# Objective
[Rust 1.72.0](https://blog.rust-lang.org/2023/08/24/Rust-1.72.0.html) is
now stable.
# Notes
- `let-else` formatting has arrived!
- I chose to allow `explicit_iter_loop` due to
https://github.com/rust-lang/rust-clippy/issues/11074.
We didn't hit any of the false positives that prevent compilation, but
fixing this did produce a lot of the "symbol soup" mentioned, e.g. `for
image in &mut *image_events {`.
Happy to undo this if there's consensus the other way.
---------
Co-authored-by: François <mockersf@gmail.com>
# Objective
- Fixes#9552
## Solution
- Only n_pixels bytes of data was being copied instead of 1 byte per
component, i.e. n_pixels * 4
---
## Changelog
- Fixed: loading of Rgb8 ktx2 files.
# Objective
- Fix blender gltf imports with emissive materials
- Progress towards https://github.com/bevyengine/bevy/issues/5178
## Solution
- Upgrade to gltf-rs 1.3 supporiting
[KHR_materials_emissive_strength](https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_materials_emissive_strength/README.md)
---
## Changelog
- GLTF files using `emissiveStrength` (such as those exported by
blender) are now supported
## Migration Guide
- The GLTF asset loader will now factor in `emissiveStrength` when
converting to Bevy's `StandardMaterial::emissive`. Blender will export
emissive materials using this field. Remove the field from your GLTF
files or manually modify your materials post-asset-load to match how
Bevy would load these files in previous versions.
# Objective
Fixes incorrect docs in `bevy_ui` for `JustifyItems` and `JustifySelf`.
## Solution
`JustifyItems` and `JustifySelf` target the main axis and not the cross
axis.
# Objective
`round_ties_up` checks the predicate:
```rust
0. <= value || value.fract() != 0.5
```
which is meant to determine if the value is negative with a fractional
part of `0.5`.
However given a negative value, `fract` returns a negative fraction so
the predicate is true for all numeric values and `ceil` is never called.
## Solution
Changed the predicate to `value.fract() != -0.5` and added a test.
Also improved the comments a bit.
# Objective
Fix a few issues with some of the examples:
* Root UI nodes have an implicit parent with `FlexDirection::Row` and
`AlignItems::Stretch` set. Only a width constraint is needed to fill the
viewport. Specifying ```height: Val::Percent(100.)``` is unnecessary and
can cause confusing overflow behaviour.
* The default for position and size constraint properties is
`Val::Auto`. Setting `left: Val::Auto`, `max_height: Val::Auto`, etc
does nothing.
## Solution
Delete those lines. There should be no observable differences in the
behaviours of any of the examples.
Also changed a padding setting in the `flex_layout` example to use the
`axes` helper function.
# Objective
In #9355 was added an import using bevy_internal.
This change the import to use `bevy::window` instead of a
`bevy_internal` to run the example outside of the bevy repo.
# Objective
- A few of the `const DEFAULT` properties of the grid feature are not
marked as pub. This is an issue because it means you can't have a
`const` `Style` declaration anymore. Most of the existing properties are
already pub.
## Solution
- add the missing pub
# Objective
- Wireframe currently don't display since #9416
- There is an error
```
2023-08-20T10:06:54.190347Z ERROR bevy_render::render_resource::pipeline_cache: failed to process shader:
error: no definition in scope for identifier: 'vertex_no_morph'
┌─ crates/bevy_pbr/src/render/wireframe.wgsl:26:94
│
26 │ let model = bevy_pbr::mesh_functions::get_model_matrix(vertex_no_morph.instance_index);
│ ^^^^^^^^^^^^^^^ unknown identifier
│
= no definition in scope for identifier: 'vertex_no_morph'
```
## Solution
- Use the correct identifier
# Objective
- Resolves https://github.com/bevyengine/bevy/issues/9440
## Solution
- Remove the doc string mentioning the position of a `NodeBundle`, since
the doc string for the `style` component already explains this ability.
# Objective
There is a `bevy_dylib` feature that cargo automatically creates due to
the bevy_dylib crate being optional.
This can be a footgun as I think we want users to always use the
`dynamic_linking` feature for this. For example `bevy_dylib` was used in
[ridiculous_bevy_hot_reloading:lib.rs#L93](400099bcc1/src/lib.rs (L93))
and since I was using dynamic_linking it ended up hot reloading with a
slightly different configured library causing hot reloading to fail.
