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bevy/Cargo.toml
Miles Silberling-Cook 0070514f54
Fallible systems (#16589) 
# Objective

Error handling in bevy is hard. See for reference
https://github.com/bevyengine/bevy/issues/11562,
https://github.com/bevyengine/bevy/issues/10874 and
https://github.com/bevyengine/bevy/issues/12660. The goal of this PR is
to make it better, by allowing users to optionally return `Result` from
systems as outlined by Cart in
<https://github.com/bevyengine/bevy/issues/14275#issuecomment-2223708314>.

## Solution

This PR introduces a new `ScheuleSystem` type to represent systems that
can be added to schedules. Instances of this type contain either an
infallible `BoxedSystem<(), ()>` or a fallible `BoxedSystem<(),
Result>`. `ScheuleSystem` implements `System<In = (), Out = Result>` and
replaces all uses of `BoxedSystem` in schedules. The async executor now
receives a result after executing a system, which for infallible systems
is always `Ok(())`. Currently it ignores this result, but more useful
error handling could also be implemented.

Aliases for `Error` and `Result` have been added to the `bevy_ecs`
prelude, as well as const `OK` which new users may find more friendly
than `Ok(())`.

## Testing

- Currently there are not actual semantics changes that really require
new tests, but I added a basic one just to make sure we don't break
stuff in the future.
- The behavior of existing systems is totally unchanged, including
logging.
- All of the existing systems tests pass, and I have not noticed
anything strange while playing with the examples

## Showcase

The following minimal example prints "hello world" once, then completes.

```rust
use bevy::prelude::*;

fn main() {
    App::new().add_systems(Update, hello_world_system).run();
}

fn hello_world_system() -> Result {
    println!("hello world");
    Err("string")?;
    println!("goodbye world");
    OK
}
```

## Migration Guide

This change should be pretty much non-breaking, except for users who
have implemented their own custom executors. Those users should use
`ScheduleSystem` in place of `BoxedSystem<(), ()>` and import the
`System` trait where needed. They can choose to do whatever they wish
with the result.

## Current Work

+ [x] Fix tests & doc comments
+ [x] Write more tests
+ [x] Add examples
+ [X] Draft release notes

## Draft Release Notes

As of this release, systems can now return results.

First a bit of background: Bevy has hisotrically expected systems to
return the empty type `()`. While this makes sense in the context of the
ecs, it's at odds with how error handling is typically done in rust:
returning `Result::Error` to indicate failure, and using the
short-circuiting `?` operator to propagate that error up the call stack
to where it can be properly handled. Users of functional languages will
tell you this is called "monadic error handling".

Not being able to return `Results` from systems left bevy users with a
quandry. They could add custom error handling logic to every system, or
manually pipe every system into an error handler, or perhaps sidestep
the issue with some combination of fallible assignents, logging, macros,
and early returns. Often, users would just litter their systems with
unwraps and possible panics.

While any one of these approaches might be fine for a particular user,
each of them has their own drawbacks, and none makes good use of the
language. Serious issues could also arrise when two different crates
used by the same project made different choices about error handling.

Now, by returning results, systems can defer error handling to the
application itself. It looks like this:

```rust
// Previous, handling internally
app.add_systems(my_system)
fn my_system(window: Query<&Window>) {
   let Ok(window) = query.get_single() else {
       return;
   };
   // ... do something to the window here
}

// Previous, handling externally
app.add_systems(my_system.pipe(my_error_handler))
fn my_system(window: Query<&Window>) -> Result<(), impl Error> {
   let window = query.get_single()?;
   // ... do something to the window here
   Ok(())
}

// Previous, panicking
app.add_systems(my_system)
fn my_system(window: Query<&Window>) {
   let window = query.single();
   // ... do something to the window here
}

// Now 
app.add_systems(my_system)
fn my_system(window: Query<&Window>) -> Result {
    let window = query.get_single()?;
    // ... do something to the window here
    Ok(())
}
```

There are currently some limitations. Systems must either return `()` or
`Result<(), Box<dyn Error + Send + Sync + 'static>>`, with no
in-between. Results are also ignored by default, and though implementing
a custom handler is possible, it involves writing your own custom ecs
executor (which is *not* recomended).

Systems should return errors when they cannot perform their normal
behavior. In turn, errors returned to the executor while running the
schedule will (eventually) be treated as unexpected. Users and library
authors should prefer to return errors for anything that disrupts the
normal expected behavior of a system, and should only handle expected
cases internally.

We have big plans for improving error handling further:
+ Allowing users to change the error handling logic of the default
executors.
+ Adding source tracking and optional backtraces to errors.
+ Possibly adding tracing-levels (Error/Warn/Info/Debug/Trace) to
errors.
+ Generally making the default error logging more helpful and
inteligent.
+ Adding monadic system combininators for fallible systems.
+ Possibly removing all panicking variants from our api.

