# Objective
- Some reflect components weren't properly registered.
## Solution
- We register them
- I also sorted the register lines in `Plugin::build` in `bevy_ui`
### Note
How I did I find them:
- I picked up the list of `Component`s from the `Component` trait page
in rustdoc.
- Then I tried to register all of them. Removing the registration when
it doesn't implement `Reflect` to pass compilation.
- Then I added `app.register_type_data::<T, Foo>()`, for all Reflect
components. It panics if `T` is not registered.
- I repeated the last line N times until bevy stopped panicking at
startup
---
## Changelog
- Register the following components: `PrimaryWindow` `Fxaa`
`FogSettings` `NotShadowCaster` `NotShadowReceiver` `CalculatedClip`
`RelativeCursorPosition`
`AlphaMode` is not used as a component anywhere in the engine. It
shouldn't implement `Component`. It might mislead users into thinking it
has any effect as a component.
---
## Changelog
- Remove `Component` implementation for `AlphaMode`. It wasn't used by
anything.
## Migration Guide
`AlphaMode` is not a component anymore.
It wasn't used anywhere in the engine. If you were using it as a
component for your own purposes, you should use a newtype instead, as
follow:
```rust
#[derive(Component, Deref)]
struct MyAlphaMode(AlphaMode);
```
Then replace uses of `AlphaMode` with `MyAlphaMode`
```diff
- Query<&AlphaMode, …>,
+ Query<&MyAlphaMode, …>,
```
# Objective
- When a window is closed, the associated camera keeps rendering even if
the RenderTarget isn't valid anymore.
- This is essentially just wasting a lot of performance.
## Solution
- Detect the window close event and disable any camera that used the
window has a RenderTarget.
## Notes
It's possible a similar thing could be done for camera that use an image
handle, but I would fix that in a separate PR.
# Objective
`NoFrustumCulling` doesn't implement `Reflect`, while nothing prevents
it from implementing it.
## Solution
Implement `Reflect` for it.
---
## Changelog
- Add `Reflect` derive to `NoFrustrumCulling`.
- Add `FromReflect` derive to `Visibility`.
# Objective
This calculation is performed componentwise but all the values are
vectors so it should be using vector operations.
Works correctly with the `relative_cursor_position` example.
# Objective
To upgrade winit's dependency, it's useful to reuse SmolStr, which
replaces/improves the too restrictive Key letter enums.
As Input<Key> is a resource it should implement Reflect through all its
fields.
## Solution
Add smol_str to bevy_reflect supported types, behind a feature flag.
This PR blocks winit's upgrade PR:
https://github.com/bevyengine/bevy/pull/8745.
# Current state
- I'm discovering bevy_reflect, I appreciate all feedbacks, and send me
your nitpicks!
- Lacking more tests
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: Gino Valente <49806985+MrGVSV@users.noreply.github.com>
# Objective
The goal of this PR is to receive touchpad magnification and rotation
events.
## Solution
Implement pendants for winit's `TouchpadMagnify` and `TouchpadRotate`
events.
Adjust the `mouse_input_events.rs` example to debug magnify and rotate
events.
Since winit only reports these events on macOS, the Bevy events for
touchpad magnification and rotation are currently only fired on macOS.