## Solution
Use "dep:" syntax in the `dynamic_linking` feature to prevent bevy_dylib
automatically becoming a cargo feature. This is documented here:
https://doc.rust-lang.org/cargo/reference/features.html#optional-dependencies
It will now raise this error when you try to compile with the bevy_dylib
feature:
> error: Package `bevy v0.12.0-dev (C:\Users\Paul\Projects\Rust\bevy)`
does not have feature `bevy_dylib`. It has an optional dependency with
that name, but that dependency uses the "dep:" syntax in the features
table, so it does not have an implicit feature with that name.
---
## Changelog
`bevy_dylib` is no longer a feature
## Migration Guide
If you were using Bevy's `bevy_dylib` feature, use Bevy's
`dynamic_linking` feature instead.
```shell
# 0.11
cargo run --features bevy/bevy_dylib
# 0.12
cargo run --features bevy/dynamic_linking
```
```toml
[dependencies]
# 0.11
bevy = { version = "0.11", features = ["bevy_dylib"] }
# 0.12
bevy = { version = "0.12", features = ["dynamic_linking"] }
```
# Objective
- When spawning a window, it will be white until the GPU is ready to
draw the app. To avoid this, we can make the window invisible and then
make it visible once the gpu is ready. Unfortunately, the visible flag
is not available to users.
## Solution
- Let users change the visible flag
## Notes
This is only user controlled. It would be nice if it was done
automatically by bevy instead but I want to keep this PR simple.
# Objective
PR #6360 changed `TaskPoolOptions` so it is no longer used as a
Resource, but didn't remove the `Resource` derive.
## Solution
Remove the Resource derive from `TaskPoolOptions`, as it is no longer
needed. Also add a Debug derive, because it didn't have it before.
---
## Changelog
- `TaskPoolOptions` no longer derives Resource, and `TaskPoolOptions` &
`TaskPoolThreadAssignmentPolicy` now derive Debug.
## Migration Guide
If for some reason anyone is still using `TaskPoolOptions` as a
Resource, they would now have to use a wrapper type:
```rust
#[derive(Resource)]
pub struct MyTaskPoolOptions(pub TaskPoolOptions);
```
# Objective
Add `GamepadButtonInput` event
Resolves#8988
## Solution
- Add `GamepadButtonInput` type
- Emit `GamepadButtonInput` events whenever `Input<GamepadButton>` is
written to
- Update example
---------
Co-authored-by: François <mockersf@gmail.com>
# Objective
Fixes#9488
## Solution
Set point light radius to always be 0.0. Reading this value from glTF
would require using application specific extras property.
---
## Changelog
### Fixed
- #9488 Point Lights use Range for Radius when importing from GLTF
# Objective
- Example execution on linux/vulkan on CI is segfaulting for unclear
reasons
- This makes a lot of noise on PRs
## Solution
- Switch example execution on Linux to validation jobs (on PR merged).
It will still crash but not block merging, and we'll know when it's
fixed
- Switch example execution on Windows to CI jobs (on PR push). It's a
bit longer than on Linux but provides a useful status
- Disable job commenting on PR with job execution to reduce noise
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
Allow users to specify the power preference when selecting a wgpu
adapter, which is useful for testing or workaround purposes, and makes
the behaviour consistent with the already present check for
`WGPU_BACKEND`.
## Solution
In `WgpuSettings::default()`, allow users to specify the
`WGPU_POWER_PREF` to affect the wgpu adapter choice.
# Objective
fix#9452
when multiple assets are queued to a preregistered loader, only one gets
unblocked when the real loader is registered.
## Solution
i thought async_channel receivers worked like broadcast channels, but in
fact the notification is only received by a single receiver, so only a
single waiting asset is unblocked. close the sender instead so that all
blocked receivers are unblocked.
If a line has one point behind the camera(near plane) then it would
deform or, if the `depth_bias` setting was set to a negative value,
disappear.
## Solution
The issue is that performing a perspective divide does not work
correctly for points behind the near plane and a perspective divide is
used inside the shader to define the line width in screen space.
The solution is to perform near plane clipping manually inside the
shader before the perspective divide is done.
# Objective
Fixes#9455
This change has probably been forgotten in
https://github.com/bevyengine/bevy/pull/8306.
## Solution
Remove the inversion of the Y axis when propagates window change back to
winit.
