The goal of `bevy_platform_support` is to provide a set of platform
agnostic APIs, alongside platform-specific functionality. This is a high
traffic crate (providing things like HashMap and Instant). Especially in
light of https://github.com/bevyengine/bevy/discussions/18799, it
deserves a friendlier / shorter name.
Given that it hasn't had a full release yet, getting this change in
before Bevy 0.16 makes sense.
- Rename `bevy_platform_support` to `bevy_platform`.
Instead of extracting an individual sprite per glyph of a text spawn or
slice of a nine-patched sprite, add a buffer to store the extracted
slice geometry.
Fixes#16972
* New struct `ExtractedSlice` to hold sprite slice size, position and
atlas info (for text each glyph is a slice).
* New resource `ExtractedSlices` that wraps the `ExtractedSlice` buffer.
This is a separate resource so it can be used without sprites (with a
text material, for example).
* New enum `ExtractedSpriteKind` with variants `Single` and `Slices`.
`Single` represents a single sprite, `Slices` contains a range into the
`ExtractedSlice` buffer.
* Only queue a single `ExtractedSprite` for sets of glyphs or slices and
push the geometry for each individual slice or glyph into the
`ExtractedSlice` buffer.
* Modify `ComputedTextureSlices` to return an `ExtractedSlice` iterator
instead of `ExtractedSprites`.
* Modify `extract_text2d_sprite` to only queue new `ExtractedSprite`s on
font changes and otherwise push slices.
I don't like the name `ExtractedSpriteKind` much, it's a bit redundant
and too haskellish. But although it's exported, it's not something users
will interact with most of the time so don't want to overthink it.
yellow = this pr, red = main
```cargo run --example many_glyphs --release --features "trace_tracy" -- --no-ui```
<img width="454" alt="many-glyphs" src="https://github.com/user-attachments/assets/711b52c9-2d4d-43c7-b154-e81a69c94dce" />
```cargo run --example many_text2d --release --features "trace_tracy"```
<img width="415" alt="many-text2d"
src="https://github.com/user-attachments/assets/5ea2480a-52e0-4cd0-9f12-07405cf6b8fa"
/>
* `ExtractedSprite` has a new `kind: ExtractedSpriteKind` field with
variants `Single` and `Slices`.
- `Single` represents a single sprite. `ExtractedSprite`'s `anchor`,
`rect`, `scaling_mode` and `custom_size` fields have been moved into
`Single`.
- `Slices` contains a range that indexes into a new resource
`ExtractedSlices`. Slices are used to draw elements composed from
multiple sprites such as text or nine-patched borders.
* `ComputedTextureSlices::extract_sprites` has been renamed to
`extract_slices`. Its `transform` and `original_entity` parameters have
been removed.
---------
Co-authored-by: Kristoffer Søholm <k.soeholm@gmail.com>
# Objective
Extract sprites into a `Vec` instead of a `HashMap`.
## Solution
Extract UI nodes into a `Vec` instead of an `EntityHashMap`.
Add an index into the `Vec` to `Transparent2d`.
Compare both the index and render entity in prepare so there aren't any
collisions.
## Showcase
yellow this PR, red main
```
cargo run --example many_sprites --release --features "trace_tracy"
```
`extract_sprites`
<img width="452" alt="extract_sprites"
src="https://github.com/user-attachments/assets/66c60406-7c2b-4367-907d-4a71d3630296"
/>
`queue_sprites`
<img width="463" alt="queue_sprites"
src="https://github.com/user-attachments/assets/54b903bd-4137-4772-9f87-e10e1e050d69"
/>
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
Now that #13432 has been merged, it's important we update our reflected
types to properly opt into this feature. If we do not, then this could
cause issues for users downstream who want to make use of
reflection-based cloning.
## Solution
This PR is broken into 4 commits:
1. Add `#[reflect(Clone)]` on all types marked `#[reflect(opaque)]` that
are also `Clone`. This is mandatory as these types would otherwise cause
the cloning operation to fail for any type that contains it at any
depth.
2. Update the reflection example to suggest adding `#[reflect(Clone)]`
on opaque types.
3. Add `#[reflect(clone)]` attributes on all fields marked
`#[reflect(ignore)]` that are also `Clone`. This prevents the ignored
field from causing the cloning operation to fail.
Note that some of the types that contain these fields are also `Clone`,
and thus can be marked `#[reflect(Clone)]`. This makes the
`#[reflect(clone)]` attribute redundant. However, I think it's safer to
keep it marked in the case that the `Clone` impl/derive is ever removed.
