89d652ba3a
1295 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Marco Buono
|
12a2f83edd
|
Add consuming builder methods for more ergonomic Mesh creation (#10056)
# Objective
- This PR aims to make creating meshes a little bit more ergonomic,
specifically by removing the need for intermediate mutable variables.
## Solution
- We add methods that consume the `Mesh` and return a mesh with the
specified changes, so that meshes can be entirely constructed via
builder-style calls, without intermediate variables;
- Methods are flagged with `#[must_use]` to ensure proper use;
- Examples are updated to use the new methods where applicable. Some
examples are kept with the mutating methods so that users can still
easily discover them, and also where the new methods wouldn't really be
an improvement.
## Examples
Before:
```rust
let mut mesh = Mesh::new(PrimitiveTopology::TriangleList);
mesh.insert_attribute(Mesh::ATTRIBUTE_POSITION, vs);
mesh.insert_attribute(Mesh::ATTRIBUTE_NORMAL, vns);
mesh.insert_attribute(Mesh::ATTRIBUTE_UV_0, vts);
mesh.set_indices(Some(Indices::U32(tris)));
mesh
```
After:
```rust
Mesh::new(PrimitiveTopology::TriangleList)
.with_inserted_attribute(Mesh::ATTRIBUTE_POSITION, vs)
.with_inserted_attribute(Mesh::ATTRIBUTE_NORMAL, vns)
.with_inserted_attribute(Mesh::ATTRIBUTE_UV_0, vts)
.with_indices(Some(Indices::U32(tris)))
```
Before:
```rust
let mut cube = Mesh::from(shape::Cube { size: 1.0 });
cube.generate_tangents().unwrap();
PbrBundle {
mesh: meshes.add(cube),
..default()
}
```
After:
```rust
PbrBundle {
mesh: meshes.add(
Mesh::from(shape::Cube { size: 1.0 })
.with_generated_tangents()
.unwrap(),
),
..default()
}
```
---
## Changelog
- Added consuming builder methods for more ergonomic `Mesh` creation:
`with_inserted_attribute()`, `with_removed_attribute()`,
`with_indices()`, `with_duplicated_vertices()`,
`with_computed_flat_normals()`, `with_generated_tangents()`,
`with_morph_targets()`, `with_morph_target_names()`.
|
||
|
Rob Parrett
|
39c68e3f92
|
More ergonomic spatial audio (#9800)
# Objective
Spatial audio was heroically thrown together at the last minute for Bevy
0.10, but right now it's a bit of a pain to use -- users need to
manually update audio sinks with the position of the listener / emitter.
Hopefully the migration guide entry speaks for itself.
## Solution
Add a new `SpatialListener` component and automatically update sinks
with the position of the listener and and emitter.
## Changelog
`SpatialAudioSink`s are now automatically updated with positions of
emitters and listeners.
## Migration Guide
Spatial audio now automatically uses the transform of the `AudioBundle`
and of an entity with a `SpatialListener` component.
If you were manually scaling emitter/listener positions, you can use the
`spatial_scale` field of `AudioPlugin` instead.
```rust
// Old
commands.spawn(
SpatialAudioBundle {
source: asset_server.load("sounds/Windless Slopes.ogg"),
settings: PlaybackSettings::LOOP,
spatial: SpatialSettings::new(listener_position, gap, emitter_position),
},
);
fn update(
emitter_query: Query<(&Transform, &SpatialAudioSink)>,
listener_query: Query<&Transform, With<Listener>>,
) {
let listener = listener_query.single();
for (transform, sink) in &emitter_query {
sink.set_emitter_position(transform.translation);
sink.set_listener_position(*listener, gap);
}
}
// New
commands.spawn((
SpatialBundle::from_transform(Transform::from_translation(emitter_position)),
AudioBundle {
source: asset_server.load("sounds/Windless Slopes.ogg"),
settings: PlaybackSettings::LOOP.with_spatial(true),
},
));
commands.spawn((
SpatialBundle::from_transform(Transform::from_translation(listener_position)),
SpatialListener::new(gap),
));
```
## Discussion
I removed `SpatialAudioBundle` because the `SpatialSettings` component
was made mostly redundant, and without that it was identical to
`AudioBundle`.
`SpatialListener` is a bare component and not a bundle which is feeling
like a maybe a strange choice. That happened from a natural aversion
both to nested bundles and to duplicating `Transform` etc in bundles and
from figuring that it is likely to just be tacked on to some other
bundle (player, head, camera) most of the time.
Let me know what you think about these things / everything else.
---------
Co-authored-by: Mike <mike.hsu@gmail.com>
|
||
|
radiish
|
262846e702
|
reflect: TypePath part 2 (#8768)
# Objective
- Followup to #7184.
- ~Deprecate `TypeUuid` and remove its internal references.~ No longer
part of this PR.
- Use `TypePath` for the type registry, and (de)serialisation instead of
`std::any::type_name`.
- Allow accessing type path information behind proxies.
## Solution
- Introduce methods on `TypeInfo` and friends for dynamically querying
type path. These methods supersede the old `type_name` methods.
- Remove `Reflect::type_name` in favor of `DynamicTypePath::type_path`
and `TypeInfo::type_path_table`.
- Switch all uses of `std::any::type_name` in reflection, non-debugging
contexts to use `TypePath`.
---
## Changelog
- Added `TypePathTable` for dynamically accessing methods on `TypePath`
through `TypeInfo` and the type registry.
- Removed `type_name` from all `TypeInfo`-like structs.
- Added `type_path` and `type_path_table` methods to all `TypeInfo`-like
structs.
- Removed `Reflect::type_name` in favor of
`DynamicTypePath::reflect_type_path` and `TypeInfo::type_path`.
- Changed the signature of all `DynamicTypePath` methods to return
strings with a static lifetime.
## Migration Guide
- Rely on `TypePath` instead of `std::any::type_name` for all stability
guarantees and for use in all reflection contexts, this is used through
with one of the following APIs:
- `TypePath::type_path` if you have a concrete type and not a value.
- `DynamicTypePath::reflect_type_path` if you have an `dyn Reflect`
value without a concrete type.
- `TypeInfo::type_path` for use through the registry or if you want to
work with the represented type of a `DynamicFoo`.
- Remove `type_name` from manual `Reflect` implementations.
- Use `type_path` and `type_path_table` in place of `type_name` on
`TypeInfo`-like structs.
- Use `get_with_type_path(_mut)` over `get_with_type_name(_mut)`.
## Note to reviewers
I think if anything we were a little overzealous in merging #7184 and we
should take that extra care here.
In my mind, this is the "point of no return" for `TypePath` and while I
think we all agree on the design, we should carefully consider if the
finer details and current implementations are actually how we want them
moving forward.
For example [this incorrect `TypePath` implementation for
`String`](
|
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|
Niklas Eicker
|
46f3b26724
|
Improve selection of iOS device in mobile example (#9282)
# Objective - Make sure that users can "just run" the mobile example - Device descriptions like `iPhone SE (3rd generation) (F647334F-D7C1-4BD6-9B5F-0E3D9713C02B) (Shutdown)` currently fail ([issue found](https://github.com/NiklasEi/bevy_game_template/pull/61#discussion_r1269747507) by @CleanCut) ## Solution - Improve the script that grabs the device UUID from the device list |
||
|
François
|
154a490445
|
fix example mesh2d_manual (#9941)
# Objective - After https://github.com/bevyengine/bevy/pull/9903, example `mesh2d_manual` doesn't render anything ## Solution - Fix the example using the new `RenderMesh2dInstances` |
||
|
Zachary Harrold
|
dd46fd3aee
|
Removed anyhow (#10003)
# Objective - Fixes #8140 ## Solution - Added Explicit Error Typing for `AssetLoader` and `AssetSaver`, which were the last instances of `anyhow` in use across Bevy. --- ## Changelog - Added an associated type `Error` to `AssetLoader` and `AssetSaver` for use with the `load` and `save` methods respectively. - Changed `ErasedAssetLoader` and `ErasedAssetSaver` `load` and `save` methods to use `Box<dyn Error + Send + Sync + 'static>` to allow for arbitrary `Error` types from the non-erased trait variants. Note the strict requirements match the pre-existing requirements around `anyhow::Error`. ## Migration Guide - `anyhow` is no longer exported by `bevy_asset`; Add it to your own project (if required). - `AssetLoader` and `AssetSaver` have an associated type `Error`; Define an appropriate error type (e.g., using `thiserror`), or use a pre-made error type (e.g., `anyhow::Error`). Note that using `anyhow::Error` is a drop-in replacement. - `AssetLoaderError` has been removed; Define a new error type, or use an alternative (e.g., `anyhow::Error`) - All the first-party `AssetLoader`'s and `AssetSaver`'s now return relevant (and narrow) error types instead of a single ambiguous type; Match over the specific error type, or encapsulate (`Box<dyn>`, `thiserror`, `anyhow`, etc.) ## Notes A simpler PR to resolve this issue would simply define a Bevy `Error` type defined as `Box<dyn std::error::Error + Send + Sync + 'static>`, but I think this type of error handling should be discouraged when possible. Since only 2 traits required the use of `anyhow`, it isn't a substantive body of work to solidify these error types, and remove `anyhow` entirely. End users are still encouraged to use `anyhow` if that is their preferred error handling style. Arguably, adding the `Error` associated type gives more freedom to end-users to decide whether they want more or less explicit error handling (`anyhow` vs `thiserror`). As an aside, I didn't perform any testing on Android or WASM. CI passed locally, but there may be mistakes for those platforms I missed. |
||
|
IceSentry
|
a962240866
|
Alternate wireframe override api (#10023)
# Objective https://github.com/bevyengine/bevy/pull/7328 introduced an API to override the global wireframe config. I believe it is flawed for a few reasons. This PR uses a non-breaking API. Instead of making the `Wireframe` an enum I introduced the `NeverRenderWireframe` component. Here's the reason why I think this is better: - Easier to migrate since it doesn't change the old behaviour. Essentially nothing to migrate. Right now this PR is a breaking change but I don't think it has to be. - It's similar to other "per mesh" rendering features like NotShadowCaster/NotShadowReceiver - It doesn't force new users to also think about global vs not global if all they want is to render a wireframe - This would also let you filter at the query definition level instead of filtering when running the query ## Solution - Introduce a `NeverRenderWireframe` component that ignores the global config --- ## Changelog - Added a `NeverRenderWireframe` component that ignores the global `WireframeConfig` |
||
|
ickshonpe
|
2e887b856f
|
UI node outlines (#9931)
# Objective Add support for drawing outlines outside the borders of UI nodes. ## Solution Add a new `Outline` component with `width`, `offset` and `color` fields. Added `outline_width` and `outline_offset` fields to `Node`. This is set after layout recomputation by the `resolve_outlines_system`. Properties of outlines: * Unlike borders, outlines have to be the same width on each edge. * Outlines do not occupy any space in the layout. * The `Outline` component won't be added to any of the UI node bundles, it needs to be inserted separately. * Outlines are drawn outside the node's border, so they are clipped using the clipping rect of their entity's parent UI node (if it exists). * `Val::Percent` outline widths are resolved based on the width of the outlined UI node. * The offset of the `Outline` adds space between an outline and the edge of its node. I was leaning towards adding an `outline` field to `Style` but a separate component seems more efficient for queries and change detection. The `Outline` component isn't added to bundles for the same reason. --- ## Examples * This image is from the `borders` example from the Bevy UI examples but modified to include outlines. The UI nodes are the dark red rectangles, the bright red rectangles are borders and the white lines offset from each node are the outlines. The yellow rectangles are separate nodes contained with the dark red nodes: <img width="406" alt="outlines" src="https://github.com/bevyengine/bevy/assets/27962798/4e6f315a-019f-42a4-94ee-cca8e684d64a"> * This is from the same example but using a branch that implements border-radius. Here the the outlines are in orange and there is no offset applied. I broke the borders implementation somehow during the merge, which is why some of the borders from the first screenshot are missing 😅. The outlines work nicely though (as long as you can forgive the lack of anti-aliasing):  --- ## Notes As I explained above, I don't think the `Outline` component should be added to UI node bundles. We can have helper functions though, perhaps something as simple as: ```rust impl NodeBundle { pub fn with_outline(self, outline: Outline) -> (Self, Outline) { (self, outline) } } ``` I didn't include anything like this as I wanted to keep the PR's scope as narrow as possible. Maybe `with_outline` should be in a trait that we implement for each UI node bundle. --- ## Changelog Added support for outlines to Bevy UI. * The `Outline` component adds an outline to a UI node. * The `outline_width` field added to `Node` holds the resolved width of the outline, which is set by the `resolve_outlines_system` after layout recomputation. * Outlines are drawn by the system `extract_uinode_outlines`. |
||
|
Ame :]
|
7541bf862c
|
Fix some warnings shown in nightly (#10012)
# Objective
Fix warnings:
- #[warn(clippy::needless_pass_by_ref_mut)]
- #[warn(elided_lifetimes_in_associated_constant)]
## Solution
- Remove mut
- add &'static
## Errors
```rust
warning: this argument is a mutable reference, but not used mutably
--> crates/bevy_hierarchy/src/child_builder.rs:672:31
|
672 | fn assert_children(world: &mut World, parent: Entity, children: Option<&[Entity]>) {
| ^^^^^^^^^^ help: consider changing to: `&World`
|
= note: this is cfg-gated and may require further changes
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_pass_by_ref_mut
= note: `#[warn(clippy::needless_pass_by_ref_mut)]` on by default
```
```rust
warning: `&` without an explicit lifetime name cannot be used here
--> examples/shader/post_processing.rs:120:21
|
120 | pub const NAME: &str = "post_process";
| ^
|
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #115010 <https://github.com/rust-lang/rust/issues/115010>
= note: `#[warn(elided_lifetimes_in_associated_constant)]` on by default
help: use the `'static` lifetime
|
120 | pub const NAME: &'static str = "post_process";
| +++++++
```
|
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Wybe Westra
|
f9e50e767b
|
Allow overriding global wireframe setting. (#7328)
# Objective Allow the user to choose between "Add wireframes to these specific entities" or "Add wireframes to everything _except_ these specific entities". Fixes #7309 # Solution Make the `Wireframe` component act like an override to the global configuration. Having `global` set to `false`, and adding a `Wireframe` with `enable: true` acts exactly as before. But now the opposite is also possible: Set `global` to `true` and add a `Wireframe` with `enable: false` will draw wireframes for everything _except_ that entity. Updated the example to show how overriding the global config works. |
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Bruce Mitchener
|
9a798aa100
|
Allow clippy::type_complexity in more places. (#9796)
# Objective - See fewer warnings when running `cargo clippy` locally. ## Solution - allow `clippy::type_complexity` in more places, which also signals to users they should do the same. |
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Jacques Schutte
|
857fb9c724
|
Remove monkey.gltf (#9974)
# Objective - Fixes #9967 ## Solution - Remove `monkey.gltf` - Added `torus.gltf`, which is two torus meshes joined together, to replace `monkey.gltf` in the examples ## Examples I made `torus.gltf` mainly so that the multiple_windows example clearly shows the different camera angles ### asset_loading  ### hot_asset_reloading  ### multiple_windows:   |
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SADIK KUZU
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483f2464a8
|
Fix typos (#9965)
# Objective - There were a few typos in the project. - This PR fixes these typos. ## Solution - Fixing the typos. Signed-off-by: SADIK KUZU <sadikkuzu@hotmail.com> |
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ickshonpe
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418405046a
|
text_wrap_debug scale factor commandline args (#9951)
# Objective Add commandline arguments to `text_wrap_debug` to set the window and UI scale factors. |
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Robert Swain
|
b6ead2be95
|
Use EntityHashMap<Entity, T> for render world entity storage for better performance (#9903)
# Objective - Improve rendering performance, particularly by avoiding the large system commands costs of using the ECS in the way that the render world does. ## Solution - Define `EntityHasher` that calculates a hash from the `Entity.to_bits()` by `i | (i.wrapping_mul(0x517cc1b727220a95) << 32)`. `0x517cc1b727220a95` is something like `u64::MAX / N` for N that gives a value close to π and that works well for hashing. Thanks for @SkiFire13 for the suggestion and to @nicopap for alternative suggestions and discussion. This approach comes from `rustc-hash` (a.k.a. `FxHasher`) with some tweaks for the case of hashing an `Entity`. `FxHasher` and `SeaHasher` were also tested but were significantly slower. - Define `EntityHashMap` type that uses the `EntityHashser` - Use `EntityHashMap<Entity, T>` for render world entity storage, including: - `RenderMaterialInstances` - contains the `AssetId<M>` of the material associated with the entity. Also for 2D. - `RenderMeshInstances` - contains mesh transforms, flags and properties about mesh entities. Also for 2D. - `SkinIndices` and `MorphIndices` - contains the skin and morph index for an entity, respectively - `ExtractedSprites` - `ExtractedUiNodes` ## Benchmarks All benchmarks have been conducted on an M1 Max connected to AC power. The tests are run for 1500 frames. The 1000th frame is captured for comparison to check for visual regressions. There were none. ### 2D Meshes `bevymark --benchmark --waves 160 --per-wave 1000 --mode mesh2d` #### `--ordered-z` This test spawns the 2D meshes with z incrementing back to front, which is the ideal arrangement allocation order as it matches the sorted render order which means lookups have a high cache hit rate. <img width="1112" alt="Screenshot 2023-09-27 at 07 50 45" src="https://github.com/bevyengine/bevy/assets/302146/e140bc98-7091-4a3b-8ae1-ab75d16d2ccb"> -39.1% median frame time. #### Random This test spawns the 2D meshes with random z. This not only makes the batching and transparent 2D pass lookups get a lot of cache misses, it also currently means that the meshes are almost certain to not be batchable. <img width="1108" alt="Screenshot 2023-09-27 at 07 51 28" src="https://github.com/bevyengine/bevy/assets/302146/29c2e813-645a-43ce-982a-55df4bf7d8c4"> -7.2% median frame time. ### 3D Meshes `many_cubes --benchmark` <img width="1112" alt="Screenshot 2023-09-27 at 07 51 57" src="https://github.com/bevyengine/bevy/assets/302146/1a729673-3254-4e2a-9072-55e27c69f0fc"> -7.7% median frame time. ### Sprites **NOTE: On `main` sprites are using `SparseSet<Entity, T>`!** `bevymark --benchmark --waves 160 --per-wave 1000 --mode sprite` #### `--ordered-z` This test spawns the sprites with z incrementing back to front, which is the ideal arrangement allocation order as it matches the sorted render order which means lookups have a high cache hit rate. <img width="1116" alt="Screenshot 2023-09-27 at 07 52 31" src="https://github.com/bevyengine/bevy/assets/302146/bc8eab90-e375-4d31-b5cd-f55f6f59ab67"> +13.0% median frame time. #### Random This test spawns the sprites with random z. This makes the batching and transparent 2D pass lookups get a lot of cache misses. <img width="1109" alt="Screenshot 2023-09-27 at 07 53 01" src="https://github.com/bevyengine/bevy/assets/302146/22073f5d-99a7-49b0-9584-d3ac3eac3033"> +0.6% median frame time. ### UI **NOTE: On `main` UI is using `SparseSet<Entity, T>`!** `many_buttons` <img width="1111" alt="Screenshot 2023-09-27 at 07 53 26" src="https://github.com/bevyengine/bevy/assets/302146/66afd56d-cbe4-49e7-8b64-2f28f6043d85"> +15.1% median frame time. ## Alternatives - Cart originally suggested trying out `SparseSet<Entity, T>` and indeed that is slightly faster under ideal conditions. However, `PassHashMap<Entity, T>` has better worst case performance when data is randomly distributed, rather than in sorted render order, and does not have the worst case memory usage that `SparseSet`'s dense `Vec<usize>` that maps from the `Entity` index to sparse index into `Vec<T>`. This dense `Vec` has to be as large as the largest Entity index used with the `SparseSet`. - I also tested `PassHashMap<u32, T>`, intending to use `Entity.index()` as the key, but this proved to sometimes be slower and mostly no different. - The only outstanding approach that has not been implemented and tested is to _not_ clear the render world of its entities each frame. That has its own problems, though they could perhaps be solved. - Performance-wise, if the entities and their component data were not cleared, then they would incur table moves on spawn, and should not thereafter, rather just their component data would be overwritten. Ideally we would have a neat way of either updating data in-place via `&mut T` queries, or inserting components if not present. This would likely be quite cumbersome to have to remember to do everywhere, but perhaps it only needs to be done in the more performance-sensitive systems. - The main problem to solve however is that we want to both maintain a mapping between main world entities and render world entities, be able to run the render app and world in parallel with the main app and world for pipelined rendering, and at the same time be able to spawn entities in the render world in such a way that those Entity ids do not collide with those spawned in the main world. This is potentially quite solvable, but could well be a lot of ECS work to do it in a way that makes sense. --- ## Changelog - Changed: Component data for entities to be drawn are no longer stored on entities in the render world. Instead, data is stored in a `EntityHashMap<Entity, T>` in various resources. This brings significant performance benefits due to the way the render app clears entities every frame. Resources of most interest are `RenderMeshInstances` and `RenderMaterialInstances`, and their 2D counterparts. ## Migration Guide Previously the render app extracted mesh entities and their component data from the main world and stored them as entities and components in the render world. Now they are extracted into essentially `EntityHashMap<Entity, T>` where `T` are structs containing an appropriate group of data. This means that while extract set systems will continue to run extract queries against the main world they will store their data in hash maps. Also, systems in later sets will either need to look up entities in the available resources such as `RenderMeshInstances`, or maintain their own `EntityHashMap<Entity, T>` for their own data. Before: ```rust fn queue_custom( material_meshes: Query<(Entity, &MeshTransforms, &Handle<Mesh>), With<InstanceMaterialData>>, ) { ... for (entity, mesh_transforms, mesh_handle) in &material_meshes { ... } } ``` After: ```rust fn queue_custom( render_mesh_instances: Res<RenderMeshInstances>, instance_entities: Query<Entity, With<InstanceMaterialData>>, ) { ... for entity in &instance_entities { let Some(mesh_instance) = render_mesh_instances.get(&entity) else { continue; }; // The mesh handle in `AssetId<Mesh>` form, and the `MeshTransforms` can now // be found in `mesh_instance` which is a `RenderMeshInstance` ... } } ``` --------- Co-authored-by: robtfm <50659922+robtfm@users.noreply.github.com> |
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Rob Parrett