# Objective
Inconvenient initialization of `UiScale`
## Solution
Change `UiScale` to a tuple struct
## Migration Guide
Replace initialization of `UiScale` like ```UiScale { scale: 1.0 }```
with ```UiScale(1.0)```
# Objective
- Fixes part of #9021
## Solution
- Joint mesh are in format `Unorm8x4` in some gltf file, but Bevy
expects a `Float32x4`. Converts them. Also converts `Unorm16x4`
- According to gltf spec:
https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#skinned-mesh-attributes
> WEIGHTS_n: float, or normalized unsigned byte, or normalized unsigned
short
# Objective
Fix#9089
## Solution
Don't try to draw lines with less than 2 vertices. These would not be
visible either way.
---------
Co-authored-by: François <mockersf@gmail.com>
# Objective
- Currently, (AFAIC, accidentally) after registering an event for a
Gilrs button event, we ignore all subsequent events for the same button
in the same frame, because we don't update our filter. This is rare, but
I noticed it while adding gamepad support to a terminal app rendering at
15fps.
- Related to #4664, but does not quite fix it.
## Solution
- Move the edit to the `Axis<GamepadButton>` resource to when we read
the events from Gilrs.
# Objective
Closes#9115, replaces #9117.
## Solution
Emit event when scene is ready.
---
## Changelog
### Added
- `SceneInstanceReady` event when scene becomes ready.
# Objective
- Fixes https://github.com/bevyengine/bevy/issues/9250
## Changelog
- Move scene spawner systems to a new SpawnScene schedule which is after
Update and before PostUpdate (schedule order:
[PreUpdate][Update][SpawnScene][PostUpdate])
## Migration Guide
- Move scene spawner systems to a new SpawnScene schedule which is after
Update and before PostUpdate (schedule order:
[PreUpdate][Update][SpawnScene][PostUpdate]), you might remove system
ordering code related to scene spawning as the execution order has been
guaranteed by bevy engine.
---------
Co-authored-by: Hennadii Chernyshchyk <genaloner@gmail.com>
Updates the requirements on
[tracy-client](https://github.com/nagisa/rust_tracy_client) to permit
the latest version.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="f38da93ff1"><code>f38da93</code></a>
Test with 1.63.0 for MSRV</li>
<li><a
href="3621e20ccd"><code>3621e20</code></a>
tracing-client-sys: 0.21.1</li>
<li><a
href="bccf04b152"><code>bccf04b</code></a>
tracing-tracy: 0.10.3</li>
<li><a
href="bff27b5218"><code>bff27b5</code></a>
tracy-client: 0.15.2 -> 0.16.0 + fix auto update</li>
<li><a
href="9ed943bd6b"><code>9ed943b</code></a>
Add safe GPU API</li>
<li><a
href="60443cc55c"><code>60443cc</code></a>
Benches fell out of sync</li>
<li><a
href="c346a10998"><code>c346a10</code></a>
Fix version table typo</li>
<li><a
href="0763d2d16c"><code>0763d2d</code></a>
Bump MSRV to 1.60.0</li>
<li><a
href="d483998d48"><code>d483998</code></a>
Update Tracy client bindings to v0.9.1</li>
<li><a
href="dce363444f"><code>dce3634</code></a>
client-sys: 0.20.0, client: 0.15.1, tracing: 0.10.2</li>
<li>Additional commits viewable in <a
href="https://github.com/nagisa/rust_tracy_client/compare/tracy-client-v0.15.0...tracy-client-v0.16.0">compare
view</a></li>
</ul>
</details>
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# Objective
- Significantly reduce the size of MeshUniform by only including
necessary data.
## Solution
Local to world, model transforms are affine. This means they only need a
4x3 matrix to represent them.
`MeshUniform` stores the current, and previous model transforms, and the
inverse transpose of the current model transform, all as 4x4 matrices.
Instead we can store the current, and previous model transforms as 4x3
matrices, and we only need the upper-left 3x3 part of the inverse
transpose of the current model transform. This change allows us to
reduce the serialized MeshUniform size from 208 bytes to 144 bytes,
which is over a 30% saving in data to serialize, and VRAM bandwidth and
space.
## Benchmarks
On an M1 Max, running `many_cubes -- sphere`, main is in yellow, this PR
is in red:
<img width="1484" alt="Screenshot 2023-08-11 at 02 36 43"
src="https://github.com/bevyengine/bevy/assets/302146/7d99c7b3-f2bb-4004-a8d0-4c00f755cb0d">
A reduction in frame time of ~14%.
