to still not cause the program to fail to link/compile or
anything; it should just silently use some other precision.

* Fixes https://github.com/emilk/egui/issues/4268 for me but I only
tested it on a native Android app and I don't know whether backends
other than glow are affected.
* [x] I have followed the instructions in the PR template (but the
change is trivial so I'm just doing it from the master branch)

Before:

![image](https://github.com/user-attachments/assets/9f449749-5a48-4e9c-aef0-7a8ac3912eb6)

After:

![image](https://github.com/user-attachments/assets/544e5977-13e0-411a-bccf-b15a15289e28)
2025-04-30 14:12:08 +02:00
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
Emil Ernerfeldt 4ac1e28eae
Improve text redering and do all color operation in gamma space (#2071) 2022-09-24 17:53:11 +02:00
Emil Ernerfeldt 041f2e64ba
Move all crates into a `crates` directory (#1940) 2022-08-20 10:41:49 +02:00