This commit fixes two issues in auto_exposure.wgsl:
* A `storageBarrier()` was incorrectly used where a `workgroupBarrier()`
should be used instead;
* Resetting the `histogram_shared` array would write beyond the 64th
index, which is out of bounds.
## Solution
The first issue is fixed by using the appropriate workgroupBarrier
instead;
The second issue is fixed by adding a range check before setting
`histogram_shared[local_invocation_index] = 0u`.
## Testing
These changes were tested using the Xcode metal profiler, and I could
not find any noticable change in compute shader performance.
# Objective
- When building for release, there are "unused" warnings:
```
warning: unused import: `bevy_utils::warn_once`
--> crates/bevy_pbr/src/render/mesh_view_bindings.rs:32:5
|
32 | use bevy_utils::warn_once;
| ^^^^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(unused_imports)]` on by default
warning: unused variable: `texture_count`
--> crates/bevy_pbr/src/render/mesh_view_bindings.rs:371:17
|
371 | let texture_count: usize = entries
| ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_texture_count`
|
= note: `#[warn(unused_variables)]` on by default
```
## Solution
- Gate the import and definition by the same cfg as their uses
# Objective
Add an explanation of the differences between `alignment` and `Anchor`
to the `Text2dBundle` docs.
---------
Co-authored-by: Rob Parrett <robparrett@gmail.com>
Co-authored-by: François Mockers <mockersf@gmail.com>
# Objective
- Fixes https://github.com/bevyengine/bevy/issues/12597
The current tracing customization option (the `update_subscriber` field)
was basically unusable because it provides a `dyn Subscriber` and most
layers require a `Subscriber` that also implements `for<'a>
LookupSpan<'a, Data=Data<'a>>`, so it was impossible to add a layer on
top of the `dyn Subscriber`.
This PR provides an alternative way of adding additional tracing layers
to the LogPlugin by instead creating an `Option<Layer>`.
This is enough for most situations because `Option<Layer>` and
`Vec<Layer>` both implement `Layer`.
## Solution
- Replace the `update_subscriber` field of `LogPlugin` with a
`custom_layer` field which is function pointer returning an
`Option<BoxedLayer>`
- Update the examples to showcase that this works:
- with multiple additional layers
- with Layers that were previously problematic, such as
`bevy::log::tracing_subscriber::fmt::layer().with_file(true)` (mentioned
in the issue)
Note that in the example this results in duplicate logs, since we have
our own layer on top of the default `fmt_layer` added in the LogPlugin;
maybe in the future we might want to provide a single one? Or to let the
user customize the default `fmt_layer` ? I still think this change is an
improvement upon the previous solution, which was basically broken.
---
## Changelog
> This section is optional. If this was a trivial fix, or has no
externally-visible impact, you can delete this section.
- The `LogPlugin`'s `update_subscriber` field has been replaced with
`custom_layer` to allow the user to flexibly add a `tracing::Layer` to
the layer stack
## Migration Guide
- The `LogPlugin`'s `update_subscriber` field has been replaced with
`custom_layer`
---------
Co-authored-by: BD103 <59022059+BD103@users.noreply.github.com>
# Objective
Fixes#13097 and other issues preventing the motion blur example from
working on wasm
## Solution
- Use a vec2 for padding
- Fix error initializing the `MotionBlur` struct on wasm+webgl2
- Disable MSAA on wasm+webgl2
- Fix `GlobalsUniform` padding getting added on the shader side for
webgpu builds
## Notes
The motion blur example now runs, but with artifacts. In addition to the
obvious black artifacts, the motion blur or dithering seem to just look
worse in a way I can't really describe. That may be expected.
