648bd3d796
91 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Joona Aalto
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7b1c9f192e
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Adopt consistent FooSystems naming convention for system sets (#18900)
# Objective Fixes a part of #14274. Bevy has an incredibly inconsistent naming convention for its system sets, both internally and across the ecosystem. <img alt="System sets in Bevy" src="https://github.com/user-attachments/assets/d16e2027-793f-4ba4-9cc9-e780b14a5a1b" width="450" /> *Names of public system set types in Bevy* Most Bevy types use a naming of `FooSystem` or just `Foo`, but there are also a few `FooSystems` and `FooSet` types. In ecosystem crates on the other hand, `FooSet` is perhaps the most commonly used name in general. Conventions being so wildly inconsistent can make it harder for users to pick names for their own types, to search for system sets on docs.rs, or to even discern which types *are* system sets. To reign in the inconsistency a bit and help unify the ecosystem, it would be good to establish a common recommended naming convention for system sets in Bevy itself, similar to how plugins are commonly suffixed with `Plugin` (ex: `TimePlugin`). By adopting a consistent naming convention in first-party Bevy, we can softly nudge ecosystem crates to follow suit (for types where it makes sense to do so). Choosing a naming convention is also relevant now, as the [`bevy_cli` recently adopted lints](https://github.com/TheBevyFlock/bevy_cli/pull/345) to enforce naming for plugins and system sets, and the recommended naming used for system sets is still a bit open. ## Which Name To Use? Now the contentious part: what naming convention should we actually adopt? This was discussed on the Bevy Discord at the end of last year, starting [here](<https://discord.com/channels/691052431525675048/692572690833473578/1310659954683936789>). `FooSet` and `FooSystems` were the clear favorites, with `FooSet` very narrowly winning an unofficial poll. However, it seems to me like the consensus was broadly moving towards `FooSystems` at the end and after the poll, with Cart ([source](https://discord.com/channels/691052431525675048/692572690833473578/1311140204974706708)) and later Alice ([source](https://discord.com/channels/691052431525675048/692572690833473578/1311092530732859533)) and also me being in favor of it. Let's do a quick pros and cons list! Of course these are just what I thought of, so take it with a grain of salt. `FooSet`: - Pro: Nice and short! - Pro: Used by many ecosystem crates. - Pro: The `Set` suffix comes directly from the trait name `SystemSet`. - Pro: Pairs nicely with existing APIs like `in_set` and `configure_sets`. - Con: `Set` by itself doesn't actually indicate that it's related to systems *at all*, apart from the implemented trait. A set of what? - Con: Is `FooSet` a set of `Foo`s or a system set related to `Foo`? Ex: `ContactSet`, `MeshSet`, `EnemySet`... `FooSystems`: - Pro: Very clearly indicates that the type represents a collection of systems. The actual core concept, system(s), is in the name. - Pro: Parallels nicely with `FooPlugins` for plugin groups. - Pro: Low risk of conflicts with other names or misunderstandings about what the type is. - Pro: In most cases, reads *very* nicely and clearly. Ex: `PhysicsSystems` and `AnimationSystems` as opposed to `PhysicsSet` and `AnimationSet`. - Pro: Easy to search for on docs.rs. - Con: Usually results in longer names. - Con: Not yet as widely used. Really the big problem with `FooSet` is that it doesn't actually describe what it is. It describes what *kind of thing* it is (a set of something), but not *what it is a set of*, unless you know the type or check its docs or implemented traits. `FooSystems` on the other hand is much more self-descriptive in this regard, at the cost of being a bit longer to type. Ultimately, in some ways it comes down to preference and how you think of system sets. Personally, I was originally in favor of `FooSet`, but have been increasingly on the side of `FooSystems`, especially after seeing what the new names would actually look like in Avian and now Bevy. I prefer it because it usually reads better, is much more clearly related to groups of systems than `FooSet`, and overall *feels* more correct and natural to me in the long term. For these reasons, and because Alice and Cart also seemed to share a preference for it when it was previously being discussed, I propose that we adopt a `FooSystems` naming convention where applicable. ## Solution Rename Bevy's system set types to use a consistent `FooSet` naming where applicable. - `AccessibilitySystem` → `AccessibilitySystems` - `GizmoRenderSystem` → `GizmoRenderSystems` - `PickSet` → `PickingSystems` - `RunFixedMainLoopSystem` → `RunFixedMainLoopSystems` - `TransformSystem` → `TransformSystems` - `RemoteSet` → `RemoteSystems` - `RenderSet` → `RenderSystems` - `SpriteSystem` → `SpriteSystems` - `StateTransitionSteps` → `StateTransitionSystems` - `RenderUiSystem` → `RenderUiSystems` - `UiSystem` → `UiSystems` - `Animation` → `AnimationSystems` - `AssetEvents` → `AssetEventSystems` - `TrackAssets` → `AssetTrackingSystems` - `UpdateGizmoMeshes` → `GizmoMeshSystems` - `InputSystem` → `InputSystems` - `InputFocusSet` → `InputFocusSystems` - `ExtractMaterialsSet` → `MaterialExtractionSystems` - `ExtractMeshesSet` → `MeshExtractionSystems` - `RumbleSystem` → `RumbleSystems` - `CameraUpdateSystem` → `CameraUpdateSystems` - `ExtractAssetsSet` → `AssetExtractionSystems` - `Update2dText` → `Text2dUpdateSystems` - `TimeSystem` → `TimeSystems` - `AudioPlaySet` → `AudioPlaybackSystems` - `SendEvents` → `EventSenderSystems` - `EventUpdates` → `EventUpdateSystems` A lot of the names got slightly longer, but they are also a lot more consistent, and in my opinion the majority of them read much better. For a few of the names I took the liberty of rewording things a bit; definitely open to any further naming improvements. There are still also cases where the `FooSystems` naming doesn't really make sense, and those I left alone. This primarily includes system sets like `Interned<dyn SystemSet>`, `EnterSchedules<S>`, `ExitSchedules<S>`, or `TransitionSchedules<S>`, where the type has some special purpose and semantics. ## Todo - [x] Should I keep all the old names as deprecated type aliases? I can do this, but to avoid wasting work I'd prefer to first reach consensus on whether these renames are even desired. - [x] Migration guide - [x] Release notes |
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Lucas Franca
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acd4451151
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Fix warning spam on mesh2d_manual example (#18433)
# Objective Fixes #18429 ## Solution Add syncing to the render world for the `ColoredMesh2d` component ## Testing Ran the example and it works as intended without the warning spam |
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ickshonpe
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4d8bc6161b
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Extract sprites into a Vec (#17619)
# Objective Extract sprites into a `Vec` instead of a `HashMap`. ## Solution Extract UI nodes into a `Vec` instead of an `EntityHashMap`. Add an index into the `Vec` to `Transparent2d`. Compare both the index and render entity in prepare so there aren't any collisions. ## Showcase yellow this PR, red main ``` cargo run --example many_sprites --release --features "trace_tracy" ``` `extract_sprites` <img width="452" alt="extract_sprites" src="https://github.com/user-attachments/assets/66c60406-7c2b-4367-907d-4a71d3630296" /> `queue_sprites` <img width="463" alt="queue_sprites" src="https://github.com/user-attachments/assets/54b903bd-4137-4772-9f87-e10e1e050d69" /> --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> |
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JaySpruce
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d6db78b5dd
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Replace internal uses of insert_or_spawn_batch (#18035)
## Objective `insert_or_spawn_batch` is due to be deprecated eventually (#15704), and removing uses internally will make that easier. ## Solution Replaced internal uses of `insert_or_spawn_batch` with `try_insert_batch` (non-panicking variant because `insert_or_spawn_batch` didn't panic). All of the internal uses are in rendering code. Since retained rendering was meant to get rid non-opaque entity IDs, I assume the code was just using `insert_or_spawn_batch` because `insert_batch` didn't exist and not because it actually wanted to spawn something. However, I am *not* confident in my ability to judge rendering code. |
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charlotte
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a861452d68
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Add user supplied mesh tag (#17648)
# Objective Because of mesh preprocessing, users cannot rely on `@builtin(instance_index)` in order to reference external data, as the instance index is not stable, either from frame to frame or relative to the total spawn order of mesh instances. ## Solution Add a user supplied mesh index that can be used for referencing external data when drawing instanced meshes. Closes #13373 ## Testing Benchmarked `many_cubes` showing no difference in total frame time. ## Showcase https://github.com/user-attachments/assets/80620147-aafc-4d9d-a8ee-e2149f7c8f3b --------- Co-authored-by: IceSentry <IceSentry@users.noreply.github.com> |
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Sludge
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989f547080
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Weak handle migration (#17695)
# Objective - Make use of the new `weak_handle!` macro added in https://github.com/bevyengine/bevy/pull/17384 ## Solution - Migrate bevy from `Handle::weak_from_u128` to the new `weak_handle!` macro that takes a random UUID - Deprecate `Handle::weak_from_u128`, since there are no remaining use cases that can't also be addressed by constructing the type manually ## Testing - `cargo run -p ci -- test` --- ## Migration Guide Replace `Handle::weak_from_u128` with `weak_handle!` and a random UUID. |
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Radislav Myasnikov
