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`.
# Objective
- #17581 broke gizmos
- Fixes#18325
## Solution
- Revert #17581
- Add gizmos to testbed
## Testing
- Run any example with gizmos, it renders correctly
# Objective
`Text2d` testing hasn't been as thorough as text in the UI, and it
suffered a bunch of bugs / perf issues in recent cycles.
## Solution
Add some more `Text2d` scenarios to the 2d testbed to catch bugs,
testing bounded and unbounded text with various justification.
## Testing
`cargo run --example testbed_2d` (press space a few times)
<img width="1280" alt="Screenshot 2025-03-10 at 1 02 03 PM"
src="https://github.com/user-attachments/assets/1e4ee39c-809b-4cc6-81bd-68e67b9625b5"
/>
---------
Co-authored-by: Ben Frankel <ben.frankel7@gmail.com>
# Objective
- have a testbed for UI
## Solution
- move previous `ui` example to `full_ui`
- add a testbed ui with several scenes
- `ui_layout_rounding` is one of those scenes, so remove it as a
standalone example
the previous `ui` / new `full_ui` is I think still useful as it has some
things like scroll, debug ui that are not shown anywhere else
# Objective
Fix gltf validation errors in `Fox.glb`.
Inspired by #8099, but that issue doesn't appear to describe a real bug
to fix, as far as I can tell.
## Solution
Use the latest version of the Fox from
[glTF-Sample-Assets](https://github.com/KhronosGroup/glTF-Sample-Assets/blob/main/Models/Fox/glTF-Binary/Fox.glb).
## Testing
Dropped both versions in https://github.khronos.org/glTF-Validator/
`cargo run --example animated_mesh` seems to still look fine.
Before:
```
The asset contains errors.
"numErrors": 126,
"numWarnings": 4184,
```
After:
```
The asset is valid.
"numErrors": 0,
"numWarnings": 0,
```
## Discussion
The 3d testbed was panicking with
```
thread 'main' panicked at examples/testbed/3d.rs:288:60:
called `Result::unwrap()` on an `Err` value: QueryDoesNotMatch(35v1 with components Transform, GlobalTransform, Visibility, InheritedVisibility, ViewVisibility, ChildOf, Children, Name)
```
Which is bizarre. I think this might be related to #17720, or maybe the
structure of the gltf changed.
I fixed it by using updating the testbed to use a more robust method of
finding the correct entity as is done in `animated_mesh`.
# Objective
- Improve CI when testing rendering by having smarter testbeds
## Solution
- CI testing no longer need a config file and will run with a default
config if not found
- It is now possible to give a name to a screenshot instead of just a
frame number
- 2d and 3d testbeds are now driven from code
- a new system in testbed will watch for state changed
- on state changed, trigger a screenshot 100 frames after (so that the
scene has time to render) with the name of the scene
- when the screenshot is taken (`Captured` component has been removed),
switch scene
- this means less setup to run a testbed (no need for a config file),
screenshots have better names, and it's faster as we don't wait 100
frames for the screenshot to be taken
## Testing
- `cargo run --example testbed_2d --features bevy_ci_testing`
Fixes#17412
## Objective
`Parent` uses the "has a X" naming convention. There is increasing
sentiment that we should use the "is a X" naming convention for
relationships (following #17398). This leaves `Children` as-is because
there is prevailing sentiment that `Children` is clearer than `ParentOf`
in many cases (especially when treating it like a collection).
This renames `Parent` to `ChildOf`.
This is just the implementation PR. To discuss the path forward, do so
in #17412.
## Migration Guide
- The `Parent` component has been renamed to `ChildOf`.
# Objective
PR #17225 allowed for sprite picking to be opt-in. After some
discussion, it was agreed that `PickingBehavior` should be used to
opt-in to sprite picking behavior for entities. This leads to
`PickingBehavior` having two purposes: mark an entity for use in a
backend, and describe how it should be picked. Discussion led to the
name `Pickable`making more sense (also: this is what the component was
named before upstreaming).
A follow-up pass will be made after this PR to unify backends.
## Solution
Replace all instances of `PickingBehavior` and `picking_behavior` with
`Pickable` and `pickable`, respectively.
## Testing
CI
## Migration Guide
Change all instances of `PickingBehavior` to `Pickable`.
# Objective
The UI debug overlay draws an outline for every UI node even if it is
invisible or clipped.
Disable debug outlines for hidden and clipped nodes by default and add
options to renable them if needed.
## Solution
* Add `show_hidden` and `show_clipped` fields to `UiDebugOptions`:
```rust
/// Show outlines for non-visible UI nodes
pub show_hidden: bool,
/// Show outlines for clipped sections of UI nodes
pub show_clipped: bool,
```
* Only extract debug outlines for hidden and clipped UI nodes if the
respective field in `UiDebugOptions` is set to `true`.