---------

Co-authored-by: Zachary Harrold <zac@harrold.com.au>
2024-12-05 22:29:06 +00:00

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[package]
name = "bevy"
version = "0.15.0-dev"
edition = "2021"
categories = ["game-engines", "graphics", "gui", "rendering"]
description = "A refreshingly simple data-driven game engine and app framework"
exclude = ["assets/", "tools/", ".github/", "crates/", "examples/wasm/assets/"]
homepage = "https://bevyengine.org"
keywords = ["game", "engine", "gamedev", "graphics", "bevy"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/bevyengine/bevy"
documentation = "https://docs.rs/bevy"
rust-version = "1.82.0"
[workspace]
exclude = [
"benches",
"crates/bevy_derive/compile_fail",
"crates/bevy_ecs/compile_fail",
"crates/bevy_reflect/compile_fail",
"tools/compile_fail_utils",
]
members = [
"crates/*",
"examples/mobile",
"tools/ci",
"tools/build-templated-pages",
"tools/build-wasm-example",
"tools/example-showcase",
"errors",
]
[workspace.lints.clippy]
doc_markdown = "warn"
manual_let_else = "warn"
match_same_arms = "warn"
redundant_closure_for_method_calls = "warn"
redundant_else = "warn"
semicolon_if_nothing_returned = "warn"
type_complexity = "allow"
undocumented_unsafe_blocks = "warn"
unwrap_or_default = "warn"
needless_lifetimes = "allow"
ptr_as_ptr = "warn"
ptr_cast_constness = "warn"
ref_as_ptr = "warn"
# see: https://github.com/bevyengine/bevy/pull/15375#issuecomment-2366966219
too_long_first_doc_paragraph = "allow"
std_instead_of_core = "warn"
std_instead_of_alloc = "warn"
alloc_instead_of_core = "warn"
[workspace.lints.rust]
missing_docs = "warn"
unexpected_cfgs = { level = "warn", check-cfg = ['cfg(docsrs_dep)'] }
unsafe_code = "deny"
unsafe_op_in_unsafe_fn = "warn"
unused_qualifications = "warn"
# Unfortunately, cargo does not currently support overriding workspace lints
# inside a particular crate. See https://github.com/rust-lang/cargo/issues/13157
#
# We require an override for cases like `std_instead_of_core`, which are intended
# for the library contributors and not for how users should consume Bevy.
# To ensure examples aren't subject to these lints, below is a duplication of the
# workspace lints, with the "overrides" applied.
#
# [lints]
# workspace = true
[lints.clippy]
doc_markdown = "warn"
manual_let_else = "warn"
match_same_arms = "warn"
redundant_closure_for_method_calls = "warn"
redundant_else = "warn"
semicolon_if_nothing_returned = "warn"
type_complexity = "allow"
undocumented_unsafe_blocks = "warn"
unwrap_or_default = "warn"
needless_lifetimes = "allow"
ptr_as_ptr = "warn"
ptr_cast_constness = "warn"
ref_as_ptr = "warn"
too_long_first_doc_paragraph = "allow"
std_instead_of_core = "allow"
std_instead_of_alloc = "allow"
alloc_instead_of_core = "allow"
[lints.rust]
missing_docs = "warn"
unexpected_cfgs = { level = "warn", check-cfg = ['cfg(docsrs_dep)'] }
unsafe_code = "deny"
unsafe_op_in_unsafe_fn = "warn"
unused_qualifications = "warn"
[features]
default = [
"android-game-activity",
"android_shared_stdcxx",
"animation",
"bevy_asset",
"bevy_audio",
"bevy_color",
"bevy_core_pipeline",
"bevy_gilrs",
"bevy_gizmos",
"bevy_gltf",
"bevy_mesh_picking_backend",
"bevy_pbr",
"bevy_picking",
"bevy_render",
"bevy_scene",
"bevy_sprite",
"bevy_sprite_picking_backend",
"bevy_state",
"bevy_text",
"bevy_ui",
"bevy_ui_picking_backend",
"bevy_window",
"bevy_winit",
"custom_cursor",
"default_font",
"hdr",
"multi_threaded",
"png",
"smaa_luts",
"sysinfo_plugin",
"tonemapping_luts",
"vorbis",
"webgl2",
"x11",
]
# Provides an implementation for picking meshes
bevy_mesh_picking_backend = [
"bevy_picking",
"bevy_internal/bevy_mesh_picking_backend",
]
# Provides an implementation for picking sprites
bevy_sprite_picking_backend = [
"bevy_picking",
"bevy_internal/bevy_sprite_picking_backend",
]
# Provides an implementation for picking UI
bevy_ui_picking_backend = [
"bevy_picking",
"bevy_internal/bevy_ui_picking_backend",
]
# Force dynamic linking, which improves iterative compile times
dynamic_linking = ["dep:bevy_dylib", "bevy_internal/dynamic_linking"]
# Enables system information diagnostic plugin
sysinfo_plugin = ["bevy_internal/sysinfo_plugin"]
# Provides animation functionality
bevy_animation = ["bevy_internal/bevy_animation", "bevy_color"]
# Provides asset functionality
bevy_asset = ["bevy_internal/bevy_asset"]
# Provides audio functionality
bevy_audio = ["bevy_internal/bevy_audio"]
# Provides shared color types and operations
bevy_color = ["bevy_internal/bevy_color"]
# Provides cameras and other basic render pipeline features
bevy_core_pipeline = [
"bevy_internal/bevy_core_pipeline",
"bevy_asset",
"bevy_render",
]
# Adds gamepad support
bevy_gilrs = ["bevy_internal/bevy_gilrs"]
# [glTF](https://www.khronos.org/gltf/) support
bevy_gltf = ["bevy_internal/bevy_gltf", "bevy_asset", "bevy_scene", "bevy_pbr"]
# Adds PBR rendering
bevy_pbr = [
"bevy_internal/bevy_pbr",
"bevy_asset",
"bevy_render",
"bevy_core_pipeline",
]
# Provides picking functionality
bevy_picking = ["bevy_internal/bevy_picking"]
# Provides rendering functionality
bevy_render = ["bevy_internal/bevy_render", "bevy_color"]
# Provides scene functionality
bevy_scene = ["bevy_internal/bevy_scene", "bevy_asset"]
# Provides sprite functionality
bevy_sprite = [
"bevy_internal/bevy_sprite",
"bevy_render",
"bevy_core_pipeline",
"bevy_color",
"bevy_sprite_picking_backend",
]
# Provides text functionality
bevy_text = ["bevy_internal/bevy_text", "bevy_asset", "bevy_sprite"]
# A custom ECS-driven UI framework
bevy_ui = [
"bevy_internal/bevy_ui",
"bevy_core_pipeline",
"bevy_text",
"bevy_sprite",
"bevy_color",
"bevy_ui_picking_backend",
]
# Windowing layer
bevy_window = ["bevy_internal/bevy_window"]
# winit window and input backend
bevy_winit = ["bevy_internal/bevy_winit"]
# Adds support for rendering gizmos
bevy_gizmos = ["bevy_internal/bevy_gizmos", "bevy_color"]
# Provides a collection of developer tools
bevy_dev_tools = ["bevy_internal/bevy_dev_tools"]
# Enable the Bevy Remote Protocol
bevy_remote = ["bevy_internal/bevy_remote"]
# Enable passthrough loading for SPIR-V shaders (Only supported on Vulkan, shader capabilities and extensions must agree with the platform implementation)
spirv_shader_passthrough = ["bevy_internal/spirv_shader_passthrough"]
# Tracing support, saving a file in Chrome Tracing format
trace_chrome = ["trace", "bevy_internal/trace_chrome"]
# Tracing support, exposing a port for Tracy
trace_tracy = ["trace", "bevy_internal/trace_tracy"]
# Tracing support, with memory profiling, exposing a port for Tracy
trace_tracy_memory = [
"trace",
"bevy_internal/trace_tracy",
"bevy_internal/trace_tracy_memory",
]
# Tracing support
trace = ["bevy_internal/trace"]
# Basis Universal compressed texture support
basis-universal = ["bevy_internal/basis-universal"]
# BMP image format support
bmp = ["bevy_internal/bmp"]
# DDS compressed texture support
dds = ["bevy_internal/dds"]
# EXR image format support
exr = ["bevy_internal/exr"]
# Farbfeld image format support
ff = ["bevy_internal/ff"]
# GIF image format support
gif = ["bevy_internal/gif"]
# HDR image format support
hdr = ["bevy_internal/hdr"]
# KTX2 compressed texture support
ktx2 = ["bevy_internal/ktx2"]
# ICO image format support
ico = ["bevy_internal/ico"]
# JPEG image format support
jpeg = ["bevy_internal/jpeg"]
# PNG image format support
png = ["bevy_internal/png"]
# PNM image format support, includes pam, pbm, pgm and ppm
pnm = ["bevy_internal/pnm"]
# QOI image format support
qoi = ["bevy_internal/qoi"]
# TGA image format support
tga = ["bevy_internal/tga"]
# TIFF image format support
tiff = ["bevy_internal/tiff"]
# WebP image format support
webp = ["bevy_internal/webp"]
# For KTX2 supercompression
zlib = ["bevy_internal/zlib"]
# For KTX2 supercompression
zstd = ["bevy_internal/zstd"]
# FLAC audio format support
flac = ["bevy_internal/flac"]
# MP3 audio format support
mp3 = ["bevy_internal/mp3"]
# OGG/VORBIS audio format support
vorbis = ["bevy_internal/vorbis"]
# WAV audio format support
wav = ["bevy_internal/wav"]
# MP3 audio format support (through minimp3)
minimp3 = ["bevy_internal/minimp3"]
# AAC audio format support (through symphonia)
symphonia-aac = ["bevy_internal/symphonia-aac"]
# AAC, FLAC, MP3, MP4, OGG/VORBIS, and WAV audio formats support (through symphonia)
symphonia-all = ["bevy_internal/symphonia-all"]
# FLAC audio format support (through symphonia)
symphonia-flac = ["bevy_internal/symphonia-flac"]
# MP4 audio format support (through symphonia)
symphonia-isomp4 = ["bevy_internal/symphonia-isomp4"]
# OGG/VORBIS audio format support (through symphonia)
symphonia-vorbis = ["bevy_internal/symphonia-vorbis"]
# WAV audio format support (through symphonia)
symphonia-wav = ["bevy_internal/symphonia-wav"]
# Enable serialization support through serde
serialize = ["bevy_internal/serialize"]
# Enables multithreaded parallelism in the engine. Disabling it forces all engine tasks to run on a single thread.
multi_threaded = ["bevy_internal/multi_threaded"]
# Use async-io's implementation of block_on instead of futures-lite's implementation. This is preferred if your application uses async-io.
async-io = ["bevy_internal/async-io"]
# Wayland display server support
wayland = ["bevy_internal/wayland"]
# X11 display server support
x11 = ["bevy_internal/x11"]
# Android NativeActivity support. Legacy, should be avoided for most new Android games.
android-native-activity = ["bevy_internal/android-native-activity"]
# Android GameActivity support. Default, choose between this and `android-native-activity`.
android-game-activity = ["bevy_internal/android-game-activity"]
# Enable systems that allow for automated testing on CI
bevy_ci_testing = ["bevy_internal/bevy_ci_testing"]
# Enable animation support, and glTF animation loading
animation = ["bevy_internal/animation", "bevy_animation"]
# Enable using a shared stdlib for cxx on Android
android_shared_stdcxx = ["bevy_internal/android_shared_stdcxx"]
# Enable detailed trace event logging. These trace events are expensive even when off, thus they require compile time opt-in
detailed_trace = ["bevy_internal/detailed_trace"]
# Include tonemapping Look Up Tables KTX2 files. If everything is pink, you need to enable this feature or change the `Tonemapping` method for your `Camera2d` or `Camera3d`.
tonemapping_luts = ["bevy_internal/tonemapping_luts", "ktx2", "zstd"]
# Include SMAA Look Up Tables KTX2 Files
smaa_luts = ["bevy_internal/smaa_luts"]
# Enable AccessKit on Unix backends (currently only works with experimental screen readers and forks.)
accesskit_unix = ["bevy_internal/accesskit_unix"]
# Enable assertions to check the validity of parameters passed to glam
glam_assert = ["bevy_internal/glam_assert"]
# Enable assertions in debug builds to check the validity of parameters passed to glam
debug_glam_assert = ["bevy_internal/debug_glam_assert"]
# Include a default font, containing only ASCII characters, at the cost of a 20kB binary size increase
default_font = ["bevy_internal/default_font"]
# Enable support for shaders in GLSL
shader_format_glsl = ["bevy_internal/shader_format_glsl"]
# Enable support for shaders in SPIR-V
shader_format_spirv = ["bevy_internal/shader_format_spirv"]
# Enable support for transmission-related textures in the `StandardMaterial`, at the risk of blowing past the global, per-shader texture limit on older/lower-end GPUs
pbr_transmission_textures = ["bevy_internal/pbr_transmission_textures"]
# Enable support for multi-layer material textures in the `StandardMaterial`, at the risk of blowing past the global, per-shader texture limit on older/lower-end GPUs
pbr_multi_layer_material_textures = [
"bevy_internal/pbr_multi_layer_material_textures",
]
# Enable support for anisotropy texture in the `StandardMaterial`, at the risk of blowing past the global, per-shader texture limit on older/lower-end GPUs
pbr_anisotropy_texture = ["bevy_internal/pbr_anisotropy_texture"]
# Enable support for PCSS, at the risk of blowing past the global, per-shader sampler limit on older/lower-end GPUs
experimental_pbr_pcss = ["bevy_internal/experimental_pbr_pcss"]
# Enable some limitations to be able to use WebGL2. Please refer to the [WebGL2 and WebGPU](https://github.com/bevyengine/bevy/tree/latest/examples#webgl2-and-webgpu) section of the examples README for more information on how to run Wasm builds with WebGPU.
webgl2 = ["bevy_internal/webgl"]
# Enable support for WebGPU in Wasm. When enabled, this feature will override the `webgl2` feature and you won't be able to run Wasm builds with WebGL2, only with WebGPU.
webgpu = ["bevy_internal/webgpu"]
# Enables the built-in asset processor for processed assets.
asset_processor = ["bevy_internal/asset_processor"]
# Enables watching the filesystem for Bevy Asset hot-reloading
file_watcher = ["bevy_internal/file_watcher"]
# Enables watching in memory asset providers for Bevy Asset hot-reloading
embedded_watcher = ["bevy_internal/embedded_watcher"]
# Enable stepping-based debugging of Bevy systems
bevy_debug_stepping = ["bevy_internal/bevy_debug_stepping"]
# Enables the meshlet renderer for dense high-poly scenes (experimental)
meshlet = ["bevy_internal/meshlet"]
# Enables processing meshes into meshlet meshes for bevy_pbr
meshlet_processor = ["bevy_internal/meshlet_processor"]
# Enable support for the ios_simulator by downgrading some rendering capabilities
ios_simulator = ["bevy_internal/ios_simulator"]
# Enable built in global state machines
bevy_state = ["bevy_internal/bevy_state"]