Updates the requirements on
[notify](https://github.com/notify-rs/notify) to permit the latest
version.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/notify-rs/notify/blob/main/CHANGELOG.md">notify's
changelog</a>.</em></p>
<blockquote>
<h2>notify 6.0.0 (2023-05-17)</h2>
<ul>
<li>CHANGE: files and directories moved into a watch folder on Linux
will now be reported as <code>rename to</code> events instead of
<code>create</code> events <a
href="https://redirect.github.com/notify-rs/notify/issues/480">#480</a></li>
<li>CHANGE: on Linux <code>rename from</code> events will be emitted
immediately without starting a new thread <a
href="https://redirect.github.com/notify-rs/notify/issues/480">#480</a></li>
<li>CHANGE: raise MSRV to 1.60 <a
href="https://redirect.github.com/notify-rs/notify/issues/480">#480</a></li>
</ul>
<h2>debouncer-mini 0.3.0 (2023-05-17)</h2>
<ul>
<li>CHANGE: upgrade to notify 6.0.0, pushing MSRV to 1.60 <a
href="https://redirect.github.com/notify-rs/notify/issues/480">#480</a></li>
</ul>
<h2>debouncer-full 0.1.0 (2023-05-17)</h2>
<p>Newly introduced alternative debouncer with more features. <a
href="https://redirect.github.com/notify-rs/notify/issues/480">#480</a></p>
<ul>
<li>FEATURE: only emit a single <code>rename</code> event if the rename
<code>From</code> and <code>To</code> events can be matched</li>
<li>FEATURE: merge multiple <code>rename</code> events</li>
<li>FEATURE: keep track of the file system IDs all files and stiches
rename events together (FSevents, Windows)</li>
<li>FEATURE: emit only one <code>remove</code> event when deleting a
directory (inotify)</li>
<li>FEATURE: don't emit duplicate create events</li>
<li>FEATURE: don't emit <code>Modify</code> events after a
<code>Create</code> event</li>
</ul>
<p><a
href="https://redirect.github.com/notify-rs/notify/issues/480">#480</a>:
<a
href="https://redirect.github.com/notify-rs/notify/pull/480">notify-rs/notify#480</a></p>
<h2>notify 5.2.0 (2023-05-17)</h2>
<ul>
<li>CHANGE: implement <code>Copy</code> for <code>EventKind</code> and
<code>ModifyKind</code> <a
href="https://redirect.github.com/notify-rs/notify/issues/481">#481</a></li>
</ul>
<p><a
href="https://redirect.github.com/notify-rs/notify/issues/481">#481</a>:
<a
href="https://redirect.github.com/notify-rs/notify/pull/481">notify-rs/notify#481</a></p>
<h2>notify 5.1.0 (2023-01-15)</h2>
<ul>
<li>CHANGE: switch from winapi to windows-sys <a
href="https://redirect.github.com/notify-rs/notify/issues/457">#457</a></li>
<li>FIX: kqueue-backend: batch file-watching together to improve
performance <a
href="https://redirect.github.com/notify-rs/notify/issues/454">#454</a></li>
<li>DOCS: include license file in crate again <a
href="https://redirect.github.com/notify-rs/notify/issues/461">#461</a></li>
<li>DOCS: typo and examples fixups</li>
</ul>
<p><a
href="https://redirect.github.com/notify-rs/notify/issues/454">#454</a>:
<a
href="https://redirect.github.com/notify-rs/notify/pull/454">notify-rs/notify#454</a>
<a
href="https://redirect.github.com/notify-rs/notify/issues/461">#461</a>:
<a
href="https://redirect.github.com/notify-rs/notify/pull/461">notify-rs/notify#461</a>
<a
href="https://redirect.github.com/notify-rs/notify/issues/457">#457</a>:
<a
href="https://redirect.github.com/notify-rs/notify/pull/457">notify-rs/notify#457</a></p>
<h2>debouncer-mini 0.2.1 (2022-09-05)</h2>
<ul>
<li>DOCS: correctly document the <code>crossbeam</code> feature <a
href="https://redirect.github.com/notify-rs/notify/issues/440">#440</a></li>
</ul>
<p><a
href="https://redirect.github.com/notify-rs/notify/issues/440">#440</a>:
<a
href="https://redirect.github.com/notify-rs/notify/pull/440">notify-rs/notify#440</a></p>
<h2>debouncer-mini 0.2.0 (2022-08-30)</h2>
<p>Upgrade notify dependency to 5.0.0</p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
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Updates the requirements on
[ruzstd](https://github.com/KillingSpark/zstd-rs) to permit the latest
version.
<details>
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<blockquote>
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Followup to #7184
This makes `Reflect: DynamicTypePath` which allows us to remove
`Reflect::get_type_path`, reducing unnecessary codegen and simplifying
`Reflect` implementations.
# Objective
Be consistent with `Resource`s and `Components` and have `Event` types
be more self-documenting.
Although not susceptible to accidentally using a function instead of a
value due to `Event`s only being initialized by their type, much of the
same reasoning for removing the blanket impl on `Resource` also applies
here.