```
AdapterInfo { name: "ANGLE (Apple, ANGLE Metal Renderer: Apple M1 Max, Unspecified Version)", vendor: 4203, device: 0, device_type: IntegratedGpu, driver: "", driver_info: "", backend: Gl }
```
<img width="1276" alt="Screenshot 2024-04-25 at 6 51 21 AM"
src="https://github.com/bevyengine/bevy/assets/200550/65401d4f-92fe-454b-9dbc-a2d89d3ad963">
# Objective
- **Describe the objective or issue this PR addresses.**
`bevy_asset` includes code
[here](4350ad0bd1/crates/bevy_asset/src/io/wasm.rs (L61))
that references `web_sys::WorkerGlobalScope`. However, `bevy_asset` does
not enable this feature, see
[here](4350ad0bd1/crates/bevy_asset/Cargo.toml (L50)).
Running examples does not catch this problem because the feature is
implicitly included by `wgpu` when `bevy_render` is also a dependency,
see
[bevy_render](4350ad0bd1/crates/bevy_render/Cargo.toml (L73-L80))
and
[wgpu](3b6112d45d/wgpu/Cargo.toml (L201)).
This results in compile errors for environments that are not using
`bevy_render`.
To reproduce the problem, try to build the crate individually for wasm
targets by running `cargo build -p bevy_asset --target
wasm32-unknown-unknown`.
Running `cargo tree -e features --target wasm32-unknown-unknown` helped
diagnose the issue.
## Solution
- **Describe the solution used to achieve the objective above.**
This PR adds the `WorkerGlobalScope` feature to the `web-sys` portion of
`bevy_asset`'s `Cargo.toml`.
It also seems to be the case that `bevy_asset` no longer needs the
`Request` feature, since no code for `Request` is present anymore. I
confirmed that building the crate individually for wasm succeeds without
the feature, so that change is also included here.
This is a little off-topic, but the repository would probably benefit
from some automation around these types of changes, but I'm not sure
what would work there. For example, building each crate individually for
some key targets would work, but is...well, a lot. Happy to follow up if
there is agreement on a good direction.
## Testing
- **Did you test these changes? If so, how?**
- **How can other people (reviewers) test your changes? Is there
anything specific they need to know?**
Building the crate individually for wasm by running `cargo build -p
bevy_asset --target wasm32-unknown-unknown`.
- **Are there any parts that need more testing?**
I don't believe so.
# Objective
With #13245 merged ui tests no longer specify dependency versions.
## Solution
Revert the change to `release.yml` made in #12810 as it's no longer
required.
## Testing
- Merge.
- Wait for a release.
- Observe the release PR body.
cc @BD103
# Objective
- Ever since #13177, the `check-example-showcase-patches-still-work` job
has been failing in the merge queue.
- Specifically, the `asset-source-website.patch` file which modifies
`bevy_asset`'s `lib.rs`.
## Solution
- Re-create the patch.
- Due to new content being added, the line numbers were off.
- Also, turns out that `typos` was checking patch files. This turned
into a CI error, so I disabled that too. Patches shouldn't really be
modified manually, the original source should be. (Also it was erroring
on the commit hash.)
## Testing
- Test the new patch works by running `git apply
tools/example-showcase/asset-source-website.patch`.
- Verify the merge queue passes with the
`check-example-showcase-patches-still-work` job succeeding.
# Objective
Fixes two issues related to #13208.
First, we ensure render resources for a window are always dropped first
to ensure that the `winit::Window` always drops on the main thread when
it is removed from `WinitWindows`. Previously, changes in #12978 caused
the window to drop in the render world, causing issues.
We accomplish this by delaying despawning the window by a frame by
inserting a marker component `ClosingWindow` that indicates the window
has been requested to close and is in the process of closing. The render
world now responds to the equivalent `WindowClosing` event rather than
`WindowCloseed` which now fires after the render resources are
guarunteed to be cleaned up.
Secondly, fixing the above caused (revealed?) that additional events
were being delivered to the the event loop handler after exit had
already been requested: in my testing `RedrawRequested` and
`LoopExiting`. This caused errors to be reported try to send an exit
event on the close channel. There are two options here:
- Guard the handler so no additional events are delivered once the app
is exiting. I ~considered this but worried it might be confusing or bug
prone if in the future someone wants to handle `LoopExiting` or some
other event to clean-up while exiting.~ We are now taking this approach.