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94e0e1f031
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Updated the 2D examples to make them uniform (#17237)
# Objective Make the examples look more uniform and more polished. following the issue #17167 ## Solution - [x] Added a minimal UI explaining how to interact with the examples only when needed. - [x] Used the same notation for interactions ex : "Up Arrow: Move Forward \nLeft / Right Arrow: Turn" - [x] Set the color to [GRAY](https://github.com/bevyengine/bevy/pull/17237#discussion_r1907560092) when it's not visible enough - [x] Changed some colors to be easy on the eyes - [x] removed the //camera comment - [x] Unified the use of capital letters in the examples. - [x] Simplified the mesh2d_arc offset calculations. ... --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: Rob Parrett <robparrett@gmail.com> |
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Patrick Walton
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35101f3ed5
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Use multi_draw_indirect_count where available, in preparation for two-phase occlusion culling. (#17211)
This commit allows Bevy to use `multi_draw_indirect_count` for drawing meshes. The `multi_draw_indirect_count` feature works just like `multi_draw_indirect`, but it takes the number of indirect parameters from a GPU buffer rather than specifying it on the CPU. Currently, the CPU constructs the list of indirect draw parameters with the instance count for each batch set to zero, uploads the resulting buffer to the GPU, and dispatches a compute shader that bumps the instance count for each mesh that survives culling. Unfortunately, this is inefficient when we support `multi_draw_indirect_count`. Draw commands corresponding to meshes for which all instances were culled will remain present in the list when calling `multi_draw_indirect_count`, causing overhead. Proper use of `multi_draw_indirect_count` requires eliminating these empty draw commands. To address this inefficiency, this PR makes Bevy fully construct the indirect draw commands on the GPU instead of on the CPU. Instead of writing instance counts to the draw command buffer, the mesh preprocessing shader now writes them to a separate *indirect metadata buffer*. A second compute dispatch known as the *build indirect parameters* shader runs after mesh preprocessing and converts the indirect draw metadata into actual indirect draw commands for the GPU. The build indirect parameters shader operates on a batch at a time, rather than an instance at a time, and as such each thread writes only 0 or 1 indirect draw parameters, simplifying the current logic in `mesh_preprocessing`, which currently has to have special cases for the first mesh in each batch. The build indirect parameters shader emits draw commands in a tightly packed manner, enabling maximally efficient use of `multi_draw_indirect_count`. Along the way, this patch switches mesh preprocessing to dispatch one compute invocation per render phase per view, instead of dispatching one compute invocation per view. This is preparation for two-phase occlusion culling, in which we will have two mesh preprocessing stages. In that scenario, the first mesh preprocessing stage must only process opaque and alpha tested objects, so the work items must be separated into those that are opaque or alpha tested and those that aren't. Thus this PR splits out the work items into a separate buffer for each phase. As this patch rewrites so much of the mesh preprocessing infrastructure, it was simpler to just fold the change into this patch instead of deferring it to the forthcoming occlusion culling PR. Finally, this patch changes mesh preprocessing so that it runs separately for indexed and non-indexed meshes. This is because draw commands for indexed and non-indexed meshes have different sizes and layouts. *The existing code is actually broken for non-indexed meshes*, as it attempts to overlay the indirect parameters for non-indexed meshes on top of those for indexed meshes. Consequently, right now the parameters will be read incorrectly when multiple non-indexed meshes are multi-drawn together. *This is a bug fix* and, as with the change to dispatch phases separately noted above, was easiest to include in this patch as opposed to separately. ## Migration Guide * Systems that add custom phase items now need to populate the indirect drawing-related buffers. See the `specialized_mesh_pipeline` example for an example of how this is done. |
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Patrick Walton
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141b7673ab
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Key render phases off the main world view entity, not the render world view entity. (#16942)
We won't be able to retain render phases from frame to frame if the keys are unstable. It's not as simple as simply keying off the main world entity, however, because some main world entities extract to multiple render world entities. For example, directional lights extract to multiple shadow cascades, and point lights extract to one view per cubemap face. Therefore, we key off a new type, `RetainedViewEntity`, which contains the main entity plus a *subview ID*. This is part of the preparation for retained bins. --------- Co-authored-by: ickshonpe <david.curthoys@googlemail.com> |
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MichiRecRoom
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3742e621ef
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Allow clippy::too_many_arguments to lint without warnings (#17249)
# Objective Many instances of `clippy::too_many_arguments` linting happen to be on systems - functions which we don't call manually, and thus there's not much reason to worry about the argument count. ## Solution Allow `clippy::too_many_arguments` globally, and remove all lint attributes related to it. |
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Patrick Walton
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40df1ea4b6
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Remove the type parameter from check_visibility, and only invoke it once. (#16812)
Currently, `check_visibility` is parameterized over a query filter that specifies the type of potentially-visible object. This has the unfortunate side effect that we need a separate system, `mark_view_visibility_as_changed_if_necessary`, to trigger view visibility change detection. That system is quite slow because it must iterate sequentially over all entities in the scene. This PR moves the query filter from `check_visibility` to a new component, `VisibilityClass`. `VisibilityClass` stores a list of type IDs, each corresponding to one of the query filters we used to use. Because `check_visibility` is no longer specialized to the query filter at the type level, Bevy now only needs to invoke it once, leading to better performance as `check_visibility` can do change detection on the fly rather than delegating it to a separate system. This commit also has ergonomic improvements, as there's no need for applications that want to add their own custom renderable components to add specializations of the `check_visibility` system to the schedule. Instead, they only need to ensure that the `ViewVisibility` component is properly kept up to date. The recommended way to do this, and the way that's demonstrated in the `custom_phase_item` and `specialized_mesh_pipeline` examples, is to make `ViewVisibility` a required component and to add the type ID to it in a component add hook. This patch does this for `Mesh3d`, `Mesh2d`, `Sprite`, `Light`, and `Node`, which means that most app code doesn't need to change at all. Note that, although this patch has a large impact on the performance of visibility determination, it doesn't actually improve the end-to-end frame time of `many_cubes`. That's because the render world was already effectively hiding the latency from `mark_view_visibility_as_changed_if_necessary`. This patch is, however, necessary for *further* improvements to `many_cubes` performance. `many_cubes` trace before:  `many_cubes` trace after:  ## Migration Guide * `check_visibility` no longer takes a `QueryFilter`, and there's no need to add it manually to your app schedule anymore for custom rendering items. Instead, entities with custom renderable components should add the appropriate type IDs to `VisibilityClass`. See `custom_phase_item` for an example. |
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Patrick Walton
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f5de3f08fb
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Use multidraw for opaque meshes when GPU culling is in use. (#16427)
This commit adds support for *multidraw*, which is a feature that allows multiple meshes to be drawn in a single drawcall. `wgpu` currently implements multidraw on Vulkan, so this feature is only enabled there. Multiple meshes can be drawn at once if they're in the same vertex and index buffers and are otherwise placed in the same bin. (Thus, for example, at present the materials and textures must be identical, but see #16368.) Multidraw is a significant performance improvement during the draw phase because it reduces the number of rebindings, as well as the number of drawcalls. This feature is currently only enabled when GPU culling is used: i.e. when `GpuCulling` is present on a camera. Therefore, if you run for example `scene_viewer`, you will not see any performance improvements, because `scene_viewer` doesn't add the `GpuCulling` component to its camera. Additionally, the multidraw feature is only implemented for opaque 3D meshes and not for shadows or 2D meshes. I plan to make GPU culling the default and to extend the feature to shadows in the future. Also, in the future I suspect that polyfilling multidraw on APIs that don't support it will be fruitful, as even without driver-level support use of multidraw allows us to avoid expensive `wgpu` rebindings. |