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7063c86ed4
|
Fix some typos (#9934)
# Objective To celebrate the turning of the seasons, I took a small walk through the codebase guided by the "[code spell checker](https://marketplace.visualstudio.com/items?itemName=streetsidesoftware.code-spell-checker)" VS Code extension and fixed a few typos. |
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piper
|
bc88f33e48
|
Allow other plugins to create renderer resources (#9925)
This is a duplicate of #9632, it was created since I forgot to make a new branch when I first made this PR, so I was having trouble resolving merge conflicts, meaning I had to rebuild my PR. # Objective - Allow other plugins to create the renderer resources. An example of where this would be required is my [OpenXR plugin](https://github.com/awtterpip/bevy_openxr) ## Solution - Changed the bevy RenderPlugin to optionally take precreated render resources instead of a configuration. ## Migration Guide The `RenderPlugin` now takes a `RenderCreation` enum instead of `WgpuSettings`. `RenderSettings::default()` returns `RenderSettings::Automatic(WgpuSettings::default())`. `RenderSettings` also implements `From<WgpuSettings>`. ```rust // before RenderPlugin { wgpu_settings: WgpuSettings { ... }, } // now RenderPlugin { render_creation: RenderCreation::Automatic(WgpuSettings { ... }), } // or RenderPlugin { render_creation: WgpuSettings { ... }.into(), } ``` --------- Co-authored-by: Malek <pocmalek@gmail.com> Co-authored-by: Robert Swain <robert.swain@gmail.com> |
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Pixelstorm
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503b861e3a
|
Allow using async_io::block_on in bevy_tasks (#9626)
# Objective Fixes #9625 ## Solution Adds `async-io` as an optional dependency of `bevy_tasks`. When enabled, this causes calls to `futures_lite::future::block_on` to be replaced with calls to `async_io::block_on`. --- ## Changelog - Added a new `async-io` feature to `bevy_tasks`. When enabled, this causes `bevy_tasks` to use `async-io`'s implemention of `block_on` instead of `futures-lite`'s implementation. You should enable this if you use `async-io` in your application. |
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Robert Swain
|
5c884c5a15
|
Automatic batching/instancing of draw commands (#9685)
# Objective - Implement the foundations of automatic batching/instancing of draw commands as the next step from #89 - NOTE: More performance improvements will come when more data is managed and bound in ways that do not require rebinding such as mesh, material, and texture data. ## Solution - The core idea for batching of draw commands is to check whether any of the information that has to be passed when encoding a draw command changes between two things that are being drawn according to the sorted render phase order. These should be things like the pipeline, bind groups and their dynamic offsets, index/vertex buffers, and so on. - The following assumptions have been made: - Only entities with prepared assets (pipelines, materials, meshes) are queued to phases - View bindings are constant across a phase for a given draw function as phases are per-view - `batch_and_prepare_render_phase` is the only system that performs this batching and has sole responsibility for preparing the per-object data. As such the mesh binding and dynamic offsets are assumed to only vary as a result of the `batch_and_prepare_render_phase` system, e.g. due to having to split data across separate uniform bindings within the same buffer due to the maximum uniform buffer binding size. - Implement `GpuArrayBuffer` for `Mesh2dUniform` to store Mesh2dUniform in arrays in GPU buffers rather than each one being at a dynamic offset in a uniform buffer. This is the same optimisation that was made for 3D not long ago. - Change batch size for a range in `PhaseItem`, adding API for getting or mutating the range. This is more flexible than a size as the length of the range can be used in place of the size, but the start and end can be otherwise whatever is needed. - Add an optional mesh bind group dynamic offset to `PhaseItem`. This avoids having to do a massive table move just to insert `GpuArrayBufferIndex` components. ## Benchmarks All tests have been run on an M1 Max on AC power. `bevymark` and `many_cubes` were modified to use 1920x1080 with a scale factor of 1. I run a script that runs a separate Tracy capture process, and then runs the bevy example with `--features bevy_ci_testing,trace_tracy` and `CI_TESTING_CONFIG=../benchmark.ron` with the contents of `../benchmark.ron`: ```rust ( exit_after: Some(1500) ) ``` ...in order to run each test for 1500 frames. The recent changes to `many_cubes` and `bevymark` added reproducible random number generation so that with the same settings, the same rng will occur. They also added benchmark modes that use a fixed delta time for animations. Combined this means that the same frames should be rendered both on main and on the branch. The graphs compare main (yellow) to this PR (red). ### 3D Mesh `many_cubes --benchmark` <img width="1411" alt="Screenshot 2023-09-03 at 23 42 10" src="https://github.com/bevyengine/bevy/assets/302146/2088716a-c918-486c-8129-090b26fd2bc4"> The mesh and material are the same for all instances. This is basically the best case for the initial batching implementation as it results in 1 draw for the ~11.7k visible meshes. It gives a ~30% reduction in median frame time. The 1000th frame is identical using the flip tool:  ``` Mean: 0.000000 Weighted median: 0.000000 1st weighted quartile: 0.000000 3rd weighted quartile: 0.000000 Min: 0.000000 Max: 0.000000 Evaluation time: 0.4615 seconds ``` ### 3D Mesh `many_cubes --benchmark --material-texture-count 10` <img width="1404" alt="Screenshot 2023-09-03 at 23 45 18" src="https://github.com/bevyengine/bevy/assets/302146/5ee9c447-5bd2-45c6-9706-ac5ff8916daf"> This run uses 10 different materials by varying their textures. The materials are randomly selected, and there is no sorting by material bind group for opaque 3D so any batching is 'random'. The PR produces a ~5% reduction in median frame time. If we were to sort the opaque phase by the material bind group, then this should be a lot faster. This produces about 10.5k draws for the 11.7k visible entities. This makes sense as randomly selecting from 10 materials gives a chance that two adjacent entities randomly select the same material and can be batched. The 1000th frame is identical in flip:  ``` Mean: 0.000000 Weighted median: 0.000000 1st weighted quartile: 0.000000 3rd weighted quartile: 0.000000 Min: 0.000000 Max: 0.000000 Evaluation time: 0.4537 seconds ``` ### 3D Mesh `many_cubes --benchmark --vary-per-instance` <img width="1394" alt="Screenshot 2023-09-03 at 23 48 44" src="https://github.com/bevyengine/bevy/assets/302146/f02a816b-a444-4c18-a96a-63b5436f3b7f"> This run varies the material data per instance by randomly-generating its colour. This is the worst case for batching and that it performs about the same as `main` is a good thing as it demonstrates that the batching has minimal overhead when dealing with ~11k visible mesh entities. The 1000th frame is identical according to flip:  ``` Mean: 0.000000 Weighted median: 0.000000 1st weighted quartile: 0.000000 3rd weighted quartile: 0.000000 Min: 0.000000 Max: 0.000000 Evaluation time: 0.4568 seconds ``` ### 2D Mesh `bevymark --benchmark --waves 160 --per-wave 1000 --mode mesh2d` <img width="1412" alt="Screenshot 2023-09-03 at 23 59 56" src="https://github.com/bevyengine/bevy/assets/302146/cb02ae07-237b-4646-ae9f-fda4dafcbad4"> This spawns 160 waves of 1000 quad meshes that are shaded with ColorMaterial. Each wave has a different material so 160 waves currently should result in 160 batches. This results in a 50% reduction in median frame time. Capturing a screenshot of the 1000th frame main vs PR gives:  ``` Mean: 0.001222 Weighted median: 0.750432 1st weighted quartile: 0.453494 3rd weighted quartile: 0.969758 Min: 0.000000 Max: 0.990296 Evaluation time: 0.4255 seconds ``` So they seem to produce the same results. I also double-checked the number of draws. `main` does 160000 draws, and the PR does 160, as expected. ### 2D Mesh `bevymark --benchmark --waves 160 --per-wave 1000 --mode mesh2d --material-texture-count 10` <img width="1392" alt="Screenshot 2023-09-04 at 00 09 22" src="https://github.com/bevyengine/bevy/assets/302146/4358da2e-ce32-4134-82df-3ab74c40849c"> This generates 10 textures and generates materials for each of those and then selects one material per wave. The median frame time is reduced by 50%. Similar to the plain run above, this produces 160 draws on the PR and 160000 on `main` and the 1000th frame is identical (ignoring the fps counter text overlay).  ``` Mean: 0.002877 Weighted median: 0.964980 1st weighted quartile: 0.668871 3rd weighted quartile: 0.982749 Min: 0.000000 Max: 0.992377 Evaluation time: 0.4301 seconds ``` ### 2D Mesh `bevymark --benchmark --waves 160 --per-wave 1000 --mode mesh2d --vary-per-instance` <img width="1396" alt="Screenshot 2023-09-04 at 00 13 53" src="https://github.com/bevyengine/bevy/assets/302146/b2198b18-3439-47ad-919a-cdabe190facb"> This creates unique materials per instance by randomly-generating the material's colour. This is the worst case for 2D batching. Somehow, this PR manages a 7% reduction in median frame time. Both main and this PR issue 160000 draws. The 1000th frame is the same:  ``` Mean: 0.001214 Weighted median: 0.937499 1st weighted quartile: 0.635467 3rd weighted quartile: 0.979085 Min: 0.000000 Max: 0.988971 Evaluation time: 0.4462 seconds ``` ### 2D Sprite `bevymark --benchmark --waves 160 --per-wave 1000 --mode sprite` <img width="1396" alt="Screenshot 2023-09-04 at 12 21 12" src="https://github.com/bevyengine/bevy/assets/302146/8b31e915-d6be-4cac-abf5-c6a4da9c3d43"> This just spawns 160 waves of 1000 sprites. There should be and is no notable difference between main and the PR. ### 2D Sprite `bevymark --benchmark --waves 160 --per-wave 1000 --mode sprite --material-texture-count 10` <img width="1389" alt="Screenshot 2023-09-04 at 12 36 08" src="https://github.com/bevyengine/bevy/assets/302146/45fe8d6d-c901-4062-a349-3693dd044413"> This spawns the sprites selecting a texture at random per instance from the 10 generated textures. This has no significant change vs main and shouldn't. ### 2D Sprite `bevymark --benchmark --waves 160 --per-wave 1000 --mode sprite --vary-per-instance` <img width="1401" alt="Screenshot 2023-09-04 at 12 29 52" src="https://github.com/bevyengine/bevy/assets/302146/762c5c60-352e-471f-8dbe-bbf10e24ebd6"> This sets the sprite colour as being unique per instance. This can still all be drawn using one batch. There should be no difference but the PR produces median frame times that are 4% higher. Investigation showed no clear sources of cost, rather a mix of give and take that should not happen. It seems like noise in the results. ### Summary | Benchmark | % change in median frame time | | ------------- | ------------- | | many_cubes | 🟩 -30% | | many_cubes 10 materials | 🟩 -5% | | many_cubes unique materials | 🟩 ~0% | | bevymark mesh2d | 🟩 -50% | | bevymark mesh2d 10 materials | 🟩 -50% | | bevymark mesh2d unique materials | 🟩 -7% | | bevymark sprite | 🟥 2% | | bevymark sprite 10 materials | 🟥 0.6% | | bevymark sprite unique materials | 🟥 4.1% | --- ## Changelog - Added: 2D and 3D mesh entities that share the same mesh and material (same textures, same data) are now batched into the same draw command for better performance. --------- Co-authored-by: robtfm <50659922+robtfm@users.noreply.github.com> Co-authored-by: Nicola Papale <nico@nicopap.ch> |
||
|
Rob Parrett
|
bdb063497d
|
Use radsort for Transparent2d PhaseItem sorting (#9882)
# Objective Fix a performance regression in the "[bevy vs pixi](https://github.com/SUPERCILEX/bevy-vs-pixi)" benchmark. This benchmark seems to have a slightly pathological distribution of `z` values -- Sprites are spawned with a random `z` value with a child sprite at `f32::EPSILON` relative to the parent. See discussion here: https://github.com/bevyengine/bevy/issues/8100#issuecomment-1726978633 ## Solution Use `radsort` for sorting `Transparent2d` `PhaseItem`s. Use random `z` values in bevymark to stress the phase sort. Add an `--ordered-z` option to `bevymark` that uses the old behavior. ## Benchmarks mac m1 max | benchmark | fps before | fps after | diff | | - | - | - | - | | bevymark --waves 120 --per-wave 1000 --random-z | 42.16 | 47.06 | 🟩 +11.6% | | bevymark --waves 120 --per-wave 1000 | 52.50 | 52.29 | 🟥 -0.4% | | bevymark --waves 120 --per-wave 1000 --mode mesh2d --random-z | 9.64 | 10.24 | 🟩 +6.2% | | bevymark --waves 120 --per-wave 1000 --mode mesh2d | 15.83 | 15.59 | 🟥 -1.5% | | bevy-vs-pixi | 39.71 | 59.88 | 🟩 +50.1% | ## Discussion It's possible that `TransparentUi` should also change. We could probably use `slice::sort_unstable_by_key` with the current sort key though, as its items are always sorted and unique. I'd prefer to follow up later to look into that. Here's a survey of sorts used by other `PhaseItem`s #### slice::sort_by_key `Transparent2d`, `TransparentUi` #### radsort `Opaque3d`, `AlphaMask3d`, `Transparent3d`, `Opaque3dPrepass`, `AlphaMask3dPrepass`, `Shadow` I also tried `slice::sort_unstable_by_key` with a compound sort key including `Entity`, but it didn't seem as promising and I didn't test it as thoroughly. --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Robert Swain <robert.swain@gmail.com> |
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|
Nicola Papale
|
7163aabf29
|
Use a single line for of large binding lists (#9849)
# Objective - When adding/removing bindings in large binding lists, git would generate very difficult-to-read diffs ## Solution - Move the `@group(X) @binding(Y)` into the same line as the binding type declaration |
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|
Trashtalk217
|
e4b368721d
|
One Shot Systems (#8963)
I'm adopting this ~~child~~ PR. # Objective - Working with exclusive world access is not always easy: in many cases, a standard system or three is more ergonomic to write, and more modularly maintainable. - For small, one-off tasks (commonly handled with scripting), running an event-reader system incurs a small but flat overhead cost and muddies the schedule. - Certain forms of logic (e.g. turn-based games) want very fine-grained linear and/or branching control over logic. - SystemState is not automatically cached, and so performance can suffer and change detection breaks. - Fixes https://github.com/bevyengine/bevy/issues/2192. - Partial workaround for https://github.com/bevyengine/bevy/issues/279. ## Solution - Adds a SystemRegistry resource to the World, which stores initialized systems keyed by their SystemSet. - Allows users to call world.run_system(my_system) and commands.run_system(my_system), without re-initializing or losing state (essential for change detection). - Add a Callback type to enable convenient use of dynamic one shot systems and reduce the mental overhead of working with Box<dyn SystemSet>. - Allow users to run systems based on their SystemSet, enabling more complex user-made abstractions. ## Future work - Parameterized one-shot systems would improve reusability and bring them closer to events and commands. The API could be something like run_system_with_input(my_system, my_input) and use the In SystemParam. - We should evaluate the unification of commands and one-shot systems since they are two different ways to run logic on demand over a World. ### Prior attempts - https://github.com/bevyengine/bevy/pull/2234 - https://github.com/bevyengine/bevy/pull/2417 - https://github.com/bevyengine/bevy/pull/4090 - https://github.com/bevyengine/bevy/pull/7999 This PR continues the work done in https://github.com/bevyengine/bevy/pull/7999. --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Federico Rinaldi <gisquerin@gmail.com> Co-authored-by: MinerSebas <66798382+MinerSebas@users.noreply.github.com> Co-authored-by: Aevyrie <aevyrie@gmail.com> Co-authored-by: Alejandro Pascual Pozo <alejandro.pascual.pozo@gmail.com> Co-authored-by: Rob Parrett <robparrett@gmail.com> Co-authored-by: François <mockersf@gmail.com> Co-authored-by: Dmytro Banin <banind@cs.washington.edu> Co-authored-by: James Liu <contact@jamessliu.com> |
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|
Nico Burns
|
b995827013
|
Have a separate implicit viewport node per root node + make viewport node Display::Grid (#9637)
# Objective Make `bevy_ui` "root" nodes more intuitive to use/style by: - Removing the implicit flexbox styling (such as stretch alignment) that is applied to them, and replacing it with more intuitive CSS Grid styling (notably with stretch alignment disabled in both axes). - Making root nodes layout independently of each other. Instead of there being a single implicit "viewport" node that all root nodes are children of, there is now an implicit "viewport" node *per root node*. And layout of each tree is computed separately. ## Solution - Remove the global implicit viewport node, and instead create an implicit viewport node for each user-specified root node. - Keep track of both the user-specified root nodes and the implicit viewport nodes in a separate `Vec`. - Use the window's size as the `available_space` parameter to `Taffy.compute_layout` rather than setting it on the implicit viewport node (and set the viewport to `height: 100%; width: 100%` to make this "just work"). --- ## Changelog - Bevy UI now lays out root nodes independently of each other in separate layout contexts. - The implicit viewport node (which contains each user-specified root node) is now `Display::Grid` with `align_items` and `justify_items` both set to `Start`. ## Migration Guide - Bevy UI now lays out root nodes independently of each other in separate layout contexts. If you were relying on your root nodes being able to affect each other's layouts, then you may need to wrap them in a single root node. - The implicit viewport node (which contains each user-specified root node) is now `Display::Grid` with `align_items` and `justify_items` both set to `Start`. You may need to add `height: Val::Percent(100.)` to your root nodes if you were previously relying on being implicitly set. |
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|
Rob Parrett
|
73e06e33da
|
Use a seeded rng for custom_skinned_mesh example (#9846)
# Objective Make the output of this example repeatable so it can be utilized by automated screenshot diffing. ## Solution - Use a seeded RNG for the random colors - Offset the meshes slightly in z so they don't intersect each other at the extents of their animations. |
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|
Rob Parrett
|
d3f612c376
|
Fix ambiguities in transform example (#9845)
# Objective
Fix these
```
-- rotate_cube and move_cube
conflict on: ["bevy_transform::components::transform::Transform", "transform::CubeState"]
-- rotate_cube and scale_down_sphere_proportional_to_cube_travel_distance
conflict on: ["bevy_transform::components::transform::Transform", "transform::CubeState"]
-- move_cube and scale_down_sphere_proportional_to_cube_travel_distance
conflict on: ["bevy_transform::components::transform::Transform", "transform::CubeState"]
```
The three systems in this example depend on the results of the others.