* Not immediately obvious if a type is intended to be an event
* Prevent invisible conflicts if the same third-party or primitive types
are used as events
* Allows for further extensions (e.g. opt-in warning for missed events)
## Solution
Remove the blanket impl for the `Event` trait. Add a derive macro for
it.
---
## Changelog
- `Event` is no longer implemented for all applicable types. Add the
`#[derive(Event)]` macro for events.
## Migration Guide
* Add the `#[derive(Event)]` macro for events. Third-party types used as
events should be wrapped in a newtype.
# Objective
It was accidentally found that rustc is unable to parse certain
constructs in `where` clauses properly. `bevy_reflect::Reflect`'s habit
of copying and pasting the field types in a type's definition to its
`where` clauses made it very easy to accidentally run into this
behaviour - particularly with the construct
```rust
where
for<'a> fn(&'a T) -> &'a T: Trait1 + Trait2
```
which was incorrectly parsed as
```rust
where
for<'a> (fn(&'a T) -> &'a T: Trait1 + Trait2)
^ ^ incorrect syntax grouping
```
instead of
```rust
where
(for<'a> fn(&'a T) -> &'a T): Trait1 + Trait2
^ ^ correct syntax grouping
```
Fixes#8759
## Solution
This commit fixes the issue by inserting explicit parentheses to
disambiguate types from their bound lists.
# Objective
- Fixes https://github.com/bevyengine/bevy/issues/8586.
## Solution
- Add `preferred_theme` field to `Window` and set it when window
creation
- Add `window_theme` field to `InternalWindowState` to store current
window theme
- Expose winit `WindowThemeChanged` event
---------
Co-authored-by: hate <15314665+hate@users.noreply.github.com>
Co-authored-by: Nicola Papale <nicopap@users.noreply.github.com>
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
Co-authored-by: François <mockersf@gmail.com>
# Objective
Fixes#8751
## Solution
The doc string for the `primary_window` field on `Window` now mentions
that the default spawned primary window is spawned with the
`PrimaryWindow` marker component.
---------
Co-authored-by: François <mockersf@gmail.com>
# Objective
- Fix#8658
- `without_winit` example panics `thread 'Compute Task Pool (2)'
panicked at 'called `Option::unwrap()` on a `None` value',
crates/bevy_render/src/pipelined_rendering.rs:134:84`
## Solution
- In the default runner method `run_once`, correctly finish the
initialisation of the plugins. `run_once` can't be called twice so it's
ok to do it there
# Objective
I was trying to add some `Diagnostics` to have a better break down of
performance but I noticed that the current implementation uses a
`ResMut` which forces the functions to all run sequentially whereas
before they could run in parallel. This created too great a performance
penalty to be usable.
## Solution
This PR reworks how the diagnostics work with a couple of breaking
changes. The idea is to change how `Diagnostics` works by changing it to
a `SystemParam`. This allows us to hold a `Deferred` buffer of
measurements that can be applied later, avoiding the need for multiple
mutable references to the hashmap. This means we can run systems that
write diagnostic measurements in parallel.
Firstly, we rename the old `Diagnostics` to `DiagnosticsStore`. This
clears up the original name for the new interface while allowing us to
preserve more closely the original API.
Then we create a new `Diagnostics` struct which implements `SystemParam`
and contains a deferred `SystemBuffer`. This can be used very similar to
the old `Diagnostics` for writing new measurements.
```rust
fn system(diagnostics: ResMut<Diagnostics>) { diagnostics.new_measurement(ID, || 10.0)}
// changes to
fn system(mut diagnostics: Diagnostics) { diagnostics.new_measurement(ID, || 10.0)}
```
For reading the diagnostics, the user needs to change from `Diagnostics`
to `DiagnosticsStore` but otherwise the function calls are the same.
Finally, we add a new method to the `App` for registering diagnostics.
This replaces the old method of creating a startup system and adding it
manually.
Testing it, this PR does indeed allow Diagnostic systems to be run in
parallel.
## Changelog
- Change `Diagnostics` to implement `SystemParam` which allows
diagnostic systems to run in parallel.