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Benjamin Brienen
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40640fdf42
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Don't reëxport bevy_image from bevy_render (#16163)
# Objective Fixes #15940 ## Solution Remove the `pub use` and fix the compile errors. Make `bevy_image` available as `bevy::image`. ## Testing Feature Frenzy would be good here! Maybe I'll learn how to use it if I have some time this weekend, or maybe a reviewer can use it. ## Migration Guide Use `bevy_image` instead of `bevy_render::texture` items. --------- Co-authored-by: chompaa <antony.m.3012@gmail.com> Co-authored-by: Carter Anderson <mcanders1@gmail.com> |
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atlv
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c29e67153b
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Expose Pipeline Compilation Zero Initialize Workgroup Memory Option (#16301)
# Objective - wgpu 0.20 made workgroup vars stop being zero-init by default. this broke some applications (cough foresight cough) and now we workaround it. wgpu exposes a compilation option that zero initializes workgroup memory by default, but bevy does not expose it. ## Solution - expose the compilation option wgpu gives us ## Testing - ran examples: 3d_scene, compute_shader_game_of_life, gpu_readback, lines, specialized_mesh_pipeline. they all work - confirmed fix for our own problems --- </details> ## Migration Guide - add `zero_initialize_workgroup_memory: false,` to `ComputePipelineDescriptor` or `RenderPipelineDescriptor` structs to preserve 0.14 functionality, add `zero_initialize_workgroup_memory: true,` to restore bevy 0.13 functionality. |
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Joona Aalto
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c1a4b82762
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Revert default mesh materials (#15930)
# Objective Closes #15799. Many rendering people and maintainers are in favor of reverting default mesh materials added in #15524, especially as the migration to required component is already large and heavily breaking. ## Solution Revert default mesh materials, and adjust docs accordingly. - Remove `extract_default_materials` - Remove `clear_material_instances`, and move the logic back into `extract_mesh_materials` - Remove `HasMaterial2d` and `HasMaterial3d` - Change default material handles back to pink instead of white - 2D uses `Color::srgb(1.0, 0.0, 1.0)`, while 3D uses `Color::srgb(1.0, 0.0, 0.5)`. Not sure if this is intended. There is now no indication at all about missing materials for `Mesh2d` and `Mesh3d`. Having a mesh without a material renders nothing. ## Testing I ran `2d_shapes`, `mesh2d_manual`, and `3d_shapes`, with and without mesh material components. |
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Rob Parrett
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9dd6f42b32
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Alternative fix for mesh2d_manual example (#15883)
# Objective Fixes #15847 Alternative to #15862. Would appreciate a rendering person signaling preference for one or the other. ## Solution Partially revert the changes made to this example in #15524. Add comment explaining that the non-usage of the built-in color vertex attribute is intentional. ## Testing `cargo run --example mesh2d_manual` |
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NiseVoid
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bdd0af6bfb
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Deprecate SpatialBundle (#15830)
# Objective - Required components replace bundles, but `SpatialBundle` is yet to be deprecated ## Solution - Deprecate `SpatialBundle` - Insert `Transform` and `Visibility` instead in examples using it - In `spawn` or `insert` inserting a default `Transform` or `Visibility` with component already requiring either, remove those components from the tuple ## Testing - Did you test these changes? If so, how? Yes, I ran the examples I changed and tests - Are there any parts that need more testing? The `gamepad_viewer` and and `custom_shader_instancing` examples don't work as intended due to entirely unrelated code, didn't check main. - How can other people (reviewers) test your changes? Is there anything specific they need to know? Run examples, or just check that all spawned values are identical - If relevant, what platforms did you test these changes on, and are there any important ones you can't test? Linux, wayland trough x11 (cause that's the default feature) --- ## Migration Guide `SpatialBundle` is now deprecated, insert `Transform` and `Visibility` instead which will automatically insert all other components that were in the bundle. If you do not specify these values and any other components in your `spawn`/`insert` call already requires either of these components you can leave that one out. before: ```rust commands.spawn(SpatialBundle::default()); ``` after: ```rust commands.spawn((Transform::default(), Visibility::default()); ``` |
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charlotte
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dd812b3e49
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Type safe retained render world (#15756)
# Objective In the Render World, there are a number of collections that are derived from Main World entities and are used to drive rendering. The most notable are: - `VisibleEntities`, which is generated in the `check_visibility` system and contains visible entities for a view. - `ExtractedInstances`, which maps entity ids to asset ids. In the old model, these collections were trivially kept in sync -- any extracted phase item could look itself up because the render entity id was guaranteed to always match the corresponding main world id. After #15320, this became much more complicated, and was leading to a number of subtle bugs in the Render World. The main rendering systems, i.e. `queue_material_meshes` and `queue_material2d_meshes`, follow a similar pattern: ```rust for visible_entity in visible_entities.iter::<With<Mesh2d>>() { let Some(mesh_instance) = render_mesh_instances.get_mut(visible_entity) else { continue; }; // Look some more stuff up and specialize the pipeline... let bin_key = Opaque2dBinKey { pipeline: pipeline_id, draw_function: draw_opaque_2d, asset_id: mesh_instance.mesh_asset_id.into(), material_bind_group_id: material_2d.get_bind_group_id().0, }; opaque_phase.add( bin_key, *visible_entity, BinnedRenderPhaseType::mesh(mesh_instance.automatic_batching), ); } ``` In this case, `visible_entities` and `render_mesh_instances` are both collections that are created and keyed by Main World entity ids, and so this lookup happens to work by coincidence. However, there is a major unintentional bug here: namely, because `visible_entities` is a collection of Main World ids, the phase item being queued is created with a Main World id rather than its correct Render World id. This happens to not break mesh rendering because the render commands used for drawing meshes do not access the `ItemQuery` parameter, but demonstrates the confusion that is now possible: our UI phase items are correctly being queued with Render World ids while our meshes aren't. Additionally, this makes it very easy and error prone to use the wrong entity id to look up things like assets. For example, if instead we ignored visibility checks and queued our meshes via a query, we'd have to be extra careful to use `&MainEntity` instead of the natural `Entity`. ## Solution Make all collections that are derived from Main World data use `MainEntity` as their key, to ensure type safety and avoid accidentally looking up data with the wrong entity id: ```rust pub type MainEntityHashMap<V> = hashbrown::HashMap<MainEntity, V, EntityHash>; ``` Additionally, we make all `PhaseItem` be able to provide both their Main and Render World ids, to allow render phase implementors maximum flexibility as to what id should be used to look up data. You can think of this like tracking at the type level whether something in the Render World should use it's "primary key", i.e. entity id, or needs to use a foreign key, i.e. `MainEntity`. ## Testing ##### TODO: This will require extensive testing to make sure things didn't break! Additionally, some extraction logic has become more complicated and needs to be checked for regressions. ## Migration Guide With the advent of the retained render world, collections that contain references to `Entity` that are extracted into the render world have been changed to contain `MainEntity` in order to prevent errors where a render world entity id is used to look up an item by accident. Custom rendering code may need to be changed to query for `&MainEntity` in order to look up the correct item from such a collection. Additionally, users who implement their own extraction logic for collections of main world entity should strongly consider extracting into a different collection that uses `MainEntity` as a key. Additionally, render phases now require specifying both the `Entity` and `MainEntity` for a given `PhaseItem`. Custom render phases should ensure `MainEntity` is available when queuing a phase item. |
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Joona Aalto
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25bfa80e60
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Migrate cameras to required components (#15641)
# Objective Yet another PR for migrating stuff to required components. This time, cameras! ## Solution As per the [selected proposal](https://hackmd.io/tsYID4CGRiWxzsgawzxG_g#Combined-Proposal-1-Selected), deprecate `Camera2dBundle` and `Camera3dBundle` in favor of `Camera2d` and `Camera3d`. Adding a `Camera` without `Camera2d` or `Camera3d` now logs a warning, as suggested by Cart [on Discord](https://discord.com/channels/691052431525675048/1264881140007702558/1291506402832945273). I would personally like cameras to work a bit differently and be split into a few more components, to avoid some footguns and confusing semantics, but that is more controversial, and shouldn't block this core migration. ## Testing I ran a few 2D and 3D examples, and tried cameras with and without render graphs. --- ## Migration Guide `Camera2dBundle` and `Camera3dBundle` have been deprecated in favor of `Camera2d` and `Camera3d`. Inserting them will now also insert the other components required by them automatically. |
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Joona Aalto