# Enables source location tracking for change detection, which can assist with debugging
track_change_detection = ["bevy_internal/track_change_detection"]
# Enable function reflection
reflect_functions = ["bevy_internal/reflect_functions"]
# Enable winit custom cursor support
custom_cursor = ["bevy_internal/custom_cursor"]
# Experimental support for nodes that are ignored for UI layouting
ghost_nodes = ["bevy_internal/ghost_nodes"]
[dependencies]
bevy_internal = { path = "crates/bevy_internal", version = "0.15.0-dev", default-features = false }
# Wasm does not support dynamic linking.
[target.'cfg(not(target_family = "wasm"))'.dependencies]
bevy_dylib = { path = "crates/bevy_dylib", version = "0.15.0-dev", default-features = false, optional = true }
[dev-dependencies]
rand = "0.8.0"
rand_chacha = "0.3.1"
ron = "0.8.0"
flate2 = "1.0"
serde = { version = "1", features = ["derive"] }
serde_json = "1"
bytemuck = "1.7"
bevy_render = { path = "crates/bevy_render", version = "0.15.0-dev", default-features = false }
# Needed to poll Task examples
futures-lite = "2.0.1"
async-std = "1.13"
crossbeam-channel = "0.5.0"
argh = "0.1.12"
thiserror = "1.0"
event-listener = "5.3.0"
hyper = { version = "1", features = ["server", "http1"] }
http-body-util = "0.1"
anyhow = "1"
macro_rules_attribute = "0.2"
accesskit = "0.17"
[target.'cfg(not(target_family = "wasm"))'.dev-dependencies]
smol = "2"
smol-macros = "0.1"
smol-hyper = "0.1"
ureq = { version = "2.10.1", features = ["json"] }
[target.'cfg(target_arch = "wasm32")'.dev-dependencies]
wasm-bindgen = { version = "0.2" }
web-sys = { version = "0.3", features = ["Window"] }
[[example]]
name = "hello_world"
path = "examples/hello_world.rs"
doc-scrape-examples = true
[package.metadata.example.hello_world]
hidden = true
# 2D Rendering
[[example]]
name = "bloom_2d"
path = "examples/2d/bloom_2d.rs"
doc-scrape-examples = true
[package.metadata.example.bloom_2d]
name = "2D Bloom"
description = "Illustrates bloom post-processing in 2d"
category = "2D Rendering"
wasm = true
[[example]]
name = "move_sprite"
path = "examples/2d/move_sprite.rs"
doc-scrape-examples = true
[package.metadata.example.move_sprite]
name = "Move Sprite"
description = "Changes the transform of a sprite"
category = "2D Rendering"
wasm = true
[[example]]
name = "2d_viewport_to_world"
path = "examples/2d/2d_viewport_to_world.rs"
doc-scrape-examples = true
[package.metadata.example.2d_viewport_to_world]
name = "2D Viewport To World"
description = "Demonstrates how to use the `Camera::viewport_to_world_2d` method"
category = "2D Rendering"
wasm = true
[[example]]
name = "rotation"
path = "examples/2d/rotation.rs"
doc-scrape-examples = true
[package.metadata.example.rotation]
name = "2D Rotation"
description = "Demonstrates rotating entities in 2D with quaternions"
category = "2D Rendering"
wasm = true
[[example]]
name = "mesh2d"
path = "examples/2d/mesh2d.rs"
doc-scrape-examples = true
[package.metadata.example.mesh2d]
name = "Mesh 2D"
description = "Renders a 2d mesh"
category = "2D Rendering"
wasm = true
[[example]]
name = "mesh2d_arcs"
path = "examples/2d/mesh2d_arcs.rs"
doc-scrape-examples = true
[package.metadata.example.mesh2d_arcs]
name = "Arc 2D Meshes"
description = "Demonstrates UV-mapping of the circular segment and sector primitives"
category = "2D Rendering"
wasm = true
[[example]]
name = "mesh2d_manual"
path = "examples/2d/mesh2d_manual.rs"
doc-scrape-examples = true
[package.metadata.example.mesh2d_manual]
name = "Manual Mesh 2D"
description = "Renders a custom mesh \"manually\" with \"mid-level\" renderer apis"
category = "2D Rendering"
wasm = true
[[example]]
name = "mesh2d_vertex_color_texture"
path = "examples/2d/mesh2d_vertex_color_texture.rs"
doc-scrape-examples = true
[package.metadata.example.mesh2d_vertex_color_texture]
name = "Mesh 2D With Vertex Colors"
description = "Renders a 2d mesh with vertex color attributes"
category = "2D Rendering"
wasm = true
[[example]]
name = "2d_shapes"
path = "examples/2d/2d_shapes.rs"
doc-scrape-examples = true
[package.metadata.example.2d_shapes]
name = "2D Shapes"
description = "Renders simple 2D primitive shapes like circles and polygons"
category = "2D Rendering"
wasm = true
[[example]]
name = "custom_gltf_vertex_attribute"
path = "examples/2d/custom_gltf_vertex_attribute.rs"
doc-scrape-examples = true
[package.metadata.example.custom_gltf_vertex_attribute]
name = "Custom glTF vertex attribute 2D"
description = "Renders a glTF mesh in 2D with a custom vertex attribute"
category = "2D Rendering"
wasm = true
[[example]]
name = "cpu_draw"
path = "examples/2d/cpu_draw.rs"
doc-scrape-examples = true
[package.metadata.example.cpu_draw]
name = "CPU Drawing"
description = "Manually read/write the pixels of a texture"
category = "2D Rendering"
wasm = true
[[example]]
name = "sprite"
path = "examples/2d/sprite.rs"
doc-scrape-examples = true
[package.metadata.example.sprite]
name = "Sprite"
description = "Renders a sprite"
category = "2D Rendering"
wasm = true
[[example]]
name = "sprite_animation"
path = "examples/2d/sprite_animation.rs"
doc-scrape-examples = true
[package.metadata.example.sprite_animation]
name = "Sprite Animation"
description = "Animates a sprite in response to an event"
category = "2D Rendering"
wasm = true
[[example]]
name = "sprite_flipping"
path = "examples/2d/sprite_flipping.rs"
doc-scrape-examples = true
[package.metadata.example.sprite_flipping]
name = "Sprite Flipping"
description = "Renders a sprite flipped along an axis"
category = "2D Rendering"
wasm = true
[[example]]
name = "sprite_sheet"
path = "examples/2d/sprite_sheet.rs"
doc-scrape-examples = true
[package.metadata.example.sprite_sheet]
name = "Sprite Sheet"
description = "Renders an animated sprite"
category = "2D Rendering"
wasm = true
[[example]]
name = "sprite_tile"
path = "examples/2d/sprite_tile.rs"
doc-scrape-examples = true
[package.metadata.example.sprite_tile]
name = "Sprite Tile"
description = "Renders a sprite tiled in a grid"
category = "2D Rendering"
wasm = true
[[example]]
name = "sprite_slice"
path = "examples/2d/sprite_slice.rs"
doc-scrape-examples = true
[package.metadata.example.sprite_slice]
name = "Sprite Slice"
description = "Showcases slicing sprites into sections that can be scaled independently via the 9-patch technique"
category = "2D Rendering"
wasm = true
[[example]]
name = "text2d"
path = "examples/2d/text2d.rs"
doc-scrape-examples = true
[package.metadata.example.text2d]
name = "Text 2D"
description = "Generates text in 2D"
category = "2D Rendering"
wasm = true
[[example]]
name = "texture_atlas"
path = "examples/2d/texture_atlas.rs"
doc-scrape-examples = true
[package.metadata.example.texture_atlas]
name = "Texture Atlas"
description = "Generates a texture atlas (sprite sheet) from individual sprites"
category = "2D Rendering"
wasm = false
[[example]]
name = "transparency_2d"
path = "examples/2d/transparency_2d.rs"
doc-scrape-examples = true
[package.metadata.example.transparency_2d]
name = "Transparency in 2D"
description = "Demonstrates transparency in 2d"
category = "2D Rendering"
wasm = true
[[example]]
name = "mesh2d_alpha_mode"
path = "examples/2d/mesh2d_alpha_mode.rs"
doc-scrape-examples = true
[package.metadata.example.mesh2d_alpha_mode]
name = "Mesh2d Alpha Mode"
description = "Used to test alpha modes with mesh2d"
category = "2D Rendering"
wasm = true
[[example]]
name = "pixel_grid_snap"
path = "examples/2d/pixel_grid_snap.rs"
doc-scrape-examples = true
[package.metadata.example.pixel_grid_snap]
name = "Pixel Grid Snapping"
description = "Shows how to create graphics that snap to the pixel grid by rendering to a texture in 2D"
category = "2D Rendering"
wasm = true
[[example]]
name = "bounding_2d"
path = "examples/2d/bounding_2d.rs"
doc-scrape-examples = true
[package.metadata.example.bounding_2d]
name = "2D Bounding Volume Intersections"
description = "Showcases bounding volumes and intersection tests"
category = "2D Rendering"
wasm = true
[[example]]
name = "wireframe_2d"
path = "examples/2d/wireframe_2d.rs"
doc-scrape-examples = true
[package.metadata.example.wireframe_2d]
name = "2D Wireframe"
description = "Showcases wireframes for 2d meshes"
category = "2D Rendering"
wasm = false
# 3D Rendering
[[example]]
name = "3d_scene"
path = "examples/3d/3d_scene.rs"
doc-scrape-examples = true
[package.metadata.example.3d_scene]
name = "3D Scene"
description = "Simple 3D scene with basic shapes and lighting"
category = "3D Rendering"
wasm = true
[[example]]
name = "3d_shapes"
path = "examples/3d/3d_shapes.rs"
doc-scrape-examples = true
[package.metadata.example.3d_shapes]
name = "3D Shapes"
description = "A scene showcasing the built-in 3D shapes"
category = "3D Rendering"
wasm = true
[[example]]
name = "3d_viewport_to_world"
path = "examples/3d/3d_viewport_to_world.rs"
doc-scrape-examples = true
[package.metadata.example.3d_viewport_to_world]
name = "3D Viewport To World"
description = "Demonstrates how to use the `Camera::viewport_to_world` method"
category = "3D Rendering"
wasm = true
[[example]]
name = "animated_material"
path = "examples/3d/animated_material.rs"
doc-scrape-examples = true
[package.metadata.example.animated_material]
name = "Animated Material"
description = "Shows how to animate material properties"
category = "3D Rendering"
wasm = true
[[example]]
name = "generate_custom_mesh"
path = "examples/3d/generate_custom_mesh.rs"
doc-scrape-examples = true
[package.metadata.example.generate_custom_mesh]
name = "Generate Custom Mesh"
description = "Simple showcase of how to generate a custom mesh with a custom texture"
category = "3D Rendering"
wasm = true
[[example]]
name = "anti_aliasing"
path = "examples/3d/anti_aliasing.rs"
doc-scrape-examples = true
[package.metadata.example.anti_aliasing]
name = "Anti-aliasing"
description = "Compares different anti-aliasing methods"
category = "3D Rendering"
wasm = false
[[example]]
name = "atmospheric_fog"
path = "examples/3d/atmospheric_fog.rs"
doc-scrape-examples = true
[package.metadata.example.atmospheric_fog]
name = "Atmospheric Fog"
description = "A scene showcasing the atmospheric fog effect"
category = "3D Rendering"
wasm = true
[[example]]
name = "fog"
path = "examples/3d/fog.rs"
doc-scrape-examples = true
[package.metadata.example.fog]
name = "Fog"
description = "A scene showcasing the distance fog effect"
category = "3D Rendering"
wasm = true
[[example]]
name = "auto_exposure"
path = "examples/3d/auto_exposure.rs"
doc-scrape-examples = true
[package.metadata.example.auto_exposure]
name = "Auto Exposure"
description = "A scene showcasing auto exposure"
category = "3D Rendering"
wasm = false
[[example]]
name = "blend_modes"
path = "examples/3d/blend_modes.rs"
doc-scrape-examples = true
[package.metadata.example.blend_modes]
name = "Blend Modes"
description = "Showcases different blend modes"
category = "3D Rendering"
wasm = true
[[example]]
name = "lighting"
path = "examples/3d/lighting.rs"
doc-scrape-examples = true
[package.metadata.example.lighting]
name = "Lighting"
description = "Illustrates various lighting options in a simple scene"
category = "3D Rendering"
wasm = true
[[example]]
name = "lines"
path = "examples/3d/lines.rs"
doc-scrape-examples = true
[package.metadata.example.lines]
name = "Lines"
description = "Create a custom material to draw 3d lines"
category = "3D Rendering"
# Wasm does not support the `POLYGON_MODE_LINE` feature.
wasm = false
[[example]]
name = "ssao"
path = "examples/3d/ssao.rs"
doc-scrape-examples = true
[package.metadata.example.ssao]
name = "Screen Space Ambient Occlusion"
description = "A scene showcasing screen space ambient occlusion"
category = "3D Rendering"
wasm = false
[[example]]
name = "spotlight"
path = "examples/3d/spotlight.rs"
doc-scrape-examples = true
[package.metadata.example.spotlight]
name = "Spotlight"
description = "Illustrates spot lights"
category = "3D Rendering"
wasm = true
[[example]]
name = "bloom_3d"
path = "examples/3d/bloom_3d.rs"
doc-scrape-examples = true
[package.metadata.example.bloom_3d]
name = "3D Bloom"
description = "Illustrates bloom configuration using HDR and emissive materials"
category = "3D Rendering"
wasm = true
[[example]]
name = "deferred_rendering"
path = "examples/3d/deferred_rendering.rs"
doc-scrape-examples = true
[package.metadata.example.deferred_rendering]
name = "Deferred Rendering"
description = "Renders meshes with both forward and deferred pipelines"
category = "3D Rendering"
wasm = true
[[example]]
name = "load_gltf"
path = "examples/3d/load_gltf.rs"
doc-scrape-examples = true
[package.metadata.example.load_gltf]
name = "Load glTF"
description = "Loads and renders a glTF file as a scene"
category = "3D Rendering"
wasm = true
[[example]]
name = "load_gltf_extras"
path = "examples/3d/load_gltf_extras.rs"
doc-scrape-examples = true
[package.metadata.example.load_gltf_extras]
name = "Load glTF extras"
description = "Loads and renders a glTF file as a scene, including the gltf extras"
category = "3D Rendering"
wasm = true
[[example]]
name = "query_gltf_primitives"
path = "examples/3d/query_gltf_primitives.rs"
doc-scrape-examples = true
[package.metadata.example.query_gltf_primitives]
name = "Query glTF primitives"
description = "Query primitives in a glTF scene"
category = "3D Rendering"
wasm = true
[[example]]
name = "motion_blur"
path = "examples/3d/motion_blur.rs"
doc-scrape-examples = true
[package.metadata.example.motion_blur]
name = "Motion Blur"
description = "Demonstrates per-pixel motion blur"
category = "3D Rendering"
wasm = false
[[example]]