## Migration Guide
- Register `Diagnostic`'s using the new
`app.register_diagnostic(Diagnostic::new(DIAGNOSTIC_ID,
"diagnostic_name", 10));`
- In systems for writing new measurements, change `mut diagnostics:
ResMut<Diagnostics>` to `mut diagnostics: Diagnostics` to allow the
systems to run in parallel.
- In systems for reading measurements, change `diagnostics:
Res<Diagnostics>` to `diagnostics: Res<DiagnosticsStore>`.
# Objective
- Introduce a stable alternative to
[`std::any::type_name`](https://doc.rust-lang.org/std/any/fn.type_name.html).
- Rewrite of #5805 with heavy inspiration in design.
- On the path to #5830.
- Part of solving #3327.
## Solution
- Add a `TypePath` trait for static stable type path/name information.
- Add a `TypePath` derive macro.
- Add a `impl_type_path` macro for implementing internal and foreign
types in `bevy_reflect`.
---
## Changelog
- Added `TypePath` trait.
- Added `DynamicTypePath` trait and `get_type_path` method to `Reflect`.
- Added a `TypePath` derive macro.
- Added a `bevy_reflect::impl_type_path` for implementing `TypePath` on
internal and foreign types in `bevy_reflect`.
- Changed `bevy_reflect::utility::(Non)GenericTypeInfoCell` to
`(Non)GenericTypedCell<T>` which allows us to be generic over both
`TypeInfo` and `TypePath`.
- `TypePath` is now a supertrait of `Asset`, `Material` and
`Material2d`.
- `impl_reflect_struct` needs a `#[type_path = "..."]` attribute to be
specified.
- `impl_reflect_value` needs to either specify path starting with a
double colon (`::core::option::Option`) or an `in my_crate::foo`
declaration.
- Added `bevy_reflect_derive::ReflectTypePath`.
- Most uses of `Ident` in `bevy_reflect_derive` changed to use
`ReflectTypePath`.
## Migration Guide
- Implementors of `Asset`, `Material` and `Material2d` now also need to
derive `TypePath`.
- Manual implementors of `Reflect` will need to implement the new
`get_type_path` method.
## Open Questions
- [x] ~This PR currently does not migrate any usages of
`std::any::type_name` to use `bevy_reflect::TypePath` to ease the review
process. Should it?~ Migration will be left to a follow-up PR.
- [ ] This PR adds a lot of `#[derive(TypePath)]` and `T: TypePath` to
satisfy new bounds, mostly when deriving `TypeUuid`. Should we make
`TypePath` a supertrait of `TypeUuid`? [Should we remove `TypeUuid` in
favour of
`TypePath`?](2afbd85532 (r961067892))
# Objective
- Continue with #8685 to make `TonyMcMapface` the default tonemapping
## Solution
- Change the default value `Camera3dBundle::tonemapping` from
`Tonemapping::ReinhardLuminance` to `Default::default()`
(`Tonemapping::TonyMcMapface`)
# Objective
- `apply_system_buffers` is an unhelpful name: it introduces a new
internal-only concept
- this is particularly rough for beginners as reasoning about how
commands work is a critical stumbling block
## Solution
- rename `apply_system_buffers` to the more descriptive `apply_deferred`
- rename related fields, arguments and methods in the internals fo
bevy_ecs for consistency
- update the docs
## Changelog
`apply_system_buffers` has been renamed to `apply_deferred`, to more
clearly communicate its intent and relation to `Deferred` system
parameters like `Commands`.
## Migration Guide
- `apply_system_buffers` has been renamed to `apply_deferred`
- the `apply_system_buffers` method on the `System` trait has been
renamed to `apply_deferred`
- the `is_apply_system_buffers` function has been replaced by
`is_apply_deferred`
- `Executor::set_apply_final_buffers` is now
`Executor::set_apply_final_deferred`
- `Schedule::apply_system_buffers` is now `Schedule::apply_deferred`
---------
Co-authored-by: JoJoJet <21144246+JoJoJet@users.noreply.github.com>
# Objective
Fixes#8596
## Solution
Change interface of the trait Map. Adjust implementations of this trait
---
## Changelog
### Changed
- Interface of Map trait
### Added
- `Map::get_at_mut`
## Migration Guide
Every implementor of Map trait would need to implement `get_at_mut`.