This leads to minor but detectable differences in output between runs by
automated screenshot diffing depending on the order of the schedule.
We don't necessarily need to be able to do this for **every** example,
but I think this is a case where fixing it is easy / maybe the right
thing to do anyway.
## Solution
Chain the three systems
|
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|
Rob Parrett
|
26359f9b37
|
Remove some old references to CoreSet (#9833)
# Objective Remove some references to `CoreSet` which was removed in #8079. |
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|
louis-le-cam
|
9ee9d627d7
|
Rename RemovedComponents::iter/iter_with_id to read/read_with_id (#9778)
# Objective Rename RemovedComponents::iter/iter_with_id to read/read_with_id to make it clear that it consume the data Fixes #9755. (It's my first pull request, if i've made any mistake, please let me know) ## Solution Refactor RemovedComponents::iter/iter_with_id to read/read_with_id ## Changelog Refactor RemovedComponents::iter/iter_with_id to read/read_with_id Deprecate RemovedComponents::iter/iter_with_id Remove IntoIterator implementation Update removal_detection example accordingly --- ## Migration Guide Rename calls of RemovedComponents::iter/iter_with_id to read/read_with_id Replace IntoIterator iteration (&mut <RemovedComponents>) with .read() --------- Co-authored-by: denshi_ika <mojang2824@gmail.com> |
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|
Rob Parrett
|
8681d1cb04
|
Fix animate_scale scaling z value in text2d example (#9769)
# Objective I noticed this while testing #9733. It's not causing any problems, but we shouldn't teach users to scale 2d stuff in z. ## Solution Only scale in x and y. |
||
|
Bruce Mitchener
|
5eb6889832
|
examples: Remove unused doc comments. (#9795)
# Objective - Compile all targets without warnings about unused doc comments. ## Solution - Turn unused doc comments into regular comments. Doc comments aren't supported on expressions, so they can just be regular comments. |
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|
A-Walrus
|
1a7fc57a8c
|
Fix comment in scene example FromResources (#9743)
Comment references non existent `FromResources` instead of `FromWorld` --------- 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> |
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|
IceSentry
|
027ff9f378
|
Wait before making window visible (#9692)
# Objective - The current example still has one white frame before it starts rendering. ## Solution - Wait 3 frames before toggling visibility |
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|
ickshonpe
|
625d386940
|
impl From<String> and From<&str> for TextSection (#8856)
# Objective
Implement `From<String>` and `From<&str>` for `TextSection`
Example from something I was working on earlier:
```rust
parent.spawn(TextBundle::from_sections([
TextSection::new("press ".to_string(), TextStyle::default()),
TextSection::new("space".to_string(), TextStyle { color: Color::YELLOW, ..default() }),
TextSection::new(" to advance frames".to_string(), TextStyle::default()),
]));
```
After an `impl From<&str> for TextSection` :
```rust
parent.spawn(TextBundle::from_sections([
"press ".into(),
TextSection::new("space".to_string(), TextStyle { color: Color::YELLOW, ..default() }),
" to advance frames".into(),
]));
```
* Potentially unhelpful without a default font, so behind the
`default_font` feature.
Co-authored-by: [hate](https://github.com/hate)
---------
Co-authored-by: hate <15314665+hate@users.noreply.github.com>
|
||
|
ira
|
f3ab38a802
|
Add example for Camera::viewport_to_world (#7179)
Fixes #7177 --------- Co-authored-by: Rob Parrett <robparrett@gmail.com> |
||
|
Carter Anderson
|
17edf4f7c7
|
Copy on Write AssetPaths (#9729)
# Objective The `AssetServer` and `AssetProcessor` do a lot of `AssetPath` cloning (across many threads). To store the path on the handle, to store paths in dependency lists, to pass an owned path to the offloaded thread, to pass a path to the LoadContext, etc , etc. Cloning multiple string allocations multiple times like this will add up. It is worth optimizing this. Referenced in #9714 ## Solution Added a new `CowArc<T>` type to `bevy_util`, which behaves a lot like `Cow<T>`, but the Owned variant is an `Arc<T>`. Use this in place of `Cow<str>` and `Cow<Path>` on `AssetPath`. --- ## Changelog - `AssetPath` now internally uses `CowArc`, making clone operations much cheaper - `AssetPath` now serializes as `AssetPath("some_path.extension#Label")` instead of as `AssetPath { path: "some_path.extension", label: Some("Label) }` ## Migration Guide ```rust // Old AssetPath::new("logo.png", None); // New AssetPath::new("logo.png"); // Old AssetPath::new("scene.gltf", Some("Mesh0"); // New AssetPath::new("scene.gltf").with_label("Mesh0"); ``` `AssetPath` now serializes as `AssetPath("some_path.extension#Label")` instead of as `AssetPath { path: "some_path.extension", label: Some("Label) }` --------- Co-authored-by: Pascal Hertleif <killercup@gmail.com> |
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|
Joseph
|
8eb6ccdd87
|
Remove useless single tuples and trailing commas (#9720)
# Objective Title |
||
|
ickshonpe
|
73447b6d72
|
many_buttons enhancements (#9712)
# Objective `many_buttons` enhancements: * use `argh` to manage the commandline arguments like the other stress tests * add an option to set the number of buttons * add a grid layout option * centre the grid properly * use viewport coords for the layout's style constraints * replace use of absolute positioning includes the changes from #9636 Displaying an image isn't actually about stress testing image rendering. Without a second texture (the first is used by the text) the entire grid will be drawn in a single batch. The extra texture used by the image forces the renderer to break up the batches at every button displaying an image, where it has to switch between the font atlas texture and the image texture. ## Solution <img width="401" alt="many_buttons_new" src="https://github.com/bevyengine/bevy/assets/27962798/82140c6d-d72c-4e4f-b9b6-dd204176e51d"> --- ## Changelog `many_buttons` stress test example enhancements: * uses `argh` to the manage the commandline arguments. * New commandline args: - `--help` display info & list all commandline options - `--buttons` set the number of buttons. - `--image-freq` set the frequency of buttons displaying images - `--grid` use a grid layout * style constraints are specified in viewport coords insead of percentage values * margins and nested bundles are used to construct the layout, instead of absolute positioning * the button grid centered in the window, the empty gap along the bottom and right is removed * an image is drawn as the background to every Nth button where N is set using the `--image-freq` commandline option. --------- Co-authored-by: Rob Parrett <robparrett@gmail.com> |
||
|
Carter Anderson
|
5eb292dc10
|
Bevy Asset V2 (#8624)
# Bevy Asset V2 Proposal ## Why Does Bevy Need A New Asset System? Asset pipelines are a central part of the gamedev process. Bevy's current asset system is missing a number of features that make it non-viable for many classes of gamedev. After plenty of discussions and [a long community feedback period](https://github.com/bevyengine/bevy/discussions/3972), we've identified a number missing features: * **Asset Preprocessing**: it should be possible to "preprocess" / "compile" / "crunch" assets at "development time" rather than when the game starts up. This enables offloading expensive work from deployed apps, faster asset loading, less runtime memory usage, etc. * **Per-Asset Loader Settings**: Individual assets cannot define their own loaders that override the defaults. Additionally, they cannot provide per-asset settings to their loaders. This is a huge limitation, as many asset types don't provide all information necessary for Bevy _inside_ the asset. For example, a raw PNG image says nothing about how it should be sampled (ex: linear vs nearest). * **Asset `.meta` files**: assets should have configuration files stored adjacent to the asset in question, which allows the user to configure asset-type-specific settings. These settings should be accessible during the pre-processing phase. Modifying a `.meta` file should trigger a re-processing / re-load of the asset. It should be possible to configure asset loaders from the meta file. * **Processed Asset Hot Reloading**: Changes to processed assets (or their dependencies) should result in re-processing them and re-loading the results in live Bevy Apps. * **Asset Dependency Tracking**: The current bevy_asset has no good way to wait for asset dependencies to load. It punts this as an exercise for consumers of the loader apis, which is unreasonable and error prone. There should be easy, ergonomic ways to wait for assets to load and block some logic on an asset's entire dependency tree loading. * **Runtime Asset Loading**: it should be (optionally) possible to load arbitrary assets dynamically at runtime. This necessitates being able to deploy and run the asset server alongside Bevy Apps on _all platforms_. For example, we should be able to invoke the shader compiler at runtime, stream scenes from sources like the internet, etc. To keep deployed binaries (and startup times) small, the runtime asset server configuration should be configurable with different settings compared to the "pre processor asset server". * **Multiple Backends**: It should be possible to load assets from arbitrary sources (filesystems, the internet, remote asset serves, etc). * **Asset Packing**: It should be possible to deploy assets in compressed "packs", which makes it easier and more efficient to distribute assets with Bevy Apps. * **Asset Handoff**: It should be possible to hold a "live" asset handle, which correlates to runtime data, without actually holding the asset in memory. Ex: it must be possible to hold a reference to a GPU mesh generated from a "mesh asset" without keeping the mesh data in CPU memory * **Per-Platform Processed Assets**: Different platforms and app distributions have different capabilities and requirements. Some platforms need lower asset resolutions or different asset formats to operate within the hardware constraints of the platform. It should be possible to define per-platform asset processing profiles. And it should be possible to deploy only the assets required for a given platform. These features have architectural implications that are significant enough to require a full rewrite. The current Bevy Asset implementation got us this far, but it can take us no farther. This PR defines a brand new asset system that implements most of these features, while laying the foundations for the remaining features to be built. ## Bevy Asset V2 Here is a quick overview of the features introduced in this PR. * **Asset Preprocessing**: Preprocess assets at development time into more efficient (and configurable) representations * **Dependency Aware**: Dependencies required to process an asset are tracked. If an asset's processed dependency changes, it will be reprocessed * **Hot Reprocessing/Reloading**: detect changes to asset source files, reprocess them if they have changed, and then hot-reload them in Bevy Apps. * **Only Process Changes**: Assets are only re-processed when their source file (or meta file) has changed. This uses hashing and timestamps to avoid processing assets that haven't changed. * **Transactional and Reliable**: Uses write-ahead logging (a technique commonly used by databases) to recover from crashes / forced-exits. Whenever possible it avoids full-reprocessing / only uncompleted transactions will be reprocessed. When the processor is running in parallel with a Bevy App, processor asset writes block Bevy App asset reads. Reading metadata + asset bytes is guaranteed to be transactional / correctly paired. * **Portable / Run anywhere / Database-free**: The processor does not rely on an in-memory database (although it uses some database techniques for reliability). This is important because pretty much all in-memory databases have unsupported platforms or build complications. * **Configure Processor Defaults Per File Type**: You can say "use this processor for all files of this type". * **Custom Processors**: The `Processor` trait is flexible and unopinionated. It can be implemented by downstream plugins. * **LoadAndSave Processors**: Most asset processing scenarios can be expressed as "run AssetLoader A, save the results using AssetSaver X, and then load the result using AssetLoader B". For example, load this png image using `PngImageLoader`, which produces an `Image` asset and then save it using `CompressedImageSaver` (which also produces an `Image` asset, but in a compressed format), which takes an `Image` asset as input. This means if you have an `AssetLoader` for an asset, you are already half way there! It also means that you can share AssetSavers across multiple loaders. Because `CompressedImageSaver` accepts Bevy's generic Image asset as input, it means you can also use it with some future `JpegImageLoader`. * **Loader and Saver Settings**: Asset Loaders and Savers can now define their own settings types, which are passed in as input when an asset is loaded / saved. Each asset can define its own settings. * **Asset `.meta` files**: configure asset loaders, their settings, enable/disable processing, and configure processor settings * **Runtime Asset Dependency Tracking** Runtime asset dependencies (ex: if an asset contains a `Handle<Image>`) are tracked by the asset server. An event is emitted when an asset and all of its dependencies have been loaded * **Unprocessed Asset Loading**: Assets do not require preprocessing. They can be loaded directly. A processed asset is just a "normal" asset with some extra metadata. Asset Loaders don't need to know or care about whether or not an asset was processed. * **Async Asset IO**: Asset readers/writers use async non-blocking interfaces. Note that because Rust doesn't yet support async traits, there is a bit of manual Boxing / Future boilerplate. This will hopefully be removed in the near future when Rust gets async traits. * **Pluggable Asset Readers and Writers**: Arbitrary asset source readers/writers are supported, both by the processor and the asset server. * **Better Asset Handles** * **Single Arc Tree**: Asset Handles now use a single arc tree that represents the lifetime of the asset. This makes their implementation simpler, more efficient, and allows us to cheaply attach metadata to handles. Ex: the AssetPath of a handle is now directly accessible on the handle itself! * **Const Typed Handles**: typed handles can be constructed in a const context. No more weird "const untyped converted to typed at runtime" patterns! * **Handles and Ids are Smaller / Faster To Hash / Compare**: Typed `Handle<T>` is now much smaller in memory and `AssetId<T>` is even smaller. * **Weak Handle Usage Reduction**: In general Handles are now considered to be "strong". Bevy features that previously used "weak `Handle<T>`" have been ported to `AssetId<T>`, which makes it statically clear that the features do not hold strong handles (while retaining strong type information). Currently Handle::Weak still exists, but it is very possible that we can remove that entirely. * **Efficient / Dense Asset Ids**: Assets now have efficient dense runtime asset ids, which means we can avoid expensive hash lookups. Assets are stored in Vecs instead of HashMaps. There are now typed and untyped ids, which means we no longer need to store dynamic type information in the ID for typed handles. "AssetPathId" (which was a nightmare from a performance and correctness standpoint) has been entirely removed in favor of dense ids (which are retrieved for a path on load) * **Direct Asset Loading, with Dependency Tracking**: Assets that are defined at runtime can still have their dependencies tracked by the Asset Server (ex: if you create a material at runtime, you can still wait for its textures to load). This is accomplished via the (currently optional) "asset dependency visitor" trait. This system can also be used to define a set of assets to load, then wait for those assets to load. * **Async folder loading**: Folder loading also uses this system and immediately returns a handle to the LoadedFolder asset, which means folder loading no longer blocks on directory traversals. * **Improved Loader Interface**: Loaders now have a specific "top level asset type", which makes returning the top-level asset simpler and statically typed. * **Basic Image Settings and Processing**: Image assets can now be processed into the gpu-friendly Basic Universal format. The ImageLoader now has a setting to define what format the image should be loaded as. Note that this is just a minimal MVP ... plenty of additional work to do here. To demo this, enable the `basis-universal` feature and turn on asset processing. * **Simpler Audio Play / AudioSink API**: Asset handle providers are cloneable, which means the Audio resource can mint its own handles. This means you can now do `let sink_handle = audio.play(music)` instead of `let sink_handle = audio_sinks.get_handle(audio.play(music))`. Note that this might still be replaced by https://github.com/bevyengine/bevy/pull/8424. **Removed Handle Casting From Engine Features**: Ex: FontAtlases no longer use casting between handle types ## Using The New Asset System ### Normal Unprocessed Asset Loading By default the `AssetPlugin` does not use processing. It behaves pretty much the same way as the old system. If you are defining a custom asset, first derive `Asset`: ```rust #[derive(Asset)] struct Thing { value: String, } ``` Initialize the asset: ```rust app.init_asset:<Thing>() ``` Implement a new `AssetLoader` for it: ```rust #[derive(Default)] struct ThingLoader; #[derive(Serialize, Deserialize, Default)] pub struct ThingSettings { some_setting: bool, } impl AssetLoader for ThingLoader { type Asset = Thing; type Settings = ThingSettings; fn load<'a>( &'a self, reader: &'a mut Reader, settings: &'a ThingSettings, load_context: &'a mut LoadContext, ) -> BoxedFuture<'a, Result<Thing, anyhow::Error>> { Box::pin(async move { let mut bytes = Vec::new(); reader.read_to_end(&mut bytes).await?; // convert bytes to value somehow Ok(Thing { value }) }) } fn extensions(&self) -> &[&str] { &["thing"] } } ``` Note that this interface will get much cleaner once Rust gets support for async traits. `Reader` is an async futures_io::AsyncRead. You can stream bytes as they come in or read them all into a `Vec<u8>`, depending on the context. You can use `let handle = load_context.load(path)` to kick off a dependency load, retrieve a handle, and register the dependency for the asset. Then just register the loader in your Bevy app: ```rust app.init_asset_loader::<ThingLoader>() ``` Now just add your `Thing` asset files into the `assets` folder and load them like this: ```rust fn system(asset_server: Res<AssetServer>) { let handle = Handle<Thing> = asset_server.load("cool.thing"); } ``` You can check load states directly via the asset server: ```rust if asset_server.load_state(&handle) == LoadState::Loaded { } ``` You can also listen for events: ```rust fn system(mut events: EventReader<AssetEvent<Thing>>, handle: Res<SomeThingHandle>) { for event in events.iter() { if event.is_loaded_with_dependencies(&handle) { } } } ``` Note the new `AssetEvent::LoadedWithDependencies`, which only fires when the asset is loaded _and_ all dependencies (and their dependencies) have loaded. Unlike the old asset system, for a given asset path all `Handle<T>` values point to the same underlying Arc. This means Handles can cheaply hold more asset information, such as the AssetPath: ```rust // prints the AssetPath of the handle info!("{:?