- Only send an exit signal if we are not already exiting. ~It doesn't
appear to cause any problems to handle the extra events so this seems
safer.~
Fixing this also appears to have fixed#13231.
Fixes#10260.
## Testing
Tested on mac only.
---
## Changelog
### Added
- A `WindowClosing` event has been added that indicates the window will
be despawned on the next frame.
### Changed
- Windows now close a frame after their exit has been requested.
## Migration Guide
- Ensure custom exit logic does not rely on the app exiting the same
frame as a window is closed.
# Objective
Fixes #13230
## Solution
Uses solution described in #13230
They mention a worry about adding a branch, but I'm not sure there is
one.
This code
```Rust
#[no_mangle]
pub fn next_if_some(num: i32, b: Option<bool>) -> i32 {
num + b.is_some() as i32
}
```
produces this assembly with opt-level 3
```asm
next_if_some:
xor eax, eax
cmp sil, 2
setne al
add eax, edi
ret
```
## Testing
Added test from #13230, tagged it as ignore as it is only useful in
release mode and very slow if you accidentally invoke it in debug mode.
---
## Changelog
Iterationg of ListIter will no longer overflow and wrap around
## Migration Guide
# Objective
I am emboldened by my last small PR and am here with another.
- **Describe the objective or issue this PR addresses.**
It would be nice if `FrameCount` could be used by downstream plugins
that want to use frame data. The example that I have in mind is
[`leafwing_input_playback`](https://github.com/Leafwing-Studios/leafwing_input_playback/issues/29)
which has a [duplicate implementation of
`FrameCount`](https://github.com/Leafwing-Studios/leafwing_input_playback/blob/main/src/frame_counting.rs#L9-L37)
used in several structs which rely on those derives (or otherwise the
higher-level structs would have to implement these traits manually).
That crate, using `FrameCount`, tracks input frames and timestamps and
enables various playback modes.
I am aware that bevy org refrains from deriving lots of unnecessary
stuff on bevy types to avoid compile time creep. It is worth mentioning
the (equally reasonable) alternative that downstream crates _should_
implement some `FrameCount` themselves if they want special behavior
from it.
## Solution
- **Describe the solution used to achieve the objective above.**
I added derives for `PartialEq, Eq, PartialOrd, Ord` and implementations
for `serde::{Deserialize, Serialize}` to `FrameCount`.
## Testing
Manually confirmed that the serde implementation works, but that's all.
Let me know if I should do more here.
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
Sometimes it's nice to iterate over all the coordinate axes using
something like `Vec3::AXES`. This was not available for the
corresponding `Dir` types and now it is.
## Solution
We already have things like `Dir2::X`, `Dir3::Z` and so on, so I just
threw them in an array like the vector types do it. I also slightly
refactored the sphere gizmo code to use `Dir3::AXES` and operate on
directions instead of using `Dir3::new_unchecked`.
## Testing
I looked at the sphere in the `3d_gizmos` example and it seems to work,
so I assume I didn't break anything.
# Objective
Unblocks #11659.
Currently the `Reflect` derive macro has to go through a merge process
for each `#[reflect]`/`#[reflet_value]` attribute encountered on a
container type.
Not only is this a bit inefficient, but it also has a soft requirement
that we can compare attributes such that an error can be thrown on
duplicates, invalid states, etc.
While working on #11659 this proved to be challenging due to the fact
that `syn` types don't implement `PartialEq` or `Hash` without enabling
the `extra-traits` feature.
Ideally, we wouldn't have to enable another feature just to accommodate
this one use case.
## Solution
Removed `ContainerAttributes::merge`.
This was a fairly simple change as we could just have the parsing
functions take `&mut self` instead of returning `Self`.
## Testing
CI should build as there should be no user-facing change.
# Objective
Extracts the state mechanisms into a new crate called "bevy_state".
This comes with a few goals:
- state wasn't really an inherent machinery of the ecs system, and so
keeping it within bevy_ecs felt forced
- by mixing it in with bevy_ecs, the maintainability of our more robust
state system was significantly compromised
moving state into a new crate makes it easier to encapsulate as it's own
feature, and easier to read and understand since it's no longer a
single, massive file.