## Testing
Also added some extra features to the `testbed_ui` example that
demonstrate the new options:
cargo run --example testbed_ui --features "bevy_ui_debug"
<img width="641" alt="show-hidden-and-clipped"
src="https://github.com/user-attachments/assets/16a68600-170c-469e-a3c7-f7dae411dc40"
/>
# Objective
With the introduction of bevy_input_focus, the uses of "focus" in
bevy_picking are quite confusing and make searching hard.
Users will intuitively think these concepts are related, but they
actually aren't.
## Solution
Rename / rephrase all uses of "focus" in bevy_picking to refer to
"hover", since this is ultimately related to creating the `HoverMap`.
## Migration Guide
Various terms related to "focus" in `bevy_picking` have been renamed to
refer to "hover" to avoid confusion with `bevy_input_focus`. In
particular:
- The `update_focus` system has been renamed to `generate_hovermap`
- `PickSet::Focus` and `PostFocus` have been renamed to `Hover` and
`PostHover`
- The `bevy_picking::focus` module has been renamed to
`bevy_picking::hover`
- The `is_focus_enabled` field on `PickingPlugin` has been renamed to
`is_hover_enabled`
- The `focus_should_run` run condition has been renamed to
`hover_should_run`
# Objective
Rust-Analyzer was reporting problems with dead code in the 3d testbed
scene.
## Solution
These scenes don't work in CI on the Windows runner (because they're too
weak).
Mirror the feature flags from above onto the offending modules.
## Testing
RA no longer complains.
# Objective
Draw the UI debug overlay using the UI renderer.
Significantly simpler and easier to use than
`bevy_dev_tools::ui_debug_overlay` which uses `bevy_gizmos`.
* Supports multiple windows and UI rendered to texture.
* Draws rounded debug rects for rounded UI nodes.
Fixes#16666
## Solution
Removed the `ui_debug_overlay` module from `bevy_dev_tools`.
Added a `bevy_ui_debug` feature gate.
Draw the UI debug overlay using the UI renderer.
Adds a new module `bevy_ui::render::debug_overlay`.
The debug overlay extraction function queries for the existing UI layout
and then adds a border around each UI node with `u32::MAX / 2` added to
each stack index so it's drawn on top.
There is a `UiDebugOptions` resource that can be used to enable or
disable the debug overlay and set the line width.
## Testing
The `testbed_ui` example has been changed to use the new debug overlay:
```
cargo run --example testbed_ui --features bevy_ui_debug
```
Press Space to toggle the debug overlay on and off.
---
## Showcase
<img width="961" alt="testbed-ui-new-debug"
src="https://github.com/user-attachments/assets/e9523d18-39ae-46a8-adbe-7d3f3ab8e951">
## Migration Guide
The `ui_debug_overlay` module has been removed from `bevy_dev_tools`.
There is a new debug overlay implemented using the `bevy_ui` renderer.
To use it, enable the `bevy_ui_debug` feature and set the `enable` field
of the `UiDebugOptions` resource to `true`.
# Objective
- A `Trigger` has multiple associated `Entity`s - the entity observing
the event, and the entity that was targeted by the event.
- The field `entity: Entity` encodes no semantic information about what
the entity is used for, you can already tell that it's an `Entity` by
the type signature!
## Solution
- Rename `trigger.entity()` to `trigger.target()`
---
## Changelog
- `Trigger`s are associated with multiple entities. `Trigger::entity()`
has been renamed to `Trigger::target()` to reflect the semantics of the
entity being returned.
## Migration Guide
- Rename `Trigger::entity()` to `Trigger::target()`.
- Rename `ObserverTrigger::entity` to `ObserverTrigger::target`
# Objective
The `UiBoxShadowSamples` resource should be renamed to
`BoxShadowSamples` so it matches the `BoxShadow` component.
## Migration Guide
`UiBoxShadowSamples` has been renamed to `BoxShadowSamples`
# Objective
Add support for multiple box shadows on a single `Node`.
## Solution
* Rename `BoxShadow` to `ShadowStyle` and remove its `Component` derive.
* Create a new `BoxShadow` component that newtypes a `Vec<ShadowStyle>`.
* Add a `new` constructor method to `BoxShadow` for single shadows.
* Change `extract_shadows` to iterate through a list of shadows per
node.
Render order is determined implicitly from the order of the shadows
stored in the `BoxShadow` component, back-to-front.
Might be more efficient to use a `SmallVec<[ShadowStyle; 1]>` for the
list of shadows but not sure if the extra friction is worth it.