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54006b107b
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Migrate meshes and materials to required components (#15524)
# Objective A big step in the migration to required components: meshes and materials! ## Solution As per the [selected proposal](https://hackmd.io/@bevy/required_components/%2Fj9-PnF-2QKK0on1KQ29UWQ): - Deprecate `MaterialMesh2dBundle`, `MaterialMeshBundle`, and `PbrBundle`. - Add `Mesh2d` and `Mesh3d` components, which wrap a `Handle<Mesh>`. - Add `MeshMaterial2d<M: Material2d>` and `MeshMaterial3d<M: Material>`, which wrap a `Handle<M>`. - Meshes *without* a mesh material should be rendered with a default material. The existence of a material is determined by `HasMaterial2d`/`HasMaterial3d`, which is required by `MeshMaterial2d`/`MeshMaterial3d`. This gets around problems with the generics. Previously: ```rust commands.spawn(MaterialMesh2dBundle { mesh: meshes.add(Circle::new(100.0)).into(), material: materials.add(Color::srgb(7.5, 0.0, 7.5)), transform: Transform::from_translation(Vec3::new(-200., 0., 0.)), ..default() }); ``` Now: ```rust commands.spawn(( Mesh2d(meshes.add(Circle::new(100.0))), MeshMaterial2d(materials.add(Color::srgb(7.5, 0.0, 7.5))), Transform::from_translation(Vec3::new(-200., 0., 0.)), )); ``` If the mesh material is missing, previously nothing was rendered. Now, it renders a white default `ColorMaterial` in 2D and a `StandardMaterial` in 3D (this can be overridden). Below, only every other entity has a material:   Why white? This is still open for discussion, but I think white makes sense for a *default* material, while *invalid* asset handles pointing to nothing should have something like a pink material to indicate that something is broken (I don't handle that in this PR yet). This is kind of a mix of Godot and Unity: Godot just renders a white material for non-existent materials, while Unity renders nothing when no materials exist, but renders pink for invalid materials. I can also change the default material to pink if that is preferable though. ## Testing I ran some 2D and 3D examples to test if anything changed visually. I have not tested all examples or features yet however. If anyone wants to test more extensively, it would be appreciated! ## Implementation Notes - The relationship between `bevy_render` and `bevy_pbr` is weird here. `bevy_render` needs `Mesh3d` for its own systems, but `bevy_pbr` has all of the material logic, and `bevy_render` doesn't depend on it. I feel like the two crates should be refactored in some way, but I think that's out of scope for this PR. - I didn't migrate meshlets to required components yet. That can probably be done in a follow-up, as this is already a huge PR. - It is becoming increasingly clear to me that we really, *really* want to disallow raw asset handles as components. They caused me a *ton* of headache here already, and it took me a long time to find every place that queried for them or inserted them directly on entities, since there were no compiler errors for it. If we don't remove the `Component` derive, I expect raw asset handles to be a *huge* footgun for users as we transition to wrapper components, especially as handles as components have been the norm so far. I personally consider this to be a blocker for 0.15: we need to migrate to wrapper components for asset handles everywhere, and remove the `Component` derive. Also see https://github.com/bevyengine/bevy/issues/14124. --- ## Migration Guide Asset handles for meshes and mesh materials must now be wrapped in the `Mesh2d` and `MeshMaterial2d` or `Mesh3d` and `MeshMaterial3d` components for 2D and 3D respectively. Raw handles as components no longer render meshes. Additionally, `MaterialMesh2dBundle`, `MaterialMeshBundle`, and `PbrBundle` have been deprecated. Instead, use the mesh and material components directly. Previously: ```rust commands.spawn(MaterialMesh2dBundle { mesh: meshes.add(Circle::new(100.0)).into(), material: materials.add(Color::srgb(7.5, 0.0, 7.5)), transform: Transform::from_translation(Vec3::new(-200., 0., 0.)), ..default() }); ``` Now: ```rust commands.spawn(( Mesh2d(meshes.add(Circle::new(100.0))), MeshMaterial2d(materials.add(Color::srgb(7.5, 0.0, 7.5))), Transform::from_translation(Vec3::new(-200., 0., 0.)), )); ``` If the mesh material is missing, a white default material is now used. Previously, nothing was rendered if the material was missing. The `WithMesh2d` and `WithMesh3d` query filter type aliases have also been removed. Simply use `With<Mesh2d>` or `With<Mesh3d>`. --------- Co-authored-by: Tim Blackbird <justthecooldude@gmail.com> Co-authored-by: Carter Anderson <mcanders1@gmail.com> |
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Benjamin Brienen
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29508f065f
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Fix floating point math (#15239)
# Objective - Fixes #15236 ## Solution - Use bevy_math::ops instead of std floating point operations. ## Testing - Did you test these changes? If so, how? Unit tests and `cargo run -p ci -- test` - How can other people (reviewers) test your changes? Is there anything specific they need to know? Execute `cargo run -p ci -- test` on Windows. - If relevant, what platforms did you test these changes on, and are there any important ones you can't test? Windows ## Migration Guide - Not a breaking change - Projects should use bevy math where applicable --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: IQuick 143 <IQuick143cz@gmail.com> Co-authored-by: Joona Aalto <jondolf.dev@gmail.com> |
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Christian Hughes
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e939d6c33f
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Remove remnant EntityHash and related types from bevy_utils (#15039)
# Objective `EntityHash` and related types were moved from `bevy_utils` to `bevy_ecs` in #11498, but seemed to have been accidentally reintroduced a week later in #11707. ## Solution Remove the old leftover code. --- ## Migration Guide - Uses of `bevy::utils::{EntityHash, EntityHasher, EntityHashMap, EntityHashSet}` now have to be imported from `bevy::ecs::entity`. |
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Allen Pocket
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d93b78a66e
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Remove unnecessary muts in RenderSet::QueueMeshes (#14953)
# Objective Fixes #14952 |
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charlotte
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99ab0285e4
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Fix mesh2_manual exapmle. (#14831)
Fix `mesh2d_manual` example from changes in #13069. ``` wgpu error: Validation Error Caused by: In RenderPass::end In a set_pipeline command Render pipeline targets are incompatible with render pass Incompatible depth-stencil attachment format: the RenderPass uses a texture with format Some(Depth32Float) but the RenderPipeline with 'colored_mesh2d_pipeline' label uses an attachment with format None ``` |
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charlotte
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03fd1b46ef
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Move Msaa to component (#14273)
Switches `Msaa` from being a globally configured resource to a per camera view component. Closes #7194 # Objective Allow individual views to describe their own MSAA settings. For example, when rendering to different windows or to different parts of the same view. ## Solution Make `Msaa` a component that is required on all camera bundles. ## Testing Ran a variety of examples to ensure that nothing broke. TODO: - [ ] Make sure android still works per previous comment in `extract_windows`. --- ## Migration Guide `Msaa` is no longer configured as a global resource, and should be specified on each spawned camera if a non-default setting is desired. --------- Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com> Co-authored-by: François Mockers <francois.mockers@vleue.com> |
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Patrick Walton
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bc34216929
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Pack multiple vertex and index arrays together into growable buffers. (#14257)
This commit uses the [`offset-allocator`] crate to combine vertex and index arrays from different meshes into single buffers. Since the primary source of `wgpu` overhead is from validation and synchronization when switching buffers, this significantly improves Bevy's rendering performance on many scenes. This patch is a more flexible version of #13218, which also used slabs. Unlike #13218, which used slabs of a fixed size, this commit implements slabs that start small and can grow. In addition to reducing memory usage, supporting slab growth reduces the number of vertex and index buffer switches that need to happen during rendering, leading to improved performance. To prevent pathological fragmentation behavior, slabs are capped to a maximum size, and mesh arrays that are too large get their own dedicated slabs. As an additional improvement over #13218, this commit allows the application to customize all allocator heuristics. The `MeshAllocatorSettings` resource contains values that adjust the minimum and maximum slab sizes, the cutoff point at which meshes get their own dedicated slabs, and the rate at which slabs grow. Hopefully-sensible defaults have been chosen for each value. Unfortunately, WebGL 2 doesn't support the *base vertex* feature, which is necessary to pack vertex arrays from different meshes into the same buffer. `wgpu` represents this restriction as the downlevel flag `BASE_VERTEX`. This patch detects that bit and ensures that all vertex buffers get dedicated slabs on that platform. Even on WebGL 2, though, we can combine all *index* arrays into single buffers to reduce buffer changes, and we do so. The following measurements are on Bistro: Overall frame time improves from 8.74 ms to 5.53 ms (1.58x speedup):  Render system time improves from 6.57 ms to 3.54 ms (1.86x speedup):  Opaque pass time improves from 4.64 ms to 2.33 ms (1.99x speedup):  ## Migration Guide ### Changed * Vertex and index buffers for meshes may now be packed alongside other buffers, for performance. * `GpuMesh` has been renamed to `RenderMesh`, to reflect the fact that it no longer directly stores handles to GPU objects. * Because meshes no longer have their own vertex and index buffers, the responsibility for the buffers has moved from `GpuMesh` (now called `RenderMesh`) to the `MeshAllocator` resource. To access the vertex data for a mesh, use `MeshAllocator::mesh_vertex_slice`. To access the index data for a mesh, use `MeshAllocator::mesh_index_slice`. [`offset-allocator`]: https://github.com/pcwalton/offset-allocator |