Which, judging by changes in this PR, should be fairly trivial.
- Supress false positive `redundant_clone` lints.
- Supress inactionable `result_large_err` lint.
Most of the size(50 out of 68 bytes) is coming from
`naga::WithSpan<naga::valid::ValidationError>`
# Objective
- Make the dependency job successful again
## Solution
- Update the list of duplicates
- Remove a security issue exception not needed anymore
- Also update a dependency that was missed by dependabot
# Objective
Right now it's impossible to construct a MapIter outside of the
bevy_reflect crate, making it impossible to implement the Map trait for
custom map types.
## Solution
Addition of a pub constructor to MapIter.
Updates the requirements on
[android_log-sys](https://github.com/nercury/android_log-sys-rs) to
permit the latest version.
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# Objective
- Showcase the use of `or_else()` as requested. Fixes
https://github.com/bevyengine/bevy/issues/8702
## Solution
- Add an uninitialized resource `Unused`
- Use `or_else()` to evaluate a second run condition
- Add documentation explaining how `or_else()` works
# Objective
The `Condition` trait is only implemented for systems and system
functions that take no input. This can make it awkward to write
conditions that are intended to be used with system piping.
## Solution
Add an `In` generic to the trait. It defaults to `()`.
---
## Changelog
- Made the `Condition` trait generic over system inputs.
# Objective
- Fix Wayland window client side decorations issue on Gnome Wayland,
fixes#3301.
## Solution
- One simple one line solution: Add winit's `wayland-csd-adwaita`
feature to Bevy's `wayland` feature.
Copied from
https://github.com/bevyengine/bevy/issues/3301#issuecomment-1569611257:
### Investigation
1. Gnome forced Wayland apps to implement CSD, whether on their own or
using some libraries like Gnome's official solution
[libdecor](https://gitlab.freedesktop.org/libdecor/libdecor). Many Linux
apps do this with libdecor, like blender, kitty... I think it's not
comfortable for Bevy to fix this problem this way.
2. Winit has support for CSD on
wayland(8bb004a1d9/Cargo.toml (L42)),
but Bevy disabled Winit's default features, thus no winit's
`wayland-csd-adwaita` feature. And Bevy's `wayland` feature doesn't
include winit's `wayland-csd-adwaita` feature so users can't get window
decorations on Wayland even with Bevy's `wayland` feature enabled.
3. Many rust UI toolkit, like iced, doesn't disable winit's
`wayland-csd-adwaita` feature.
### Conclusion and one Possible solution
Bevy disabled `winit`'s default features in order to decrease package
size. But I think it's acceptable to add `winit`'s `wayland-csd-adwaita`
feature to Bevy's `wayland` feature gate to fix this issue easily for
this only add on crate: sctk-adwaita.
# Objective
Several of our built-in `Command` types are too public:
- `GetOrSpawn` is public, even though it only makes sense to call it
from within `Commands::get_or_spawn`.
- `Remove` and `RemoveResource` contain public `PhantomData` marker
fields.
## Solution
Remove `GetOrSpawn` and use an anonymous command. Make the marker fields
private.
---
## Migration Guide
The `Command` types `Remove` and `RemoveResource` may no longer be
constructed manually.
```rust
// Before:
commands.add(Remove::<T> {
entity: id,
phantom: PhantomData,
});
// After:
commands.add(Remove::<T>::new(id));
// Before:
commands.add(RemoveResource::<T> { phantom: PhantomData });
// After:
commands.add(RemoveResource::<T>::new());
```
The command type `GetOrSpawn` has been removed. It was not possible to
use this type outside of `bevy_ecs`.
## Objective
- Provide a way to use `CubicCurve` non-iter methods
- Accept a `FnMut` over a `fn` pointer on `iter_samples`
- Improve `build_*_cubic_100_points` benchmark by -45% (this means they
are twice as fast)
### Solution
Previously, the only way to iterate over an evenly spaced set of points
on a `CubicCurve` was to use one of the `iter_*` methods.