---
## Changelog
- Changed: Redefined `MeshUniform` to improve performance by using 4x3
affine transforms and reconstructing 4x4 matrices in the shader. Helper
functions were added to `bevy_pbr::mesh_functions` to unpack the data.
`affine_to_square` converts the packed 4x3 in 3x4 matrix data to a 4x4
matrix. `mat2x4_f32_to_mat3x3` converts the 3x3 in mat2x4 + f32 matrix
data back into a 3x3.
## Migration Guide
Shader code before:
```
var model = mesh[instance_index].model;
```
Shader code after:
```
#import bevy_pbr::mesh_functions affine_to_square
var model = affine_to_square(mesh[instance_index].model);
```
# Objective
- When loading gltf files during app creation (for example using a
FromWorld impl and adding that as a resource), no loader was found.
- As the gltf loader can load compressed formats, it needs to know what
the GPU supports so it's not available at app creation time.
## Solution
alternative to #9426
- add functionality to preregister the loader. loading assets with
matching extensions will block until a real loader is registered.
- preregister "gltf" and "glb".
- prereigster image formats.
the way this is set up, if a set of extensions are all registered with a
single preregistration call, then later a loader is added that matches
some of the extensions, assets using the remaining extensions will then
fail. i think that should work well for image formats that we don't know
are supported until later.
Addresses:
```sh
$ cargo build --release --example lighting --target wasm32-unknown-unknown --features webgl
error: none of the selected packages contains these features: webgl, did you mean: webgl2, webp?
```
# Objective
- When following the instructions for the web examples.
- Document clearly the generated file `./target/wasm_example.js`, since
it didn't appear on `git grep` (missing extension)
## Solution
- Follow the feature rename on the docs.
---------
Signed-off-by: Seb Ospina <kraige@gmail.com>
While being nobody other's issue as far I can tell, I want to create a
trait I plan to implement on `App` where more than one schedule is
modified.
My workaround so far was working with a closure that returns an
`ExecutorKind` from a match of the method variable.
It makes it easier for me to being able to clone `ExecutorKind` and I
don't see this being controversial for others working with Bevy.
I did nothing more than adding `Clone` to the derived traits, no
migration guide needed.
(If this worked out then the GitHub editor is not too shabby.)
# Objective
Bevy prefers `mod.rs` inside `module_name` files over `module_name.rs`
collocated with `module_name`. In `bevy_render`, it seems the `window`
modules didn't follow this convention
## Solution
- Follow the `mod.rs` convention.
# Objective
- Fixes#9324
- Audio sinks used to have a custom drop implementation to detach the
sinks because it was not required to keep a reference to it
- With the new audio api, a reference is kept as a component of an
entity
## Solution
- Remove that custom drop implementation, and the option wrapping that
was required for it.
# Objective
In the `game_menu` example:
```rust
let button_icon_style = Style {
width: Val::Px(30.0),
// This takes the icons out of the flexbox flow, to be positioned exactly
position_type: PositionType::Absolute,
// The icon will be close to the left border of the button
left: Val::Px(10.0),
right: Val::Auto,
..default()
};
```
The default value for `right` is `Val::Auto` so that line is unnecessary
and can be removed.
# Objective
Just like
[`set_if_neq`](https://docs.rs/bevy_ecs/latest/bevy_ecs/change_detection/trait.DetectChangesMut.html#method.set_if_neq),
being able to express the "I don't want to unnecessarily trigger the
change detection" but with the ability to handle the previous value if
change occurs.
## Solution
Add `replace_if_neq` to `DetectChangesMut`.
---
## Changelog
- Added `DetectChangesMut::replace_if_neq`: like `set_if_neq` change the
value only if the new value if different from the current one, but
return the previous value if the change occurs.
# Objective
I found it very difficult to understand how bevy tasks work, and I
concluded that the documentation should be improved for beginners like
me.
## Solution
These changes to the documentation were written from my beginner's
perspective after
some extremely helpful explanations by nil on Discord.
I am not familiar enough with rustdoc yet; when looking at the source, I
found the documentation at the very top of `usages.rs` helpful, but I
don't know where they are rendered. They should probably be linked to
from the main `bevy_tasks` README.
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Mike <mike.hsu@gmail.com>