## Testing
Added a node with four differently coloured shadows to the `box_shadow`
example.
---
## Showcase
```
cargo run --example box_shadow
```
<img width="460" alt="four-shadow"
src="https://github.com/user-attachments/assets/2f728c47-33b4-42e1-96ba-28a774b94b24">
## Migration Guide
Bevy UI now supports multiple shadows per node. A new struct
`ShadowStyle` is used to set the style for each shadow. And the
`BoxShadow` component is changed to a tuple struct wrapping a vector
containing a list of `ShadowStyle`s. To spawn a node with a single
shadow you can use the `new` constructor function:
```rust
commands.spawn((
Node::default(),
BoxShadow::new(
Color::BLACK.with_alpha(0.8),
Val::Percent(offset.x),
Val::Percent(offset.y),
Val::Percent(spread),
Val::Px(blur),
)
));
```
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
- I got tired of calling `enable_state_scoped_entities`, and though it
would make more sense to define that at the place where the state is
defined
## Solution
- add a derive attribute `#[states(scoped_entities)]` when derive
`States` or `SubStates` that enables it automatically when adding the
state
## Testing
- Ran the examples using it, they still work
# Objective
Run `testbed_ui` example:
```
cargo run --example testbed_ui
```
The scroll list is non-scrollable because it's blocked by the front
four-icon node.
## Solution
Add `PickingBehavior::IGNORE` for the front node
## Testing
- Did you test these changes? If so, how?
Yes.
- Are there any parts that need more testing?
No, I guess.
- How can other people (reviewers) test your changes? Is there anything
specific they need to know?
```
cargo run --example testbed_ui
```
- If relevant, what platforms did you test these changes on, and are
there any important ones you can't test?
macOS.
# Objective
- Progress towards #15918
- Add test on UI
## Solution
- Get a single screenshot from the UI testbed example
- Remove older examples from runs in CI as they're covered by the
testbed to reduce CI duration
# Objective
UI Anti-aliasing is incorrectly implemented. It always uses an edge
radius of 0.25 logical pixels, and ignores the physical resolution. For
low dpi screens 0.25 is is too low and on higher dpi screens the
physical edge radius is much too large, resulting in visual artifacts.
## Solution
Multiply the distance by the scale factor in the `antialias` function so
that the edge radius stays constant in physical pixels.
## Testing
To see the problem really clearly run the button example with `UiScale`
set really high. With `UiScale(25.)` on main if you examine the button's
border you can see a thick gradient fading away from the edges:
<img width="127" alt="edgg"
src="https://github.com/user-attachments/assets/7c852030-c0e8-4aef-8d3e-768cb2464cab">
With this PR the edges are sharp and smooth at all scale factors:
<img width="127" alt="edge"
src="https://github.com/user-attachments/assets/b3231140-1bbc-4a4f-a1d3-dde21f287988">
# Objective
- Fixes#16235
## Solution
- Both Bevy and AccessKit export a `Node` struct, to reduce confusion
Bevy will no longer re-export `AccessKit` from `bevy_a11y`
## Testing
- Tested locally
## Migration Guide
```diff
# main.rs
-- use bevy_a11y::{
-- accesskit::{Node, Rect, Role},
-- AccessibilityNode,
-- };
++ use bevy_a11y::AccessibilityNode;
++ use accesskit::{Node, Rect, Role};
# Cargo.toml
++ accesskit = "0.17"
```
- Users will need to add `accesskit = "0.17"` to the dependencies
section of their `Cargo.toml` file and update their `accesskit` use
statements to come directly from the external crate instead of
`bevy_a11y`.
- Make sure to keep the versions of `accesskit` aligned with the
versions Bevy uses.
# Objective
- Checks screenshots on Windows
- Progress towards #15918
## Solution
- Checks screenshots on Windows
- Also disable the helmet gltf scene in windows ci as it doesn't work
# Objective
- Progress towards #15918
- Add tests for 3d
## Solution
- Add tests that cover lights, bloom, gltf and animation
- Removed examples `contributors` and `load_gltf` as they don't
contribute additional checks to CI
## Testing
- `CI_TESTING_CONFIG=.github/example-run/testbed_3d.ron cargo run
--example testbed_3d --features "bevy_ci_testing"`
# Objective
- Make progress for #15918
- Start with 2d
## Solution
- Remove screenshots for existing examples as they're not deterministic
- Create new "testbed" example category, with a 2d one to start
## Testing
- Run `CI_TESTING_CONFIG=.github/example-run/testbed_2d.ron cargo run
--example testbed_2d --features "bevy_ci_testing"`
- ???
- Check the screenshots