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Ricky Taylor
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9b9d3d81cb
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Normalise matrix naming (#13489)
# Objective - Fixes #10909 - Fixes #8492 ## Solution - Name all matrices `x_from_y`, for example `world_from_view`. ## Testing - I've tested most of the 3D examples. The `lighting` example particularly should hit a lot of the changes and appears to run fine. --- ## Changelog - Renamed matrices across the engine to follow a `y_from_x` naming, making the space conversion more obvious. ## Migration Guide - `Frustum`'s `from_view_projection`, `from_view_projection_custom_far` and `from_view_projection_no_far` were renamed to `from_clip_from_world`, `from_clip_from_world_custom_far` and `from_clip_from_world_no_far`. - `ComputedCameraValues::projection_matrix` was renamed to `clip_from_view`. - `CameraProjection::get_projection_matrix` was renamed to `get_clip_from_view` (this affects implementations on `Projection`, `PerspectiveProjection` and `OrthographicProjection`). - `ViewRangefinder3d::from_view_matrix` was renamed to `from_world_from_view`. - `PreviousViewData`'s members were renamed to `view_from_world` and `clip_from_world`. - `ExtractedView`'s `projection`, `transform` and `view_projection` were renamed to `clip_from_view`, `world_from_view` and `clip_from_world`. - `ViewUniform`'s `view_proj`, `unjittered_view_proj`, `inverse_view_proj`, `view`, `inverse_view`, `projection` and `inverse_projection` were renamed to `clip_from_world`, `unjittered_clip_from_world`, `world_from_clip`, `world_from_view`, `view_from_world`, `clip_from_view` and `view_from_clip`. - `GpuDirectionalCascade::view_projection` was renamed to `clip_from_world`. - `MeshTransforms`' `transform` and `previous_transform` were renamed to `world_from_local` and `previous_world_from_local`. - `MeshUniform`'s `transform`, `previous_transform`, `inverse_transpose_model_a` and `inverse_transpose_model_b` were renamed to `world_from_local`, `previous_world_from_local`, `local_from_world_transpose_a` and `local_from_world_transpose_b` (the `Mesh` type in WGSL mirrors this, however `transform` and `previous_transform` were named `model` and `previous_model`). - `Mesh2dTransforms::transform` was renamed to `world_from_local`. - `Mesh2dUniform`'s `transform`, `inverse_transpose_model_a` and `inverse_transpose_model_b` were renamed to `world_from_local`, `local_from_world_transpose_a` and `local_from_world_transpose_b` (the `Mesh2d` type in WGSL mirrors this). - In WGSL, in `bevy_pbr::mesh_functions`, `get_model_matrix` and `get_previous_model_matrix` were renamed to `get_world_from_local` and `get_previous_world_from_local`. - In WGSL, `bevy_sprite::mesh2d_functions::get_model_matrix` was renamed to `get_world_from_local`. |
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Patrick Walton
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9da0b2a0ec
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Make render phases render world resources instead of components. (#13277)
This commit makes us stop using the render world ECS for `BinnedRenderPhase` and `SortedRenderPhase` and instead use resources with `EntityHashMap`s inside. There are three reasons to do this: 1. We can use `clear()` to clear out the render phase collections instead of recreating the components from scratch, allowing us to reuse allocations. 2. This is a prerequisite for retained bins, because components can't be retained from frame to frame in the render world, but resources can. 3. We want to move away from storing anything in components in the render world ECS, and this is a step in that direction. This patch results in a small performance benefit, due to point (1) above. ## Changelog ### Changed * The `BinnedRenderPhase` and `SortedRenderPhase` render world components have been replaced with `ViewBinnedRenderPhases` and `ViewSortedRenderPhases` resources. ## Migration Guide * The `BinnedRenderPhase` and `SortedRenderPhase` render world components have been replaced with `ViewBinnedRenderPhases` and `ViewSortedRenderPhases` resources. Instead of querying for the components, look the camera entity up in the `ViewBinnedRenderPhases`/`ViewSortedRenderPhases` tables. |
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Patrick Walton
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16531fb3e3
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Implement GPU frustum culling. (#12889)
This commit implements opt-in GPU frustum culling, built on top of the infrastructure in https://github.com/bevyengine/bevy/pull/12773. To enable it on a camera, add the `GpuCulling` component to it. To additionally disable CPU frustum culling, add the `NoCpuCulling` component. Note that adding `GpuCulling` without `NoCpuCulling` *currently* does nothing useful. The reason why `GpuCulling` doesn't automatically imply `NoCpuCulling` is that I intend to follow this patch up with GPU two-phase occlusion culling, and CPU frustum culling plus GPU occlusion culling seems like a very commonly-desired mode. Adding the `GpuCulling` component to a view puts that view into *indirect mode*. This mode makes all drawcalls indirect, relying on the mesh preprocessing shader to allocate instances dynamically. In indirect mode, the `PreprocessWorkItem` `output_index` points not to a `MeshUniform` instance slot but instead to a set of `wgpu` `IndirectParameters`, from which it allocates an instance slot dynamically if frustum culling succeeds. Batch building has been updated to allocate and track indirect parameter slots, and the AABBs are now supplied to the GPU as `MeshCullingData`. A small amount of code relating to the frustum culling has been borrowed from meshlets and moved into `maths.wgsl`. Note that standard Bevy frustum culling uses AABBs, while meshlets use bounding spheres; this means that not as much code can be shared as one might think. This patch doesn't provide any way to perform GPU culling on shadow maps, to avoid making this patch bigger than it already is. That can be a followup. ## Changelog ### Added * Frustum culling can now optionally be done on the GPU. To enable it, add the `GpuCulling` component to a camera. * To disable CPU frustum culling, add `NoCpuCulling` to a camera. Note that `GpuCulling` doesn't automatically imply `NoCpuCulling`. |
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Rob Parrett
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a1adba19a9
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Fix custom pipeline in mesh2d_manual rendering other meshes (#11477)
# Objective Fixes #11476 ## Solution Give the pipeline its own "mesh2d instances hashmap." Pretty sure this is a good fix, but I am not super familiar with this code so a rendering expert should take a look. > your fix in the pull request works brilliantly for me too. > -- _Discord user who pointed out bug_ |
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JMS55
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17633c1f75
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Remove unused push constants (#13076)
The shader code was removed in #11280, but we never cleaned up the rust code. |
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Patrick Walton
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5caf085dac
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Divide the single VisibleEntities list into separate lists for 2D meshes, 3D meshes, lights, and UI elements, for performance. (#12582)
This commit splits `VisibleEntities::entities` into four separate lists: one for lights, one for 2D meshes, one for 3D meshes, and one for UI elements. This allows `queue_material_meshes` and similar methods to avoid examining entities that are obviously irrelevant. In particular, this separation helps scenes with many skinned meshes, as the individual bones are considered visible entities but have no rendered appearance. Internally, `VisibleEntities::entities` is a `HashMap` from the `TypeId` representing a `QueryFilter` to the appropriate `Entity` list. I had to do this because `VisibleEntities` is located within an upstream crate from the crates that provide lights (`bevy_pbr`) and 2D meshes (`bevy_sprite`). As an added benefit, this setup allows apps to provide their own types of renderable components, by simply adding a specialized `check_visibility` to the schedule. This provides a 16.23% end-to-end speedup on `many_foxes` with 10,000 foxes (24.06 ms/frame to 20.70 ms/frame). ## Migration guide * `check_visibility` and `VisibleEntities` now store the four types of renderable entities--2D meshes, 3D meshes, lights, and UI elements--separately. If your custom rendering code examines `VisibleEntities`, it will now need to specify which type of entity it's interested in using the `WithMesh2d`, `WithMesh`, `WithLight`, and `WithNode` types respectively. If your app introduces a new type of renderable entity, you'll need to add an explicit call to `check_visibility` to the schedule to accommodate your new component or components. ## Analysis `many_foxes`, 10,000 foxes: `main`:  `many_foxes`, 10,000 foxes, this branch:  `queue_material_meshes` (yellow = this branch, red = `main`):  `queue_shadows` (yellow = this branch, red = `main`):  |
