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Alex a7be8a2655
Prefer UVec2 when working with texture dimensions (#11698) 
# Objective

The physical width and height (pixels) of an image is always integers,
but for `GpuImage` bevy currently stores them as `Vec2` (`f32`).
Switching to `UVec2` makes this more consistent with the [underlying
texture data](https://docs.rs/wgpu/latest/wgpu/struct.Extent3d.html).

I'm not sure if this is worth the change in the surface level API. If
not, feel free to close this PR.

## Solution

- Replace uses of `Vec2` with `UVec2` when referring to texture
dimensions.
- Use integer types for the texture atlas dimensions and sections.


[`Sprite::rect`](a81a2d1da3/crates/bevy_sprite/src/sprite.rs (L29))
remains unchanged, so manually specifying a sub-pixel region of an image
is still possible.

---

## Changelog

- `GpuImage` now stores its size as `UVec2` instead of `Vec2`.
- Texture atlases store their size and sections as `UVec2` and `URect`
respectively.
- `UiImageSize` stores its size as `UVec2`.

## Migration Guide

- Change floating point types (`Vec2`, `Rect`) to their respective
unsigned integer versions (`UVec2`, `URect`) when using `GpuImage`,
`TextureAtlasLayout`, `TextureAtlasBuilder`,
`DynamicAtlasTextureBuilder` or `FontAtlas`.
2024-02-25 15:23:04 +00:00
..
bevymark.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
many_animated_sprites.rs Prefer UVec2 when working with texture dimensions (#11698) 2024-02-25 15:23:04 +00:00
many_buttons.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
many_cubes.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
many_foxes.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
many_gizmos.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
many_glyphs.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
many_lights.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
many_sprites.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
README.md Add a stress test profile (#6901) 2022-12-20 15:59:41 +00:00
text_pipeline.rs Rename bevy_render::Color to LegacyColor (#12069) 2024-02-24 21:35:32 +00:00
transform_hierarchy.rs Remove some old references to CoreSet (#9833) 2023-09-18 01:07:11 +00:00
warning_string.txt Added performance warning when running stress test examples in debug mode (#5029) 2022-07-13 19:13:46 +00:00

README.md

Stress tests

These examples are used to stress test Bevy's performance in various ways. These should be run with the "stress-test" profile to accurately represent performance in production, otherwise they will run in cargo's default "dev" profile which is very slow.

Example Command

cargo run --profile stress-test --example <EXAMPLE>