I'm open to removing them, though, if people disagree.
4. Finally, I added `#[reflect(Clone)]` on all types that are also
`Clone`. While not strictly necessary, it enables us to reduce the
generated output since we can just call `Clone::clone` directly instead
of calling `PartialReflect::reflect_clone` on each variant/field. It
also means we benefit from any optimizations or customizations made in
the `Clone` impl, including directly dereferencing `Copy` values and
increasing reference counters.
Along with that change I also took the liberty of adding any missing
registrations that I saw could be applied to the type as well, such as
`Default`, `PartialEq`, and `Hash`. There were hundreds of these to
edit, though, so it's possible I missed quite a few.
That last commit is **_massive_**. There were nearly 700 types to
update. So it's recommended to review the first three before moving onto
that last one.
Additionally, I can break the last commit off into its own PR or into
smaller PRs, but I figured this would be the easiest way of doing it
(and in a timely manner since I unfortunately don't have as much time as
I used to for code contributions).
## Testing
You can test locally with a `cargo check`:
```
cargo check --workspace --all-features
```
# Objective
- Fixes#17960
## Solution
- Followed the [edition upgrade
guide](https://doc.rust-lang.org/edition-guide/editions/transitioning-an-existing-project-to-a-new-edition.html)
## Testing
- CI
---
## Summary of Changes
### Documentation Indentation
When using lists in documentation, proper indentation is now linted for.
This means subsequent lines within the same list item must start at the
same indentation level as the item.
```rust
/* Valid */
/// - Item 1
/// Run-on sentence.
/// - Item 2
struct Foo;
/* Invalid */
/// - Item 1
/// Run-on sentence.
/// - Item 2
struct Foo;
```
### Implicit `!` to `()` Conversion
`!` (the never return type, returned by `panic!`, etc.) no longer
implicitly converts to `()`. This is particularly painful for systems
with `todo!` or `panic!` statements, as they will no longer be functions
returning `()` (or `Result<()>`), making them invalid systems for
functions like `add_systems`. The ideal fix would be to accept functions
returning `!` (or rather, _not_ returning), but this is blocked on the
[stabilisation of the `!` type
itself](https://doc.rust-lang.org/std/primitive.never.html), which is
not done.
The "simple" fix would be to add an explicit `-> ()` to system
signatures (e.g., `|| { todo!() }` becomes `|| -> () { todo!() }`).
However, this is _also_ banned, as there is an existing lint which (IMO,
incorrectly) marks this as an unnecessary annotation.
So, the "fix" (read: workaround) is to put these kinds of `|| -> ! { ...
}` closuers into variables and give the variable an explicit type (e.g.,
`fn()`).
```rust
// Valid
let system: fn() = || todo!("Not implemented yet!");
app.add_systems(..., system);
// Invalid
app.add_systems(..., || todo!("Not implemented yet!"));
```
### Temporary Variable Lifetimes
The order in which temporary variables are dropped has changed. The
simple fix here is _usually_ to just assign temporaries to a named
variable before use.
### `gen` is a keyword
We can no longer use the name `gen` as it is reserved for a future
generator syntax. This involved replacing uses of the name `gen` with
`r#gen` (the raw-identifier syntax).
### Formatting has changed
Use statements have had the order of imports changed, causing a
substantial +/-3,000 diff when applied. For now, I have opted-out of
this change by amending `rustfmt.toml`
```toml
style_edition = "2021"
```
This preserves the original formatting for now, reducing the size of
this PR. It would be a simple followup to update this to 2024 and run
`cargo fmt`.
### New `use<>` Opt-Out Syntax
Lifetimes are now implicitly included in RPIT types. There was a handful
of instances where it needed to be added to satisfy the borrow checker,
but there may be more cases where it _should_ be added to avoid
breakages in user code.
### `MyUnitStruct { .. }` is an invalid pattern
Previously, you could match against unit structs (and unit enum
variants) with a `{ .. }` destructuring. This is no longer valid.
### Pretty much every use of `ref` and `mut` are gone
Pattern binding has changed to the point where these terms are largely
unused now. They still serve a purpose, but it is far more niche now.
### `iter::repeat(...).take(...)` is bad
New lint recommends using the more explicit `iter::repeat_n(..., ...)`
instead.
## Migration Guide
The lifetimes of functions using return-position impl-trait (RPIT) are
likely _more_ conservative than they had been previously. If you
encounter lifetime issues with such a function, please create an issue
to investigate the addition of `+ use<...>`.