name = "order_independent_transparency"
path = "examples/3d/order_independent_transparency.rs"
doc-scrape-examples = true
[package.metadata.example.order_independent_transparency]
name = "Order Independent Transparency"
description = "Demonstrates how to use OIT"
category = "3D Rendering"
wasm = false
[[example]]
name = "tonemapping"
path = "examples/3d/tonemapping.rs"
doc-scrape-examples = true
[package.metadata.example.tonemapping]
name = "Tonemapping"
description = "Compares tonemapping options"
category = "3D Rendering"
wasm = true
[[example]]
name = "orthographic"
path = "examples/3d/orthographic.rs"
doc-scrape-examples = true
[package.metadata.example.orthographic]
name = "Orthographic View"
description = "Shows how to create a 3D orthographic view (for isometric-look in games or CAD applications)"
category = "3D Rendering"
wasm = true
[[example]]
name = "parenting"
path = "examples/3d/parenting.rs"
doc-scrape-examples = true
[package.metadata.example.parenting]
name = "Parenting"
description = "Demonstrates parent->child relationships and relative transformations"
category = "3D Rendering"
wasm = true
[[example]]
name = "pbr"
path = "examples/3d/pbr.rs"
doc-scrape-examples = true
[package.metadata.example.pbr]
name = "Physically Based Rendering"
description = "Demonstrates use of Physically Based Rendering (PBR) properties"
category = "3D Rendering"
wasm = true
[[example]]
name = "parallax_mapping"
path = "examples/3d/parallax_mapping.rs"
doc-scrape-examples = true
[package.metadata.example.parallax_mapping]
name = "Parallax Mapping"
description = "Demonstrates use of a normal map and depth map for parallax mapping"
category = "3D Rendering"
wasm = true
[[example]]
name = "render_to_texture"
path = "examples/3d/render_to_texture.rs"
doc-scrape-examples = true
[package.metadata.example.render_to_texture]
name = "Render to Texture"
description = "Shows how to render to a texture, useful for mirrors, UI, or exporting images"
category = "3D Rendering"
wasm = true
[[example]]
name = "shadow_biases"
path = "examples/3d/shadow_biases.rs"
doc-scrape-examples = true
[package.metadata.example.shadow_biases]
name = "Shadow Biases"
description = "Demonstrates how shadow biases affect shadows in a 3d scene"
category = "3D Rendering"
wasm = true
[[example]]
name = "shadow_caster_receiver"
path = "examples/3d/shadow_caster_receiver.rs"
doc-scrape-examples = true
[package.metadata.example.shadow_caster_receiver]
name = "Shadow Caster and Receiver"
description = "Demonstrates how to prevent meshes from casting/receiving shadows in a 3d scene"
category = "3D Rendering"
wasm = true
[[example]]
name = "skybox"
path = "examples/3d/skybox.rs"
doc-scrape-examples = true
[package.metadata.example.skybox]
name = "Skybox"
description = "Load a cubemap texture onto a cube like a skybox and cycle through different compressed texture formats."
category = "3D Rendering"
wasm = false
[[example]]
name = "spherical_area_lights"
path = "examples/3d/spherical_area_lights.rs"
doc-scrape-examples = true
[package.metadata.example.spherical_area_lights]
name = "Spherical Area Lights"
description = "Demonstrates how point light radius values affect light behavior"
category = "3D Rendering"
wasm = true
[[example]]
name = "split_screen"
path = "examples/3d/split_screen.rs"
doc-scrape-examples = true
[package.metadata.example.split_screen]
name = "Split Screen"
description = "Demonstrates how to render two cameras to the same window to accomplish \"split screen\""
category = "3D Rendering"
wasm = true
[[example]]
name = "texture"
path = "examples/3d/texture.rs"
doc-scrape-examples = true
[package.metadata.example.texture]
name = "Texture"
description = "Shows configuration of texture materials"
category = "3D Rendering"
wasm = true
[[example]]
name = "transparency_3d"
path = "examples/3d/transparency_3d.rs"
doc-scrape-examples = true
[package.metadata.example.transparency_3d]
name = "Transparency in 3D"
description = "Demonstrates transparency in 3d"
category = "3D Rendering"
wasm = true
[[example]]
name = "transmission"
path = "examples/3d/transmission.rs"
doc-scrape-examples = true
[package.metadata.example.transmission]
name = "Transmission"
description = "Showcases light transmission in the PBR material"
category = "3D Rendering"
wasm = true
[[example]]
name = "two_passes"
path = "examples/3d/two_passes.rs"
doc-scrape-examples = true
[package.metadata.example.two_passes]
name = "Two Passes"
description = "Renders two 3d passes to the same window from different perspectives"
category = "3D Rendering"
wasm = true
[[example]]
name = "update_gltf_scene"
path = "examples/3d/update_gltf_scene.rs"
doc-scrape-examples = true
[package.metadata.example.update_gltf_scene]
name = "Update glTF Scene"
description = "Update a scene from a glTF file, either by spawning the scene as a child of another entity, or by accessing the entities of the scene"
category = "3D Rendering"
wasm = true
[[example]]
name = "vertex_colors"
path = "examples/3d/vertex_colors.rs"
doc-scrape-examples = true
[package.metadata.example.vertex_colors]
name = "Vertex Colors"
description = "Shows the use of vertex colors"
category = "3D Rendering"
wasm = true
[[example]]
name = "wireframe"
path = "examples/3d/wireframe.rs"
doc-scrape-examples = true
[package.metadata.example.wireframe]
name = "Wireframe"
description = "Showcases wireframe rendering"
category = "3D Rendering"
wasm = false
[[example]]
name = "irradiance_volumes"
path = "examples/3d/irradiance_volumes.rs"
doc-scrape-examples = true
[package.metadata.example.irradiance_volumes]
name = "Irradiance Volumes"
description = "Demonstrates irradiance volumes"
category = "3D Rendering"
wasm = false
[[example]]
name = "meshlet"
path = "examples/3d/meshlet.rs"
doc-scrape-examples = true
required-features = ["meshlet"]
[package.metadata.example.meshlet]
name = "Meshlet"
description = "Meshlet rendering for dense high-poly scenes (experimental)"
category = "3D Rendering"
wasm = false
setup = [
[
"curl",
"-o",
"assets/models/bunny.meshlet_mesh",
"https://raw.githubusercontent.com/JMS55/bevy_meshlet_asset/defbd9b32072624d40d57de7d345c66a9edf5d0b/bunny.meshlet_mesh",
],
]
[[example]]
name = "mesh_ray_cast"
path = "examples/3d/mesh_ray_cast.rs"
doc-scrape-examples = true
[package.metadata.example.mesh_ray_cast]
name = "Mesh Ray Cast"
description = "Demonstrates ray casting with the `MeshRayCast` system parameter"
category = "3D Rendering"
wasm = true
[[example]]
name = "lightmaps"
path = "examples/3d/lightmaps.rs"
doc-scrape-examples = true
[package.metadata.example.lightmaps]
name = "Lightmaps"
description = "Rendering a scene with baked lightmaps"
category = "3D Rendering"
wasm = false
[[example]]
name = "no_prepass"
path = "tests/3d/no_prepass.rs"
doc-scrape-examples = true
[package.metadata.example.no_prepass]
hidden = true
# Animation
[[example]]
name = "animation_events"
path = "examples/animation/animation_events.rs"
doc-scrape-examples = true
[package.metadata.example.animation_events]
name = "Animation Events"
description = "Demonstrate how to use animation events"
category = "Animation"
wasm = true
[[example]]
name = "animated_fox"
path = "examples/animation/animated_fox.rs"
doc-scrape-examples = true
[package.metadata.example.animated_fox]
name = "Animated Fox"
description = "Plays an animation from a skinned glTF"
category = "Animation"
wasm = true
[[example]]
name = "animation_graph"
path = "examples/animation/animation_graph.rs"
doc-scrape-examples = true
[package.metadata.example.animation_graph]
name = "Animation Graph"
description = "Blends multiple animations together with a graph"
category = "Animation"
wasm = true
[[example]]
name = "morph_targets"
path = "examples/animation/morph_targets.rs"
doc-scrape-examples = true
[package.metadata.example.morph_targets]
name = "Morph Targets"
description = "Plays an animation from a glTF file with meshes with morph targets"
category = "Animation"
wasm = true
[[example]]
name = "animated_transform"
path = "examples/animation/animated_transform.rs"
doc-scrape-examples = true
[package.metadata.example.animated_transform]
name = "Animated Transform"
description = "Create and play an animation defined by code that operates on the `Transform` component"
category = "Animation"
wasm = true
[[example]]
name = "color_animation"
path = "examples/animation/color_animation.rs"
doc-scrape-examples = true
[package.metadata.example.color_animation]
name = "Color animation"
description = "Demonstrates how to animate colors using mixing and splines in different color spaces"
category = "Animation"
wasm = true
[[example]]
name = "eased_motion"
path = "examples/animation/eased_motion.rs"
doc-scrape-examples = true
[package.metadata.example.eased_motion]
name = "Eased Motion"
description = "Demonstrates the application of easing curves to animate an object"
category = "Animation"
wasm = true
[[example]]
name = "easing_functions"
path = "examples/animation/easing_functions.rs"
doc-scrape-examples = true
[package.metadata.example.easing_functions]
name = "Easing Functions"
description = "Showcases the built-in easing functions"
category = "Animation"
wasm = true
[[example]]
name = "custom_skinned_mesh"
path = "examples/animation/custom_skinned_mesh.rs"
doc-scrape-examples = true
[package.metadata.example.custom_skinned_mesh]
name = "Custom Skinned Mesh"
description = "Skinned mesh example with mesh and joints data defined in code"
category = "Animation"
wasm = true
[[example]]
name = "gltf_skinned_mesh"
path = "examples/animation/gltf_skinned_mesh.rs"
doc-scrape-examples = true
[package.metadata.example.gltf_skinned_mesh]
name = "glTF Skinned Mesh"
description = "Skinned mesh example with mesh and joints data loaded from a glTF file"
category = "Animation"
wasm = true
# Application
[[example]]
name = "custom_loop"
path = "examples/app/custom_loop.rs"
doc-scrape-examples = true
[package.metadata.example.custom_loop]
name = "Custom Loop"
description = "Demonstrates how to create a custom runner (to update an app manually)"
category = "Application"
wasm = false
[[example]]
name = "drag_and_drop"
path = "examples/app/drag_and_drop.rs"
doc-scrape-examples = true
[package.metadata.example.drag_and_drop]
name = "Drag and Drop"
description = "An example that shows how to handle drag and drop in an app"
category = "Application"
wasm = false
[[example]]
name = "empty"
path = "examples/app/empty.rs"
doc-scrape-examples = true
[package.metadata.example.empty]
name = "Empty"
description = "An empty application (does nothing)"
category = "Application"
wasm = false
[[example]]
name = "empty_defaults"
path = "examples/app/empty_defaults.rs"
doc-scrape-examples = true
[package.metadata.example.empty_defaults]
name = "Empty with Defaults"
description = "An empty application with default plugins"
category = "Application"
wasm = true
[[example]]
name = "headless"
path = "examples/app/headless.rs"
doc-scrape-examples = true
[package.metadata.example.headless]
name = "Headless"
description = "An application that runs without default plugins"
category = "Application"
wasm = false
[[example]]
name = "logs"
path = "examples/app/logs.rs"
doc-scrape-examples = true
[package.metadata.example.logs]
name = "Logs"
description = "Illustrate how to use generate log output"
category = "Application"
wasm = true
[[example]]
name = "log_layers"
path = "examples/app/log_layers.rs"
doc-scrape-examples = true
[package.metadata.example.log_layers]
name = "Log layers"
description = "Illustrate how to add custom log layers"
category = "Application"
wasm = false
[[example]]
name = "log_layers_ecs"
path = "examples/app/log_layers_ecs.rs"
doc-scrape-examples = true
[package.metadata.example.log_layers_ecs]
name = "Advanced log layers"
description = "Illustrate how to transfer data between log layers and Bevy's ECS"
category = "Application"
wasm = false
[[example]]
name = "plugin"
path = "examples/app/plugin.rs"
doc-scrape-examples = true
[package.metadata.example.plugin]
name = "Plugin"
description = "Demonstrates the creation and registration of a custom plugin"
category = "Application"
wasm = true
[[example]]
name = "plugin_group"
path = "examples/app/plugin_group.rs"
doc-scrape-examples = true
[package.metadata.example.plugin_group]
name = "Plugin Group"
description = "Demonstrates the creation and registration of a custom plugin group"
category = "Application"
wasm = true
[[example]]
name = "return_after_run"
path = "examples/app/return_after_run.rs"
doc-scrape-examples = true
[package.metadata.example.return_after_run]
name = "Return after Run"
description = "Show how to return to main after the Bevy app has exited"
category = "Application"
wasm = false
[[example]]
name = "thread_pool_resources"
path = "examples/app/thread_pool_resources.rs"
doc-scrape-examples = true
[package.metadata.example.thread_pool_resources]
name = "Thread Pool Resources"
description = "Creates and customizes the internal thread pool"
category = "Application"
wasm = false
[[example]]
name = "no_renderer"
path = "examples/app/no_renderer.rs"
doc-scrape-examples = true
[package.metadata.example.no_renderer]
name = "No Renderer"
description = "An application that runs with default plugins and displays an empty window, but without an actual renderer"
category = "Application"
wasm = false
[[example]]
name = "headless_renderer"
path = "examples/app/headless_renderer.rs"
doc-scrape-examples = true
[package.metadata.example.headless_renderer]
name = "Headless Renderer"
description = "An application that runs with no window, but renders into image file"