}", handle.path()) ``` ### Processed Assets Asset processing can be enabled via the `AssetPlugin`. When developing Bevy Apps with processed assets, do this: ```rust app.add_plugins(DefaultPlugins.set(AssetPlugin::processed_dev())) ``` This runs the `AssetProcessor` in the background with hot-reloading. It reads assets from the `assets` folder, processes them, and writes them to the `.imported_assets` folder. Asset loads in the Bevy App will wait for a processed version of the asset to become available. If an asset in the `assets` folder changes, it will be reprocessed and hot-reloaded in the Bevy App. When deploying processed Bevy apps, do this: ```rust app.add_plugins(DefaultPlugins.set(AssetPlugin::processed())) ``` This does not run the `AssetProcessor` in the background. It behaves like `AssetPlugin::unprocessed()`, but reads assets from `.imported_assets`. When the `AssetProcessor` is running, it will populate sibling `.meta` files for assets in the `assets` folder. Meta files for assets that do not have a processor configured look like this: ```rust ( meta_format_version: "1.0", asset: Load( loader: "bevy_render::texture::image_loader::ImageLoader", settings: ( format: FromExtension, ), ), ) ``` This is metadata for an image asset. For example, if you have `assets/my_sprite.png`, this could be the metadata stored at `assets/my_sprite.png.meta`. Meta files are totally optional. If no metadata exists, the default settings will be used. In short, this file says "load this asset with the ImageLoader and use the file extension to determine the image type". This type of meta file is supported in all AssetPlugin modes. If in `Unprocessed` mode, the asset (with the meta settings) will be loaded directly. If in `ProcessedDev` mode, the asset file will be copied directly to the `.imported_assets` folder. The meta will also be copied directly to the `.imported_assets` folder, but with one addition: ```rust ( meta_format_version: "1.0", processed_info: Some(( hash: 12415480888597742505, full_hash: 14344495437905856884, process_dependencies: [], )), asset: Load( loader: "bevy_render::texture::image_loader::ImageLoader", settings: ( format: FromExtension, ), ), ) ``` `processed_info` contains `hash` (a direct hash of the asset and meta bytes), `full_hash` (a hash of `hash` and the hashes of all `process_dependencies`), and `process_dependencies` (the `path` and `full_hash` of every process_dependency). A "process dependency" is an asset dependency that is _directly_ used when processing the asset. Images do not have process dependencies, so this is empty. When the processor is enabled, you can use the `Process` metadata config: ```rust ( meta_format_version: "1.0", asset: Process( processor: "bevy_asset::processor::process::LoadAndSave<bevy_render::texture::image_loader::ImageLoader, bevy_render::texture::compressed_image_saver::CompressedImageSaver>", settings: ( loader_settings: ( format: FromExtension, ), saver_settings: ( generate_mipmaps: true, ), ), ), ) ``` This configures the asset to use the `LoadAndSave` processor, which runs an AssetLoader and feeds the result into an AssetSaver (which saves the given Asset and defines a loader to load it with). (for terseness LoadAndSave will likely get a shorter/friendlier type name when [Stable Type Paths](#7184) lands). `LoadAndSave` is likely to be the most common processor type, but arbitrary processors are supported. `CompressedImageSaver` saves an `Image` in the Basis Universal format and configures the ImageLoader to load it as basis universal. The `AssetProcessor` will read this meta, run it through the LoadAndSave processor, and write the basis-universal version of the image to `.imported_assets`. The final metadata will look like this: ```rust ( meta_format_version: "1.0", processed_info: Some(( hash: 905599590923828066, full_hash: 9948823010183819117, process_dependencies: [], )), asset: Load( loader: "bevy_render::texture::image_loader::ImageLoader", settings: ( format: Format(Basis), ), ), ) ``` To try basis-universal processing out in Bevy examples, (for example `sprite.rs`), change `add_plugins(DefaultPlugins)` to `add_plugins(DefaultPlugins.set(AssetPlugin::processed_dev()))` and run with the `basis-universal` feature enabled: `cargo run --features=basis-universal --example sprite`. To create a custom processor, there are two main paths: 1. Use the `LoadAndSave` processor with an existing `AssetLoader`. Implement the `AssetSaver` trait, register the processor using `asset_processor.register_processor::<LoadAndSave<ImageLoader, CompressedImageSaver>>(image_saver.into())`. 2. Implement the `Process` trait directly and register it using: `asset_processor.register_processor(thing_processor)`. You can configure default processors for file extensions like this: ```rust asset_processor.set_default_processor::<ThingProcessor>("thing") ``` There is one more metadata type to be aware of: ```rust ( meta_format_version: "1.0", asset: Ignore, ) ``` This will ignore the asset during processing / prevent it from being written to `.imported_assets`. The AssetProcessor stores a transaction log at `.imported_assets/log` and uses it to gracefully recover from unexpected stops. This means you can force-quit the processor (and Bevy Apps running the processor in parallel) at arbitrary times! `.imported_assets` is "local state". It should _not_ be checked into source control. It should also be considered "read only". In practice, you _can_ modify processed assets and processed metadata if you really need to test something. But those modifications will not be represented in the hashes of the assets, so the processed state will be "out of sync" with the source assets. The processor _will not_ fix this for you. Either revert the change after you have tested it, or delete the processed files so they can be re-populated. ## Open Questions There are a number of open questions to be discussed. We should decide if they need to be addressed in this PR and if so, how we will address them: ### Implied Dependencies vs Dependency Enumeration There are currently two ways to populate asset dependencies: * **Implied via AssetLoaders**: if an AssetLoader loads an asset (and retrieves a handle), a dependency is added to the list. * **Explicit via the optional Asset::visit_dependencies**: if `server.load_asset(my_asset)` is called, it will call `my_asset.visit_dependencies`, which will grab dependencies that have been manually defined for the asset via the Asset trait impl (which can be derived). This means that defining explicit dependencies is optional for "loaded assets". And the list of dependencies is always accurate because loaders can only produce Handles if they register dependencies. If an asset was loaded with an AssetLoader, it only uses the implied dependencies. If an asset was created at runtime and added with `asset_server.load_asset(MyAsset)`, it will use `Asset::visit_dependencies`. However this can create a behavior mismatch between loaded assets and equivalent "created at runtime" assets if `Assets::visit_dependencies` doesn't exactly match the dependencies produced by the AssetLoader. This behavior mismatch can be resolved by completely removing "implied loader dependencies" and requiring `Asset::visit_dependencies` to supply dependency data. But this creates two problems: * It makes defining loaded assets harder and more error prone: Devs must remember to manually annotate asset dependencies with `#[dependency]` when deriving `Asset`. For more complicated assets (such as scenes), the derive likely wouldn't be sufficient and a manual `visit_dependencies` impl would be required. * Removes the ability to immediately kick off dependency loads: When AssetLoaders retrieve a Handle, they also immediately kick off an asset load for the handle, which means it can start loading in parallel _before_ the asset finishes loading. For large assets, this could be significant. (although this could be mitigated for processed assets if we store dependencies in the processed meta file and load them ahead of time) ### Eager ProcessorDev Asset Loading I made a controversial call in the interest of fast startup times ("time to first pixel") for the "processor dev mode configuration". When initializing the AssetProcessor, current processed versions of unchanged assets are yielded immediately, even if their dependencies haven't been checked yet for reprocessing. This means that non-current-state-of-filesystem-but-previously-valid assets might be returned to the App first, then hot-reloaded if/when their dependencies change and the asset is reprocessed. Is this behavior desirable? There is largely one alternative: do not yield an asset from the processor to the app until all of its dependencies have been checked for changes. In some common cases (load dependency has not changed since last run) this will increase startup time. The main question is "by how much" and is that slower startup time worth it in the interest of only yielding assets that are true to the current state of the filesystem. Should this be configurable? I'm starting to think we should only yield an asset after its (historical) dependencies have been checked for changes + processed as necessary, but I'm curious what you all think. ### Paths Are Currently The Only Canonical ID / Do We Want Asset UUIDs? In this implementation AssetPaths are the only canonical asset identifier (just like the previous Bevy Asset system and Godot). Moving assets will result in re-scans (and currently reprocessing, although reprocessing can easily be avoided with some changes). Asset renames/moves will break code and assets that rely on specific paths, unless those paths are fixed up. Do we want / need "stable asset uuids"? Introducing them is very possible: 1. Generate a UUID and include it in .meta files 2. Support UUID in AssetPath 3. Generate "asset indices" which are loaded on startup and map UUIDs to paths. 4 (maybe). Consider only supporting UUIDs for processed assets so we can generate quick-to-load indices instead of scanning meta files. The main "pro" is that assets referencing UUIDs don't need to be migrated when a path changes. The main "con" is that UUIDs cannot be "lazily resolved" like paths. They need a full view of all assets to answer the question "does this UUID exist". Which means UUIDs require the AssetProcessor to fully finish startup scans before saying an asset doesnt exist. And they essentially require asset pre-processing to use in apps, because scanning all asset metadata files at runtime to resolve a UUID is not viable for medium-to-large apps. It really requires a pre-generated UUID index, which must be loaded before querying for assets. I personally think this should be investigated in a separate PR. Paths aren't going anywhere ... _everyone_ uses filesystems (and filesystem-like apis) to manage their asset source files. I consider them permanent canonical asset information. Additionally, they behave well for both processed and unprocessed asset modes. Given that Bevy is supporting both, this feels like the right canonical ID to start with. UUIDS (and maybe even other indexed-identifier types) can be added later as necessary. ### Folder / File Naming Conventions All asset processing config currently lives in the `.imported_assets` folder. The processor transaction log is in `.imported_assets/log`. Processed assets are added to `.imported_assets/Default`, which will make migrating to processed asset profiles (ex: a `.imported_assets/Mobile` profile) a non-breaking change. It also allows us to create top-level files like `.imported_assets/log` without it being interpreted as an asset. Meta files currently have a `.meta` suffix. Do we like these names and conventions? ### Should the `AssetPlugin::processed_dev` configuration enable `watch_for_changes` automatically? Currently it does (which I think makes sense), but it does make it the only configuration that enables watch_for_changes by default. ### Discuss on_loaded High Level Interface: This PR includes a very rough "proof of concept" `on_loaded` system adapter that uses the `LoadedWithDependencies` event in combination with `asset_server.load_asset` dependency tracking to support this pattern ```rust fn main() { App::new() .init_asset::<MyAssets>() .add_systems(Update, on_loaded(create_array_texture)) .run(); } #[derive(Asset, Clone)] struct MyAssets { #[dependency] picture_of_my_cat: Handle<Image>, #[dependency] picture_of_my_other_cat: Handle<Image>, } impl FromWorld for ArrayTexture { fn from_world(world: &mut World) -> Self { picture_of_my_cat: server.load("meow.png"), picture_of_my_other_cat: server.load("meeeeeeeow.png"), } } fn spawn_cat(In(my_assets): In<MyAssets>, mut commands: Commands) { commands.spawn(SpriteBundle { texture: my_assets.picture_of_my_cat.clone(), ..default() }); commands.spawn(SpriteBundle { texture: my_assets.picture_of_my_other_cat.clone(), ..default() }); } ``` The implementation is _very_ rough. And it is currently unsafe because `bevy_ecs` doesn't expose some internals to do this safely from inside `bevy_asset`. There are plenty of unanswered questions like: * "do we add a Loadable" derive? (effectively automate the FromWorld implementation above) * Should `MyAssets` even be an Asset? (largely implemented this way because it elegantly builds on `server.load_asset(MyAsset { .. })` dependency tracking). We should think hard about what our ideal API looks like (and if this is a pattern we want to support). Not necessarily something we need to solve in this PR. The current `on_loaded` impl should probably be removed from this PR before merging. ## Clarifying Questions ### What about Assets as Entities? This Bevy Asset V2 proposal implementation initially stored Assets as ECS Entities. Instead of `AssetId<T>` + the `Assets<T>` resource it used `Entity` as the asset id and Asset values were just ECS components. There are plenty of compelling reasons to do this: 1. Easier to inline assets in Bevy Scenes (as they are "just" normal entities + components) 2. More flexible queries: use the power of the ECS to filter assets (ex: `Query<Mesh, With<Tree>>`). 3. Extensible. Users can add arbitrary component data to assets. 4. Things like "component visualization tools" work out of the box to visualize asset data. However Assets as Entities has a ton of caveats right now: * We need to be able to allocate entity ids without a direct World reference (aka rework id allocator in Entities ... i worked around this in my prototypes by just pre allocating big chunks of entities) * We want asset change events in addition to ECS change tracking ... how do we populate them when mutations can come from anywhere? Do we use Changed queries? This would require iterating over the change data for all assets every frame. Is this acceptable or should we implement a new "event based" component change detection option? * Reconciling manually created assets with asset-system managed assets has some nuance (ex: are they "loaded" / do they also have that component metadata?) * "how do we handle "static" / default entity handles" (ties in to the Entity Indices discussion: https://github.com/bevyengine/bevy/discussions/8319). This is necessary for things like "built in" assets and default handles in things like SpriteBundle. * Storing asset information as a component makes it easy to "invalidate" asset state by removing the component (or forcing modifications). Ideally we have ways to lock this down (some combination of Rust type privacy and ECS validation) In practice, how we store and identify assets is a reasonably superficial change (porting off of Assets as Entities and implementing dedicated storage + ids took less than a day). So once we sort out the remaining challenges the flip should be straightforward. Additionally, I do still have "Assets as Entities" in my commit history, so we can reuse that work. I personally think "assets as entities" is a good endgame, but it also doesn't provide _significant_ value at the moment and it certainly isn't ready yet with the current state of things. ### Why not Distill? [Distill](https://github.com/amethyst/distill) is a high quality fully featured asset system built in Rust. It is very natural to ask "why not just use Distill?". It is also worth calling out that for awhile, [we planned on adopting Distill / I signed off on it](https://github.com/bevyengine/bevy/issues/708). However I think Bevy has a number of constraints that make Distill adoption suboptimal: * **Architectural Simplicity:** * Distill's processor requires an in-memory database (lmdb) and RPC networked API (using Cap'n Proto). Each of these introduces API complexity that increases maintenance burden and "code grokability". Ignoring tests, documentation, and examples, Distill has 24,237 lines of Rust code (including generated code for RPC + database interactions). If you ignore generated code, it has 11,499 lines. * Bevy builds the AssetProcessor and AssetServer using pluggable AssetReader/AssetWriter Rust traits with simple io interfaces. They do not necessitate databases or RPC interfaces (although Readers/Writers could use them if that is desired). Bevy Asset V2 (at the time of writing this PR) is 5,384 lines of Rust code (ignoring tests, documentation, and examples). Grain of salt: Distill does have more features currently (ex: Asset Packing, GUIDS, remote-out-of-process asset processor). I do plan to implement these features in Bevy Asset V2 and I personally highly doubt they will meaningfully close the 6115 lines-of-code gap. * This complexity gap (which while illustrated by lines of code, is much bigger than just that) is noteworthy to me. Bevy should be hackable and there are pillars of Distill that are very hard to understand and extend. This is a matter of opinion (and Bevy Asset V2 also has complicated areas), but I think Bevy Asset V2 is much more approachable for the average developer. * Necessary disclaimer: counting lines of code is an extremely rough complexity metric. Read the code and form your own opinions. * **Optional Asset Processing:** Not all Bevy Apps (or Bevy App developers) need / want asset preprocessing. Processing increases the complexity of the development environment by introducing things like meta files, imported asset storage, running processors in the background, waiting for processing to finish, etc. Distill _requires_ preprocessing to work. With Bevy Asset V2 processing is fully opt-in. The AssetServer isn't directly aware of asset processors at all. AssetLoaders only care about converting bytes to runtime Assets ... they don't know or care if the bytes were pre-processed or not. Processing is "elegantly" (forgive my self-congratulatory phrasing) layered on top and builds on the existing Asset system primitives. * **Direct Filesystem Access to Processed Asset State:** Distill stores processed assets in a database. This makes debugging / inspecting the processed outputs harder (either requires special tooling to query the database or they need to be "deployed" to be inspected). Bevy Asset V2, on the other hand, stores processed assets in the filesystem (by default ... this is configurable). This makes interacting with the processed state more natural. Note that both Godot and Unity's new asset system store processed assets in the filesystem. * **Portability**: Because Distill's processor uses lmdb and RPC networking, it cannot be run on certain platforms (ex: lmdb is a non-rust dependency that cannot run on the web, some platforms don't support running network servers). Bevy should be able to process assets everywhere (ex: run the Bevy Editor on the web, compile + process shaders on mobile, etc). Distill does partially mitigate this problem by supporting "streaming" assets via the RPC protocol, but this is not a full solve from my perspective. And Bevy Asset V2 can (in theory) also stream assets (without requiring RPC, although this isn't implemented yet) Note that I _do_ still think Distill would be a solid asset system for Bevy. But I think the approach in this PR is a better solve for Bevy's specific "asset system requirements". ### Doesn't async-fs just shim requests to "sync" `std::fs`? What is the point? "True async file io" has limited / spotty platform support. async-fs (and the rust async ecosystem generally ... ex Tokio) currently use async wrappers over std::fs that offload blocking requests to separate threads. This may feel unsatisfying, but it _does_ still provide value because it prevents our task pools from blocking on file system operations (which would prevent progress when there are many tasks to do, but all threads in a pool are currently blocking on file system ops). Additionally, using async APIs for our AssetReaders and AssetWriters also provides value because we can later add support for "true async file io" for platforms that support it. _And_ we can implement other "true async io" asset backends (such as networked asset io). ## Draft TODO - [x] Fill in missing filesystem event APIs: file removed event (which is expressed as dangling RenameFrom events in some cases), file/folder renamed event - [x] Assets without loaders are not moved to the processed folder. This breaks things like referenced `.bin` files for GLTFs. This should be configurable per-non-asset-type. - [x] Initial implementation of Reflect and FromReflect for Handle. The "deserialization" parity bar is low here as this only worked with static UUIDs in the old impl ... this is a non-trivial problem. Either we add a Handle::AssetPath variant that gets "upgraded" to a strong handle on scene load or we use a separate AssetRef type for Bevy scenes (which is converted to a runtime Handle on load). This deserves its own discussion in a different pr. - [x] Populate read_asset_bytes hash when run by the processor (a bit of a special case .. when run by the processor the processed meta will contain the hash so we don't need to compute it on the spot, but we don't want/need to read the meta when run by the main AssetServer) - [x] Delay hot reloading: currently filesystem events are handled immediately, which creates timing issues in some cases. For example hot reloading images can sometimes break because the image isn't finished writing. We should add a delay, likely similar to the [implementation in this PR](https://github.com/bevyengine/bevy/pull/8503). - [x] Port old platform-specific AssetIo implementations to the new AssetReader interface (currently missing Android and web) - [x] Resolve on_loaded unsafety (either by removing the API entirely or removing the unsafe) - [x] Runtime loader setting overrides - [x] Remove remaining unwraps that should be error-handled. There are number of TODOs here - [x] Pretty AssetPath Display impl - [x] Document more APIs - [x] Resolve spurious "reloading because it has changed" events (to repro run load_gltf with `processed_dev()`) - [x] load_dependency hot reloading currently only works for processed assets. If processing is disabled, load_dependency changes are not hot reloaded. - [x] Replace