## Notes
- Check the individual commits for a clearer breakdown for what
_actually_ changed.
---------
Co-authored-by: François Mockers <francois.mockers@vleue.com>
# Objective
Bevy sprite image mode lacks proportional scaling for the underlying
texture. In many cases, it's required. For example, if it is desired to
support a wide variety of screens with a single texture, it's okay to
cut off some portion of the original texture.
## Solution
I added scaling of the texture during the preparation step. To fill the
sprite with the original texture, I scaled UV coordinates accordingly to
the sprite size aspect ratio and texture size aspect ratio. To fit
texture in a sprite the original `quad` is scaled and then the
additional translation is applied to place the scaled quad properly.
## Testing
For testing purposes could be used `2d/sprite_scale.rs`. Also, I am
thinking that it would be nice to have some tests for a
`crates/bevy_sprite/src/render/mod.rs:sprite_scale`.
---
## Showcase
<img width="1392" alt="image"
src="https://github.com/user-attachments/assets/c2c37b96-2493-4717-825f-7810d921b4bc"
/>
# Objective
- Contributes to #16877
## Solution
- Moved `hashbrown`, `foldhash`, and related types out of `bevy_utils`
and into `bevy_platform_support`
- Refactored the above to match the layout of these types in `std`.
- Updated crates as required.
## Testing
- CI
---
## Migration Guide
- The following items were moved out of `bevy_utils` and into
`bevy_platform_support::hash`:
- `FixedState`
- `DefaultHasher`
- `RandomState`
- `FixedHasher`
- `Hashed`
- `PassHash`
- `PassHasher`
- `NoOpHash`
- The following items were moved out of `bevy_utils` and into
`bevy_platform_support::collections`:
- `HashMap`
- `HashSet`
- `bevy_utils::hashbrown` has been removed. Instead, import from
`bevy_platform_support::collections` _or_ take a dependency on
`hashbrown` directly.
- `bevy_utils::Entry` has been removed. Instead, import from
`bevy_platform_support::collections::hash_map` or
`bevy_platform_support::collections::hash_set` as appropriate.
- All of the above equally apply to `bevy::utils` and
`bevy::platform_support`.
## Notes
- I left `PreHashMap`, `PreHashMapExt`, and `TypeIdMap` in `bevy_utils`
as they might be candidates for micro-crating. They can always be moved
into `bevy_platform_support` at a later date if desired.
# Objective
Stumbled upon a `from <-> form` transposition while reviewing a PR,
thought it was interesting, and went down a bit of a rabbit hole.
## Solution
Fix em
# Objective
- Contributes to #11478
## Solution
- Made `bevy_utils::tracing` `doc(hidden)`
- Re-exported `tracing` from `bevy_log` for end-users
- Added `tracing` directly to crates that need it.
## Testing
- CI
---
## Migration Guide
If you were importing `tracing` via `bevy::utils::tracing`, instead use
`bevy::log::tracing`. Note that many items within `tracing` are also
directly re-exported from `bevy::log` as well, so you may only need
`bevy::log` for the most common items (e.g., `warn!`, `trace!`, etc.).
This also applies to the `log_once!` family of macros.
## Notes
- While this doesn't reduce the line-count in `bevy_utils`, it further
decouples the internal crates from `bevy_utils`, making its eventual
removal more feasible in the future.
- I have just imported `tracing` as we do for all dependencies. However,
a workspace dependency may be more appropriate for version management.
# Objective
Fixes#17098
It seems that it's not totally obvious how to fix this, but that
reverting might be part of the solution anyway.
Let's get the repo back into a working state.
## Solution
Revert the [recent
optimization](https://github.com/bevyengine/bevy/pull/17078) that broke
"many-to-one main->render world entities" for 2d.
## Testing
`cargo run --example text2d`
`cargo run --example sprite_slice`
# Objective
- Fix sprite rendering performance regression since retained render
world changes
- The retained render world changes moved `ExtractedSprites` from using
the highly-optimised `EntityHasher` with an `Entity` to using
`FixedHasher` with `(Entity, MainEntity)`. This was enough to regress
framerate in bevymark by 25%.
## Solution
- Move the render world entity into a member of `ExtractedSprite` and
change `ExtractedSprites` to use `MainEntityHashMap` for its storage
- Disable sprite picking in bevymark
## Testing
M4 Max. `bevymark --waves 100 --per-wave 1000 --benchmark`. main in
yellow vs PR in red:
<img width="590" alt="Screenshot 2025-01-01 at 16 36 22"
src="https://github.com/user-attachments/assets/1e4ed6ec-3811-4abf-8b30-336153737f89"
/>
20.2% median frame time reduction.
