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https://github.com/bevyengine/bevy
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# Objective
Currently text is recomputed unnecessarily on any changes to its color,
which is extremely expensive.
## Solution
Split up `TextStyle` into two separate components `TextFont` and
`TextColor`.
## Testing
I added this system to `many_buttons`:
```rust
fn set_text_colors_changed(mut colors: Query<&mut TextColor>) {
for mut text_color in colors.iter_mut() {
text_color.set_changed();
}
}
```
reports ~4fps on main, ~50fps with this PR.
## Migration Guide
`TextStyle` has been renamed to `TextFont` and its `color` field has
been moved to a separate component named `TextColor` which newtypes
`Color`.
9 lines
438 B
Markdown
9 lines
438 B
Markdown
# B0005
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A runtime warning.
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Separate font atlases are created for each font and font size. This is expensive, and the memory is never reclaimed when e.g. interpolating `TextFont::font_size` or `UiScale::scale`.
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If you need to smoothly scale font size, use `Transform::scale`.
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You can disable this warning by setting `TextSettings::allow_dynamic_font_size` to `true` or raise the limit by setting `TextSettings::soft_max_font_atlases`.
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