The return value of those methods were bound by `&self` lifetime, making
them unusable in certain contexts.
Furthermore, other `CubicCurve` methods (`position`, `velocity`,
`acceleration`) required normalizing `t` over the `CubicCurve`'s
internal segment count.
There were no way to access this segment count, making those methods
pretty much unusable.
The newly added `segment_count` allows accessing the segment count.
`iter_samples` used to accept a `fn`, a function pointer. This is
surprising and contrary to the rust stdlib APIs, which accept `Fn`
traits for `Iterator` combinators.
`iter_samples` now accepts a `FnMut`.
I don't trust a bit the bevy benchmark suit, but according to it, this
doubles (-45%) the performance on the `build_pos_cubic_100_points` and
`build_accel_cubic_100_points` benchmarks.
---
## Changelog
- Added the `CubicCurve::segments` method to access the underlying
segments of a cubic curve
- Allow closures as `CubicCurve::iter_samples` `sample_function`
argument.
# Objective
Add documentation to `Query` and `QueryState` errors in bevy_ecs
(`QuerySingleError`, `QueryEntityError`, `QueryComponentError`)
## Solution
- Change display message for `QueryEntityError::QueryDoesNotMatch`: this
error can also happen when the entity has a component which is filtered
out (with `Without<C>`)
- Fix wrong reference in the documentation of `Query::get_component` and
`Query::get_component_mut` from `QueryEntityError` to
`QueryComponentError`
- Complete the documentation of the three error enum variants.
- Add examples for `QueryComponentError::MissingReadAccess` and
`QueryComponentError::MissingWriteAccess`
- Add reference to `QueryState` in `QueryEntityError`'s documentation.
---
## Migration Guide
Expect `QueryEntityError::QueryDoesNotMatch`'s display message to
change? Not sure that counts.
---------
Co-authored-by: harudagondi <giogdeasis@gmail.com>
# Objective
- Make #8015 easier to review;
## Solution
- This commit contains changes not directly related to transmission
required by #8015, in easier-to-review, one-change-per-commit form.
---
## Changelog
### Fixed
- Clear motion vector prepass using `0.0` instead of `1.0`, to avoid TAA
artifacts on transparent objects against the background;
### Added
- The `E` mathematical constant is now available for use in shaders,
exposed under `bevy_pbr::utils`;
- A new `TAA` shader def is now available, for conditionally enabling
shader logic via `#ifdef` when TAA is enabled; (e.g. for jittering
texture samples)
- A new `FallbackImageZero` resource is introduced, for when a fallback
image filled with zeroes is required;
- A new `RenderPhase<I>::render_range()` method is introduced, for
render phases that need to render their items in multiple parceled out
“steps”;
### Changed
- The `MainTargetTextures` struct now holds both `Texture` and
`TextureViews` for the main textures;
- The fog shader functions under `bevy_pbr::fog` now take the a `Fog`
structure as their first argument, instead of relying on the global
`fog` uniform;
- The main textures can now be used as copy sources;
## Migration Guide
- `ViewTarget::main_texture()` and `ViewTarget::main_texture_other()`
now return `&Texture` instead of `&TextureView`. If you were relying on
these methods, replace your usage with
`ViewTarget::main_texture_view()`and
`ViewTarget::main_texture_other_view()`, respectively;
- `ViewTarget::sampled_main_texture()` now returns `Option<&Texture>`
instead of a `Option<&TextureView>`. If you were relying on this method,
replace your usage with `ViewTarget::sampled_main_texture_view()`;
- The `apply_fog()`, `linear_fog()`, `exponential_fog()`,
`exponential_squared_fog()` and `atmospheric_fog()` functions now take a
configurable `Fog` struct. If you were relying on them, update your
usage by adding the global `fog` uniform as their first argument;
Change the default tonemapping method from ReinhardLuminance to
TonyMcMapface, which generally looks nicer and works out of the box with
bloom.
---
## Changelog
- TonyMcMapface is now the default tonemapper, instead of
ReinhardLuminance.