<img width="594" alt="Screenshot 2025-01-01 at 16 38 37"
src="https://github.com/user-attachments/assets/157c2022-cda6-4cf2-bc63-d0bc40528cf0"
/>
49.7% median extract_sprites execution time reduction.
Comparing 0.14.2 yellow vs PR red:
<img width="593" alt="Screenshot 2025-01-01 at 16 40 06"
src="https://github.com/user-attachments/assets/abd59b6f-290a-4eb6-8835-ed110af995f3"
/>
~6.1% median frame time reduction.
---
## Migration Guide
- `ExtractedSprites` is now using `MainEntityHashMap` for storage, which
is keyed on `MainEntity`.
- The render world entity corresponding to an `ExtractedSprite` is now
stored in the `render_entity` member of it.
# Objective
The doc comments and function namings for `BorderRect` feel imprecise to
me. Particularly the `square` function which is used to define a uniform
`BorderRect` with equal widths on each edge. But this is potentially
confusing since this "square" border could be around an oblong shape.
Using "padding" to refer to the border extents seems undesirable too
since "padding" is typically used to refer to the area between border
and content, not the border itself.
## Solution
* Rename `square` to `all` (this matches the name of the similar method
on `UiRect`).
* Rename `rectangle` to `axes` (this matches the name of the similar
method on `UiRect`).
* Update doc comments.
## Migration Guide
The `square` and `rectangle` functions belonging to `BorderRect` have
been renamed to `all` and `axes`.
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
Fixes#15940
## Solution
Remove the `pub use` and fix the compile errors.
Make `bevy_image` available as `bevy::image`.
## Testing
Feature Frenzy would be good here! Maybe I'll learn how to use it if I
have some time this weekend, or maybe a reviewer can use it.
## Migration Guide
Use `bevy_image` instead of `bevy_render::texture` items.
---------
Co-authored-by: chompaa <antony.m.3012@gmail.com>
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
# Objective
1. UI texture slicing chops and scales an image to fit the size of a
node and isn't meant to place any constraints on the size of the node
itself, but because the required components changes required `ImageSize`
and `ContentSize` for nodes with `UiImage`, texture sliced nodes are
laid out using an `ImageMeasure`.
2. In 0.14 users could spawn a `(UiImage, NodeBundle)` which would
display an image stretched to fill the UI node's bounds ignoring the
image's instrinsic size. Now that `UiImage` requires `ContentSize`,
there's no option to display an image without its size placing
constrains on the UI layout (unless you force the `Node` to a fixed
size, but that's not a solution).
3. It's desirable that the `Sprite` and `UiImage` share similar APIs.
Fixes#16109
## Solution
* Remove the `Component` impl from `ImageScaleMode`.
* Add a `Stretch` variant to `ImageScaleMode`.
* Add a field `scale_mode: ImageScaleMode` to `Sprite`.
* Add a field `mode: UiImageMode` to `UiImage`.
* Add an enum `UiImageMode` similar to `ImageScaleMode` but with
additional UI specific variants.
* Remove the queries for `ImageScaleMode` from Sprite and UI extraction,
and refer to the new fields instead.
* Change `ui_layout_system` to update measure funcs on any change to
`ContentSize`s to enable manual clearing without removing the component.
* Don't add a measure unless `UiImageMode::Auto` is set in
`update_image_content_size_system`. Mutably deref the `Mut<ContentSize>`
if the `UiImage` is changed to force removal of any existing measure
func.
## Testing
Remove all the constraints from the ui_texture_slice example:
```rust
//! This example illustrates how to create buttons with their textures sliced
//! and kept in proportion instead of being stretched by the button dimensions
use bevy::{
color::palettes::css::{GOLD, ORANGE},
prelude::*,
winit::WinitSettings,
};
fn main() {
App::new()
.add_plugins(DefaultPlugins)
// Only run the app when there is user input. This will significantly reduce CPU/GPU use.