category = "Application"
wasm = false
[[example]]
name = "without_winit"
path = "examples/app/without_winit.rs"
doc-scrape-examples = true
[package.metadata.example.without_winit]
name = "Without Winit"
description = "Create an application without winit (runs single time, no event loop)"
category = "Application"
wasm = false
# Assets
[[example]]
name = "alter_mesh"
path = "examples/asset/alter_mesh.rs"
doc-scrape-examples = true
[package.metadata.example.alter_mesh]
name = "Alter Mesh"
description = "Shows how to modify the underlying asset of a Mesh after spawning."
category = "Assets"
wasm = false
[[example]]
name = "alter_sprite"
path = "examples/asset/alter_sprite.rs"
doc-scrape-examples = true
[package.metadata.example.alter_sprite]
name = "Alter Sprite"
description = "Shows how to modify texture assets after spawning."
category = "Assets"
wasm = false
[[example]]
name = "asset_loading"
path = "examples/asset/asset_loading.rs"
doc-scrape-examples = true
[package.metadata.example.asset_loading]
name = "Asset Loading"
description = "Demonstrates various methods to load assets"
category = "Assets"
wasm = false
[[example]]
name = "asset_settings"
path = "examples/asset/asset_settings.rs"
doc-scrape-examples = true
[package.metadata.example.asset_settings]
name = "Asset Settings"
description = "Demonstrates various methods of applying settings when loading an asset"
category = "Assets"
wasm = false
[[example]]
name = "asset_decompression"
path = "examples/asset/asset_decompression.rs"
doc-scrape-examples = true
[package.metadata.example.asset_decompression]
name = "Asset Decompression"
description = "Demonstrates loading a compressed asset"
category = "Assets"
wasm = false
[[example]]
name = "custom_asset"
path = "examples/asset/custom_asset.rs"
doc-scrape-examples = true
[package.metadata.example.custom_asset]
name = "Custom Asset"
description = "Implements a custom asset loader"
category = "Assets"
wasm = true
[[example]]
name = "custom_asset_reader"
path = "examples/asset/custom_asset_reader.rs"
doc-scrape-examples = true
[package.metadata.example.custom_asset_reader]
name = "Custom Asset IO"
description = "Implements a custom AssetReader"
category = "Assets"
# Incompatible with the asset path patching of the example-showcase tool
wasm = false
[[example]]
name = "embedded_asset"
path = "examples/asset/embedded_asset.rs"
doc-scrape-examples = true
[package.metadata.example.embedded_asset]
name = "Embedded Asset"
description = "Embed an asset in the application binary and load it"
category = "Assets"
wasm = true
[[example]]
name = "extra_asset_source"
path = "examples/asset/extra_source.rs"
doc-scrape-examples = true
[package.metadata.example.extra_asset_source]
name = "Extra asset source"
description = "Load an asset from a non-standard asset source"
category = "Assets"
# Uses non-standard asset path
wasm = false
[[example]]
name = "hot_asset_reloading"
path = "examples/asset/hot_asset_reloading.rs"
doc-scrape-examples = true
required-features = ["file_watcher"]
[package.metadata.example.hot_asset_reloading]
name = "Hot Reloading of Assets"
description = "Demonstrates automatic reloading of assets when modified on disk"
category = "Assets"
wasm = false
[[example]]
name = "asset_processing"
path = "examples/asset/processing/asset_processing.rs"
doc-scrape-examples = true
required-features = ["file_watcher", "asset_processor"]
[package.metadata.example.asset_processing]
name = "Asset Processing"
description = "Demonstrates how to process and load custom assets"
category = "Assets"
wasm = false
[[example]]
name = "repeated_texture"
path = "examples/asset/repeated_texture.rs"
doc-scrape-examples = true
[package.metadata.example.repeated_texture]
name = "Repeated texture configuration"
description = "How to configure the texture to repeat instead of the default clamp to edges"
category = "Assets"
wasm = true
# Assets
[[example]]
name = "multi_asset_sync"
path = "examples/asset/multi_asset_sync.rs"
doc-scrape-examples = true
[package.metadata.example.multi_asset_sync]
name = "Mult-asset synchronization"
description = "Demonstrates how to wait for multiple assets to be loaded."
category = "Assets"
wasm = true
# Async Tasks
[[example]]
name = "async_compute"
path = "examples/async_tasks/async_compute.rs"
doc-scrape-examples = true
[package.metadata.example.async_compute]
name = "Async Compute"
description = "How to use `AsyncComputeTaskPool` to complete longer running tasks"
category = "Async Tasks"
wasm = false
[[example]]
name = "external_source_external_thread"
path = "examples/async_tasks/external_source_external_thread.rs"
doc-scrape-examples = true
[package.metadata.example.external_source_external_thread]
name = "External Source of Data on an External Thread"
description = "How to use an external thread to run an infinite task and communicate with a channel"
category = "Async Tasks"
wasm = false
# Audio
[[example]]
name = "audio"
path = "examples/audio/audio.rs"
doc-scrape-examples = true
[package.metadata.example.audio]
name = "Audio"
description = "Shows how to load and play an audio file"
category = "Audio"
wasm = true
[[example]]
name = "audio_control"
path = "examples/audio/audio_control.rs"
doc-scrape-examples = true
[package.metadata.example.audio_control]
name = "Audio Control"
description = "Shows how to load and play an audio file, and control how it's played"
category = "Audio"
wasm = true
[[example]]
name = "decodable"
path = "examples/audio/decodable.rs"
doc-scrape-examples = true
[package.metadata.example.decodable]
name = "Decodable"
description = "Shows how to create and register a custom audio source by implementing the `Decodable` type."
category = "Audio"
wasm = true
[[example]]
name = "soundtrack"
path = "examples/audio/soundtrack.rs"
doc-scrape-examples = true
[package.metadata.example.soundtrack]
name = "Soundtrack"
description = "Shows how to play different soundtracks based on game state"
category = "Audio"
wasm = true
[[example]]
name = "spatial_audio_2d"
path = "examples/audio/spatial_audio_2d.rs"
doc-scrape-examples = true
[package.metadata.example.spatial_audio_2d]
name = "Spatial Audio 2D"
description = "Shows how to play spatial audio, and moving the emitter in 2D"
category = "Audio"
wasm = true
[[example]]
name = "spatial_audio_3d"
path = "examples/audio/spatial_audio_3d.rs"
doc-scrape-examples = true
[package.metadata.example.spatial_audio_3d]
name = "Spatial Audio 3D"
description = "Shows how to play spatial audio, and moving the emitter in 3D"
category = "Audio"
wasm = true
[[example]]
name = "pitch"
path = "examples/audio/pitch.rs"
doc-scrape-examples = true
[package.metadata.example.pitch]
name = "Pitch"
description = "Shows how to directly play a simple pitch"
category = "Audio"
wasm = true
# Diagnostics
[[example]]
name = "log_diagnostics"
path = "examples/diagnostics/log_diagnostics.rs"
doc-scrape-examples = true
[package.metadata.example.log_diagnostics]
name = "Log Diagnostics"
description = "Add a plugin that logs diagnostics, like frames per second (FPS), to the console"
category = "Diagnostics"
wasm = true
[[example]]
name = "custom_diagnostic"
path = "examples/diagnostics/custom_diagnostic.rs"
doc-scrape-examples = true
[package.metadata.example.custom_diagnostic]
name = "Custom Diagnostic"
description = "Shows how to create a custom diagnostic"
category = "Diagnostics"
wasm = true
[[example]]
name = "enabling_disabling_diagnostic"
path = "examples/diagnostics/enabling_disabling_diagnostic.rs"
doc-scrape-examples = true
[package.metadata.example.enabling_disabling_diagnostic]
name = "Enabling/disabling diagnostic"
description = "Shows how to disable/re-enable a Diagnostic during runtime"
category = "Diagnostics"
wasm = true
# ECS (Entity Component System)
[[example]]
name = "ecs_guide"
path = "examples/ecs/ecs_guide.rs"
doc-scrape-examples = true
[package.metadata.example.ecs_guide]
name = "ECS Guide"
description = "Full guide to Bevy's ECS"
category = "ECS (Entity Component System)"
wasm = false
[package.metadata.example.apply_deferred]
name = "Apply System Buffers"
description = "Show how to use `ApplyDeferred` system"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "change_detection"
path = "examples/ecs/change_detection.rs"
doc-scrape-examples = true
required-features = ["track_change_detection"]
[package.metadata.example.change_detection]
name = "Change Detection"
description = "Change detection on components and resources"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "component_hooks"
path = "examples/ecs/component_hooks.rs"
doc-scrape-examples = true
[package.metadata.example.component_hooks]
name = "Component Hooks"
description = "Define component hooks to manage component lifecycle events"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "custom_schedule"
path = "examples/ecs/custom_schedule.rs"
doc-scrape-examples = true
[package.metadata.example.custom_schedule]
name = "Custom Schedule"
description = "Demonstrates how to add custom schedules"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "custom_query_param"
path = "examples/ecs/custom_query_param.rs"
doc-scrape-examples = true
[package.metadata.example.custom_query_param]
name = "Custom Query Parameters"
description = "Groups commonly used compound queries and query filters into a single type"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "dynamic"
path = "examples/ecs/dynamic.rs"
doc-scrape-examples = true
[package.metadata.example.dynamic]
name = "Dynamic ECS"
description = "Dynamically create components, spawn entities with those components and query those components"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "event"
path = "examples/ecs/event.rs"
doc-scrape-examples = true
[package.metadata.example.event]
name = "Event"
description = "Illustrates event creation, activation, and reception"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "send_and_receive_events"
path = "examples/ecs/send_and_receive_events.rs"
doc-scrape-examples = true
[package.metadata.example.send_and_receive_events]
name = "Send and receive events"
description = "Demonstrates how to send and receive events of the same type in a single system"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "fixed_timestep"
path = "examples/ecs/fixed_timestep.rs"
doc-scrape-examples = true
[package.metadata.example.fixed_timestep]
name = "Fixed Timestep"
description = "Shows how to create systems that run every fixed timestep, rather than every tick"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "generic_system"
path = "examples/ecs/generic_system.rs"
doc-scrape-examples = true
[package.metadata.example.generic_system]
name = "Generic System"
description = "Shows how to create systems that can be reused with different types"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "hierarchy"
path = "examples/ecs/hierarchy.rs"
doc-scrape-examples = true
[package.metadata.example.hierarchy]
name = "Hierarchy"
description = "Creates a hierarchy of parents and children entities"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "immutable_components"
path = "examples/ecs/immutable_components.rs"
doc-scrape-examples = true
[package.metadata.example.immutable_components]
name = "Immutable Components"
description = "Demonstrates the creation and utility of immutable components"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "iter_combinations"
path = "examples/ecs/iter_combinations.rs"
doc-scrape-examples = true
[package.metadata.example.iter_combinations]
name = "Iter Combinations"
description = "Shows how to iterate over combinations of query results"
category = "ECS (Entity Component System)"
wasm = true
[[example]]
name = "one_shot_systems"
path = "examples/ecs/one_shot_systems.rs"
doc-scrape-examples = true
[package.metadata.example.one_shot_systems]
name = "One Shot Systems"
description = "Shows how to flexibly run systems without scheduling them"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "parallel_query"
path = "examples/ecs/parallel_query.rs"
doc-scrape-examples = true
[package.metadata.example.parallel_query]
name = "Parallel Query"
description = "Illustrates parallel queries with `ParallelIterator`"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "removal_detection"
path = "examples/ecs/removal_detection.rs"
doc-scrape-examples = true
[package.metadata.example.removal_detection]
name = "Removal Detection"
description = "Query for entities that had a specific component removed earlier in the current frame"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "run_conditions"
path = "examples/ecs/run_conditions.rs"
doc-scrape-examples = true
[package.metadata.example.run_conditions]
name = "Run Conditions"
description = "Run systems only when one or multiple conditions are met"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "fallible_params"
path = "examples/ecs/fallible_params.rs"
doc-scrape-examples = true
[package.metadata.example.fallible_params]
name = "Fallible System Parameters"
description = "Systems are skipped if their parameters cannot be acquired"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "fallible_systems"
path = "examples/ecs/fallible_systems.rs"
doc-scrape-examples = true
[package.metadata.example.fallible_systems]
name = "Fallible Systems"
description = "Systems that return results to handle errors"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "startup_system"
path = "examples/ecs/startup_system.rs"
doc-scrape-examples = true
