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CSS-like shadows with offset, spread, and blur #4232

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merged 4 commits into from
Mar 26, 2024
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@emilk emilk commented Mar 26, 2024

This makes epaint::Shadow more like CSS's box-shadow, adding offset and replacing extrusion with blur and spread.

The offsets make for nice drop-shadow effects.

Old shadows:
old-shadows

New shadows:
new-shadows-full

Tweaks the default shadows for windows and popups to be smaller,
and with an offset
@emilk emilk added egui epaint style visuals and theming labels Mar 26, 2024
@emilk emilk merged commit c530504 into master Mar 26, 2024
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@emilk emilk deleted the emilk/css-shadow branch March 26, 2024 09:37
emilk added a commit to rerun-io/rerun that referenced this pull request Mar 26, 2024
### What
Based on:
* emilk/egui#4232 
* emilk/egui#4230 
* emilk/egui#4233 

## Before
<img width="402" alt="Screenshot 2024-03-26 at 11 17 57"
src="https://github.com/rerun-io/rerun/assets/1148717/3a5f8d1d-ecff-49fe-8d7e-2a8a85289526">
<img width="581" alt="Screenshot 2024-03-26 at 11 17 40"
src="https://github.com/rerun-io/rerun/assets/1148717/fad07dd5-076a-4bf0-a8cd-dcb1369eddf8">

## After

<img width="599" alt="Screenshot 2024-03-26 at 11 20 36"
src="https://github.com/rerun-io/rerun/assets/1148717/dc4cc6d4-a117-4b6b-81b3-3fff6f64f247">

<img width="421" alt="Screenshot 2024-03-26 at 11 20 43"
src="https://github.com/rerun-io/rerun/assets/1148717/857b4767-17cd-4c23-8e28-4bd03881faed">

### Checklist
* [x] I have read and agree to [Contributor
Guide](https://github.com/rerun-io/rerun/blob/main/CONTRIBUTING.md) and
the [Code of
Conduct](https://github.com/rerun-io/rerun/blob/main/CODE_OF_CONDUCT.md)
* [x] I've included a screenshot or gif (if applicable)
* [x] I have tested the web demo (if applicable):
* Using newly built examples:
[app.rerun.io](https://app.rerun.io/pr/5680/index.html)
* Using examples from latest `main` build:
[app.rerun.io](https://app.rerun.io/pr/5680/index.html?manifest_url=https://app.rerun.io/version/main/examples_manifest.json)
* Using full set of examples from `nightly` build:
[app.rerun.io](https://app.rerun.io/pr/5680/index.html?manifest_url=https://app.rerun.io/version/nightly/examples_manifest.json)
* [x] The PR title and labels are set such as to maximize their
usefulness for the next release's CHANGELOG
* [x] If applicable, add a new check to the [release
checklist](https://github.com/rerun-io/rerun/blob/main/tests/python/release_checklist)!

- [PR Build Summary](https://build.rerun.io/pr/5680)
- [Docs
preview](https://rerun.io/preview/003d45654e7ddf9335aa82d9c50d67dd5a0695c6/docs)
<!--DOCS-PREVIEW-->
- [Examples
preview](https://rerun.io/preview/003d45654e7ddf9335aa82d9c50d67dd5a0695c6/examples)
<!--EXAMPLES-PREVIEW-->
- [Recent benchmark results](https://build.rerun.io/graphs/crates.html)
- [Wasm size tracking](https://build.rerun.io/graphs/sizes.html)
hacknus pushed a commit to hacknus/egui that referenced this pull request Oct 30, 2024
This makes `epaint::Shadow` more like CSS's box-shadow, adding `offset`
and replacing `extrusion` with `blur` and `spread`.

* Closes emilk#3047

The offsets make for nice drop-shadow effects.

Old shadows:
<img width="1447" alt="old-shadows"
src="https://github.com/emilk/egui/assets/1148717/8a30f7b9-fb9d-49ea-9a2f-9367a60c448a">

New shadows:
<img width="1447" alt="new-shadows-full"
src="https://github.com/emilk/egui/assets/1148717/28cc9c1e-b0de-4c5b-a705-22e52c556584">
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