## Solution
move the state-related elements from bevy_ecs to a new crate
## Testing
- Did you test these changes? If so, how? all the automated tests
migrated and passed, ran the pre-existing examples without changes to
validate.
---
## Migration Guide
Since bevy_state is now gated behind the `bevy_state` feature, projects
that use state but don't use the `default-features` will need to add
that feature flag.
Since it is no longer part of bevy_ecs, projects that use bevy_ecs
directly will need to manually pull in `bevy_state`, trigger the
StateTransition schedule, and handle any of the elements that bevy_app
currently sets up.
---------
Co-authored-by: Kristoffer Søholm <k.soeholm@gmail.com>
# Objective
fixes#13224
adds conversions for Vec3 and Vec4 since these appear so often
## Solution
added Covert trait (couldn't think of good name) for [f32; 4], [f32, 3],
Vec4, and Vec3 along with the symmetric implementation
## Changelog
added conversions between arrays and vector to colors and vice versa
#migration
LinearRgba appears to have already had implicit conversions for [f32;4]
and Vec4
# Objective
Finish the `try_apply` implementation started in #6770 by @feyokorenhof.
Supersedes and closes#6770. Closes#6182
## Solution
Add `try_apply` to `Reflect` and implement it in all the places that
implement `Reflect`.
---
## Changelog
Added `try_apply` to `Reflect`.
---------
Co-authored-by: Feyo Korenhof <feyokorenhof@gmail.com>
Co-authored-by: Gino Valente <49806985+MrGVSV@users.noreply.github.com>
# Objective
- Some developers enable Github Actions for their fork and commit
directly to main. This triggers the `docs.yml` action, which attempts to
deploy the documentation even if Github Pages is not enabled. (It also
creates a `CNAME` file specific to Bevy and should not be used in forks,
even for testing.)
- For an example, see [this
run](https://github.com/tychedelia/bevy/actions/runs/8978912060/job/24660082729).
## Solution
- Only attempt to deploy docs when running from the main Bevy
repository.
- This does not affect us checking `cargo doc` on pull requests, since
that it done in `ci.yml`.
## Testing
It's difficult to test this, but you'd probably:
1. Fork Bevy
2. Cherry pick this PR's commits onto the main branch of your fork.
3. Push another commit to the main branch, triggering Github Actions.
4. Check the Github Actions job summary to ensure that the
`build-and-deploy` job is skipped.
# Objective
Currently, the 2d pipeline only has a transparent pass that is used for
everything. I want to have separate passes for opaque/alpha
mask/transparent meshes just like in 3d.
This PR does the basic work to start adding new phases to the 2d
pipeline and get the current setup a bit closer to 3d.
## Solution
- Use `ViewNode` for `MainTransparentPass2dNode`
- Added `Node2d::StartMainPass`, `Node2d::EndMainPass`
- Rename everything to clarify that the main pass is currently the
transparent pass
---
## Changelog
- Added `Node2d::StartMainPass`, `Node2d::EndMainPass`
## Migration Guide
If you were using `Node2d::MainPass` to order your own custom render
node. You now need to order it relative to `Node2d::StartMainPass` or
`Node2d::EndMainPass`.
WebGL 2 doesn't support variable-length uniform buffer arrays. So we
arbitrarily set the length of the visibility ranges field to 64 on that
platform.
---------
Co-authored-by: IceSentry <c.giguere42@gmail.com>
# Objective
There's a TODO comment above the `AssetMetaCheck` enum mentioning this
should have been done in 0.13
## Solution
Do it in 0.14
## Testing
I've checked that all the asset tests compile. I've also run the
asset_processing and asset_settings tests and they both work.
---
## Changelog
### Changed
-
[`AssetMetaCheck`](https://docs.rs/bevy/latest/bevy/asset/enum.AssetMetaCheck.html)
is no longer a resource and is now a field on the
[`AssetPlugin`](https://docs.rs/bevy/latest/bevy/asset/struct.AssetPlugin.html).