.insert_resource(WinitSettings::desktop_app())
.add_systems(Startup, setup)
.add_systems(Update, button_system)
.run();
}
fn button_system(
mut interaction_query: Query<
(&Interaction, &Children, &mut UiImage),
(Changed<Interaction>, With<Button>),
>,
mut text_query: Query<&mut Text>,
) {
for (interaction, children, mut image) in &mut interaction_query {
let mut text = text_query.get_mut(children[0]).unwrap();
match *interaction {
Interaction::Pressed => {
**text = "Press".to_string();
image.color = GOLD.into();
}
Interaction::Hovered => {
**text = "Hover".to_string();
image.color = ORANGE.into();
}
Interaction::None => {
**text = "Button".to_string();
image.color = Color::WHITE;
}
}
}
}
fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
let image = asset_server.load("textures/fantasy_ui_borders/panel-border-010.png");
let slicer = TextureSlicer {
border: BorderRect::square(22.0),
center_scale_mode: SliceScaleMode::Stretch,
sides_scale_mode: SliceScaleMode::Stretch,
max_corner_scale: 1.0,
};
// ui camera
commands.spawn(Camera2d);
commands
.spawn(Node {
width: Val::Percent(100.0),
height: Val::Percent(100.0),
align_items: AlignItems::Center,
justify_content: JustifyContent::Center,
..default()
})
.with_children(|parent| {
for [w, h] in [[150.0, 150.0], [300.0, 150.0], [150.0, 300.0]] {
parent
.spawn((
Button,
Node {
// width: Val::Px(w),
// height: Val::Px(h),
// horizontally center child text
justify_content: JustifyContent::Center,
// vertically center child text
align_items: AlignItems::Center,
margin: UiRect::all(Val::Px(20.0)),
..default()
},
UiImage::new(image.clone()),
ImageScaleMode::Sliced(slicer.clone()),
))
.with_children(|parent| {
// parent.spawn((
// Text::new("Button"),
// TextFont {
// font: asset_server.load("fonts/FiraSans-Bold.ttf"),
// font_size: 33.0,
// ..default()
// },
// TextColor(Color::srgb(0.9, 0.9, 0.9)),
// ));
});
}
});
}
```
This should result in a blank window, since without any constraints the
texture slice image nodes should be zero-sized. But in main the image
nodes are given the size of the underlying unsliced source image
`textures/fantasy_ui_borders/panel-border-010.png`:
<img width="321" alt="slicing"
src="https://github.com/user-attachments/assets/cbd74c9c-14cd-4b4d-93c6-7c0152bb05ee">
For this PR need to change the lines:
```
UiImage::new(image.clone()),
ImageScaleMode::Sliced(slicer.clone()),
```
to
```
UiImage::new(image.clone()).with_mode(UiImageMode::Sliced(slicer.clone()),
```
and then nothing should be rendered, as desired.
---------
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
# Objective
Continue migration of bevy APIs to required components, following
guidance of https://hackmd.io/@bevy/required_components/
## Solution
- Make `Sprite` require `Transform` and `Visibility` and
`SyncToRenderWorld`
- move image and texture atlas handles into `Sprite`
- deprecate `SpriteBundle`
- remove engine uses of `SpriteBundle`
## Testing
ran cargo tests on bevy_sprite and tested several sprite examples.
---
## Migration Guide
Replace all uses of `SpriteBundle` with `Sprite`. There are several new
convenience constructors: `Sprite::from_image`,
`Sprite::from_atlas_image`, `Sprite::from_color`.
WARNING: use of `Handle<Image>` and `TextureAtlas` as components on
sprite entities will NO LONGER WORK. Use the fields on `Sprite` instead.
I would have removed the `Component` impls from `TextureAtlas` and
`Handle<Image>` except it is still used within ui. We should fix this
moving forward with the migration.
# Objective
Fixes#15142
## Solution
* Moved all the UI border geometry calculations that were scattered
through the UI extraction functions into `ui_layout_system`.
* Added a `border: BorderRect` field to `Node` to store the border size
computed by `ui_layout_system`.
* Use the border values returned from Taffy rather than calculate them
ourselves during extraction.
* Removed the `logical_rect` and `physical_rect` methods from `Node` the
descriptions and namings are deceptive, it's better to create the rects
manually instead.
* Added a method `outline_radius` to `Node` that calculates the border
radius of outlines.
* For border values `ExtractedUiNode` takes `BorderRect` and
`ResolvedBorderRadius` now instead of raw `[f32; 4]` values and converts
them in `prepare_uinodes`.
* Removed some unnecessary scaling and clamping of border values
(#15142).
* Added a `BorderRect::ZERO` constant.
* Added an `outlined_node_size` method to `Node`.
## Testing
Added some non-uniform borders to the border example. Everything seems
to be in order:
<img width="626" alt="nub"
src="https://github.com/user-attachments/assets/258ed8b5-1a9e-4ac5-99c2-6bf25c0ef31c">
## Migration Guide
The `logical_rect` and `physical_rect` methods have been removed from
`Node`. Use `Rect::from_center_size` with the translation and node size
instead.