[package.metadata.example.startup_system]
name = "Startup System"
description = "Demonstrates a startup system (one that runs once when the app starts up)"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "states"
path = "examples/state/states.rs"
doc-scrape-examples = true
required-features = ["bevy_dev_tools"]
[package.metadata.example.states]
name = "States"
description = "Illustrates how to use States to control transitioning from a Menu state to an InGame state."
category = "State"
wasm = false
[[example]]
name = "sub_states"
path = "examples/state/sub_states.rs"
doc-scrape-examples = true
required-features = ["bevy_dev_tools"]
[package.metadata.example.sub_states]
name = "Sub States"
description = "Using Sub States for hierarchical state handling."
category = "State"
wasm = false
[[example]]
name = "computed_states"
path = "examples/state/computed_states.rs"
doc-scrape-examples = true
required-features = ["bevy_dev_tools"]
[package.metadata.example.computed_states]
name = "Computed States"
description = "Advanced state patterns using Computed States."
category = "State"
wasm = false
[[example]]
name = "custom_transitions"
path = "examples/state/custom_transitions.rs"
doc-scrape-examples = true
required-features = ["bevy_dev_tools"]
[package.metadata.example.custom_transitions]
name = "Custom State Transition Behavior"
description = "Creating and working with custom state transition schedules."
category = "State"
wasm = false
[[example]]
name = "system_piping"
path = "examples/ecs/system_piping.rs"
doc-scrape-examples = true
[package.metadata.example.system_piping]
name = "System Piping"
description = "Pipe the output of one system into a second, allowing you to handle any errors gracefully"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "system_closure"
path = "examples/ecs/system_closure.rs"
doc-scrape-examples = true
[package.metadata.example.system_closure]
name = "System Closure"
description = "Show how to use closures as systems, and how to configure `Local` variables by capturing external state"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "system_param"
path = "examples/ecs/system_param.rs"
doc-scrape-examples = true
[package.metadata.example.system_param]
name = "System Parameter"
description = "Illustrates creating custom system parameters with `SystemParam`"
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "system_stepping"
path = "examples/ecs/system_stepping.rs"
doc-scrape-examples = true
required-features = ["bevy_debug_stepping"]
[package.metadata.example.system_stepping]
name = "System Stepping"
description = "Demonstrate stepping through systems in order of execution."
category = "ECS (Entity Component System)"
wasm = false
# Time
[[example]]
name = "time"
path = "examples/time/time.rs"
doc-scrape-examples = true
[package.metadata.example.time]
name = "Time handling"
description = "Explains how Time is handled in ECS"
category = "Time"
wasm = false
[[example]]
name = "virtual_time"
path = "examples/time/virtual_time.rs"
doc-scrape-examples = true
[package.metadata.example.virtual_time]
name = "Virtual time"
description = "Shows how `Time<Virtual>` can be used to pause, resume, slow down and speed up a game."
category = "Time"
wasm = false
[[example]]
name = "timers"
path = "examples/time/timers.rs"
doc-scrape-examples = true
[package.metadata.example.timers]
name = "Timers"
description = "Illustrates ticking `Timer` resources inside systems and handling their state"
category = "Time"
wasm = false
# Games
[[example]]
name = "alien_cake_addict"
path = "examples/games/alien_cake_addict.rs"
doc-scrape-examples = true
[package.metadata.example.alien_cake_addict]
name = "Alien Cake Addict"
description = "Eat the cakes. Eat them all. An example 3D game"
category = "Games"
wasm = true
[[example]]
name = "breakout"
path = "examples/games/breakout.rs"
doc-scrape-examples = true
[package.metadata.example.breakout]
name = "Breakout"
description = "An implementation of the classic game \"Breakout\"."
category = "Games"
wasm = true
[[example]]
name = "contributors"
path = "examples/games/contributors.rs"
doc-scrape-examples = true
[package.metadata.example.contributors]
name = "Contributors"
description = "Displays each contributor as a bouncy bevy-ball!"
category = "Games"
wasm = true
[[example]]
name = "desk_toy"
path = "examples/games/desk_toy.rs"
doc-scrape-examples = true
[package.metadata.example.desk_toy]
name = "Desk Toy"
description = "Bevy logo as a desk toy using transparent windows! Now with Googly Eyes!"
category = "Games"
wasm = false
[[example]]
name = "game_menu"
path = "examples/games/game_menu.rs"
doc-scrape-examples = true
[package.metadata.example.game_menu]
name = "Game Menu"
description = "A simple game menu"
category = "Games"
wasm = true
[[example]]
name = "loading_screen"
path = "examples/games/loading_screen.rs"
doc-scrape-examples = true
[package.metadata.example.loading_screen]
name = "Loading Screen"
description = "Demonstrates how to create a loading screen that waits for all assets to be loaded and render pipelines to be compiled."
category = "Games"
wasm = true
# Input
[[example]]
name = "char_input_events"
path = "examples/input/char_input_events.rs"
doc-scrape-examples = true
[package.metadata.example.char_input_events]
name = "Char Input Events"
description = "Prints out all chars as they are inputted"
category = "Input"
wasm = false
[[example]]
name = "gamepad_input"
path = "examples/input/gamepad_input.rs"
doc-scrape-examples = true
[package.metadata.example.gamepad_input]
name = "Gamepad Input"
description = "Shows handling of gamepad input, connections, and disconnections"
category = "Input"
wasm = false
[[example]]
name = "gamepad_input_events"
path = "examples/input/gamepad_input_events.rs"
doc-scrape-examples = true
[package.metadata.example.gamepad_input_events]
name = "Gamepad Input Events"
description = "Iterates and prints gamepad input and connection events"
category = "Input"
wasm = false
[[example]]
name = "gamepad_rumble"
path = "examples/input/gamepad_rumble.rs"
doc-scrape-examples = true
[package.metadata.example.gamepad_rumble]
name = "Gamepad Rumble"
description = "Shows how to rumble a gamepad using force feedback"
category = "Input"
wasm = false
[[example]]
name = "keyboard_input"
path = "examples/input/keyboard_input.rs"
doc-scrape-examples = true
[package.metadata.example.keyboard_input]
name = "Keyboard Input"
description = "Demonstrates handling a key press/release"
category = "Input"
wasm = false
[[example]]
name = "keyboard_modifiers"
path = "examples/input/keyboard_modifiers.rs"
doc-scrape-examples = true
[package.metadata.example.keyboard_modifiers]
name = "Keyboard Modifiers"
description = "Demonstrates using key modifiers (ctrl, shift)"
category = "Input"
wasm = false
[[example]]
name = "keyboard_input_events"
path = "examples/input/keyboard_input_events.rs"
doc-scrape-examples = true
[package.metadata.example.keyboard_input_events]
name = "Keyboard Input Events"
description = "Prints out all keyboard events"
category = "Input"
wasm = false
[[example]]
name = "mouse_input"
path = "examples/input/mouse_input.rs"
doc-scrape-examples = true
[package.metadata.example.mouse_input]
name = "Mouse Input"
description = "Demonstrates handling a mouse button press/release"
category = "Input"
wasm = false
[[example]]
name = "mouse_input_events"
path = "examples/input/mouse_input_events.rs"
doc-scrape-examples = true
[package.metadata.example.mouse_input_events]
name = "Mouse Input Events"
description = "Prints out all mouse events (buttons, movement, etc.)"
category = "Input"
wasm = false
[[example]]
name = "mouse_grab"
path = "examples/input/mouse_grab.rs"
doc-scrape-examples = true
[package.metadata.example.mouse_grab]
name = "Mouse Grab"
description = "Demonstrates how to grab the mouse, locking the cursor to the app's screen"
category = "Input"
wasm = false
[[example]]
name = "touch_input"
path = "examples/input/touch_input.rs"
doc-scrape-examples = true
[package.metadata.example.touch_input]
name = "Touch Input"
description = "Displays touch presses, releases, and cancels"
category = "Input"
wasm = false
[[example]]
name = "touch_input_events"
path = "examples/input/touch_input_events.rs"
doc-scrape-examples = true
[package.metadata.example.touch_input_events]
name = "Touch Input Events"
description = "Prints out all touch inputs"
category = "Input"
wasm = false
[[example]]
name = "text_input"
path = "examples/input/text_input.rs"
doc-scrape-examples = true
[package.metadata.example.text_input]
name = "Text Input"
description = "Simple text input with IME support"
category = "Input"
wasm = false
# Reflection
[[example]]
name = "reflection"
path = "examples/reflection/reflection.rs"
doc-scrape-examples = true
[package.metadata.example.reflection]
name = "Reflection"
description = "Demonstrates how reflection in Bevy provides a way to dynamically interact with Rust types"
category = "Reflection"
wasm = false
[[example]]
name = "custom_attributes"
path = "examples/reflection/custom_attributes.rs"
doc-scrape-examples = true
[package.metadata.example.custom_attributes]
name = "Custom Attributes"
description = "Registering and accessing custom attributes on reflected types"
category = "Reflection"
wasm = false
[[example]]
name = "dynamic_types"
path = "examples/reflection/dynamic_types.rs"
doc-scrape-examples = true
[package.metadata.example.dynamic_types]
name = "Dynamic Types"
description = "How dynamic types are used with reflection"
category = "Reflection"
wasm = false
[[example]]
name = "function_reflection"
path = "examples/reflection/function_reflection.rs"
doc-scrape-examples = true
required-features = ["reflect_functions"]
[package.metadata.example.function_reflection]
name = "Function Reflection"
description = "Demonstrates how functions can be called dynamically using reflection"
category = "Reflection"
wasm = false
[[example]]
name = "generic_reflection"
path = "examples/reflection/generic_reflection.rs"
doc-scrape-examples = true
[package.metadata.example.generic_reflection]
name = "Generic Reflection"
description = "Registers concrete instances of generic types that may be used with reflection"
category = "Reflection"
wasm = false
[[example]]
name = "reflection_types"
path = "examples/reflection/reflection_types.rs"
doc-scrape-examples = true
[package.metadata.example.reflection_types]
name = "Reflection Types"
description = "Illustrates the various reflection types available"
category = "Reflection"
wasm = false
[[example]]
name = "type_data"
path = "examples/reflection/type_data.rs"
doc-scrape-examples = true
[package.metadata.example.type_data]
name = "Type Data"
description = "Demonstrates how to create and use type data"
category = "Reflection"
wasm = false
# Scene
[[example]]
name = "scene"
path = "examples/scene/scene.rs"
doc-scrape-examples = true
[package.metadata.example.scene]
name = "Scene"
description = "Demonstrates loading from and saving scenes to files"
category = "Scene"
wasm = false
# Shaders
[[package.metadata.example_category]]
name = "Shaders"
description = """
These examples demonstrate how to implement different shaders in user code.
A shader in its most common usage is a small program that is run by the GPU per-vertex in a mesh (a vertex shader) or per-affected-screen-fragment (a fragment shader.) The GPU executes these programs in a highly parallel way.
There are also compute shaders which are used for more general processing leveraging the GPU's parallelism.
"""
[[example]]
name = "custom_vertex_attribute"
path = "examples/shader/custom_vertex_attribute.rs"
doc-scrape-examples = true
[package.metadata.example.custom_vertex_attribute]
name = "Custom Vertex Attribute"
description = "A shader that reads a mesh's custom vertex attribute"
category = "Shaders"
wasm = true
[[example]]
name = "custom_post_processing"
path = "examples/shader/custom_post_processing.rs"
doc-scrape-examples = true
[package.metadata.example.custom_post_processing]
name = "Post Processing - Custom Render Pass"
description = "A custom post processing effect, using a custom render pass that runs after the main pass"
category = "Shaders"
wasm = true
[[example]]
name = "shader_defs"
path = "examples/shader/shader_defs.rs"
doc-scrape-examples = true
[package.metadata.example.shader_defs]
name = "Shader Defs"
description = "A shader that uses \"shaders defs\" (a bevy tool to selectively toggle parts of a shader)"
category = "Shaders"
wasm = true
[[example]]
name = "shader_material"
path = "examples/shader/shader_material.rs"
doc-scrape-examples = true
[package.metadata.example.shader_material]
name = "Material"
description = "A shader and a material that uses it"
category = "Shaders"
wasm = true
[[example]]
name = "shader_material_2d"
path = "examples/shader/shader_material_2d.rs"
doc-scrape-examples = true
[package.metadata.example.shader_material_2d]
name = "Material"
description = "A shader and a material that uses it on a 2d mesh"
category = "Shaders"
wasm = true
[[example]]
name = "extended_material"
path = "examples/shader/extended_material.rs"
doc-scrape-examples = true
[package.metadata.example.extended_material]
name = "Extended Material"
description = "A custom shader that builds on the standard material"
category = "Shaders"
wasm = true
[[example]]
name = "shader_prepass"
path = "examples/shader/shader_prepass.rs"
doc-scrape-examples = true
[package.metadata.example.shader_prepass]
name = "Material Prepass"
description = "A shader that uses the various textures generated by the prepass"