AssetInfo dependency load/fail counters with `loading_dependencies: HashSet<UntypedAssetId>` to prevent reloads from (potentially) breaking counters. Storing this will also enable "dependency reloaded" events (see [Next Steps](#next-steps)) - [x] Re-add filesystem watcher cargo feature gate (currently it is not optional) - [ ] Migration Guide - [ ] Changelog ## Followup TODO - [ ] Replace "eager unchanged processed asset loading" behavior with "don't returned unchanged processed asset until dependencies have been checked". - [ ] Add true `Ignore` AssetAction that does not copy the asset to the imported_assets folder. - [ ] Finish "live asset unloading" (ex: free up CPU asset memory after uploading an image to the GPU), rethink RenderAssets, and port renderer features. The `Assets` collection uses `Option<T>` for asset storage to support its removal. (1) the Option might not actually be necessary ... might be able to just remove from the collection entirely (2) need to finalize removal apis - [ ] Try replacing the "channel based" asset id recycling with something a bit more efficient (ex: we might be able to use raw atomic ints with some cleverness) - [ ] Consider adding UUIDs to processed assets (scoped just to helping identify moved assets ... not exposed to load queries ... see [Next Steps](#next-steps)) - [ ] Store "last modified" source asset and meta timestamps in processed meta files to enable skipping expensive hashing when the file wasn't changed - [ ] Fix "slow loop" handle drop fix - [ ] Migrate to TypeName - [x] Handle "loader preregistration". See #9429 ## Next Steps * **Configurable per-type defaults for AssetMeta**: It should be possible to add configuration like "all png image meta should default to using nearest sampling" (currently this hard-coded per-loader/processor Settings::default() impls). Also see the "Folder Meta" bullet point. * **Avoid Reprocessing on Asset Renames / Moves**: See the "canonical asset ids" discussion in [Open Questions](#open-questions) and the relevant bullet point in [Draft TODO](#draft-todo). Even without canonical ids, folder renames could avoid reprocessing in some cases. * **Multiple Asset Sources**: Expand AssetPath to support "asset source names" and support multiple AssetReaders in the asset server (ex: `webserver://some_path/image.png` backed by an Http webserver AssetReader). The "default" asset reader would use normal `some_path/image.png` paths. Ideally this works in combination with multiple AssetWatchers for hot-reloading * **Stable Type Names**: this pr removes the TypeUuid requirement from assets in favor of `std::any::type_name`. This makes defining assets easier (no need to generate a new uuid / use weird proc macro syntax). It also makes reading meta files easier (because things have "friendly names"). We also use type names for components in scene files. If they are good enough for components, they are good enough for assets. And consistency across Bevy pillars is desirable. However, `std::any::type_name` is not guaranteed to be stable (although in practice it is). We've developed a [stable type path](https://github.com/bevyengine/bevy/pull/7184) to resolve this, which should be adopted when it is ready. * **Command Line Interface**: It should be possible to run the asset processor in a separate process from the command line. This will also require building a network-server-backed AssetReader to communicate between the app and the processor. We've been planning to build a "bevy cli" for awhile. This seems like a good excuse to build it. * **Asset Packing**: This is largely an additive feature, so it made sense to me to punt this until we've laid the foundations in this PR. * **Per-Platform Processed Assets**: It should be possible to generate assets for multiple platforms by supporting multiple "processor profiles" per asset (ex: compress with format X on PC and Y on iOS). I think there should probably be arbitrary "profiles" (which can be separate from actual platforms), which are then assigned to a given platform when generating the final asset distribution for that platform. Ex: maybe devs want a "Mobile" profile that is shared between iOS and Android. Or a "LowEnd" profile shared between web and mobile. * **Versioning and Migrations**: Assets, Loaders, Savers, and Processors need to have versions to determine if their schema is valid. If an asset / loader version is incompatible with the current version expected at runtime, the processor should be able to migrate them. I think we should try using Bevy Reflect for this, as it would allow us to load the old version as a dynamic Reflect type without actually having the old Rust type. It would also allow us to define "patches" to migrate between versions (Bevy Reflect devs are currently working on patching). The `.meta` file already has its own format version. Migrating that to new versions should also be possible. * **Real Copy-on-write AssetPaths**: Rust's actual Cow (clone-on-write type) currently used by AssetPath can still result in String clones that aren't actually necessary (cloning an Owned Cow clones the contents). Bevy's asset system requires cloning AssetPaths in a number of places, which result in actual clones of the internal Strings. This is not efficient. AssetPath internals should be reworked to exhibit truer cow-like-behavior that reduces String clones to the absolute minimum. * **Consider processor-less processing**: In theory the AssetServer could run processors "inline" even if the background AssetProcessor is disabled. If we decide this is actually desirable, we could add this. But I don't think its a priority in the short or medium term. * **Pre-emptive dependency loading**: We could encode dependencies in processed meta files, which could then be used by the Asset Server to kick of dependency loads as early as possible (prior to starting the actual asset load). Is this desirable? How much time would this save in practice? * **Optimize Processor With UntypedAssetIds**: The processor exclusively uses AssetPath to identify assets currently. It might be possible to swap these out for UntypedAssetIds in some places, which are smaller / cheaper to hash and compare. * **One to Many Asset Processing**: An asset source file that produces many assets currently must be processed into a single "processed" asset source. If labeled assets can be written separately they can each have their own configured savers _and_ they could be loaded more granularly. Definitely worth exploring! * **Automatically Track "Runtime-only" Asset Dependencies**: Right now, tracking "created at runtime" asset dependencies requires adding them via `asset_server.load_asset(StandardMaterial::default())`. I think with some cleverness we could also do this for `materials.add(StandardMaterial::default())`, making tracking work "everywhere". There are challenges here relating to change detection / ensuring the server is made aware of dependency changes. This could be expensive in some cases. * **"Dependency Changed" events**: Some assets have runtime artifacts that need to be re-generated when one of their dependencies change (ex: regenerate a material's bind group when a Texture needs to change). We are generating the dependency graph so we can definitely produce these events. Buuuuut generating these events will have a cost / they could be high frequency for some assets, so we might want this to be opt-in for specific cases. * **Investigate Storing More Information In Handles**: Handles can now store arbitrary information, which makes it cheaper and easier to access. How much should we move into them? Canonical asset load states (via atomics)? (`handle.is_loaded()` would be very cool). Should we store the entire asset and remove the `Assets<T>` collection? (`Arc<RwLock<Option<Image>>>`?) * **Support processing and loading files without extensions**: This is a pretty arbitrary restriction and could be supported with very minimal changes. * **Folder Meta**: It would be nice if we could define per folder processor configuration defaults (likely in a `.meta` or `.folder_meta` file). Things like "default to linear filtering for all Images in this folder". * **Replace async_broadcast with event-listener?** This might be approximately drop-in for some uses and it feels more light weight * **Support Running the AssetProcessor on the Web**: Most of the hard work is done here, but there are some easy straggling TODOs (make the transaction log an interface instead of a direct file writer so we can write a web storage backend, implement an AssetReader/AssetWriter that reads/writes to something like LocalStorage). * **Consider identifying and preventing circular dependencies**: This is especially important for "processor dependencies", as processing will silently never finish in these cases. * **Built-in/Inlined Asset Hot Reloading**: This PR regresses "built-in/inlined" asset hot reloading (previously provided by the DebugAssetServer). I'm intentionally punting this because I think it can be cleanly implemented with "multiple asset sources" by registering a "debug asset source" (ex: `debug://bevy_pbr/src/render/pbr.wgsl` asset paths) in combination with an AssetWatcher for that asset source and support for "manually loading pats with asset bytes instead of AssetReaders". The old DebugAssetServer was quite nasty and I'd love to avoid that hackery going forward. * **Investigate ways to remove double-parsing meta files**: Parsing meta files currently involves parsing once with "minimal" versions of the meta file to extract the type name of the loader/processor config, then parsing again to parse the "full" meta. This is suboptimal. We should be able to define custom deserializers that (1) assume the loader/processor type name comes first (2) dynamically looks up the loader/processor registrations to deserialize settings in-line (similar to components in the bevy scene format). Another alternative: deserialize as dynamic Reflect objects and then convert. * **More runtime loading configuration**: Support using the Handle type as a hint to select an asset loader (instead of relying on AssetPath extensions) * **More high level Processor trait implementations**: For example, it might be worth adding support for arbitrary chains of "asset transforms" that modify an in-memory asset representation between loading and saving. (ex: load a Mesh, run a `subdivide_mesh` transform, followed by a `flip_normals` transform, then save the mesh to an efficient compressed format). * **Bevy Scene Handle Deserialization**: (see the relevant [Draft TODO item](#draft-todo) for context) * **Explore High Level Load Interfaces**: See [this discussion](#discuss-on_loaded-high-level-interface) for one prototype. * **Asset Streaming**: It would be great if we could stream Assets (ex: stream a long video file piece by piece) * **ID Exchanging**: In this PR Asset Handles/AssetIds are bigger than they need to be because they have a Uuid enum variant. If we implement an "id exchanging" system that trades Uuids for "efficient runtime ids", we can cut down on the size of AssetIds, making them more efficient. This has some open design questions, such as how to spawn entities with "default" handle values (as these wouldn't have access to the exchange api in the current system). * **Asset Path Fixup Tooling**: Assets that inline asset paths inside them will break when an asset moves. The asset system provides the functionality to detect when paths break. We should build a framework that enables formats to define "path migrations". This is especially important for scene files. For editor-generated files, we should also consider using UUIDs (see other bullet point) to avoid the need to migrate in these cases. --------- Co-authored-by: BeastLe9enD <beastle9end@outlook.de> Co-authored-by: Mike <mike.hsu@gmail.com> Co-authored-by: Nicola Papale <nicopap@users.noreply.github.com> |
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Rob Parrett
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04885eb49c
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Fix doc link in transparent_window example (#9697)
# Objective This link became invalid after #5589. ## Solution The docs that were being linked to still exist, but they're on `Window` now. This PR just updates that link. |
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Robert Swain
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e9b3aeb38f
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Enhance bevymark (#9674)
# Objective - In preparation for an initial 2D/3D mesh batching/instancing PR, enhance `bevymark` to support some different test modes that enable comparison and optimisation of performance ## Solution - Use `argh` for command line interface options - Use seeded `StdRng` for reproducible random number generation - Add a mode for testing 2D meshes that includes an option to uniquely vary the data of each material by setting a random flat colour on the `ColorMaterial`. - Add a way of specifying the number of different textures to use for sprites or meshes. These are generated at the same resolution as the Bevy bird icon, but are just random flat colours for testing. - Add a benchmark mode that spawns all entities during setup, and animates the entities using a fixed delta time for reproducible animation. The initially-spawned entities are still spawned in waves and animated as they would have been had they spawned at intervals. --------- Co-authored-by: IceSentry <IceSentry@users.noreply.github.com> |
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Rob Parrett
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870d46ec2e
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Use default resolution for viewport_debug example (#9666)
# Objective The `viewport_debug` example opens a window that is physically very large. Probably larger than the screen for the majority of machines. ## Solution Remove the custom resolution and adjust the pixel coordinates so that everything lines up. At the default resolution, everything is still whole numbers even without adjusting the viewport coordinates. |
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Robert Swain
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40c6b3b91e
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Enhance many_cubes stress test use cases (#9596)
# Objective - Make `many_cubes` suitable for testing various parts of the upcoming batching work. ## Solution - Use `argh` for CLI. - Default to the sphere layout as it is more useful for benchmarking. - Add a benchmark mode that advances the camera by a fixed step to render the same frames across runs. - Add an option to vary the material data per-instance. The color is randomized. - Add an option to generate a number of textures and randomly choose one per instance. - Use seeded `StdRng` for deterministic random numbers. |
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Joseph
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02b520b4e8
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Split ComputedVisibility into two components to allow for accurate change detection and speed up visibility propagation (#9497)
# Objective Fix #8267. Fixes half of #7840. The `ComputedVisibility` component contains two flags: hierarchy visibility, and view visibility (whether its visible to any cameras). Due to the modular and open-ended way that view visibility is computed, it triggers change detection every single frame, even when the value does not change. Since hierarchy visibility is stored in the same component as view visibility, this means that change detection for inherited visibility is completely broken. At the company I work for, this has become a real issue. We are using change detection to only re-render scenes when necessary. The broken state of change detection for computed visibility means that we have to to rely on the non-inherited `Visibility` component for now. This is workable in the early stages of our project, but since we will inevitably want to use the hierarchy, we will have to either: 1. Roll our own solution for computed visibility. 2. Fix the issue for everyone. ## Solution Split the `ComputedVisibility` component into two: `InheritedVisibilty` and `ViewVisibility`. This allows change detection to behave properly for `InheritedVisibility`. View visiblity is still erratic, although it is less useful to be able to detect changes for this flavor of visibility. Overall, this actually simplifies the API. Since the visibility system consists of self-explaining components, it is much easier to document the behavior and usage. This approach is more modular and "ECS-like" -- one could strip out the `ViewVisibility` component entirely if it's not needed, and rely only on inherited visibility. --- ## Changelog - `ComputedVisibility` has been removed in favor of: `InheritedVisibility` and `ViewVisiblity`. ## Migration Guide The `ComputedVisibilty` component has been split into `InheritedVisiblity` and `ViewVisibility`. Replace any usages of `ComputedVisibility::is_visible_in_hierarchy` with `InheritedVisibility::get`, and replace `ComputedVisibility::is_visible_in_view` with `ViewVisibility::get`. ```rust // Before: commands.spawn(VisibilityBundle { visibility: Visibility::Inherited, computed_visibility: ComputedVisibility::default(), }); // After: commands.spawn(VisibilityBundle { visibility: Visibility::Inherited, inherited_visibility: InheritedVisibility::default(), view_visibility: ViewVisibility::default(), }); ``` ```rust // Before: fn my_system(q: Query<&ComputedVisibilty>) { for vis in &q { if vis.is_visible_in_hierarchy() { // After: fn my_system(q: Query<&InheritedVisibility>) { for inherited_visibility in &q { if inherited_visibility.get() { ``` ```rust // Before: fn my_system(q: Query<&ComputedVisibilty>) { for vis in &q { if vis.is_visible_in_view() { // After: fn my_system(q: Query<&ViewVisibility>) { for view_visibility in &q { if view_visibility.get() { ``` ```rust // Before: fn my_system(mut q: Query<&mut ComputedVisibilty>) { for vis in &mut q { vis.set_visible_in_view(); // After: fn my_system(mut q: Query<&mut ViewVisibility>) { for view_visibility in &mut q { view_visibility.set(); ``` --------- Co-authored-by: Robert Swain <robert.swain@gmail.com> |
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lelo
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42e6dc8987
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Refactor EventReader::iter to read (#9631)
# Objective - The current `EventReader::iter` has been determined to cause confusion among new Bevy users. It was suggested by @JoJoJet to rename the method to better clarify its usage. - Solves #9624 ## Solution - Rename `EventReader::iter` to `EventReader::read`. - Rename `EventReader::iter_with_id` to `EventReader::read_with_id`. - Rename `ManualEventReader::iter` to `ManualEventReader::read`. - Rename `ManualEventReader::iter_with_id` to `ManualEventReader::read_with_id`. --- ## Changelog - `EventReader::iter` has been renamed to `EventReader::read`. - `EventReader::iter_with_id` has been renamed to `EventReader::read_with_id`. - `ManualEventReader::iter` has been renamed to `ManualEventReader::read`. - `ManualEventReader::iter_with_id` has been renamed to `ManualEventReader::read_with_id`. - Deprecated `EventReader::iter` - Deprecated `EventReader::iter_with_id` - Deprecated `ManualEventReader::iter` - Deprecated `ManualEventReader::iter_with_id` ## Migration Guide - Existing usages of `EventReader::iter` and `EventReader::iter_with_id` will have to be changed to `EventReader::read` and `EventReader::read_with_id` respectively. - Existing usages of `ManualEventReader::iter` and `ManualEventReader::iter_with_id` will have to be changed to `ManualEventReader::read` and `ManualEventReader::read_with_id` respectively. |
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Ame :]
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f2f39c835a
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Check for bevy_internal imports in CI (#9612)
# Objective - Avoid using bevy_internal imports in examples. ## Solution - Add CI to check for bevy_internal imports like suggested in https://github.com/bevyengine/bevy/pull/9547#issuecomment-1689377999 - Fix another import I don't know much about CI so I don't know if this is the better approach, but I think is better than doing a pull request every time I found this lol, any suggestion is welcome. --------- Co-authored-by: Rob Parrett <robparrett@gmail.com> |
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Ame :]
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1399078f12
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remove VecSwizzles imports (#9629)
# Objective - Since #9387, there is no need to import VecSwizzles separately, it is already included in the prelude. ## Solution - Remove the imports. |
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ickshonpe
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2b2abcef97
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Replace uses of entity.insert with tuple bundles in game_menu example (#9619)
# Objective Change two places where `entity.insert` is used to add components individually to spawn a tuple bundle instead. |
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jnhyatt
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087a345579