The types of the fields border and border_radius of `ExtractedUiNode`
have been changed to `BorderRect` and `ResolvedBorderRadius`
respectively.
---------
Co-authored-by: UkoeHB <37489173+UkoeHB@users.noreply.github.com>
Co-authored-by: akimakinai <105044389+akimakinai@users.noreply.github.com>
# Objective
Fix a 9-slice asymmetric border issue that
[QueenOfSquiggles](https://blobfox.coffee/@queenofsquiggles/112639035165575222)
found. Here's the behavior before:
<img width="340" alt="the-bug"
src="https://github.com/bevyengine/bevy/assets/54390/81ff1847-b2ea-4578-9fd0-af6ee96c5438">
## Solution
Here's the behavior with the fix.
<img width="327" alt="the-fix"
src="https://github.com/bevyengine/bevy/assets/54390/33a4e3f0-b6a8-448e-9654-1197218ea11d">
## Testing
I used QueenOfSquiggles
[repo](https://github.com/QueenOfSquiggles/my-bevy-learning-project) to
exercise the code. I manually went through a number of variations of the
border and caught a few other issues after the first pass. I added some
code to create random borders and though they often looked funny there
weren't any gaps like before.
### Unit Tests
I did add some tests to `slicer.rs` mostly as an exploratory programming
exercise. So they currently act as a limited, incomplete,
"golden-file"-ish approach. Perhaps they're not worth keeping.
In order to write the tests, I did add a `PartialEq` derive for
`TextureSlice`.
I only tested these changes on macOS.
---
## Changelog
Make 9-slice textures work with asymmetric borders.
# Objective
Fixes#12408 .
Fixes#12680.
## Solution
- Recaclulated anchor from dimensions of sprite to dimension of each
part of it (each part contains its own anchor)
# Objective
Follow up to #11600 and #10588https://github.com/bevyengine/bevy/issues/11944 made clear that some
people want to use slicing with texture atlases
## Changelog
* Added support for `TextureAtlas` slicing and tiling.
`SpriteSheetBundle` and `AtlasImageBundle` can now use `ImageScaleMode`
* Added new `ui_texture_atlas_slice` example using a texture sheet
<img width="798" alt="Screenshot 2024-02-23 at 11 58 35"
src="https://github.com/bevyengine/bevy/assets/26703856/47a8b764-127c-4a06-893f-181703777501">
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Pablo Reinhardt <126117294+pablo-lua@users.noreply.github.com>
# Objective
Fixes#11298. Make the use of bevy_log vs bevy_utils::tracing more
consistent.
## Solution
Replace all uses of bevy_log's logging macros with the reexport from
bevy_utils. Remove bevy_log as a dependency where it's no longer needed
anymore.
Ideally we should just be using tracing directly, but given that all of
these crates are already using bevy_utils, this likely isn't that great
of a loss right now.
# Objective
- As part of the migration process we need to a) see the end effect of
the migration on user ergonomics b) check for serious perf regressions
c) actually migrate the code
- To accomplish this, I'm going to attempt to migrate all of the
remaining user-facing usages of `LegacyColor` in one PR, being careful
to keep a clean commit history.
- Fixes#12056.
## Solution
I've chosen to use the polymorphic `Color` type as our standard
user-facing API.
- [x] Migrate `bevy_gizmos`.
- [x] Take `impl Into<Color>` in all `bevy_gizmos` APIs
- [x] Migrate sprites
- [x] Migrate UI
- [x] Migrate `ColorMaterial`
- [x] Migrate `MaterialMesh2D`
- [x] Migrate fog
- [x] Migrate lights
- [x] Migrate StandardMaterial
- [x] Migrate wireframes
- [x] Migrate clear color
- [x] Migrate text
- [x] Migrate gltf loader
- [x] Register color types for reflection
- [x] Remove `LegacyColor`
- [x] Make sure CI passes
Incidental improvements to ease migration:
- added `Color::srgba_u8`, `Color::srgba_from_array` and friends
- added `set_alpha`, `is_fully_transparent` and `is_fully_opaque` to the
`Alpha` trait
- add and immediately deprecate (lol) `Color::rgb` and friends in favor
of more explicit and consistent `Color::srgb`
- standardized on white and black for most example text colors
- added vector field traits to `LinearRgba`: ~~`Add`, `Sub`,
`AddAssign`, `SubAssign`,~~ `Mul<f32>` and `Div<f32>`. Multiplications
and divisions do not scale alpha. `Add` and `Sub` have been cut from
this PR.