## Migration Guide
Changes to how bevy handles asset meta files now need to be specified
when inserting the `AssetPlugin`.
# Objective
- Adds a basic `Extrusion<T: Primitive2d>` shape, suggestion of #10572
## Solution
- Adds `Measured2d` and `Measured3d` traits for getting the
perimeter/area or area/volume of shapes. This allows implementing
`.volume()` and `.area()` for all extrusions `Extrusion<T: Primitive2d +
Measured2d>` within `bevy_math`
- All existing perimeter, area and volume implementations for primitves
have been moved into implementations of `Measured2d` and `Measured3d`
- Shapes should be extruded along the Z-axis since an extrusion of depth
`0.` should be equivalent in everything but name to the base shape
## Caviats
- I am not sure about the naming. `Extrusion<T>` could also be
`Prism<T>` and the `MeasuredNd` could also be something like
`MeasuredPrimitiveNd`. If you have any other suggestions, please fell
free to share them :)
## Future work
This PR adds a basic `Extrusion` shape and does not implement a lot of
things you might want it to. Some of the future possibilities include:
- [ ] bounding for extrusions
- [ ] making extrusions work with gizmos
- [ ] meshing
---------
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
# Objective
- Some of the "large" crates have sub-crates, usually for things such as
macros.
- For an example, see [`bevy_ecs_macros` at
`bevy_ecs/macros`](4f9f987099/crates/bevy_ecs/macros).
- The one crate that does not follow this convention is
[`bevy_reflect_derive`](4f9f987099/crates/bevy_reflect/bevy_reflect_derive),
which is in the `bevy_reflect/bevy_reflect_derive` folder and not
`bevy_reflect/derive` or `bevy_reflect/macros`.
## Solution
- Rename folder `bevy_reflect_derive` to `derive`.
- I chose to use `derive` instead of `macros` because the crate name
itself ends in `_derive`. (One of only two crates to actually use this
convention, funnily enough.)
## Testing
- Build and test `bevy_reflect` and `bevy_reflect_derive`.
- Apply the following patch to `publish.sh` to run it in `--dry-run`
mode, to test that the path has been successfully updated:
- If you have any security concerns about applying random diffs, feel
free to skip this step. Worst case scenario it fails and Cart has to
manually publish a few crates.
```bash
# Apply patch to make `publish.sh` *not* actually publish anything.
git apply path/to/foo.patch
# Make `publish.sh` executable.
chmod +x tools/publish.sh
# Execute `publish.sh`.
./tools/publish.sh
```
```patch
diff --git a/tools/publish.sh b/tools/publish.sh
index b020bad28..fbcc09281 100644
--- a/tools/publish.sh
+++ b/tools/publish.sh
@@ -49,7 +49,7 @@ crates=(
if [ -n "$(git status --porcelain)" ]; then
echo "You have local changes!"
- exit 1
+ # exit 1
fi
pushd crates
@@ -61,15 +61,15 @@ do
cp ../LICENSE-APACHE "$crate"
pushd "$crate"
git add LICENSE-MIT LICENSE-APACHE
- cargo publish --no-verify --allow-dirty
+ cargo publish --no-verify --allow-dirty --dry-run
popd
- sleep 20
+ # sleep 20
done
popd
echo "Publishing root crate"
-cargo publish --allow-dirty
+cargo publish --allow-dirty --dry-run
echo "Cleaning local state"
git reset HEAD --hard
```
---
## Changelog
- Moved `bevy_reflect_derive` from
`crates/bevy_reflect/bevy_reflect_derive` to
`crates/bevy_reflect/derive`.
Copied almost verbatim from the volumetric fog PR
# Objective
- Managing mesh view layouts is complicated
## Solution
- Extract it to it's own struct
- This was done as part of #13057 and is copied almost verbatim. I
wanted to keep this part of the PR it's own atomic commit in case we
ever have to revert fog or run a bisect. This change is good whether or
not we have volumetric fog.
Co-Authored-By: @pcwalton
# Objective
I'm adopting #9122 and pulling some of the non controversial changes out
to make the final pr easier to review.