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Rename Bezier to CubicBezier for clarity (#9554)
# Objective A Bezier curve is a curve defined by two or more control points. In the simplest form, it's just a line. The (arguably) most common type of Bezier curve is a cubic Bezier, defined by four control points. These are often used in animation, etc. Bevy has a Bezier curve struct called `Bezier`. However, this is technically a misnomer as it only represents cubic Bezier curves. ## Solution This PR changes the struct name to `CubicBezier` to more accurately reflect the struct's usage. Since it's exposed in Bevy's prelude, it can potentially collide with other `Bezier` implementations. While that might instead be an argument for removing it from the prelude, there's also something to be said for adding a more general `Bezier` into Bevy, in which case we'd likely want to use the name `Bezier`. As a final motivator, not only is the struct located in `cubic_spines.rs`, there are also several other spline-related structs which follow the `CubicXxx` naming convention where applicable. For example, `CubicSegment` represents a cubic Bezier curve (with coefficients pre-baked). --- ## Migration Guide - Change all `Bezier` references to `CubicBezier` |
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DevinLeamy
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db5f80b2be
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API updates to the AnimationPlayer (#9002)
# Objective Added `AnimationPlayer` API UX improvements. - Succestor to https://github.com/bevyengine/bevy/pull/5912 - Fixes https://github.com/bevyengine/bevy/issues/5848 _(Credits to @asafigan for filing #5848, creating the initial pull request, and the discussion in #5912)_ ## Solution - Created `RepeatAnimation` enum to describe an animation repetition behavior. - Added `is_finished()`, `set_repeat()`, and `is_playback_reversed()` methods to the animation player. - ~~Made the animation clip optional as per the comment from #5912~~ > ~~My problem is that the default handle [used the initialize a `PlayingAnimation`] could actually refer to an actual animation if an AnimationClip is set for the default handle, which leads me to ask, "Should animation_clip should be an Option?"~~ - Added an accessor for the animation clip `animation_clip()` to the animation player. To determine if an animation is finished, we use the number of times the animation has completed and the repetition behavior. If the animation is playing in reverse then `elapsed < 0.0` counts as a completion. Otherwise, `elapsed > animation.duration` counts as a completion. This is what I would expect, personally. If there's any ambiguity, perhaps we could add some `AnimationCompletionBehavior`, to specify that kind of completion behavior to use. Update: Previously `PlayingAnimation::elapsed` was being used as the seek time into the animation clip. This was misleading because if you increased the speed of the animation it would also increase (or decrease) the elapsed time. In other words, the elapsed time was not actually the elapsed time. To solve this, we introduce `PlayingAnimation::seek_time` to serve as the value we manipulate the move between keyframes. Consequently, `elapsed()` now returns the actual elapsed time, and is not effected by the animation speed. Because `set_elapsed` was being used to manipulate the displayed keyframe, we introduce `AnimationPlayer::seek_to` and `AnimationPlayer::replay` to provide this functionality. ## Migration Guide - Removed `set_elapsed`. - Removed `stop_repeating` in favour of `AnimationPlayer::set_repeat(RepeatAnimation::Never)`. - Introduced `seek_to` to seek to a given timestamp inside of the animation. - Introduced `seek_time` accessor for the `PlayingAnimation::seek_to`. - Introduced `AnimationPlayer::replay` to reset the `PlayingAnimation` to a state where no time has elapsed. --------- Co-authored-by: Hennadii Chernyshchyk <genaloner@gmail.com> Co-authored-by: François <mockersf@gmail.com> |
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Joseph
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474b55a29c
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Add system.map(...) for transforming the output of a system (#8526)
# Objective Any time we wish to transform the output of a system, we currently use system piping to do so: ```rust my_system.pipe(|In(x)| do_something(x)) ``` Unfortunately, system piping is not a zero cost abstraction. Each call to `.pipe` requires allocating two extra access sets: one for the second system and one for the combined accesses of both systems. This also adds extra work to each call to `update_archetype_component_access`, which stacks as one adds multiple layers of system piping. ## Solution Add the `AdapterSystem` abstraction: similar to `CombinatorSystem`, this allows you to implement a trait to generically control how a system is run and how its inputs and outputs are processed. Unlike `CombinatorSystem`, this does not have any overhead when computing world accesses which makes it ideal for simple operations such as inverting or ignoring the output of a system. Add the extension method `.map(...)`: this is similar to `.pipe(...)`, only it accepts a closure as an argument instead of an `In<T>` system. ```rust my_system.map(do_something) ``` This has the added benefit of making system names less messy: a system that ignores its output will just be called `my_system`, instead of `Pipe(my_system, ignore)` --- ## Changelog TODO ## Migration Guide The `system_adapter` functions have been deprecated: use `.map` instead, which is a lightweight alternative to `.pipe`. ```rust // Before: my_system.pipe(system_adapter::ignore) my_system.pipe(system_adapter::unwrap) my_system.pipe(system_adapter::new(T::from)) // After: my_system.map(std::mem::drop) my_system.map(Result::unwrap) my_system.map(T::from) // Before: my_system.pipe(system_adapter::info) my_system.pipe(system_adapter::dbg) my_system.pipe(system_adapter::warn) my_system.pipe(system_adapter::error) // After: my_system.map(bevy_utils::info) my_system.map(bevy_utils::dbg) my_system.map(bevy_utils::warn) my_system.map(bevy_utils::error) ``` --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> |
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James O'Brien
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4f1d9a6315
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Reorder render sets, refactor bevy_sprite to take advantage (#9236)
This is a continuation of this PR: #8062 # Objective - Reorder render schedule sets to allow data preparation when phase item order is known to support improved batching - Part of the batching/instancing etc plan from here: https://github.com/bevyengine/bevy/issues/89#issuecomment-1379249074 - The original idea came from @inodentry and proved to be a good one. Thanks! - Refactor `bevy_sprite` and `bevy_ui` to take advantage of the new ordering ## Solution - Move `Prepare` and `PrepareFlush` after `PhaseSortFlush` - Add a `PrepareAssets` set that runs in parallel with other systems and sets in the render schedule. - Put prepare_assets systems in the `PrepareAssets` set - If explicit dependencies are needed on Mesh or Material RenderAssets then depend on the appropriate system. - Add `ManageViews` and `ManageViewsFlush` sets between `ExtractCommands` and Queue - Move `queue_mesh*_bind_group` to the Prepare stage - Rename them to `prepare_` - Put systems that prepare resources (buffers, textures, etc.) into a `PrepareResources` set inside `Prepare` - Put the `prepare_..._bind_group` systems into a `PrepareBindGroup` set after `PrepareResources` - Move `prepare_lights` to the `ManageViews` set - `prepare_lights` creates views and this must happen before `Queue` - This system needs refactoring to stop handling all responsibilities - Gather lights, sort, and create shadow map views. Store sorted light entities in a resource - Remove `BatchedPhaseItem` - Replace `batch_range` with `batch_size` representing how many items to skip after rendering the item or to skip the item entirely if `batch_size` is 0. - `queue_sprites` has been split into `queue_sprites` for queueing phase items and `prepare_sprites` for batching after the `PhaseSort` - `PhaseItem`s are still inserted in `queue_sprites` - After sorting adjacent compatible sprite phase items are accumulated into `SpriteBatch` components on the first entity of each batch, containing a range of vertex indices. The associated `PhaseItem`'s `batch_size` is updated appropriately. - `SpriteBatch` items are then drawn skipping over the other items in the batch based on the value in `batch_size` - A very similar refactor was performed on `bevy_ui` --- ## Changelog Changed: - Reordered and reworked render app schedule sets. The main change is that data is extracted, queued, sorted, and then prepared when the order of data is known. - Refactor `bevy_sprite` and `bevy_ui` to take advantage of the reordering. ## Migration Guide - Assets such as materials and meshes should now be created in `PrepareAssets` e.g. `prepare_assets<Mesh>` - Queueing entities to `RenderPhase`s continues to be done in `Queue` e.g. `queue_sprites` - Preparing resources (textures, buffers, etc.) should now be done in `PrepareResources`, e.g. `prepare_prepass_textures`, `prepare_mesh_uniforms` - Prepare bind groups should now be done in `PrepareBindGroups` e.g. `prepare_mesh_bind_group` - Any batching or instancing can now be done in `Prepare` where the order of the phase items is known e.g. `prepare_sprites` ## Next Steps - Introduce some generic mechanism to ensure items that can be batched are grouped in the phase item order, currently you could easily have `[sprite at z 0, mesh at z 0, sprite at z 0]` preventing batching. - Investigate improved orderings for building the MeshUniform buffer - Implementing batching across the rest of bevy --------- Co-authored-by: Robert Swain <robert.swain@gmail.com> Co-authored-by: robtfm <50659922+robtfm@users.noreply.github.com> |
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Zachary Harrold
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90b3ac7f3a
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Added Val::ZERO Constant (#9566)
# Objective - Fixes #9533 ## Solution * Added `Val::ZERO` as a constant which is defined as `Val::Px(0.)`. * Added manual `PartialEq` implementation for `Val` which allows any zero value to equal any other zero value. E.g., `Val::Px(0.) == Val::Percent(0.)` etc. This is technically a breaking change, as `Val::Px(0.) == Val::Percent(0.)` now equals `true` instead of `false` (as an example) * Replaced instances of `Val::Px(0.)`, `Val::Percent(0.)`, etc. with `Val::ZERO` * Fixed `bevy_ui::layout::convert::tests::test_convert_from` test to account for Taffy not equating `Points(0.)` and `Percent(0.)`. These tests now use `assert_eq!(...)` instead of `assert!(matches!(...))` which gives easier to diagnose error messages. |
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Rob Parrett
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a788e31ad5
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Fix CI for Rust 1.72 (#9562)
# 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> |
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ickshonpe
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373f1eeb1e
|
UI examples clean up (#9479)
# 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. |
||
|
Ame :]
|
427ba3074a
|
fix bevy imports. windows_settings.rs example (#9547)
# 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. |
||
|
IceSentry
|
49bbbe01d5
|
User controlled window visibility (#9355)
# 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. |
||
|
Joshua Walton
|
140d9612e6
|
Add GamepadButtonInput event (#9008)
# 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> |
||
|
st0rmbtw
|
b6a9d8eba7
|
Change UiScale to a tuple struct (#9444)
# 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)```
|
||
|
Robert Swain
|
0a11af9375
|
Reduce the size of MeshUniform to improve performance (#9416)
# 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); ``` |
||
|
Oli Wilkins
|
43fe83b7c6
|
Example Comment Typo Fix (#9427)
# Objective Fixes a typo in one of the comments in an example. ## Solution Fix the typo in the comment. |
||
|
Seb Ospina
|
e489dcc9e8
|
webgl feature renamed to webgl2 (#9370)
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> |
||
|
ickshonpe
|
6a8fd54006
|
Unnecessary line in game_menu example (#9406)
# 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.
|
||
|
Hans Meine
|
1abb6b0758
|
elaborate on TaskPool and bevy tasks (#8750)
# 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> |
||
|
Ame :]
|
06f7f9640a
|
Use bevy crates imports instead of bevy internal. post_processing example (#9396)
# Objective - I want to run the post_processing example in a new project, but I can't because it uses bevy internal imports. ## Solution - Change the bevy_internal imports to their respective bevy crates imports |
||
|
Dimitri Belopopsky
|
b8695d06b1
|
Fix non-visible motion vector text in shader prepass example (#9155)
# Objective
In the shader prepass example, changing to the motion vector output
hides the text, because both it and the background are rendererd black.
Seems to have been caused by this commit?
|
||
|
IceSentry
|
171ff1b1e1
|
use ViewNodeRunner in the post_processing example (#9127)
# Objective - I forgot to update the example after the `ViewNodeRunner` was merged. It was even partially mentioned in one of the comments. ## Solution - Use the `ViewNodeRunner` in the post_processing example - I also broke up a few lines that were a bit long --------- Co-authored-by: JMS55 <47158642+JMS55@users.noreply.github.com> |
||
|
Rob Parrett
|
e1e2407091
|
Fix post_processing example on webgl2 (#9361)
# Objective
The `post_processing` example is currently broken when run with webgl2.
```
cargo run --example post_processing --target=wasm32-unknown-unknown
```
```
wasm.js:387 panicked at 'wgpu error: Validation Error
Caused by:
In Device::create_render_pipeline
note: label = `post_process_pipeline`
In the provided shader, the type given for group 0 binding 2 has a size of 4. As the device does not support `DownlevelFlags::BUFFER_BINDINGS_NOT_16_BYTE_ALIGNED`, the type must have a size that is a multiple of 16 bytes.
```
I bisected the breakage to
|
||
|
François
|
b6a2fc5d80
|
Improve execution of examples in CI (#9331)
# Objective
- Some examples crash in CI because of needing too many resources for
the windows runner
- Some examples have random results making it hard to compare
screenshots
## Solution
- `bloom_3d`: reduce the number of spheres
- `pbr`: use simpler spheres and reuse the mesh
- `tonemapping`: use simpler spheres and reuse the mesh
- `shadow_biases`: reduce the number of spheres
- `spotlight`: use a seeded rng, move more cubes in view while reducing
the total number of cubes, and reuse meshes and materials
- `external_source_external_thread`, `iter_combinations`,
`parallel_query`: use a seeded rng
Examples of errors encountered:
```
Caused by:
In Device::create_bind_group
note: label = `bloom_upsampling_bind_group`
Not enough memory left
```
```
Caused by:
In Queue::write_buffer
Parent device is lost
```
```
ERROR wgpu_core::device::life: Mapping failed Device(Lost)
```
|
||
|
Cameron
|
c0510c87ff
|
Improve bevy_winit documentation (#7609)
Redo of #7590 since I messed up my branch. # Objective - Revise docs. - Refactor event loop code a little bit to make it easier to follow. ## Solution - Do the above. --- ### Migration Guide - `UpdateMode::Reactive { max_wait: .. }` -> `UpdateMode::Reactive { wait: .. }` - `UpdateMode::ReactiveLowPower { max_wait: .. }` -> `UpdateMode::ReactiveLowPower { wait: .. }` --------- Co-authored-by: Sélène Amanita <134181069+Selene-Amanita@users.noreply.github.com> |
||
|
Ars Militaris Dev
|
370eed05e5
|
Fix timers.rs documentation (#9290)
# Objective The documentation for the `print_when_completed` system stated that this system would tick the `Timer` component on every entity in the scene. This was incorrect as this system only ticks the `Timer` on entities with the `PrintOnCompletionTimer` component. ## Solution We suggest a modification to the documentation of this system to make it more clear. |
||
|
Василий Чай
|
fb9c5a6cbb
|
Added Pitch as an alternative sound source (#9225)
# Objective My attempt at implementing #7515 ## Solution Added struct `Pitch` and implemented on it `Source` trait. ## Changelog ### Added - File pitch.rs to bevy_audio crate - Struct `Pitch` and type aliases for `AudioSourceBundle<Pitch>` and `SpatialAudioSourceBundle<Pitch>` - New example showing how to use `PitchBundle` ### Changed - `AudioPlugin` now adds system for `Pitch` audio --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> |
||
|
Paul Buehne
|
0566e73af4
|
Fixed typo in line 322 (#9276)
`trait` was spelled `trai` and used singular instead of plural in documenting comment. |
||
|
张林伟
|
dfe462b019
|
Update text example using default font (#9259)
# Objective - Fixes https://github.com/bevyengine/bevy/issues/9233 |
||
|
Joseph
|
ddbfa48711
|
Simplify parallel iteration methods (#8854)
# Objective
The `QueryParIter::for_each_mut` function is required when doing
parallel iteration with mutable queries.
This results in an unfortunate stutter:
`query.par_iter_mut().par_for_each_mut()` ('mut' is repeated).
## Solution
- Make `for_each` compatible with mutable queries, and deprecate
`for_each_mut`. In order to prevent `for_each` from being called
multiple times in parallel, we take ownership of the QueryParIter.
---
## Changelog
- `QueryParIter::for_each` is now compatible with mutable queries.
`for_each_mut` has been deprecated as it is now redundant.
## Migration Guide
The method `QueryParIter::for_each_mut` has been deprecated and is no
longer functional. Use `for_each` instead, which now supports mutable
queries.
```rust
// Before:
query.par_iter_mut().for_each_mut(|x| ...);
// After:
query.par_iter_mut().for_each(|x| ...);
```
The method `QueryParIter::for_each` now takes ownership of the
`QueryParIter`, rather than taking a shared reference.
```rust
// Before:
let par_iter = my_query.par_iter().batching_strategy(my_batching_strategy);
par_iter.for_each(|x| {
// ...Do stuff with x...
par_iter.for_each(|y| {
// ...Do nested stuff with y...
});
});
// After:
my_query.par_iter().batching_strategy(my_batching_strategy).for_each(|x| {
// ...Do stuff with x...
my_query.par_iter().batching_strategy(my_batching_strategy).for_each(|y| {
// ...Do nested stuff with y...
});
});
```
|
||
|
Aleksa Pavlović
|
5e8ee108cb
|
Add option to toggle window control buttons (#9083)
# Objective Implements #9082 but with an option to toggle minimize and close buttons too. ## Solution - Added an `enabled_buttons` member to the `Window` struct through which users can enable or disable specific window control buttons. --- ## Changelog - Added an `enabled_buttons` member to the `Window` struct through which users can enable or disable specific window control buttons. - Added a new system to the `window_settings` example which demonstrates the toggling functionality. --- ## Migration guide - Added an `enabled_buttons` member to the `Window` struct through which users can enable or disable specific window control buttons. |
||
|
François
|
eb485b1acc
|
use AutoNoVsync in stress tests (#9229)
# Objective - Some stress tests use `Immediate` which is not supported everywhere ## Solution - Use `AutoNoVsync` instead |
||
|
Manuel Fuchs
|
b7cda3293f
|
Fix path reference to contributors example (#9219)
# Objective Fix in incorrect reference to another example. ## Solution Fix the reference. :-) |
||
|
ClayenKitten
|
ffc572728f
|
Fix typos throughout the project (#9090)
# Objective
Fix typos throughout the project.
## Solution
[`typos`](https://github.com/crate-ci/typos) project was used for
scanning, but no automatic corrections were applied. I checked
everything by hand before fixing.
Most of the changes are documentation/comments corrections. Also, there
are few trivial changes to code (variable name, pub(crate) function name
and a few error/panic messages).
## Unsolved
`bevy_reflect_derive` has
[typo](
|
||
|
Ida "Iyes
|
fb4c21e3e6
|
bevy_audio: ECS-based API redesign (#8424)
# Objective
Improve the `bevy_audio` API to make it more user-friendly and
ECS-idiomatic. This PR is a first-pass at addressing some of the most
obvious (to me) problems. In the interest of keeping the scope small,
further improvements can be done in future PRs.
The current `bevy_audio` API is very clunky to work with, due to how it
(ab)uses bevy assets to represent audio sinks.
The user needs to write a lot of boilerplate (accessing
`Res<Assets<AudioSink>>`) and deal with a lot of cognitive overhead
(worry about strong vs. weak handles, etc.) in order to control audio
playback.
Audio playback is initiated via a centralized `Audio` resource, which
makes it difficult to keep track of many different sounds playing in a
typical game.
Further, everything carries a generic type parameter for the sound
source type, making it difficult to mix custom sound sources (such as
procedurally generated audio or unofficial formats) with regular audio
assets.
Let's fix these issues.
## Solution
Refactor `bevy_audio` to a more idiomatic ECS API. Remove the `Audio`
resource. Do everything via entities and components instead.