- added `LinearRgba` and `Srgba` `RED/GREEN/BLUE`
- added `LinearRgba_to_f32_array` and `LinearRgba::to_u32`
## Migration Guide
Bevy's color types have changed! Wherever you used a
`bevy::render::Color`, a `bevy::color::Color` is used instead.
These are quite similar! Both are enums storing a color in a specific
color space (or to be more precise, using a specific color model).
However, each of the different color models now has its own type.
TODO...
- `Color::rgba`, `Color::rgb`, `Color::rbga_u8`, `Color::rgb_u8`,
`Color::rgb_from_array` are now `Color::srgba`, `Color::srgb`,
`Color::srgba_u8`, `Color::srgb_u8` and `Color::srgb_from_array`.
- `Color::set_a` and `Color::a` is now `Color::set_alpha` and
`Color::alpha`. These are part of the `Alpha` trait in `bevy_color`.
- `Color::is_fully_transparent` is now part of the `Alpha` trait in
`bevy_color`
- `Color::r`, `Color::set_r`, `Color::with_r` and the equivalents for
`g`, `b` `h`, `s` and `l` have been removed due to causing silent
relatively expensive conversions. Convert your `Color` into the desired
color space, perform your operations there, and then convert it back
into a polymorphic `Color` enum.
- `Color::hex` is now `Srgba::hex`. Call `.into` or construct a
`Color::Srgba` variant manually to convert it.
- `WireframeMaterial`, `ExtractedUiNode`, `ExtractedDirectionalLight`,
`ExtractedPointLight`, `ExtractedSpotLight` and `ExtractedSprite` now
store a `LinearRgba`, rather than a polymorphic `Color`
- `Color::rgb_linear` and `Color::rgba_linear` are now
`Color::linear_rgb` and `Color::linear_rgba`
- The various CSS color constants are no longer stored directly on
`Color`. Instead, they're defined in the `Srgba` color space, and
accessed via `bevy::color::palettes::css`. Call `.into()` on them to
convert them into a `Color` for quick debugging use, and consider using
the much prettier `tailwind` palette for prototyping.
- The `LIME_GREEN` color has been renamed to `LIMEGREEN` to comply with
the standard naming.
- Vector field arithmetic operations on `Color` (add, subtract, multiply
and divide by a f32) have been removed. Instead, convert your colors
into `LinearRgba` space, and perform your operations explicitly there.
This is particularly relevant when working with emissive or HDR colors,
whose color channel values are routinely outside of the ordinary 0 to 1
range.
- `Color::as_linear_rgba_f32` has been removed. Call
`LinearRgba::to_f32_array` instead, converting if needed.
- `Color::as_linear_rgba_u32` has been removed. Call
`LinearRgba::to_u32` instead, converting if needed.
- Several other color conversion methods to transform LCH or HSL colors
into float arrays or `Vec` types have been removed. Please reimplement
these externally or open a PR to re-add them if you found them
particularly useful.
- Various methods on `Color` such as `rgb` or `hsl` to convert the color
into a specific color space have been removed. Convert into
`LinearRgba`, then to the color space of your choice.
- Various implicitly-converting color value methods on `Color` such as
`r`, `g`, `b` or `h` have been removed. Please convert it into the color
space of your choice, then check these properties.
- `Color` no longer implements `AsBindGroup`. Store a `LinearRgba`
internally instead to avoid conversion costs.
---------
Co-authored-by: Alice Cecile <alice.i.cecil@gmail.com>
Co-authored-by: Afonso Lage <lage.afonso@gmail.com>
Co-authored-by: Rob Parrett <robparrett@gmail.com>
Co-authored-by: Zachary Harrold <zac@harrold.com.au>
> Follow up to #11600 and #10588
@mockersf expressed some [valid
concerns](https://github.com/bevyengine/bevy/pull/11600#issuecomment-1932796498)
about the current system this PR attempts to fix:
The `ComputedTextureSlices` reacts to asset change in both `bevy_sprite`
and `bevy_ui`, meaning that if the `ImageScaleMode` is inserted by
default in the bundles, we will iterate through most 2d items every time
an asset is updated.
# Solution
- `ImageScaleMode` only has two variants: `Sliced` and `Tiled`. I
removed the `Stretched` default
- `ImageScaleMode` is no longer part of any bundle, but the relevant
bundles explain that this additional component can be inserted
This way, the *absence* of `ImageScaleMode` means the image will be
stretched, and its *presence* will include the entity to the various
slicing systems
Optional components in bundles would make this more straigthfoward
# Additional work
Should I add new bundles with the `ImageScaleMode` component ?