This pr removes the NonSend resource usage from `bevy_log`.
## Solution
`tracing-chrome` uses a guard that is stored in the world, so that when
it is dropped the json log file is written out. The guard is Send +
!Sync, so we can store it in a SyncCell to hold it in a regular resource
instead of using a non send resource.
## Testing
Tested by running an example with `-F tracing chrome` and making sure
there weren't any errors and the json file was created.
---
## Changelog
- replaced `bevy_log`'s usage of a non send resource.
# Objective
Since `align` was introduced, it has been reworked to allow the input of
`Dir3` instead of `Vec3`, and we also introduced random sampling for
points on a sphere and then for `Dir3`. Previously, this example rolled
its own random generation, but it doesn't need to any more.
## Solution
Refactor the 'align' example to use `Dir3` instead of `Vec3`, using the
`bevy_math` API for random directions.
Switched the return type from `Vec3` to `Dir3` for directional axis
methods within the `GlobalTransform` component.
## Migration Guide
The `GlobalTransform` component's directional axis methods (e.g.,
`right()`, `left()`, `up()`, `down()`, `back()`, `forward()`) have been
updated from returning `Vec3` to `Dir3`.
# Objective
Fixes#12966
## Solution
Renaming multi_threaded feature to match snake case
## Migration Guide
Bevy feature multi-threaded should be refered to multi_threaded from now
on.
Bumps [crate-ci/typos](https://github.com/crate-ci/typos) from 1.20.10
to 1.21.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/crate-ci/typos/releases">crate-ci/typos's
releases</a>.</em></p>
<blockquote>
<h2>v1.21.0</h2>
<h2>[1.21.0] - 2024-04-30</h2>
<h3>Fixes</h3>
<ul>
<li>Updated the dictionary with the <a
href="https://redirect.github.com/crate-ci/typos/issues/956">April
2024</a> changes</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/crate-ci/typos/blob/master/CHANGELOG.md">crate-ci/typos's
changelog</a>.</em></p>
<blockquote>
<h2>[1.21.0] - 2024-04-30</h2>
<h3>Fixes</h3>
<ul>
<li>Updated the dictionary with the <a
href="https://redirect.github.com/crate-ci/typos/issues/956">April
2024</a> changes</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="d503507db9"><code>d503507</code></a>
chore: Release</li>
<li><a
href="b57a417c99"><code>b57a417</code></a>
chore: Release</li>
<li><a
href="82a3621e90"><code>82a3621</code></a>
chore(ci): Fix a bad merge</li>
<li><a
href="0fef712c2a"><code>0fef712</code></a>
docs: Update changelog</li>
<li><a
href="5aeb9bf914"><code>5aeb9bf</code></a>
Merge pull request <a
href="https://redirect.github.com/crate-ci/typos/issues/1008">#1008</a>
from epage/april</li>
<li><a
href="3f19efbe83"><code>3f19efb</code></a>
chore(deps): Update Rust Stable to v1.77 (<a
href="https://redirect.github.com/crate-ci/typos/issues/1006">#1006</a>)</li>
<li><a
href="7d6e6a1c37"><code>7d6e6a1</code></a>
fix(dict): April updates</li>
<li><a
href="919912762c"><code>9199127</code></a>
Merge pull request <a
href="https://redirect.github.com/crate-ci/typos/issues/1005">#1005</a>
from epage/template</li>
<li><a
href="b6c895ea49"><code>b6c895e</code></a>
chore: Update from _rust/main template</li>
<li><a
href="51de731521"><code>51de731</code></a>
chore(ci): Lint clippy::items_after_statements seems too strict</li>
<li>Additional commits viewable in <a
href="https://github.com/crate-ci/typos/compare/v1.20.10...v1.21.0">compare
view</a></li>
</ul>
</details>
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Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.