Audio playback data is now stored in components:
- `PlaybackSettings`, `SpatialSettings`, `Handle<AudioSource>` are now
components. The user inserts them to tell Bevy to play a sound and
configure the initial playback parameters.
- `AudioSink`, `SpatialAudioSink` are now components instead of special
magical "asset" types. They are inserted by Bevy when it actually begins
playing the sound, and can be queried for by the user in order to
control the sound during playback.
Bundles: `AudioBundle` and `SpatialAudioBundle` are available to make it
easy for users to play sounds. Spawn an entity with one of these bundles
(or insert them to a complex entity alongside other stuff) to play a
sound.
Each entity represents a sound to be played.
There is also a new "auto-despawn" feature (activated using
`PlaybackSettings`), which, if enabled, tells Bevy to despawn entities
when the sink playback finishes. This allows for "fire-and-forget" sound
playback. Users can simply
spawn entities whenever they want to play sounds and not have to worry
about leaking memory.
## Unsolved Questions
I think the current design is *fine*. I'd be happy for it to be merged.
It has some possibly-surprising usability pitfalls, but I think it is
still much better than the old `bevy_audio`. Here are some discussion
questions for things that we could further improve. I'm undecided on
these questions, which is why I didn't implement them. We should decide
which of these should be addressed in this PR, and what should be left
for future PRs. Or if they should be addressed at all.
### What happens when sounds start playing?
Currently, the audio sink components are inserted and the bundle
components are kept. Should Bevy remove the bundle components? Something
else?
The current design allows an entity to be reused for playing the same
sound with the same parameters repeatedly. This is a niche use case I'd
like to be supported, but if we have to give it up for a simpler design,
I'd be fine with that.
### What happens if users remove any of the components themselves?
As described above, currently, entities can be reused. Removing the
audio sink causes it to be "detached" (I kept the old `Drop` impl), so
the sound keeps playing. However, if the audio bundle components are not
removed, Bevy will detect this entity as a "queued" sound entity again
(has the bundle compoenents, without a sink component), just like before
playing the sound the first time, and start playing the sound again.
This behavior might be surprising? Should we do something different?
### Should mutations to `PlaybackSettings` be applied to the audio sink?
We currently do not do that. `PlaybackSettings` is just for the initial
settings when the sound starts playing. This is clearly documented.
Do we want to keep this behavior, or do we want to allow users to use
`PlaybackSettings` instead of `AudioSink`/`SpatialAudioSink` to control
sounds during playback too?
I think I prefer for them to be kept separate. It is not a bad mental
model once you understand it, and it is documented.
### Should `AudioSink` and `SpatialAudioSink` be unified into a single
component type?
They provide a similar API (via the `AudioSinkPlayback` trait) and it
might be annoying for users to have to deal with both of them. The
unification could be done using an enum that is matched on internally by
the methods. Spatial audio has extra features, so this might make it
harder to access. I think we shouldn't.
### Automatic synchronization of spatial sound properties from
Transforms?
Should Bevy automatically apply changes to Transforms to spatial audio
entities? How do we distinguish between listener and emitter? Which one
does the transform represent? Where should the other one come from?
Alternatively, leave this problem for now, and address it in a future
PR. Or do nothing, and let users deal with it, as shown in the
`spatial_audio_2d` and `spatial_audio_3d` examples.
---
## Changelog
Added:
- `AudioBundle`/`SpatialAudioBundle`, add them to entities to play
sounds.
Removed:
- The `Audio` resource.
- `AudioOutput` is no longer `pub`.
Changed:
- `AudioSink`, `SpatialAudioSink` are now components instead of assets.
## Migration Guide
// TODO: write a more detailed migration guide, after the "unsolved
questions" are answered and this PR is finalized.
Before:
```rust
/// Need to store handles somewhere
#[derive(Resource)]
struct MyMusic {
sink: Handle<AudioSink>,
}
fn play_music(
asset_server: Res<AssetServer>,
audio: Res<Audio>,
audio_sinks: Res<Assets<AudioSink>>,
mut commands: Commands,
) {
let weak_handle = audio.play_with_settings(
asset_server.load("music.ogg"),
PlaybackSettings::LOOP.with_volume(0.5),
);
// upgrade to strong handle and store it
commands.insert_resource(MyMusic {
sink: audio_sinks.get_handle(weak_handle),
});
}
fn toggle_pause_music(
audio_sinks: Res<Assets<AudioSink>>,
mymusic: Option<Res<MyMusic>>,
) {
if let Some(mymusic) = &mymusic {
if let Some(sink) = audio_sinks.get(&mymusic.sink) {
sink.toggle();
}
}
}
```
Now:
```rust
/// Marker component for our music entity
#[derive(Component)]
struct MyMusic;
fn play_music(
mut commands: Commands,
asset_server: Res<AssetServer>,
) {
commands.spawn((
AudioBundle::from_audio_source(asset_server.load("music.ogg"))
.with_settings(PlaybackSettings::LOOP.with_volume(0.5)),
MyMusic,
));
}
fn toggle_pause_music(
// `AudioSink` will be inserted by Bevy when the audio starts playing
query_music: Query<&AudioSink, With<MyMusic>>,
) {
if let Ok(sink) = query.get_single() {
sink.toggle();
}
}
```
|
||
|
Gino Valente
|
d96933ad9c
|
bevy_scene: Add SceneFilter (#6793)
# Objective
Currently, `DynamicScene`s extract all components listed in the given
(or the world's) type registry. This acts as a quasi-filter of sorts.
However, it can be troublesome to use effectively and lacks decent
control.
For example, say you need to serialize only the following component over
the network:
```rust
#[derive(Reflect, Component, Default)]
#[reflect(Component)]
struct NPC {
name: Option<String>
}
```
To do this, you'd need to:
1. Create a new `AppTypeRegistry`
2. Register `NPC`
3. Register `Option<String>`
If we skip Step 3, then the entire scene might fail to serialize as
`Option<String>` requires registration.
Not only is this annoying and easy to forget, but it can leave users
with an impossible task: serializing a third-party type that contains
private types.
Generally, the third-party crate will register their private types
within a plugin so the user doesn't need to do it themselves. However,
this means we are now unable to serialize _just_ that type— we're forced
to allow everything!
## Solution
Add the `SceneFilter` enum for filtering components to extract.
This filter can be used to optionally allow or deny entire sets of
components/resources. With the `DynamicSceneBuilder`, users have more
control over how their `DynamicScene`s are built.
To only serialize a subset of components, use the `allow` method:
```rust
let scene = builder
.allow::<ComponentA>()
.allow::<ComponentB>()
.extract_entity(entity)
.build();
```
To serialize everything _but_ a subset of components, use the `deny`
method:
```rust
let scene = builder
.deny::<ComponentA>()
.deny::<ComponentB>()
.extract_entity(entity)
.build();
```
Or create a custom filter:
```rust
let components = HashSet::from([type_id]);
let filter = SceneFilter::Allowlist(components);
// let filter = SceneFilter::Denylist(components);
let scene = builder
.with_filter(Some(filter))
.extract_entity(entity)
.build();
```
Similar operations exist for resources:
<details>
<summary>View Resource Methods</summary>
To only serialize a subset of resources, use the `allow_resource`
method:
```rust
let scene = builder
.allow_resource::<ResourceA>()
.extract_resources()
.build();
```
To serialize everything _but_ a subset of resources, use the
`deny_resource` method:
```rust
let scene = builder
.deny_resource::<ResourceA>()
.extract_resources()
.build();
```
Or create a custom filter:
```rust
let resources = HashSet::from([type_id]);
let filter = SceneFilter::Allowlist(resources);
// let filter = SceneFilter::Denylist(resources);
let scene = builder
.with_resource_filter(Some(filter))
.extract_resources()
.build();
```
</details>
### Open Questions
- [x] ~~`allow` and `deny` are mutually exclusive. Currently, they
overwrite each other. Should this instead be a panic?~~ Took @soqb's
suggestion and made it so that the opposing method simply removes that
type from the list.
- [x] ~~`DynamicSceneBuilder` extracts entity data as soon as
`extract_entity`/`extract_entities` is called. Should this behavior
instead be moved to the `build` method to prevent ordering mixups (e.g.
`.allow::<Foo>().extract_entity(entity)` vs
`.extract_entity(entity).allow::<Foo>()`)? The tradeoff would be
iterating over the given entities twice: once at extraction and again at
build.~~ Based on the feedback from @Testare it sounds like it might be
better to just keep the current functionality (if anything we can open a
separate PR that adds deferred methods for extraction, so the
choice/performance hit is up to the user).
- [ ] An alternative might be to remove the filter from
`DynamicSceneBuilder` and have it as a separate parameter to the
extraction methods (either in the existing ones or as added
`extract_entity_with_filter`-type methods). Is this preferable?
- [x] ~~Should we include constructors that include common types to
allow/deny? For example, a `SceneFilter::standard_allowlist` that
includes things like `Parent` and `Children`?~~ Consensus suggests we
should. I may split this out into a followup PR, though.
- [x] ~~Should we add the ability to remove types from the filter
regardless of whether an allowlist or denylist (e.g.
`filter.remove::<Foo>()`)?~~ See the first list item
- [x] ~~Should `SceneFilter` be an enum? Would it make more sense as a
struct that contains an `is_denylist` boolean?~~ With the added
`SceneFilter::None` state (replacing the need to wrap in an `Option` or
rely on an empty `Denylist`), it seems an enum is better suited now
- [x] ~~Bikeshed: Do we like the naming convention? Should we instead
use `include`/`exclude` terminology?~~ Sounds like we're sticking with
`allow`/`deny`!
- [x] ~~Does this feature need a new example? Do we simply include it in
the existing one (maybe even as a comment?)? Should this be done in a
followup PR instead?~~ Example will be added in a followup PR
### Followup Tasks
- [ ] Add a dedicated `SceneFilter` example
- [ ] Possibly add default types to the filter (e.g. deny things like
`ComputedVisibility`, allow `Parent`, etc)
---
## Changelog
- Added the `SceneFilter` enum for filtering components and resources
when building a `DynamicScene`
- Added methods:
- `DynamicSceneBuilder::with_filter`
- `DynamicSceneBuilder::allow`
- `DynamicSceneBuilder::deny`
- `DynamicSceneBuilder::allow_all`
- `DynamicSceneBuilder::deny_all`
- `DynamicSceneBuilder::with_resource_filter`
- `DynamicSceneBuilder::allow_resource`
- `DynamicSceneBuilder::deny_resource`
- `DynamicSceneBuilder::allow_all_resources`
- `DynamicSceneBuilder::deny_all_resources`
- Removed methods:
- `DynamicSceneBuilder::from_world_with_type_registry`
- `DynamicScene::from_scene` and `DynamicScene::from_world` no longer
require an `AppTypeRegistry` reference
## Migration Guide
- `DynamicScene::from_scene` and `DynamicScene::from_world` no longer
require an `AppTypeRegistry` reference:
```rust
// OLD
let registry = world.resource::<AppTypeRegistry>();
let dynamic_scene = DynamicScene::from_world(&world, registry);
// let dynamic_scene = DynamicScene::from_scene(&scene, registry);
// NEW
let dynamic_scene = DynamicScene::from_world(&world);
// let dynamic_scene = DynamicScene::from_scene(&scene);
```
- Removed `DynamicSceneBuilder::from_world_with_type_registry`. Now the
registry is automatically taken from the given world:
```rust
// OLD
let registry = world.resource::<AppTypeRegistry>();
let builder = DynamicSceneBuilder::from_world_with_type_registry(&world,
registry);
// NEW
let builder = DynamicSceneBuilder::from_world(&world);
```
|
||
|
ickshonpe
|
9655acebb6
|
Divide by UiScale when converting UI coordinates from physical to logical (#8720)
# Objective
After the UI layout is computed when the coordinates are converted back
from physical coordinates to logical coordinates the `UiScale` is
ignored. This results in a confusing situation where we have two
different systems of logical coordinates.
Example:
```rust
use bevy::prelude::*;
fn main() {
App::new()
.add_plugins(DefaultPlugins)
.add_systems(Startup, setup)
.add_systems(Update, update)
.run();
}
fn setup(mut commands: Commands, mut ui_scale: ResMut<UiScale>) {
ui_scale.scale = 4.;
commands.spawn(Camera2dBundle::default());
commands.spawn(NodeBundle {
style: Style {
align_items: AlignItems::Center,
justify_content: JustifyContent::Center,
width: Val::Percent(100.),
..Default::default()
},
..Default::default()
})
.with_children(|builder| {
builder.spawn(NodeBundle {
style: Style {
width: Val::Px(100.),
height: Val::Px(100.),
..Default::default()
},
background_color: Color::MAROON.into(),
..Default::default()
}).with_children(|builder| {
builder.spawn(TextBundle::from_section("", TextStyle::default());
});
});
}
fn update(
mut text_query: Query<(&mut Text, &Parent)>,
node_query: Query<Ref<Node>>,
) {
for (mut text, parent) in text_query.iter_mut() {
let node = node_query.get(parent.get()).unwrap();
if node.is_changed() {
text.sections[0].value = format!("size: {}", node.size());
}
}
}
```
result:
We asked for a 100x100 UI node but the Node's size is multiplied by the
value of `UiScale` to give a logical size of 400x400.
## Solution
Divide the output physical coordinates by `UiScale` in
`ui_layout_system` and multiply the logical viewport size by `UiScale`
when creating the projection matrix for the UI's `ExtractedView` in
`extract_default_ui_camera_view`.
---
## Changelog
* The UI layout's physical coordinates are divided by both the window
scale factor and `UiScale` when converting them back to logical
coordinates. The logical size of Ui nodes now matches the values given
to their size constraints.
* Multiply the logical viewport size by `UiScale` before creating the
projection matrix for the UI's `ExtractedView` in
`extract_default_ui_camera_view`.
* In `ui_focus_system` the cursor position returned from `Window` is
divided by `UiScale`.
* Added a scale factor parameter to `Node::physical_size` and
`Node::physical_rect`.
* The example `viewport_debug` now uses a `UiScale` of 2. to ensure that
viewport coordinates are working correctly with a non-unit `UiScale`.
## Migration Guide
Physical UI coordinates are now divided by both the `UiScale` and the
window's scale factor to compute the logical sizes and positions of UI
nodes.
This ensures that UI Node size and position values, held by the `Node`
and `GlobalTransform` components, conform to the same logical coordinate
system as the style constraints from which they are derived,
irrespective of the current `scale_factor` and `UiScale`.