category = "Shaders"
wasm = false
[[example]]
name = "shader_material_screenspace_texture"
path = "examples/shader/shader_material_screenspace_texture.rs"
doc-scrape-examples = true
[package.metadata.example.shader_material_screenspace_texture]
name = "Material - Screenspace Texture"
description = "A shader that samples a texture with view-independent UV coordinates"
category = "Shaders"
wasm = true
[[example]]
name = "shader_material_glsl"
path = "examples/shader/shader_material_glsl.rs"
doc-scrape-examples = true
required-features = ["shader_format_glsl"]
[package.metadata.example.shader_material_glsl]
name = "Material - GLSL"
description = "A shader that uses the GLSL shading language"
category = "Shaders"
wasm = true
[[example]]
name = "custom_shader_instancing"
path = "examples/shader/custom_shader_instancing.rs"
doc-scrape-examples = true
[package.metadata.example.custom_shader_instancing]
name = "Instancing"
description = "A shader that renders a mesh multiple times in one draw call using low level rendering api"
category = "Shaders"
wasm = true
[[example]]
name = "automatic_instancing"
path = "examples/shader/automatic_instancing.rs"
doc-scrape-examples = true
[package.metadata.example.automatic_instancing]
name = "Instancing"
description = "Shows that multiple instances of a cube are automatically instanced in one draw call"
category = "Shaders"
wasm = true
[[example]]
name = "animate_shader"
path = "examples/shader/animate_shader.rs"
doc-scrape-examples = true
[package.metadata.example.animate_shader]
name = "Animated"
description = "A shader that uses dynamic data like the time since startup"
category = "Shaders"
wasm = true
[[example]]
name = "compute_shader_game_of_life"
path = "examples/shader/compute_shader_game_of_life.rs"
doc-scrape-examples = true
[package.metadata.example.compute_shader_game_of_life]
name = "Compute - Game of Life"
description = "A compute shader that simulates Conway's Game of Life"
category = "Shaders"
wasm = false
[[example]]
name = "gpu_readback"
path = "examples/shader/gpu_readback.rs"
doc-scrape-examples = true
[package.metadata.example.gpu_readback]
name = "GPU readback"
description = "A very simple compute shader that writes to a buffer that is read by the cpu"
category = "Shaders"
wasm = false
[[example]]
name = "array_texture"
path = "examples/shader/array_texture.rs"
doc-scrape-examples = true
[package.metadata.example.array_texture]
name = "Array Texture"
description = "A shader that shows how to reuse the core bevy PBR shading functionality in a custom material that obtains the base color from an array texture."
category = "Shaders"
wasm = true
[[example]]
name = "texture_binding_array"
path = "examples/shader/texture_binding_array.rs"
doc-scrape-examples = true
[package.metadata.example.texture_binding_array]
name = "Texture Binding Array (Bindless Textures)"
description = "A shader that shows how to bind and sample multiple textures as a binding array (a.k.a. bindless textures)."
category = "Shaders"
wasm = false
[[example]]
name = "storage_buffer"
path = "examples/shader/storage_buffer.rs"
doc-scrape-examples = true
[package.metadata.example.storage_buffer]
name = "Storage Buffer"
description = "A shader that shows how to bind a storage buffer using a custom material."
category = "Shaders"
wasm = true
[[example]]
name = "specialized_mesh_pipeline"
path = "examples/shader/specialized_mesh_pipeline.rs"
doc-scrape-examples = true
[package.metadata.example.specialized_mesh_pipeline]
name = "Specialized Mesh Pipeline"
description = "Demonstrates how to write a specialized mesh pipeline"
category = "Shaders"
wasm = true
# Stress tests
[[package.metadata.example_category]]
name = "Stress Tests"
description = """
These examples are used to test the performance and stability of various parts of the engine in an isolated way.
Due to the focus on performance it's recommended to run the stress tests in release mode:
```sh
cargo run --release --example <example name>
```
"""
[[example]]
name = "bevymark"
path = "examples/stress_tests/bevymark.rs"
doc-scrape-examples = true
[package.metadata.example.bevymark]
name = "Bevymark"
description = "A heavy sprite rendering workload to benchmark your system with Bevy"
category = "Stress Tests"
wasm = true
[[example]]
name = "many_animated_sprites"
path = "examples/stress_tests/many_animated_sprites.rs"
doc-scrape-examples = true
[package.metadata.example.many_animated_sprites]
name = "Many Animated Sprites"
description = "Displays many animated sprites in a grid arrangement with slight offsets to their animation timers. Used for performance testing."
category = "Stress Tests"
wasm = true
[[example]]
name = "many_buttons"
path = "examples/stress_tests/many_buttons.rs"
doc-scrape-examples = true
[package.metadata.example.many_buttons]
name = "Many Buttons"
description = "Test rendering of many UI elements"
category = "Stress Tests"
wasm = true
[[example]]
name = "many_cameras_lights"
path = "examples/stress_tests/many_cameras_lights.rs"
doc-scrape-examples = true
[package.metadata.example.many_cameras_lights]
name = "Many Cameras & Lights"
description = "Test rendering of many cameras and lights"
category = "Stress Tests"
wasm = true
[[example]]
name = "many_cubes"
path = "examples/stress_tests/many_cubes.rs"
doc-scrape-examples = true
[package.metadata.example.many_cubes]
name = "Many Cubes"
description = "Simple benchmark to test per-entity draw overhead. Run with the `sphere` argument to test frustum culling"
category = "Stress Tests"
wasm = true
[[example]]
name = "many_gizmos"
path = "examples/stress_tests/many_gizmos.rs"
doc-scrape-examples = true
[package.metadata.example.many_gizmos]
name = "Many Gizmos"
description = "Test rendering of many gizmos"
category = "Stress Tests"
wasm = true
[[example]]
name = "many_foxes"
path = "examples/stress_tests/many_foxes.rs"
doc-scrape-examples = true
[package.metadata.example.many_foxes]
name = "Many Foxes"
description = "Loads an animated fox model and spawns lots of them. Good for testing skinned mesh performance. Takes an unsigned integer argument for the number of foxes to spawn. Defaults to 1000"
category = "Stress Tests"
wasm = true
[[example]]
name = "many_glyphs"
path = "examples/stress_tests/many_glyphs.rs"
doc-scrape-examples = true
[package.metadata.example.many_glyphs]
name = "Many Glyphs"
description = "Simple benchmark to test text rendering."
category = "Stress Tests"
wasm = true
[[example]]
name = "many_lights"
path = "examples/stress_tests/many_lights.rs"
doc-scrape-examples = true
[package.metadata.example.many_lights]
name = "Many Lights"
description = "Simple benchmark to test rendering many point lights. Run with `WGPU_SETTINGS_PRIO=webgl2` to restrict to uniform buffers and max 256 lights"
category = "Stress Tests"
wasm = true
[[example]]
name = "many_sprites"
path = "examples/stress_tests/many_sprites.rs"
doc-scrape-examples = true
[package.metadata.example.many_sprites]
name = "Many Sprites"
description = "Displays many sprites in a grid arrangement! Used for performance testing. Use `--colored` to enable color tinted sprites."
category = "Stress Tests"
wasm = true
[[example]]
name = "transform_hierarchy"
path = "examples/stress_tests/transform_hierarchy.rs"
doc-scrape-examples = true
[package.metadata.example.transform_hierarchy]
name = "Transform Hierarchy"
description = "Various test cases for hierarchy and transform propagation performance"
category = "Stress Tests"
wasm = false
[[example]]
name = "text_pipeline"
path = "examples/stress_tests/text_pipeline.rs"
doc-scrape-examples = true
[package.metadata.example.text_pipeline]
name = "Text Pipeline"
description = "Text Pipeline benchmark"
category = "Stress Tests"
wasm = false
# Tools
[[example]]
name = "scene_viewer"
path = "examples/tools/scene_viewer/main.rs"
doc-scrape-examples = true
[package.metadata.example.scene_viewer]
name = "Scene Viewer"
description = "A simple way to view glTF models with Bevy. Just run `cargo run --release --example scene_viewer /path/to/model.gltf#Scene0`, replacing the path as appropriate. With no arguments it will load the FieldHelmet glTF model from the repository assets subdirectory"
category = "Tools"
wasm = true
[[example]]
name = "gamepad_viewer"
path = "examples/tools/gamepad_viewer.rs"
doc-scrape-examples = true
[package.metadata.example.gamepad_viewer]
name = "Gamepad Viewer"
description = "Shows a visualization of gamepad buttons, sticks, and triggers"
category = "Tools"
wasm = true
[[example]]
name = "nondeterministic_system_order"
path = "examples/ecs/nondeterministic_system_order.rs"
doc-scrape-examples = true
[package.metadata.example.nondeterministic_system_order]
name = "Nondeterministic System Order"
description = "Systems run in parallel, but their order isn't always deterministic. Here's how to detect and fix this."
category = "ECS (Entity Component System)"
wasm = false
[[example]]
name = "observers"
path = "examples/ecs/observers.rs"
doc-scrape-examples = true
[package.metadata.example.observers]
name = "Observers"
description = "Demonstrates observers that react to events (both built-in life-cycle events and custom events)"
category = "ECS (Entity Component System)"
wasm = true
[[example]]
name = "observer_propagation"
path = "examples/ecs/observer_propagation.rs"
doc-scrape-examples = true
[package.metadata.example.observer_propagation]
name = "Observer Propagation"
description = "Demonstrates event propagation with observers"
category = "ECS (Entity Component System)"
wasm = true
[[example]]
name = "3d_rotation"
path = "examples/transforms/3d_rotation.rs"
doc-scrape-examples = true
[package.metadata.example.3d_rotation]
name = "3D Rotation"
description = "Illustrates how to (constantly) rotate an object around an axis"
category = "Transforms"
wasm = true
[[example]]
name = "align"
path = "examples/transforms/align.rs"
doc-scrape-examples = true
[package.metadata.example.align]
name = "Alignment"
description = "A demonstration of Transform's axis-alignment feature"
category = "Transforms"
wasm = true
[[example]]
name = "scale"
path = "examples/transforms/scale.rs"
doc-scrape-examples = true
[package.metadata.example.scale]
name = "Scale"
description = "Illustrates how to scale an object in each direction"
category = "Transforms"
wasm = true
[[example]]
name = "transform"
path = "examples/transforms/transform.rs"
doc-scrape-examples = true
[package.metadata.example.transform]
name = "Transform"
description = "Shows multiple transformations of objects"
category = "Transforms"
wasm = true
[[example]]
name = "translation"
path = "examples/transforms/translation.rs"
doc-scrape-examples = true
[package.metadata.example.translation]
name = "Translation"
description = "Illustrates how to move an object along an axis"
category = "Transforms"
wasm = true
# UI (User Interface)
[[example]]
name = "borders"
path = "examples/ui/borders.rs"
doc-scrape-examples = true
[package.metadata.example.borders]
name = "Borders"
description = "Demonstrates how to create a node with a border"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "box_shadow"
path = "examples/ui/box_shadow.rs"
doc-scrape-examples = true
[package.metadata.example.box_shadow]
name = "Box Shadow"
description = "Demonstrates how to create a node with a shadow"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "button"
path = "examples/ui/button.rs"
doc-scrape-examples = true
[package.metadata.example.button]
name = "Button"
description = "Illustrates creating and updating a button"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "display_and_visibility"
path = "examples/ui/display_and_visibility.rs"
doc-scrape-examples = true
[package.metadata.example.display_and_visibility]
name = "Display and Visibility"
description = "Demonstrates how Display and Visibility work in the UI."
category = "UI (User Interface)"
wasm = true
[[example]]
name = "window_fallthrough"
path = "examples/ui/window_fallthrough.rs"
doc-scrape-examples = true
[package.metadata.example.window_fallthrough]
name = "Window Fallthrough"
description = "Illustrates how to access `winit::window::Window`'s `hittest` functionality."
category = "UI (User Interface)"
wasm = false
[[example]]
name = "font_atlas_debug"
path = "examples/ui/font_atlas_debug.rs"
doc-scrape-examples = true
[package.metadata.example.font_atlas_debug]
name = "Font Atlas Debug"
description = "Illustrates how FontAtlases are populated (used to optimize text rendering internally)"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "overflow"
path = "examples/ui/overflow.rs"
doc-scrape-examples = true
[package.metadata.example.overflow]
name = "Overflow"
description = "Simple example demonstrating overflow behavior"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "overflow_clip_margin"
path = "examples/ui/overflow_clip_margin.rs"
doc-scrape-examples = true
[package.metadata.example.overflow_clip_margin]
name = "Overflow Clip Margin"
description = "Simple example demonstrating the OverflowClipMargin style property"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "overflow_debug"
path = "examples/ui/overflow_debug.rs"
doc-scrape-examples = true
[package.metadata.example.overflow_debug]
name = "Overflow and Clipping Debug"
description = "An example to debug overflow and clipping behavior"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "relative_cursor_position"
path = "examples/ui/relative_cursor_position.rs"
doc-scrape-examples = true
[package.metadata.example.relative_cursor_position]