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---
<details>
<summary>Dependabot commands and options</summary>
<br />
You can trigger Dependabot actions by commenting on this PR:
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Clearcoat is a separate material layer that represents a thin
translucent layer of a material. Examples include (from the [Filament
spec]) car paint, soda cans, and lacquered wood. This commit implements
support for clearcoat following the Filament and Khronos specifications,
marking the beginnings of support for multiple PBR layers in Bevy.
The [`KHR_materials_clearcoat`] specification describes the clearcoat
support in glTF. In Blender, applying a clearcoat to the Principled BSDF
node causes the clearcoat settings to be exported via this extension. As
of this commit, Bevy parses and reads the extension data when present in
glTF. Note that the `gltf` crate has no support for
`KHR_materials_clearcoat`; this patch therefore implements the JSON
semantics manually.
Clearcoat is integrated with `StandardMaterial`, but the code is behind
a series of `#ifdef`s that only activate when clearcoat is present.
Additionally, the `pbr_feature_layer_material_textures` Cargo feature
must be active in order to enable support for clearcoat factor maps,
clearcoat roughness maps, and clearcoat normal maps. This approach
mirrors the same pattern used by the existing transmission feature and
exists to avoid running out of texture bindings on platforms like WebGL
and WebGPU. Note that constant clearcoat factors and roughness values
*are* supported in the browser; only the relatively-less-common maps are
disabled on those platforms.
This patch refactors the lighting code in `StandardMaterial`
significantly in order to better support multiple layers in a natural
way. That code was due for a refactor in any case, so this is a nice
improvement.
A new demo, `clearcoat`, has been added. It's based on [the
corresponding three.js demo], but all the assets (aside from the skybox
and environment map) are my original work.
[Filament spec]:
https://google.github.io/filament/Filament.html#materialsystem/clearcoatmodel
[`KHR_materials_clearcoat`]:
https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_materials_clearcoat/README.md
[the corresponding three.js demo]:
https://threejs.org/examples/webgl_materials_physical_clearcoat.html
## Changelog
### Added
* `StandardMaterial` now supports a clearcoat layer, which represents a
thin translucent layer over an underlying material.
* The glTF loader now supports the `KHR_materials_clearcoat` extension,
representing materials with clearcoat layers.
## Migration Guide
* The lighting functions in the `pbr_lighting` WGSL module now have
clearcoat parameters, if `STANDARD_MATERIAL_CLEARCOAT` is defined.
* The `R` reflection vector parameter has been removed from some
lighting functions, as it was unused.
# Objective
- `DynamicUniformBuffer` tries to create a buffer as soon as the changed
flag is set to true. This doesn't work correctly when the buffer wasn't
already created. This currently creates a crash because it's trying to
create a buffer of size 0 if the flag is set but there's no buffer yet.
## Solution
- Don't create a changed buffer until there's data that needs to be
written to a buffer.
## Testing
- run `cargo run --example scene_viewer` and see that it doesn't crash
anymore
Fixes#13235
# Objective
Documentation should mention the two plugins required for your custom
`CameraProjection` to work.
## Solution
Documented!
---
I tried linking to `bevy_pbr::PbrProjectionPlugin` from
`bevy_render:📷:CameraProjection` but it wasn't in scope. Is there
a trick to it?
# Objective
- In PR #12882 I added a new example which contained a comment with an
unfinished and cut off sentence. This wasn't caught until after the PR
was merged.
- This simply finishes that comment.
## Solution
- Finished the incomplete comment.
## Testing
- This is simply a comment change so no testing needed other than
reading it.
# Objective
- Per-cluster (instance of a meshlet) data upload is ridiculously
expensive in both CPU and GPU time (8 bytes per cluster, millions of
clusters, you very quickly run into PCIE bandwidth maximums, and lots of
CPU-side copies and malloc).
- We need to be uploading only per-instance/entity data. Anything else
needs to be done on the GPU.
## Solution
- Per instance, upload:
- `meshlet_instance_meshlet_counts_prefix_sum` - An exclusive prefix sum
over the count of how many clusters each instance has.
- `meshlet_instance_meshlet_slice_starts` - The starting index of the
meshlets for each instance within the `meshlets` buffer.