## Migration Guide
- The default tonemapper has been changed from ReinhardLuminance to
TonyMcMapface. Explicitly set ReinhardLuminance on your cameras to get
back the previous look.
# Objective
When using `FromReflect`, fields can be optionally left out if they are
marked with `#[reflect(default)]`. This is very handy for working with
serialized data as giant structs only need to list a subset of defined
fields in order to be constructed.
<details>
<summary>Example</summary>
Take the following struct:
```rust
#[derive(Reflect, FromReflect)]
struct Foo {
#[reflect(default)]
a: usize,
#[reflect(default)]
b: usize,
#[reflect(default)]
c: usize,
#[reflect(default)]
d: usize,
}
```
Since all the fields are default-able, we can successfully call
`FromReflect` on deserialized data like:
```rust
(
"foo::Foo": (
// Only set `b` and default the rest
b: 123
)
)
```
</details>
Unfortunately, this does not work with fields in enum variants. Marking
a variant field as `#[reflect(default)]` does nothing when calling
`FromReflect`.
## Solution
Allow enum variant fields to define a default value using
`#[reflect(default)]`.
### `#[reflect(Default)]`
One thing that structs and tuple structs can do is use their `Default`
implementation when calling `FromReflect`. Adding `#[reflect(Default)]`
to the struct or tuple struct both registers `ReflectDefault` and alters
the `FromReflect` implementation to use `Default` to generate any
missing fields.
This works well enough for structs and tuple structs, but for enums it's
not as simple. Since the `Default` implementation for an enum only
covers a single variant, it's not as intuitive as to what the behavior
will be. And (imo) it feels weird that we would be able to specify
default values in this way for one variant but not the others.
Because of this, I chose to not implement that behavior here. However,
I'm open to adding it in if anyone feels otherwise.
---
## Changelog
- Allow enum variant fields to define a default value using
`#[reflect(default)]`
# Objective
Since #8446, example `shader_prepass` logs the following error on my mac
m1:
```
ERROR bevy_render::render_resource::pipeline_cache: failed to process shader:
error: Entry point fragment at Fragment is invalid
= Argument 1 varying error
= Capability MULTISAMPLED_SHADING is not supported
```
The example display the 3d scene but doesn't change with the preps
selected
Maybe related to this update in naga:
cc3a8ac737
## Solution
- Disable MSAA in the example, and check if it's enabled in the shader
# Objective
Fix#7833.
Safety comments in the multi-threaded executor don't really talk about
system world accesses, which makes it unclear if the code is actually
valid.
## Solution
Update the `System` trait to use `UnsafeWorldCell`. This type's API is
written in a way that makes it much easier to cleanly maintain safety
invariants. Use this type throughout the multi-threaded executor, with a
liberal use of safety comments.
---
## Migration Guide
The `System` trait now uses `UnsafeWorldCell` instead of `&World`. This
type provides a robust API for interior mutable world access.
- The method `run_unsafe` uses this type to manage world mutations
across multiple threads.
- The method `update_archetype_component_access` uses this type to
ensure that only world metadata can be used.
```rust
let mut system = IntoSystem::into_system(my_system);
system.initialize(&mut world);
// Before:
system.update_archetype_component_access(&world);
unsafe { system.run_unsafe(&world) }
// After:
system.update_archetype_component_access(world.as_unsafe_world_cell_readonly());
unsafe { system.run_unsafe(world.as_unsafe_world_cell()) }
```
---------
Co-authored-by: James Liu <contact@jamessliu.com>
# Objective
- Right now we can't really benefit from [early depth
testing](https://www.khronos.org/opengl/wiki/Early_Fragment_Test) in our
PBR shader because it includes codepaths with `discard`, even for
situations where they are not necessary.