> Follow up to #10588
> Closes#11749 (Supersedes #11756)
Enable Texture slicing for the following UI nodes:
- `ImageBundle`
- `ButtonBundle`
<img width="739" alt="Screenshot 2024-01-29 at 13 57 43"
src="https://github.com/bevyengine/bevy/assets/26703856/37675681-74eb-4689-ab42-024310cf3134">
I also added a collection of `fantazy-ui-borders` from
[Kenney's](www.kenney.nl) assets, with the appropriate license (CC).
If it's a problem I can use the same textures as the `sprite_slice`
example
# Work done
Added the `ImageScaleMode` component to the targetted bundles, most of
the logic is directly reused from `bevy_sprite`.
The only additional internal component is the UI specific
`ComputedSlices`, which does the same thing as its spritee equivalent
but adapted to UI code.
Again the slicing is not compatible with `TextureAtlas`, it's something
I need to tackle more deeply in the future
# Fixes
* [x] I noticed that `TextureSlicer::compute_slices` could infinitely
loop if the border was larger that the image half extents, now an error
is triggered and the texture will fallback to being stretched
* [x] I noticed that when using small textures with very small *tiling*
options we could generate hundred of thousands of slices. Now I set a
minimum size of 1 pixel per slice, which is already ridiculously small,
and a warning will be sent at runtime when slice count goes above 1000
* [x] Sprite slicing with `flip_x` or `flip_y` would give incorrect
results, correct flipping is now supported to both sprites and ui image
nodes thanks to @odecay observation
# GPU Alternative
I create a separate branch attempting to implementing 9 slicing and
tiling directly through the `ui.wgsl` fragment shader. It works but
requires sending more data to the GPU:
- slice border
- tiling factors
And more importantly, the actual quad *scale* which is hard to put in
the shader with the current code, so that would be for a later iteration
> Replaces #5213
# Objective
Implement sprite tiling and [9 slice
scaling](https://en.wikipedia.org/wiki/9-slice_scaling) for
`bevy_sprite`.
Allowing slice scaling and texture tiling.
Basic scaling vs 9 slice scaling:
Slicing example:
<img width="481" alt="Screenshot 2022-07-05 at 15 05 49"
src="https://user-images.githubusercontent.com/26703856/177336112-9e961af0-c0af-4197-aec9-430c1170a79d.png">
Tiling example:
<img width="1329" alt="Screenshot 2023-11-16 at 13 53 32"
src="https://github.com/bevyengine/bevy/assets/26703856/14db39b7-d9e0-4bc3-ba0e-b1f2db39ae8f">
# Solution
- `SpriteBundlue` now has a `scale_mode` component storing a
`SpriteScaleMode` enum with three variants:
- `Stretched` (default)
- `Tiled` to have sprites tile horizontally and/or vertically
- `Sliced` allowing 9 slicing the texture and optionally tile some
sections with a `Textureslicer`.
- `bevy_sprite` has two extra systems to compute a
`ComputedTextureSlices` if necessary,:
- One system react to changes on `Sprite`, `Handle<Image>` or
`SpriteScaleMode`
- The other listens to `AssetEvent<Image>` to compute slices on sprites
when the texture is ready or changed
- I updated the `bevy_sprite` extraction stage to extract potentially
multiple textures instead of one, depending on the presence of
`ComputedTextureSlices`
- I added two examples showcasing the slicing and tiling feature.
The addition of `ComputedTextureSlices` as a cache is to avoid querying
the image data, to retrieve its dimensions, every frame in a extract or
prepare stage. Also it reacts to changes so we can have stuff like this
(tiling example):
https://github.com/bevyengine/bevy/assets/26703856/a349a9f3-33c3-471f-8ef4-a0e5dfce3b01
# Related
- [ ] Once #5103 or #10099 is merged I can enable tiling and slicing for
texture sheets as ui
# To discuss
There is an other option, to consider slice/tiling as part of the asset,
using the new asset preprocessing but I have no clue on how to do it.
Also, instead of retrieving the Image dimensions, we could use the same
system as the sprite sheet and have the user give the image dimensions
directly (grid). But I think it's less user friendly
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: ickshonpe <david.curthoys@googlemail.com>
Co-authored-by: Alice Cecile <alice.i.cecil@gmail.com>