- A new `fill_cluster_buffers` pass once at the start of the frame has a
thread per cluster, and finds its instance ID and meshlet ID via a
binary search of `meshlet_instance_meshlet_counts_prefix_sum` to find
what instance it belongs to, and then uses that plus
`meshlet_instance_meshlet_slice_starts` to find what number meshlet
within the instance it is. The shader then writes out the per-cluster
instance/meshlet ID buffers for later passes to quickly read from.
- I've gone from 45 -> 180 FPS in my stress test scene, and saved
~30ms/frame of overall CPU/GPU time.
# Objective
in response to [13222](https://github.com/bevyengine/bevy/issues/13222)
## Solution
The Image trait was already re-exported in bevy_render/src/lib.rs, So I
added it inline there.
## Testing
Confirmed that it does compile. Simple change, shouldn't cause any
bugs/regressions.
# Objective
`bevy_pbr/utils.wgsl` shader file contains mathematical constants and
color conversion functions. Both of those should be accessible without
enabling `bevy_pbr` feature. For example, tonemapping can be done in non
pbr scenario, and it uses color conversion functions.
Fixes#13207
## Solution
* Move mathematical constants (such as PI, E) from
`bevy_pbr/src/render/utils.wgsl` into `bevy_render/src/maths.wgsl`
* Move color conversion functions from `bevy_pbr/src/render/utils.wgsl`
into new file `bevy_render/src/color_operations.wgsl`
## Testing
Ran multiple examples, checked they are working:
* tonemapping
* color_grading
* 3d_scene
* animated_material
* deferred_rendering
* 3d_shapes
* fog
* irradiance_volumes
* meshlet
* parallax_mapping
* pbr
* reflection_probes
* shadow_biases
* 2d_gizmos
* light_gizmos
---
## Changelog
* Moved mathematical constants (such as PI, E) from
`bevy_pbr/src/render/utils.wgsl` into `bevy_render/src/maths.wgsl`
* Moved color conversion functions from `bevy_pbr/src/render/utils.wgsl`
into new file `bevy_render/src/color_operations.wgsl`
## Migration Guide
In user's shader code replace usage of mathematical constants from
`bevy_pbr::utils` to the usage of the same constants from
`bevy_render::maths`.
# Objective
Dynamic types can be tricky to understand and work with in bevy_reflect.
There should be an example that shows what they are and how they're
used.
## Solution
Add a `Dynamic Types` reflection example.
I'm planning to go through the reflection examples, adding new ones and
updating old ones. And I think this walkthrough style tends to work
best. Due to the amount of text and associated explanation, it might fit
better in a dedicated reflection chapter of the WIP Bevy Book. However,
I think it might be valuable to have some public-facing tutorials for
these concepts.
Let me know if there any thoughts or critiques with the example— both in
content and this overall structure!
## Testing
To test these changes, you can run the example locally:
```
cargo run --example dynamic_types
```
---
## Changelog
- Add `Dynamic Types` reflection example
# Objective
The `custom_loop` example didn't replicate the `app.finish` /
`app.cleanup` calls from the default runner; I discovered this when
trying to troubleshoot why my application with a custom loop wasn't
calling its plugin finalizers, and realised that the upstream example
that I'd referenced didn't have the relevant calls.
## Solution
Added the missing calls, replicating what the default runner does:
d390420093/crates/bevy_app/src/app.rs (L895-L896)
## Testing
I've confirmed that adding these two calls to my application fixed the
issue I was encountering. I haven't tested it within the example itself
as it's relatively straightforward and I didn't want to pollute the
example with a plugin using a finalizer.
# Objective
- In the documentation of the `bevy` crate, we embed the Bevy logo.
([docs.rs](https://docs.rs/bevy/0.13.2/bevy/index.html),
[logo](https://bevyengine.org/assets/bevy_logo_docs.svg))
- It was first added in 9aae341.
- Markdown supports adding alternate descriptions for images that either
cannot be loaded or for screen readers.
## Solution
- Add alt text for the Bevy logo.
---
## Changelog
- Added alt text to Bevy logo.