---------
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
|
||
|
Niklas Eicker
|
b61397e32b
|
Reduce android example APK size (#8932)
# Objective The current mobile example produces an APK of 1.5 Gb. - Running the example on a real device takes significant time (around one minute just to copy the file over USB to my phone). - Default virtual devices in Android studio run out of space after the first install. This can of course be solved/configured, but it causes unnecessary friction. - One impression could be, that Bevy produces bloated APKs. 1.5Gb is even double the size of debug builds for desktop examples. ## Solution - Strip the debug symbols of the shared libraries before they are copied to the APK APK size after this change: 200Mb Copy time on my machine: ~8s ## Considered alternative APKs built in release mode are only 50Mb in size, but require setting up signing for the profile and compile longer. |
||
|
Anby
|
7f1d084b71
|
Rename Interaction::Clicked -> Interaction::Pressed (#8989) (#9027)
# Objective - Fixes #8989 ## Solution - Renamed Interaction::Clicked -> Interaction::Pressed - Minor changes to comments to keep clarity of terms ## Migration Guide - Rename all instances of Interaction::Clicked -> Interaction::Pressed |
||
|
ickshonpe
|
a3ab507cd4
|
many_buttons with bordered buttons (#9004)
# Objective Adds a border to each button. The borders can be disabled with the "no-borders" command line argument. |
||
|
Nicola Papale
|
fd32c6f0ec
|
Simplify setup_scene_once_loaded in animated_fox (#8999)
# Objective The setup code in `animated_fox` uses a `done` boolean to avoid running the `play` logic repetitively. It is a common pattern, but it just work with exactly one fox, and misses an even more common pattern. When a user modifies the code to try it with several foxes, they are confused as to why it doesn't work (#8996). ## Solution The more common pattern is to use `Added<AnimationPlayer>` as a query filter. This both reduces complexity and naturally extend the setup code to handle several foxes, added at any time. |
||
|
Gino Valente
|
aeeb20ec4c
|
bevy_reflect: FromReflect Ergonomics Implementation (#6056)
# Objective **This implementation is based on https://github.com/bevyengine/rfcs/pull/59.** --- Resolves #4597 Full details and motivation can be found in the RFC, but here's a brief summary. `FromReflect` is a very powerful and important trait within the reflection API. It allows Dynamic types (e.g., `DynamicList`, etc.) to be formed into Real ones (e.g., `Vec<i32>`, etc.). This mainly comes into play concerning deserialization, where the reflection deserializers both return a `Box<dyn Reflect>` that almost always contain one of these Dynamic representations of a Real type. To convert this to our Real type, we need to use `FromReflect`. It also sneaks up in other ways. For example, it's a required bound for `T` in `Vec<T>` so that `Vec<T>` as a whole can be made `FromReflect`. It's also required by all fields of an enum as it's used as part of the `Reflect::apply` implementation. So in other words, much like `GetTypeRegistration` and `Typed`, it is very much a core reflection trait. The problem is that it is not currently treated like a core trait and is not automatically derived alongside `Reflect`. This makes using it a bit cumbersome and easy to forget. ## Solution Automatically derive `FromReflect` when deriving `Reflect`. Users can then choose to opt-out if needed using the `#[reflect(from_reflect = false)]` attribute. ```rust #[derive(Reflect)] struct Foo; #[derive(Reflect)] #[reflect(from_reflect = false)] struct Bar; fn test<T: FromReflect>(value: T) {} test(Foo); // <-- OK test(Bar); // <-- Panic! Bar does not implement trait `FromReflect` ``` #### `ReflectFromReflect` This PR also automatically adds the `ReflectFromReflect` (introduced in #6245) registration to the derived `GetTypeRegistration` impl— if the type hasn't opted out of `FromReflect` of course. <details> <summary><h4>Improved Deserialization</h4></summary> > **Warning** > This section includes changes that have since been descoped from this PR. They will likely be implemented again in a followup PR. I am mainly leaving these details in for archival purposes, as well as for reference when implementing this logic again. And since we can do all the above, we might as well improve deserialization. We can now choose to deserialize into a Dynamic type or automatically convert it using `FromReflect` under the hood. `[Un]TypedReflectDeserializer::new` will now perform the conversion and return the `Box`'d Real type. `[Un]TypedReflectDeserializer::new_dynamic` will work like what we have now and simply return the `Box`'d Dynamic type. ```rust // Returns the Real type let reflect_deserializer = UntypedReflectDeserializer::new(®istry); let mut deserializer = ron:🇩🇪:Deserializer::from_str(input)?; let output: SomeStruct = reflect_deserializer.deserialize(&mut deserializer)?.take()?; // Returns the Dynamic type let reflect_deserializer = UntypedReflectDeserializer::new_dynamic(®istry); let mut deserializer = ron:🇩🇪:Deserializer::from_str(input)?; let output: DynamicStruct = reflect_deserializer.deserialize(&mut deserializer)?.take()?; ``` </details> --- ## Changelog * `FromReflect` is now automatically derived within the `Reflect` derive macro * This includes auto-registering `ReflectFromReflect` in the derived `GetTypeRegistration` impl * ~~Renamed `TypedReflectDeserializer::new` and `UntypedReflectDeserializer::new` to `TypedReflectDeserializer::new_dynamic` and `UntypedReflectDeserializer::new_dynamic`, respectively~~ **Descoped** * ~~Changed `TypedReflectDeserializer::new` and `UntypedReflectDeserializer::new` to automatically convert the deserialized output using `FromReflect`~~ **Descoped** ## Migration Guide * `FromReflect` is now automatically derived within the `Reflect` derive macro. Items with both derives will need to remove the `FromReflect` one. ```rust // OLD #[derive(Reflect, FromReflect)] struct Foo; // NEW #[derive(Reflect)] struct Foo; ``` If using a manual implementation of `FromReflect` and the `Reflect` derive, users will need to opt-out of the automatic implementation. ```rust // OLD #[derive(Reflect)] struct Foo; impl FromReflect for Foo {/* ... */} // NEW #[derive(Reflect)] #[reflect(from_reflect = false)] struct Foo; impl FromReflect for Foo {/* ... */} ``` <details> <summary><h4>Removed Migrations</h4></summary> > **Warning** > This section includes changes that have since been descoped from this PR. They will likely be implemented again in a followup PR. I am mainly leaving these details in for archival purposes, as well as for reference when implementing this logic again. * The reflect deserializers now perform a `FromReflect` conversion internally. The expected output of `TypedReflectDeserializer::new` and `UntypedReflectDeserializer::new` is no longer a Dynamic (e.g., `DynamicList`), but its Real counterpart (e.g., `Vec<i32>`). ```rust let reflect_deserializer = UntypedReflectDeserializer::new_dynamic(®istry); let mut deserializer = ron:🇩🇪:Deserializer::from_str(input)?; // OLD let output: DynamicStruct = reflect_deserializer.deserialize(&mut deserializer)?.take()?; // NEW let output: SomeStruct = reflect_deserializer.deserialize(&mut deserializer)?.take()?; ``` Alternatively, if this behavior isn't desired, use the `TypedReflectDeserializer::new_dynamic` and `UntypedReflectDeserializer::new_dynamic` methods instead: ```rust // OLD let reflect_deserializer = UntypedReflectDeserializer::new(®istry); // NEW let reflect_deserializer = UntypedReflectDeserializer::new_dynamic(®istry); ``` </details> --------- Co-authored-by: Carter Anderson <mcanders1@gmail.com> |
||
|
robtfm
|
10f5c92068
|
improve shader import model (#5703)
# Objective operate on naga IR directly to improve handling of shader modules. - give codespan reporting into imported modules - allow glsl to be used from wgsl and vice-versa the ultimate objective is to make it possible to - provide user hooks for core shader functions (to modify light behaviour within the standard pbr pipeline, for example) - make automatic binding slot allocation possible but ... since this is already big, adds some value and (i think) is at feature parity with the existing code, i wanted to push this now. ## Solution i made a crate called naga_oil (https://github.com/robtfm/naga_oil - unpublished for now, could be part of bevy) which manages modules by - building each module independantly to naga IR - creating "header" files for each supported language, which are used to build dependent modules/shaders - make final shaders by combining the shader IR with the IR for imported modules then integrated this into bevy, replacing some of the existing shader processing stuff. also reworked examples to reflect this. ## Migration Guide shaders that don't use `#import` directives should work without changes. the most notable user-facing difference is that imported functions/variables/etc need to be qualified at point of use, and there's no "leakage" of visible stuff into your shader scope from the imports of your imports, so if you used things imported by your imports, you now need to import them directly and qualify them. the current strategy of including/'spreading' `mesh_vertex_output` directly into a struct doesn't work any more, so these need to be modified as per the examples (e.g. color_material.wgsl, or many others). mesh data is assumed to be in bindgroup 2 by default, if mesh data is bound into bindgroup 1 instead then the shader def `MESH_BINDGROUP_1` needs to be added to the pipeline shader_defs. |
||
|
François
|
8fa94a0a0d
|
blend_modes example: fix label position (#8454)
# Objective - Labels are not correctly placed <img width="1392" alt="Screenshot 2023-04-22 at 00 12 54" src="https://user-images.githubusercontent.com/8672791/233742996-0189b3c2-ea6b-4f3f-b2e8-68fdbf74f52f.png"> ## Solution - Set a width in the UI so that text doesn't try to wrap <img width="1392" alt="Screenshot 2023-04-22 at 00 13 04" src="https://user-images.githubusercontent.com/8672791/233743064-8d6045e5-3936-4c22-be07-ac618399c093.png"> |
||
|
ickshonpe
|
aeea4b0344
|
NoWrap Text feature (#8947)
# Objective In Bevy 10.1 and before, the only way to enable text wrapping was to set a local `Val::Px` width constraint on the text node itself. `Val::Percent` constraints and constraints on the text node's ancestors did nothing. #7779 fixed those problems. But perversely displaying unwrapped text is really difficult now, and requires users to nest each `TextBundle` in a `NodeBundle` and apply `min_width` and `max_width` constraints. Some constructions may even need more than one layer of nesting. I've seen several people already who have really struggled with this when porting their projects to main in advance of 0.11. ## Solution Add a `NoWrap` variant to the `BreakLineOn` enum. If `NoWrap` is set, ignore any constraints on the width for the text and call `TextPipeline::queue_text` with a width bound of `f32::INFINITY`. --- ## Changelog * Added a `NoWrap` variant to the `BreakLineOn` enum. * If `NoWrap` is set, any constraints on the width for the text are ignored and `TextPipeline::queue_text` is called with a width bound of `f32::INFINITY`. * Changed the `size` field of `FixedMeasure` to `pub`. This shouldn't have been private, it was always intended to have `pub` visibility. * Added a `with_no_wrap` method to `TextBundle`. ## Migration Guide `bevy_text::text::BreakLineOn` has a new variant `NoWrap` that disables text wrapping for the `Text`. Text wrapping can also be disabled using the `with_no_wrap` method of `TextBundle`. |
||
|
Thierry Berger
|
469a19c290
|
fix example grid (#8940)
`Style` flattened `size`, `min_size` and `max_size` to its root struct, causing compilation errors. I uncommented the code to avoid further silent error not caught by CI, but hid the view to keep the same behaviour. |
||
|
Adam Kobzan
|
75c6641b41
|
Add example to demonstrate manual generation and UV mapping of 3D mesh (generate_custom_mesh) solve #4922 (#8909)
# Objective - Fixes #4922 ## Solution - Add an example that maps a custom texture on a 3D mesh. --- ## Changelog > Added the texture itself (confirmed with mod on discord before it should be ok) to the assets folder, added to the README and Cargo.toml. --------- Co-authored-by: Nicola Papale <nicopap@users.noreply.github.com> Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Sélène Amanita <134181069+Selene-Amanita@users.noreply.github.com> |
||
|
Nicola Papale
|
c6170d48f9
|
Add morph targets (#8158)
# Objective - Add morph targets to `bevy_pbr` (closes #5756) & load them from glTF - Supersedes #3722 - Fixes #6814 [Morph targets][1] (also known as shape interpolation, shape keys, or blend shapes) allow animating individual vertices with fine grained controls. This is typically used for facial expressions. By specifying multiple poses as vertex offset, and providing a set of weight of each pose, it is possible to define surprisingly realistic transitions between poses. Blending between multiple poses also allow composition. Morph targets are part of the [gltf standard][2] and are a feature of Unity and Unreal, and babylone.js, it is only natural to implement them in bevy. ## Solution This implementation of morph targets uses a 3d texture where each pixel is a component of an animated attribute. Each layer is a different target. We use a 2d texture for each target, because the number of attribute×components×animated vertices is expected to always exceed the maximum pixel row size limit of webGL2. It copies fairly closely the way skinning is implemented on the CPU side, while on the GPU side, the shader morph target implementation is a relatively trivial detail. We add an optional `morph_texture` to the `Mesh` struct. The `morph_texture` is built through a method that accepts an iterator over attribute buffers. The `MorphWeights` component, user-accessible, controls the blend of poses used by mesh instances (so that multiple copy of the same mesh may have different weights), all the weights are uploaded to a uniform buffer of 256 `f32`. We limit to 16 poses per mesh, and a total of 256 poses. More literature: * Old babylone.js implementation (vertex attribute-based): https://www.eternalcoding.com/dev-log-1-morph-targets/ * Babylone.js implementation (similar to ours): https://www.youtube.com/watch?v=LBPRmGgU0PE * GPU gems 3: https://developer.nvidia.com/gpugems/gpugems3/part-i-geometry/chapter-3-directx-10-blend-shapes-breaking-limits * Development discord thread https://discord.com/channels/691052431525675048/1083325980615114772 https://user-images.githubusercontent.com/26321040/231181046-3bca2ab2-d4d9-472e-8098-639f1871ce2e.mp4 https://github.com/bevyengine/bevy/assets/26321040/d2a0c544-0ef8-45cf-9f99-8c3792f5a258 ## Acknowledgements * Thanks to `storytold` for sponsoring the feature * Thanks to `superdump` and `james7132` for guidance and help figuring out stuff ## Future work - Handling of less and more attributes (eg: animated uv, animated arbitrary attributes) - Dynamic pose allocation (so that zero-weighted poses aren't uploaded to GPU for example, enables much more total poses) - Better animation API, see #8357 ---- ## Changelog - Add morph targets to bevy meshes - Support up to 64 poses per mesh of individually up to 116508 vertices, animation currently strictly limited to the position, normal and tangent attributes. - Load a morph target using `Mesh::set_morph_targets` - Add `VisitMorphTargets` and `VisitMorphAttributes` traits to `bevy_render`, this allows defining morph targets (a fairly complex and nested data structure) through iterators (ie: single copy instead of passing around buffers), see documentation of those traits for details - Add `MorphWeights` component exported by `bevy_render` - `MorphWeights` control mesh's morph target weights, blending between various poses defined as morph targets. - `MorphWeights` are directly inherited by direct children (single level of hierarchy) of an entity. This allows controlling several mesh primitives through a unique entity _as per GLTF spec_. - Add `MorphTargetNames` component, naming each indices of loaded morph targets. - Load morph targets weights and buffers in `bevy_gltf` - handle morph targets animations in `bevy_animation` (previously, it was a `warn!` log) - Add the `MorphStressTest.gltf` asset for morph targets testing, taken from the glTF samples repo, CC0. - Add morph target manipulation to `scene_viewer` - Separate the animation code in `scene_viewer` from the rest of the code, reducing `#[cfg(feature)]` noise - Add the `morph_targets.rs` example to show off how to manipulate morph targets, loading `MorpStressTest.gltf` ## Migration Guide - (very specialized, unlikely to be touched by 3rd parties) - `MeshPipeline` now has a single `mesh_layouts` field rather than separate `mesh_layout` and `skinned_mesh_layout` fields. You should handle all possible mesh bind group layouts in your implementation - You should also handle properly the new `MORPH_TARGETS` shader def and mesh pipeline key. A new function is exposed to make this easier: `setup_moprh_and_skinning_defs` - The `MeshBindGroup` is now `MeshBindGroups`, cached bind groups are now accessed through the `get` method. [1]: https://en.wikipedia.org/wiki/Morph_target_animation [2]: https://registry.khronos.org/glTF/specs/2.0/glTF-2.0.html#morph-targets --------- Co-authored-by: François <mockersf@gmail.com> Co-authored-by: Carter Anderson <mcanders1@gmail.com> |
||
|
Edgar Geier
|
f18f28874a
|
Allow tuples and single plugins in add_plugins, deprecate add_plugin (#8097)
# Objective - Better consistency with `add_systems`. - Deprecating `add_plugin` in favor of a more powerful `add_plugins`. - Allow passing `Plugin` to `add_plugins`. - Allow passing tuples to `add_plugins`. ## Solution - `App::add_plugins` now takes an `impl Plugins` parameter. - `App::add_plugin` is deprecated. - `Plugins` is a new sealed trait that is only implemented for `Plugin`, `PluginGroup` and tuples over `Plugins`. - All examples, benchmarks and tests are changed to use `add_plugins`, using tuples where appropriate. --- ## Changelog ### Changed - `App::add_plugins` now accepts all types that implement `Plugins`, which is implemented for: - Types that implement `Plugin`. - Types that implement `PluginGroup`. - Tuples (up to 16 elements) over types that implement `Plugins`. - Deprecated `App::add_plugin` in favor of `App::add_plugins`. ## Migration Guide - Replace `app.add_plugin(plugin)` calls with `app.add_plugins(plugin)`. --------- Co-authored-by: Carter Anderson <mcanders1@gmail.com> |
||
|
ickshonpe
|
50c50cdcb6
|
UI Display and Visibility Example (#7629)
# Objective An example demonstrating how Display and Visibility work in Bevy UI. fixes #5380 related #5368  ## Changelog * Added the example `flex_display.rs`. |
||
|
Duncan
|
64405469a5
|
Expand FallbackImage to include a GpuImage for each possible TextureViewDimension (#6974)
# Objective Fixes #6920 ## Solution From the issue discussion: > From looking at the `AsBindGroup` derive macro implementation, the fallback image's `TextureView` is used when the binding's `Option<Handle<Image>>` is `None`. Because this relies on already having a view that matches the desired binding dimensions, I think the solution will require creating a separate `GpuImage` for each possible `TextureViewDimension`. --- ## Changelog Users can now rely on `FallbackImage` to work with a texture binding of any dimension. |
||
|
mwbryant
|
8b5bf42c28
|
UI texture atlas support (#8822)
# Objective This adds support for using texture atlas sprites in UI. From discussions today in the ui-dev discord it seems this is a much wanted feature. This was previously attempted in #5070 by @ManevilleF however that was blocked #5103. This work can be easily modified to support #5103 changes after that merges. ## Solution I created a new UI bundle that reuses the existing texture atlas infrastructure. I create a new atlas image component to prevent it from being drawn by the existing non-UI systems and to remove unused parameters. In extract I added new system to calculate the required values for the texture atlas image, this extracts into the same resource as the existing UI Image and Text components. This should have minimal performance impact because if texture atlas is not present then the exact same code path is followed. Also there should be no unintended behavior changes because without the new components the existing systems write the extract same resulting data. I also added an example showing the sprite working and a system to advance the animation on space bar presses. Naming is hard and I would accept any feedback on the bundle name! --- ## Changelog > Added TextureAtlasImageBundle --------- Co-authored-by: ickshonpe <david.curthoys@googlemail.com> |
||
|
JMS55
|
3959908b6b
|
Small doc fix (#8889) | ||
|
JMS55
|
af9c945f40
|
Screen Space Ambient Occlusion (SSAO) MVP (#7402)
# Objective
- Add Screen space ambient occlusion (SSAO). SSAO approximates
small-scale, local occlusion of _indirect_ diffuse light between
objects. SSAO does not apply to direct lighting, such as point or
directional lights.
- This darkens creases, e.g. on staircases, and gives nice contact
shadows where objects meet, giving entities a more "grounded" feel.
- Closes https://github.com/bevyengine/bevy/issues/3632.
## Solution
- Implement the GTAO algorithm.
-
https://www.activision.com/cdn/research/Practical_Real_Time_Strategies_for_Accurate_Indirect_Occlusion_NEW%20VERSION_COLOR.pdf
-
https://blog.selfshadow.com/publications/s2016-shading-course/activision/s2016_pbs_activision_occlusion.pdf
- Source code heavily based on [Intel's
XeGTAO](
|
||
|
Jim Eckerlein
|
13f50c7a53
|
Rename keys like LAlt to AltLeft (#8792)
# Objective The [`KeyCode`](https://github.com/bevyengine/bevy/blob/main/crates/bevy_input/src/keyboard.rs#L86) enum cases `LWin` and `RWin` are too opinionated because they are also assigned meaning by non-Windows operating systems. macOS calls the keys completely different. ## Solution Match [winits approach](https://github.com/rust-windowing/winit/blob/master/src/keyboard.rs#L1635) naming convention. --- ## Migration Guide Migrate by replacing: - `LAlt` → `AltLeft` - `RAlt` → `AltRight` - `LBracket` → `BracketLeft` - `RBracket` → `BracketRight` - `LControl` → `ControlLeft` - `RControl` → `ControlRight` - `LShift` → `ShiftLeft` - `RShift` → `ShiftRight` - `LWin` → `SuperLeft` - `RWin` → `SuperRight` |
||
|
ickshonpe
|
f7aa83a247
|
Ui Node Borders (#7795)
# Objective Implement borders for UI nodes. Relevant discussion: #7785 Related: #5924, #3991 <img width="283" alt="borders" src="https://user-images.githubusercontent.com/27962798/220968899-7661d5ec-6f5b-4b0f-af29-bf9af02259b5.PNG"> ## Solution Add an extraction function to draw the borders. --- Can only do one colour rectangular borders due to the limitations of the Bevy UI renderer. Maybe it can be combined with #3991 eventually to add curved border support. ## Changelog * Added a component `BorderColor`. * Added the `extract_uinode_borders` system to the UI Render App. * Added the UI example `borders` --------- Co-authored-by: Nico Burns <nico@nicoburns.com> |
||
|
ira
|
001b3eb97c
|
Instanced line rendering for gizmos based on bevy_polyline (#8427)
# Objective Adopt code from [bevy_polyline](https://github.com/ForesightMiningSoftwareCorporation/bevy_polyline) for gizmo line-rendering. This adds configurable width and perspective rendering for the lines. Many thanks to @mtsr for the initial work on bevy_polyline. Thanks to @aevyrie for maintaining it, @nicopap for adding the depth_bias feature and the other [contributors](https://github.com/ForesightMiningSoftwareCorporation/bevy_polyline/graphs/contributors) for squashing bugs and keeping bevy_polyline up-to-date. #### Before  #### After - with line perspective  Line perspective is not on by default because with perspective there is no default line width that works for every scene. <details><summary>After - without line perspective</summary> <p>  </p> </details> Somewhat unexpectedly, the performance is improved with this PR. At 200,000 lines in many_gizmos I get ~110 FPS on main and ~200 FPS with this PR. I'm guessing this is a CPU side difference as I would expect the rendering technique to be more expensive on the GPU to some extent, but I am not entirely sure. --------- Co-authored-by: Jonas Matser <github@jonasmatser.nl> Co-authored-by: Aevyrie <aevyrie@gmail.com> Co-authored-by: Nicola Papale <nico@nicopap.ch> Co-authored-by: Nicola Papale <nicopap@users.noreply.github.com> |