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Robert Swain
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ab7cbfa8fc
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Consolidate Render(Ui)Materials(2d) into RenderAssets (#12827)
# Objective - Replace `RenderMaterials` / `RenderMaterials2d` / `RenderUiMaterials` with `RenderAssets` to enable implementing changes to one thing, `RenderAssets`, that applies to all use cases rather than duplicating changes everywhere for multiple things that should be one thing. - Adopts #8149 ## Solution - Make RenderAsset generic over the destination type rather than the source type as in #8149 - Use `RenderAssets<PreparedMaterial<M>>` etc for render materials --- ## Changelog - Changed: - The `RenderAsset` trait is now implemented on the destination type. Its `SourceAsset` associated type refers to the type of the source asset. - `RenderMaterials`, `RenderMaterials2d`, and `RenderUiMaterials` have been replaced by `RenderAssets<PreparedMaterial<M>>` and similar. ## Migration Guide - `RenderAsset` is now implemented for the destination type rather that the source asset type. The source asset type is now the `RenderAsset` trait's `SourceAsset` associated type. |
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Patrick Walton
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37522fd0ae
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Micro-optimize queue_material_meshes, primarily to remove bit manipulation. (#12791)
This commit makes the following optimizations: ## `MeshPipelineKey`/`BaseMeshPipelineKey` split `MeshPipelineKey` has been split into `BaseMeshPipelineKey`, which lives in `bevy_render` and `MeshPipelineKey`, which lives in `bevy_pbr`. Conceptually, `BaseMeshPipelineKey` is a superclass of `MeshPipelineKey`. For `BaseMeshPipelineKey`, the bits start at the highest (most significant) bit and grow downward toward the lowest bit; for `MeshPipelineKey`, the bits start at the lowest bit and grow upward toward the highest bit. This prevents them from colliding. The goal of this is to avoid having to reassemble bits of the pipeline key for every mesh every frame. Instead, we can just use a bitwise or operation to combine the pieces that make up a `MeshPipelineKey`. ## `specialize_slow` Previously, all of `specialize()` was marked as `#[inline]`. This bloated `queue_material_meshes` unnecessarily, as a large chunk of it ended up being a slow path that was rarely hit. This commit refactors the function to move the slow path to `specialize_slow()`. Together, these two changes shave about 5% off `queue_material_meshes`:  ## Migration Guide - The `primitive_topology` field on `GpuMesh` is now an accessor method: `GpuMesh::primitive_topology()`. - For performance reasons, `MeshPipelineKey` has been split into `BaseMeshPipelineKey`, which lives in `bevy_render`, and `MeshPipelineKey`, which lives in `bevy_pbr`. These two should be combined with bitwise-or to produce the final `MeshPipelineKey`. |
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Cameron
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01649f13e2
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Refactor App and SubApp internals for better separation (#9202)
# Objective This is a necessary precursor to #9122 (this was split from that PR to reduce the amount of code to review all at once). Moving `!Send` resource ownership to `App` will make it unambiguously `!Send`. `SubApp` must be `Send`, so it can't wrap `App`. ## Solution Refactor `App` and `SubApp` to not have a recursive relationship. Since `SubApp` no longer wraps `App`, once `!Send` resources are moved out of `World` and into `App`, `SubApp` will become unambiguously `Send`. There could be less code duplication between `App` and `SubApp`, but that would break `App` method chaining. ## Changelog - `SubApp` no longer wraps `App`. - `App` fields are no longer publicly accessible. - `App` can no longer be converted into a `SubApp`. - Various methods now return references to a `SubApp` instead of an `App`. ## Migration Guide - To construct a sub-app, use `SubApp::new()`. `App` can no longer convert into `SubApp`. - If you implemented a trait for `App`, you may want to implement it for `SubApp` as well. - If you're accessing `app.world` directly, you now have to use `app.world()` and `app.world_mut()`. - `App::sub_app` now returns `&SubApp`. - `App::sub_app_mut` now returns `&mut SubApp`. - `App::get_sub_app` now returns `Option<&SubApp>.` - `App::get_sub_app_mut` now returns `Option<&mut SubApp>.` |
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Patrick Walton
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4dadebd9c4
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Improve performance by binning together opaque items instead of sorting them. (#12453)
Today, we sort all entities added to all phases, even the phases that don't strictly need sorting, such as the opaque and shadow phases. This results in a performance loss because our `PhaseItem`s are rather large in memory, so sorting is slow. Additionally, determining the boundaries of batches is an O(n) process. This commit makes Bevy instead applicable place phase items into *bins* keyed by *bin keys*, which have the invariant that everything in the same bin is potentially batchable. This makes determining batch boundaries O(1), because everything in the same bin can be batched. Instead of sorting each entity, we now sort only the bin keys. This drops the sorting time to near-zero on workloads with few bins like `many_cubes --no-frustum-culling`. Memory usage is improved too, with batch boundaries and dynamic indices now implicit instead of explicit. The improved memory usage results in a significant win even on unbatchable workloads like `many_cubes --no-frustum-culling --vary-material-data-per-instance`, presumably due to cache effects. Not all phases can be binned; some, such as transparent and transmissive phases, must still be sorted. To handle this, this commit splits `PhaseItem` into `BinnedPhaseItem` and `SortedPhaseItem`. Most of the logic that today deals with `PhaseItem`s has been moved to `SortedPhaseItem`. `BinnedPhaseItem` has the new logic. Frame time results (in ms/frame) are as follows: | Benchmark | `binning` | `main` | Speedup | | ------------------------ | --------- | ------- | ------- | | `many_cubes -nfc -vpi` | 232.179 | 312.123 | 34.43% | | `many_cubes -nfc` | 25.874 | 30.117 | 16.40% | | `many_foxes` | 3.276 | 3.515 | 7.30% | (`-nfc` is short for `--no-frustum-culling`; `-vpi` is short for `--vary-per-instance`.) --- ## Changelog ### Changed * Render phases have been split into binned and sorted phases. Binned phases, such as the common opaque phase, achieve improved CPU performance by avoiding the sorting step. ## Migration Guide - `PhaseItem` has been split into `BinnedPhaseItem` and `SortedPhaseItem`. If your code has custom `PhaseItem`s, you will need to migrate them to one of these two types. `SortedPhaseItem` requires the fewest code changes, but you may want to pick `BinnedPhaseItem` if your phase doesn't require sorting, as that enables higher performance. ## Tracy graphs `many-cubes --no-frustum-culling`, `main` branch: <img width="1064" alt="Screenshot 2024-03-12 180037" src="https://github.com/bevyengine/bevy/assets/157897/e1180ce8-8e89-46d2-85e3-f59f72109a55"> `many-cubes --no-frustum-culling`, this branch: <img width="1064" alt="Screenshot 2024-03-12 180011" src="https://github.com/bevyengine/bevy/assets/157897/0899f036-6075-44c5-a972-44d95895f46c"> You can see that `batch_and_prepare_binned_render_phase` is a much smaller fraction of the time. Zooming in on that function, with yellow being this branch and red being `main`, we see: <img width="1064" alt="Screenshot 2024-03-12 175832" src="https://github.com/bevyengine/bevy/assets/157897/0dfc8d3f-49f4-496e-8825-a66e64d356d0"> The binning happens in `queue_material_meshes`. Again with yellow being this branch and red being `main`: <img width="1064" alt="Screenshot 2024-03-12 175755" src="https://github.com/bevyengine/bevy/assets/157897/b9b20dc1-11c8-400c-a6cc-1c2e09c1bb96"> We can see that there is a small regression in `queue_material_meshes` performance, but it's not nearly enough to outweigh the large gains in `batch_and_prepare_binned_render_phase`. --------- Co-authored-by: James Liu <contact@jamessliu.com> |
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François Mockers
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ece6249830
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fix example mesh2d_manual in wasm/webgl2 (#12753)
# Objective
- Example `mesh2d_manual` crashes in wasm/webgl2, as reported in
https://github.com/bevyengine/bevy-website/issues/1123#issuecomment-2019479670
```
wgpu error: Validation Error
Caused by:
In a RenderPass
note: encoder = `<CommandBuffer-(0, 1, Gl)>`
In a set_push_constant command
Provided push constant is for stage(s) ShaderStages(VERTEX), however the pipeline layout has no push constant range for the stage(s) ShaderStages(VERTEX)
```
## Solution
- Properly declare the push constant as in
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Jacques Schutte
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4508077297
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Move FloatOrd into bevy_math (#12732)
# Objective - Fixes #12712 ## Solution - Move the `float_ord.rs` file to `bevy_math` - Change any `bevy_utils::FloatOrd` statements to `bevy_math::FloatOrd` --- ## Changelog - Moved `FloatOrd` from `bevy_utils` to `bevy_math` ## Migration Guide - References to `bevy_utils::FloatOrd` should be changed to `bevy_math::FloatOrd` |
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Vitaliy Sapronenko
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67cc605e9f
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Removed Into<AssedId<T>> for Handle<T> as mentioned in #12600 (#12655)