## Solution
- This PR introduces a new `MeshPipelineKey` and shader def,
`MAY_DISCARD`;
- All possible material/mesh options that that may result in `discard`s
being needed must set `MAY_DISCARD` ahead of time:
- Right now, this is only `AlphaMode::Mask(f32)`, but in the future
might include other options/effects; (e.g. one effect I'm personally
interested in is bayer dither pseudo-transparency for LOD transitions of
opaque meshes)
- Shader codepaths that can `discard` are guarded by an `#ifdef
MAY_DISCARD` preprocessor directive:
- Right now, this is just one branch in `alpha_discard()`;
- If `MAY_DISCARD` is _not_ set, the `@early_depth_test` attribute is
added to the PBR fragment shader. This is a not yet documented, possibly
non-standard WGSL extension I found browsing Naga's source code. [I
opened a PR to document it
there](https://github.com/gfx-rs/naga/pull/2132). My understanding is
that for backends where this attribute is supported, it will force an
explicit opt-in to early depth test. (e.g. via
`layout(early_fragment_tests) in;` in GLSL)
## Caveats
- I included `@early_depth_test` for the sake of us being explicit, and
avoiding the need for the driver to be “smart” about enabling this
feature. That way, if we make a mistake and include a `discard`
unguarded by `MAY_DISCARD`, it will either produce errors or noticeable
visual artifacts so that we'll catch early, instead of causing a
performance regression.
- I'm not sure explicit early depth test is supported on the naga Metal
backend, which is what I'm currently using, so I can't really test the
explicit early depth test enable, I would like others with Vulkan/GL
hardware to test it if possible;
- I would like some guidance on how to measure/verify the performance
benefits of this;
- If I understand it correctly, this, or _something like this_ is needed
to fully reap the performance gains enabled by #6284;
- This will _most definitely_ conflict with #6284 and #6644. I can fix
the conflicts as needed, depending on whether/the order they end up
being merging in.
---
## Changelog
### Changed
- Early depth tests are now enabled whenever possible for meshes using
`StandardMaterial`, reducing the number of fragments evaluated for
scenes with lots of occlusions.
# Objective
- fix clippy lints early to make sure CI doesn't break when they get
promoted to stable
- have a noise-free `clippy` experience for nightly users
## Solution
- `cargo clippy --fix`
- replace `filter_map(|x| x.ok())` with `map_while(|x| x.ok())` to fix
potential infinite loop in case of IO error
# Objective
Fix#8604
## Solution
Use `.add_srgb_suffix()` when creating the screenshot texture.
Allow converting `Bgra8Unorm` images.
Only a two line change for the fix, the `screenshot.rs` changes are just
a bit of cleanup.
# Objective
Fix warnings:
```rs
warning: variable does not need to be mutable
--> /bevy/crates/bevy_app/src/plugin_group.rs:147:13
|
147 | let mut plugin_entry = self
| ----^^^^^^^^^^^^
| |
| help: remove this `mut`
|
= note: `#[warn(unused_mut)]` on by default
warning: variable does not need to be mutable
--> /bevy/crates/bevy_app/src/plugin_group.rs:161:13
|
161 | let mut plugin_entry = self
| ----^^^^^^^^^^^^
| |
| help: remove this `mut`
warning: `bevy_app` (lib) generated 2 warnings (run `cargo fix --lib -p bevy_app` to apply 2 suggestions)
warning: variable does not need to be mutable
--> /bevy/crates/bevy_render/src/view/window.rs:126:13
|
126 | ... let mut extracted_window = extracted_windows.entry(entity).or_insert(Extracte...
| ----^^^^^^^^^^^^^^^^
|
= note: `#[warn(unused_mut)]` on by default
warning: `bevy_render` (lib) generated 1 warning (run `cargo fix --lib -p bevy_render` to apply 1 suggestion)
```
## Solution
- Remove the mut keyword in those variables.
# Objective
Reduce missing docs warning noise when building examples for wasm
## Solution
Added "#[allow(missing_docs)]" on the wasm specific version of
BoxedFuture
# Objective
Fix the examples many_buttons and many_glyphs not working on the WebGPU
examples page. Currently they both fail with the follow error:
```
panicked at 'Only FIFO/Auto* is supported on web', ..../wgpu-0.16.0/src/backend/web.rs:1162:13
```
## Solution
Change `present_mode` from `PresentMode::Immediate` to
`PresentMode::AutoNoVsync`. AutoNoVsync seems to be common mode used by
other examples of this kind.