Fixes #12600 ## Solution Removed Into<AssetId<T>> for Handle<T> as proposed in Issue conversation, fixed dependent code ## Migration guide If you use passing Handle by value as AssetId, you should pass reference or call .id() method on it Before (0.13): `assets.insert(handle, value);` After (0.14): `assets.insert(&handle, value);` or `assets.insert(handle.id(), value);` |
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Alice Cecile
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599e5e4e76
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Migrate from LegacyColor to bevy_color::Color (#12163)
# Objective - As part of the migration process we need to a) see the end effect of the migration on user ergonomics b) check for serious perf regressions c) actually migrate the code - To accomplish this, I'm going to attempt to migrate all of the remaining user-facing usages of `LegacyColor` in one PR, being careful to keep a clean commit history. - Fixes #12056. ## Solution I've chosen to use the polymorphic `Color` type as our standard user-facing API. - [x] Migrate `bevy_gizmos`. - [x] Take `impl Into<Color>` in all `bevy_gizmos` APIs - [x] Migrate sprites - [x] Migrate UI - [x] Migrate `ColorMaterial` - [x] Migrate `MaterialMesh2D` - [x] Migrate fog - [x] Migrate lights - [x] Migrate StandardMaterial - [x] Migrate wireframes - [x] Migrate clear color - [x] Migrate text - [x] Migrate gltf loader - [x] Register color types for reflection - [x] Remove `LegacyColor` - [x] Make sure CI passes Incidental improvements to ease migration: - added `Color::srgba_u8`, `Color::srgba_from_array` and friends - added `set_alpha`, `is_fully_transparent` and `is_fully_opaque` to the `Alpha` trait - add and immediately deprecate (lol) `Color::rgb` and friends in favor of more explicit and consistent `Color::srgb` - standardized on white and black for most example text colors - added vector field traits to `LinearRgba`: ~~`Add`, `Sub`, `AddAssign`, `SubAssign`,~~ `Mul<f32>` and `Div<f32>`. Multiplications and divisions do not scale alpha. `Add` and `Sub` have been cut from this PR. - added `LinearRgba` and `Srgba` `RED/GREEN/BLUE` - added `LinearRgba_to_f32_array` and `LinearRgba::to_u32` ## Migration Guide Bevy's color types have changed! Wherever you used a `bevy::render::Color`, a `bevy::color::Color` is used instead. These are quite similar! Both are enums storing a color in a specific color space (or to be more precise, using a specific color model). However, each of the different color models now has its own type. TODO... - `Color::rgba`, `Color::rgb`, `Color::rbga_u8`, `Color::rgb_u8`, `Color::rgb_from_array` are now `Color::srgba`, `Color::srgb`, `Color::srgba_u8`, `Color::srgb_u8` and `Color::srgb_from_array`. - `Color::set_a` and `Color::a` is now `Color::set_alpha` and `Color::alpha`. These are part of the `Alpha` trait in `bevy_color`. - `Color::is_fully_transparent` is now part of the `Alpha` trait in `bevy_color` - `Color::r`, `Color::set_r`, `Color::with_r` and the equivalents for `g`, `b` `h`, `s` and `l` have been removed due to causing silent relatively expensive conversions. Convert your `Color` into the desired color space, perform your operations there, and then convert it back into a polymorphic `Color` enum. - `Color::hex` is now `Srgba::hex`. Call `.into` or construct a `Color::Srgba` variant manually to convert it. - `WireframeMaterial`, `ExtractedUiNode`, `ExtractedDirectionalLight`, `ExtractedPointLight`, `ExtractedSpotLight` and `ExtractedSprite` now store a `LinearRgba`, rather than a polymorphic `Color` - `Color::rgb_linear` and `Color::rgba_linear` are now `Color::linear_rgb` and `Color::linear_rgba` - The various CSS color constants are no longer stored directly on `Color`. Instead, they're defined in the `Srgba` color space, and accessed via `bevy::color::palettes::css`. Call `.into()` on them to convert them into a `Color` for quick debugging use, and consider using the much prettier `tailwind` palette for prototyping. - The `LIME_GREEN` color has been renamed to `LIMEGREEN` to comply with the standard naming. - Vector field arithmetic operations on `Color` (add, subtract, multiply and divide by a f32) have been removed. Instead, convert your colors into `LinearRgba` space, and perform your operations explicitly there. This is particularly relevant when working with emissive or HDR colors, whose color channel values are routinely outside of the ordinary 0 to 1 range. - `Color::as_linear_rgba_f32` has been removed. Call `LinearRgba::to_f32_array` instead, converting if needed. - `Color::as_linear_rgba_u32` has been removed. Call `LinearRgba::to_u32` instead, converting if needed. - Several other color conversion methods to transform LCH or HSL colors into float arrays or `Vec` types have been removed. Please reimplement these externally or open a PR to re-add them if you found them particularly useful. - Various methods on `Color` such as `rgb` or `hsl` to convert the color into a specific color space have been removed. Convert into `LinearRgba`, then to the color space of your choice. - Various implicitly-converting color value methods on `Color` such as `r`, `g`, `b` or `h` have been removed. Please convert it into the color space of your choice, then check these properties. - `Color` no longer implements `AsBindGroup`. Store a `LinearRgba` internally instead to avoid conversion costs. --------- Co-authored-by: Alice Cecile <alice.i.cecil@gmail.com> Co-authored-by: Afonso Lage <lage.afonso@gmail.com> Co-authored-by: Rob Parrett <robparrett@gmail.com> Co-authored-by: Zachary Harrold <zac@harrold.com.au> |
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|
Alice Cecile
|
de004da8d5
|
Rename bevy_render::Color to LegacyColor (#12069)
# Objective The migration process for `bevy_color` (#12013) will be fairly involved: there will be hundreds of affected files, and a large number of APIs. ## Solution To allow us to proceed granularly, we're going to keep both `bevy_color::Color` (new) and `bevy_render::Color` (old) around until the migration is complete. However, simply doing this directly is confusing! They're both called `Color`, making it very hard to tell when a portion of the code has been ported. As discussed in #12056, by renaming the old `Color` type, we can make it easier to gradually migrate over, one API at a time. ## Migration Guide THIS MIGRATION GUIDE INTENTIONALLY LEFT BLANK. This change should not be shipped to end users: delete this section in the final migration guide! --------- Co-authored-by: Alice Cecile <alice.i.cecil@gmail.com> |
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|
Lynn
|
4c86ad6aed
|
Mesh insert indices (#11745)
# Objective - Fixes #11740 ## Solution - Turned `Mesh::set_indices` into `Mesh::insert_indices` and added related methods for completeness. --- ## Changelog - Replaced `Mesh::set_indices(indices: Option<Indices>)` with `Mesh::insert_indices(indices: Indices)` - Replaced `Mesh::with_indices(indices: Option<Indices>)` with `Mesh::with_inserted_indices(indices: Indices)` and `Mesh::with_removed_indices()` mirroring the API for inserting / removing attributes. - Updated the examples and internal uses of the APIs described above. ## Migration Guide - Use `Mesh::insert_indices` or `Mesh::with_inserted_indices` instead of `Mesh::set_indices` / `Mesh::with_indices`. - If you have passed `None` to `Mesh::set_indices` or `Mesh::with_indices` you should use `Mesh::remove_indices` or `Mesh::with_removed_indices` instead. --------- Co-authored-by: François <mockersf@gmail.com> |
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Brian Reavis
|
6b40b6749e
|
RenderAssetPersistencePolicy → RenderAssetUsages (#11399)
# Objective Right now, all assets in the main world get extracted and prepared in the render world (if the asset's using the RenderAssetPlugin). This is unfortunate for two cases: 1. **TextureAtlas** / **FontAtlas**: This one's huge. The individual `Image` assets that make up the atlas are cloned and prepared individually when there's no reason for them to be. The atlas textures are built on the CPU in the main world. *There can be hundreds of images that get prepared for rendering only not to be used.* 2. If one loads an Image and needs to transform it in a system before rendering it, kind of like the [decompression example](https://github.com/bevyengine/bevy/blob/main/examples/asset/asset_decompression.rs#L120), there's a price paid for extracting & preparing the asset that's not intended to be rendered yet. ------ * References #10520 * References #1782 ## Solution This changes the `RenderAssetPersistencePolicy` enum to bitflags. I felt that the objective with the parameter is so similar in nature to wgpu's [`TextureUsages`](https://docs.rs/wgpu/latest/wgpu/struct.TextureUsages.html) and [`BufferUsages`](https://docs.rs/wgpu/latest/wgpu/struct.BufferUsages.html), that it may as well be just like that. ```rust // This asset only needs to be in the main world. Don't extract and prepare it. RenderAssetUsages::MAIN_WORLD // Keep this asset in the main world and RenderAssetUsages::MAIN_WORLD | RenderAssetUsages::RENDER_WORLD // This asset is only needed in the render world. Remove it from the asset server once extracted. RenderAssetUsages::RENDER_WORLD ``` ### Alternate Solution I considered introducing a third field to `RenderAssetPersistencePolicy` enum: ```rust enum RenderAssetPersistencePolicy { /// Keep the asset in the main world after extracting to the render world. Keep, /// Remove the asset from the main world after extracting to the render world. Unload, /// This doesn't need to be in the render world at all. NoExtract, // <----- } ``` Functional, but this seemed like shoehorning. Another option is renaming the enum to something like: ```rust enum RenderAssetExtractionPolicy { /// Extract the asset and keep it in the main world. Extract, /// Remove the asset from the main world after extracting to the render world. ExtractAndUnload, /// This doesn't need to be in the render world at all. NoExtract, } ``` I think this last one could be a good option if the bitflags are too clunky. ## Migration Guide * `RenderAssetPersistencePolicy::Keep` → `RenderAssetUsage::MAIN_WORLD | RenderAssetUsage::RENDER_WORLD` (or `RenderAssetUsage::default()`) * `RenderAssetPersistencePolicy::Unload` → `RenderAssetUsage::RENDER_WORLD` * For types implementing the `RenderAsset` trait, change `fn persistence_policy(&self) -> RenderAssetPersistencePolicy` to `fn asset_usage(&self) -> RenderAssetUsages`. * Change any references to `cpu_persistent_access` (`RenderAssetPersistencePolicy`) to `asset_usage` (`RenderAssetUsage`). This applies to `Image`, `Mesh`, and a few other types. |
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|
JMS55
|
44424391fe
|
Unload render assets from RAM (#10520)
# Objective - No point in keeping Meshes/Images in RAM once they're going to be sent to the GPU, and kept in VRAM. This saves a _significant_ amount of memory (several GBs) on scenes like bistro. - References - https://github.com/bevyengine/bevy/pull/1782 - https://github.com/bevyengine/bevy/pull/8624 ## Solution - Augment RenderAsset with the capability to unload the underlying asset after extracting to the render world. - Mesh/Image now have a cpu_persistent_access field. If this field is RenderAssetPersistencePolicy::Unload, the asset will be unloaded from Assets<T>. - A new AssetEvent is sent upon dropping the last strong handle for the asset, which signals to the RenderAsset to remove the GPU version of the asset. --- ## Changelog - Added `AssetEvent::NoLongerUsed` and `AssetEvent::is_no_longer_used()`. This event is sent when the last strong handle of an asset is dropped. - Rewrote the API for `RenderAsset` to allow for unloading the asset data from the CPU. - Added `RenderAssetPersistencePolicy`. - Added `Mesh::cpu_persistent_access` for memory savings when the asset is not needed except for on the GPU. - Added `Image::cpu_persistent_access` for memory savings when the asset is not needed except for on the GPU. - Added `ImageLoaderSettings::cpu_persistent_access`. - Added `ExrTextureLoaderSettings`. - Added `HdrTextureLoaderSettings`. ## Migration Guide - Asset loaders (GLTF, etc) now load meshes and textures without `cpu_persistent_access`. These assets will be removed from `Assets<Mesh>` and `Assets<Image>` once `RenderAssets<Mesh>` and `RenderAssets<Image>` contain the GPU versions of these assets, in order to reduce memory usage. If you require access to the asset data from the CPU in future frames after the GLTF asset has been loaded, modify all dependent `Mesh` and `Image` assets and set `cpu_persistent_access` to `RenderAssetPersistencePolicy::Keep`. - `Mesh` now requires a new `cpu_persistent_access` field. Set it to `RenderAssetPersistencePolicy::Keep` to mimic the previous behavior. - `Image` now requires a new `cpu_persistent_access` field. Set it to `RenderAssetPersistencePolicy::Keep` to mimic the previous behavior. - `MorphTargetImage::new()` now requires a new `cpu_persistent_access` parameter. Set it to `RenderAssetPersistencePolicy::Keep` to mimic the previous behavior. - `DynamicTextureAtlasBuilder::add_texture()` now requires that the `TextureAtlas` you pass has an `Image` with `cpu_persistent_access: RenderAssetPersistencePolicy::Keep`. Ensure you construct the image properly for the texture atlas. - The `RenderAsset` trait has significantly changed, and requires adapting your existing implementations. - The trait now requires `Clone`. - The `ExtractedAsset` associated type has been removed (the type itself is now extracted). - The signature of `prepare_asset()` is slightly different - A new `persistence_policy()` method is now required (return RenderAssetPersistencePolicy::Unload to match the previous behavior). - Match on the new `NoLongerUsed` variant for exhaustive matches of `AssetEvent`. |
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|
JMS55
|
4bf20e7d27
|
Swap material and mesh bind groups (#10485)
# Objective - Materials should be a more frequent rebind then meshes (due to being able to use a single vertex buffer, such as in #10164) and therefore should be in a higher bind group. --- ## Changelog - For 2d and 3d mesh/material setups (but not UI materials, or other rendering setups such as gizmos, sprites, or text), mesh data is now in bind group 1, and material data is now in bind group 2, which is swapped from how they were before. ## Migration Guide - Custom 2d and 3d mesh/material shaders should now use bind group 2 `@group(2) @binding(x)` for their bound resources, instead of bind group 1. - Many internal pieces of rendering code have changed so that mesh data is now in bind group 1, and material data is now in bind group 2. Semi-custom rendering setups (that don't use the Material or Material2d APIs) should adapt to these changes. |
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|
Ame
|
951c9bb1a2
|
Add [lints] table, fix adding #![allow(clippy::type_complexity)] everywhere (#10011)
# Objective - Fix adding `#![allow(clippy::type_complexity)]` everywhere. like #9796 ## Solution - Use the new [lints] table that will land in 1.74 (https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#lints) - inherit lint to the workspace, crates and examples. ``` [lints] workspace = true ``` ## Changelog - Bump rust version to 1.74 - Enable lints table for the workspace ```toml [workspace.lints.clippy] type_complexity = "allow" ``` - Allow type complexity for all crates and examples ```toml [lints] workspace = true ``` --------- Co-authored-by: Martín Maita <47983254+mnmaita@users.noreply.github.com> |
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|
Guillaume Gomez
|
fe7e31ea76
|
Fix intra-doc link warnings (#10445)
When `cargo doc -Zunstable-options -Zrustdoc-scrape-examples` (trying to figure out why it doesn't work with bevy), I had the following warnings: ``` warning: unresolved link to `Quad` --> examples/2d/mesh2d.rs:1:66 | 1 | //! Shows how to render a polygonal [`Mesh`], generated from a [`Quad`] primitive, in a 2D scene. | ^^^^ no item named `Quad` in scope | = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default warning: `bevy` (example "mesh2d") generated 1 warning warning: unresolved link to `update_weights` --> examples/animation/morph_targets.rs:6:17 | 6 | //! See the [`update_weights`] system for details. | ^^^^^^^^^^^^^^ no item named `update_weights` in scope | = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default warning: public documentation for `morph_targets` links to private item `name_morphs` --> examples/animation/morph_targets.rs:7:43 | 7 | //! - How to read morph target names in [`name_morphs`]. | ^^^^^^^^^^^ this item is private | = note: this link will resolve properly if you pass `--document-private-items` = note: `#[warn(rustdoc::private_intra_doc_links)]` on by default warning: public documentation for `morph_targets` links to private item `setup_animations` --> examples/animation/morph_targets.rs:8:48 | 8 | //! - How to play morph target animations in [`setup_animations`]. | ^^^^^^^^^^^^^^^^ this item is private | = note: this link will resolve properly if you pass `--document-private-items` warning: `bevy` (example "morph_targets") generated 3 warnings warning: unresolved link to `Quad` --> examples/2d/mesh2d_vertex_color_texture.rs:1:66 | 1 | //! Shows how to render a polygonal [`Mesh`], generated from a [`Quad`] primitive, in a 2D scene. | ^^^^ no item named `Quad` in scope | = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default warning: `bevy` (example "mesh2d_vertex_color_texture") generated 1 warning warning: unresolved link to `UIScale` --> examples/ui/ui_scaling.rs:1:36 | 1 | //! This example illustrates the [`UIScale`] resource from `bevy_ui`. | ^^^^^^^ no item named `UIScale` in scope | = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default warning: `bevy` (example "ui_scaling") generated 1 warning warning: unresolved link to `dependencies` --> examples/app/headless.rs:5:6 | 5 | //! [dependencies] | ^^^^^^^^^^^^ no item named `dependencies` in scope | = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default warning: `bevy` (example "headless") generated 1 warning warning: unresolved link to `Material2d` --> examples/2d/mesh2d_manual.rs:3:26 | 3 | //! It doesn't use the [`Material2d`] abstraction, but changes the vertex buffer to include verte... | ^^^^^^^^^^ no item named `Material2d` in scope | = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]` = note: `#[warn(rustdoc::broken_intra_doc_links)]` on by default warning: `bevy` (example "mesh2d_manual") generated 1 warning ``` |
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|
robtfm
|
61bad4eb57
|
update shader imports (#10180)
# Objective
- bump naga_oil to 0.10
- update shader imports to use rusty syntax
## Migration Guide
naga_oil 0.10 reworks the import mechanism to support more syntax to
make it more rusty, and test for item use before importing to determine
which imports are modules and which are items, which allows:
- use rust-style imports
```
#import bevy_pbr::{
pbr_functions::{alpha_discard as discard, apply_pbr_lighting},
mesh_bindings,
}
```
- import partial paths:
```
#import part::of::path
...
path::remainder::function();
```
which will call to `part::of::path::remainder::function`
- use fully qualified paths without importing:
```
// #import bevy_pbr::pbr_functions
bevy_pbr::pbr_functions::pbr()
```
- use imported items without qualifying
```
#import bevy_pbr::pbr_functions::pbr
// for backwards compatibility the old style is still supported:
// #import bevy_pbr::pbr_functions pbr
...
pbr()
```
- allows most imported items to end with `_` and numbers (naga_oil#30).
still doesn't allow struct members to end with `_` or numbers but it's
progress.
- the vast majority of existing shader code will work without changes,
but will emit "deprecated" warnings for old-style imports. these can be
suppressed with the `allow-deprecated` feature.
- partly breaks overrides (as far as i'm aware nobody uses these yet) -
now overrides will only be applied if the overriding module is added as
an additional import in the arguments to `Composer::make_naga_module` or
`Composer::add_composable_module`. this is necessary to support
determining whether imports are modules or items.
|
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|
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` |
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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> |