name = "Relative Cursor Position"
description = "Showcases the RelativeCursorPosition component"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "render_ui_to_texture"
path = "examples/ui/render_ui_to_texture.rs"
doc-scrape-examples = true
[package.metadata.example.render_ui_to_texture]
name = "Render UI to Texture"
description = "An example of rendering UI as a part of a 3D world"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "size_constraints"
path = "examples/ui/size_constraints.rs"
doc-scrape-examples = true
[package.metadata.example.size_constraints]
name = "Size Constraints"
description = "Demonstrates how the to use the size constraints to control the size of a UI node."
category = "UI (User Interface)"
wasm = true
[[example]]
name = "text"
path = "examples/ui/text.rs"
doc-scrape-examples = true
[package.metadata.example.text]
name = "Text"
description = "Illustrates creating and updating text"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "text_debug"
path = "examples/ui/text_debug.rs"
doc-scrape-examples = true
[package.metadata.example.text_debug]
name = "Text Debug"
description = "An example for debugging text layout"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "flex_layout"
path = "examples/ui/flex_layout.rs"
doc-scrape-examples = true
[package.metadata.example.flex_layout]
name = "Flex Layout"
description = "Demonstrates how the AlignItems and JustifyContent properties can be composed to layout nodes and position text"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "text_wrap_debug"
path = "examples/ui/text_wrap_debug.rs"
doc-scrape-examples = true
[package.metadata.example.text_wrap_debug]
name = "Text Wrap Debug"
description = "Demonstrates text wrapping"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "ghost_nodes"
path = "examples/ui/ghost_nodes.rs"
doc-scrape-examples = true
required-features = ["ghost_nodes"]
[package.metadata.example.ghost_nodes]
name = "Ghost Nodes"
description = "Demonstrates the use of Ghost Nodes to skip entities in the UI layout hierarchy"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "grid"
path = "examples/ui/grid.rs"
doc-scrape-examples = true
[package.metadata.example.grid]
name = "CSS Grid"
description = "An example for CSS Grid layout"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "scroll"
path = "examples/ui/scroll.rs"
doc-scrape-examples = true
[package.metadata.example.scroll]
name = "Scroll"
description = "Demonstrates scrolling UI containers"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "transparency_ui"
path = "examples/ui/transparency_ui.rs"
doc-scrape-examples = true
[package.metadata.example.transparency_ui]
name = "Transparency UI"
description = "Demonstrates transparency for UI"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "z_index"
path = "examples/ui/z_index.rs"
doc-scrape-examples = true
[package.metadata.example.z_index]
name = "UI Z-Index"
description = "Demonstrates how to control the relative depth (z-position) of UI elements"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "ui_scaling"
path = "examples/ui/ui_scaling.rs"
doc-scrape-examples = true
[package.metadata.example.ui_scaling]
name = "UI Scaling"
description = "Illustrates how to scale the UI"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "ui_texture_atlas"
path = "examples/ui/ui_texture_atlas.rs"
doc-scrape-examples = true
[package.metadata.example.ui_texture_atlas]
name = "UI Texture Atlas"
description = "Illustrates how to use TextureAtlases in UI"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "ui_texture_slice"
path = "examples/ui/ui_texture_slice.rs"
doc-scrape-examples = true
[package.metadata.example.ui_texture_slice]
name = "UI Texture Slice"
description = "Illustrates how to use 9 Slicing in UI"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "ui_texture_slice_flip_and_tile"
path = "examples/ui/ui_texture_slice_flip_and_tile.rs"
doc-scrape-examples = true
[package.metadata.example.ui_texture_slice_flip_and_tile]
name = "UI Texture Slice Flipping and Tiling"
description = "Illustrates how to flip and tile images with 9 Slicing in UI"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "ui_texture_atlas_slice"
path = "examples/ui/ui_texture_atlas_slice.rs"
doc-scrape-examples = true
[package.metadata.example.ui_texture_atlas_slice]
name = "UI Texture Atlas Slice"
description = "Illustrates how to use 9 Slicing for TextureAtlases in UI"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "viewport_debug"
path = "examples/ui/viewport_debug.rs"
doc-scrape-examples = true
[package.metadata.example.viewport_debug]
name = "Viewport Debug"
description = "An example for debugging viewport coordinates"
category = "UI (User Interface)"
wasm = true
# Window
[[example]]
name = "clear_color"
path = "examples/window/clear_color.rs"
doc-scrape-examples = true
[package.metadata.example.clear_color]
name = "Clear Color"
description = "Creates a solid color window"
category = "Window"
wasm = true
[[example]]
name = "custom_user_event"
path = "examples/window/custom_user_event.rs"
doc-scrape-examples = true
[package.metadata.example.custom_user_event]
name = "Custom User Event"
description = "Handles custom user events within the event loop"
category = "Window"
wasm = true
[[example]]
name = "low_power"
path = "examples/window/low_power.rs"
doc-scrape-examples = true
[package.metadata.example.low_power]
name = "Low Power"
description = "Demonstrates settings to reduce power use for bevy applications"
category = "Window"
wasm = true
[[example]]
name = "multiple_windows"
path = "examples/window/multiple_windows.rs"
doc-scrape-examples = true
[package.metadata.example.multiple_windows]
name = "Multiple Windows"
description = "Demonstrates creating multiple windows, and rendering to them"
category = "Window"
wasm = false
[[example]]
name = "scale_factor_override"
path = "examples/window/scale_factor_override.rs"
doc-scrape-examples = true
[package.metadata.example.scale_factor_override]
name = "Scale Factor Override"
description = "Illustrates how to customize the default window settings"
category = "Window"
wasm = true
[[example]]
name = "screenshot"
path = "examples/window/screenshot.rs"
doc-scrape-examples = true
[package.metadata.example.screenshot]
name = "Screenshot"
description = "Shows how to save screenshots to disk"
category = "Window"
wasm = true
[[example]]
name = "transparent_window"
path = "examples/window/transparent_window.rs"
doc-scrape-examples = true
[package.metadata.example.transparent_window]
name = "Transparent Window"
description = "Illustrates making the window transparent and hiding the window decoration"
category = "Window"
wasm = false
[[example]]
name = "window_settings"
path = "examples/window/window_settings.rs"
doc-scrape-examples = true
[package.metadata.example.window_settings]
name = "Window Settings"
description = "Demonstrates customizing default window settings"
category = "Window"
wasm = true
[[example]]
name = "window_drag_move"
path = "examples/window/window_drag_move.rs"
doc-scrape-examples = true
[package.metadata.example.window_drag_move]
name = "Window Drag Move"
description = "Demonstrates drag move and drag resize without window decoration"
category = "Window"
wasm = false
[[example]]
name = "ambiguity_detection"
path = "tests/ecs/ambiguity_detection.rs"
doc-scrape-examples = true
[package.metadata.example.ambiguity_detection]
hidden = true
[[example]]
name = "resizing"
path = "tests/window/resizing.rs"
doc-scrape-examples = true
[package.metadata.example.resizing]
hidden = true
[[example]]
name = "minimizing"
path = "tests/window/minimizing.rs"
doc-scrape-examples = true
[package.metadata.example.minimizing]
hidden = true
[[example]]
name = "window_resizing"
path = "examples/window/window_resizing.rs"
doc-scrape-examples = true
[[example]]
name = "fallback_image"
path = "examples/shader/fallback_image.rs"
doc-scrape-examples = true
[[example]]
name = "reflection_probes"
path = "examples/3d/reflection_probes.rs"
doc-scrape-examples = true
[package.metadata.example.reflection_probes]
name = "Reflection Probes"
description = "Demonstrates reflection probes"
category = "3D Rendering"
wasm = false
[package.metadata.example.fallback_image]
hidden = true
[package.metadata.example.window_resizing]
name = "Window Resizing"
description = "Demonstrates resizing and responding to resizing a window"
category = "Window"
wasm = true
[[example]]
name = "ui_material"
path = "examples/ui/ui_material.rs"
doc-scrape-examples = true
[package.metadata.example.ui_material]
name = "UI Material"
description = "Demonstrates creating and using custom Ui materials"
category = "UI (User Interface)"
wasm = true
[[example]]
name = "cubic_splines"
path = "examples/math/cubic_splines.rs"
doc-scrape-examples = true
[package.metadata.example.cubic_splines]
name = "Cubic Splines"
description = "Exhibits different modes of constructing cubic curves using splines"
category = "Math"
wasm = true
[[example]]
name = "render_primitives"
path = "examples/math/render_primitives.rs"
doc-scrape-examples = true
[package.metadata.example.render_primitives]
name = "Rendering Primitives"
description = "Shows off rendering for all math primitives as both Meshes and Gizmos"
category = "Math"
wasm = true
# Math
[[example]]
name = "sampling_primitives"
path = "examples/math/sampling_primitives.rs"
doc-scrape-examples = true
[package.metadata.example.sampling_primitives]
name = "Sampling Primitives"
description = "Demonstrates all the primitives which can be sampled."
category = "Math"
wasm = true
[[example]]
name = "custom_primitives"
path = "examples/math/custom_primitives.rs"
doc-scrape-examples = true
[package.metadata.example.custom_primitives]
name = "Custom Primitives"
description = "Demonstrates how to add custom primitives and useful traits for them."
category = "Math"
wasm = true
[[example]]
name = "random_sampling"
path = "examples/math/random_sampling.rs"
doc-scrape-examples = true
[package.metadata.example.random_sampling]
name = "Random Sampling"
description = "Demonstrates how to sample random points from mathematical primitives"
category = "Math"
wasm = true
[[example]]
name = "smooth_follow"
path = "examples/movement/smooth_follow.rs"
doc-scrape-examples = true
[package.metadata.example.smooth_follow]
name = "Smooth Follow"
description = "Demonstrates how to make an entity smoothly follow another using interpolation"
category = "Math"
wasm = true
# Gizmos
[[example]]
name = "2d_gizmos"
path = "examples/gizmos/2d_gizmos.rs"
doc-scrape-examples = true
[package.metadata.example.2d_gizmos]
name = "2D Gizmos"
description = "A scene showcasing 2D gizmos"
category = "Gizmos"
wasm = true
[[example]]
name = "3d_gizmos"
path = "examples/gizmos/3d_gizmos.rs"
doc-scrape-examples = true
[package.metadata.example.3d_gizmos]
name = "3D Gizmos"
description = "A scene showcasing 3D gizmos"
category = "Gizmos"
wasm = true
[[example]]
name = "axes"
path = "examples/gizmos/axes.rs"
doc-scrape-examples = true
[package.metadata.example.axes]
name = "Axes"
description = "Demonstrates the function of axes gizmos"
category = "Gizmos"
wasm = true
[[example]]
name = "light_gizmos"
path = "examples/gizmos/light_gizmos.rs"
doc-scrape-examples = true
[package.metadata.example.light_gizmos]
name = "Light Gizmos"
description = "A scene showcasing light gizmos"
category = "Gizmos"
wasm = true
[[example]]
name = "fps_overlay"
path = "examples/dev_tools/fps_overlay.rs"
doc-scrape-examples = true
required-features = ["bevy_dev_tools"]
[[example]]
name = "2d_top_down_camera"
path = "examples/camera/2d_top_down_camera.rs"
doc-scrape-examples = true
[package.metadata.example.2d_top_down_camera]
name = "2D top-down camera"
description = "A 2D top-down camera smoothly following player movements"
category = "Camera"
wasm = true
[[example]]
name = "first_person_view_model"
path = "examples/camera/first_person_view_model.rs"
doc-scrape-examples = true
[package.metadata.example.first_person_view_model]
name = "First person view model"
description = "A first-person camera that uses a world model and a view model with different field of views (FOV)"
category = "Camera"
wasm = true
[[example]]
name = "projection_zoom"
path = "examples/camera/projection_zoom.rs"
doc-scrape-examples = true
[package.metadata.example.projection_zoom]
name = "Projection Zoom"
description = "Shows how to zoom orthographic and perspective projection cameras."
category = "Camera"
wasm = true
[[example]]
name = "camera_orbit"
path = "examples/camera/camera_orbit.rs"
doc-scrape-examples = true
[package.metadata.example.camera_orbit]
name = "Camera Orbit"
description = "Shows how to orbit a static scene using pitch, yaw, and roll."
category = "Camera"
wasm = true
[[example]]
name = "2d_screen_shake"
path = "examples/camera/2d_screen_shake.rs"
doc-scrape-examples = true
[package.metadata.example.2d_screen_shake]
name = "Screen Shake"
description = "A simple 2D screen shake effect"
category = "Camera"
wasm = true
[package.metadata.example.fps_overlay]
name = "FPS overlay"
description = "Demonstrates FPS overlay"
category = "Dev tools"
wasm = true
[[example]]
name = "visibility_range"
path = "examples/3d/visibility_range.rs"
doc-scrape-examples = true
[package.metadata.example.visibility_range]
name = "Visibility range"
description = "Demonstrates visibility ranges"
category = "3D Rendering"
wasm = true
[[example]]
name = "ssr"
path = "examples/3d/ssr.rs"
doc-scrape-examples = true
[package.metadata.example.ssr]
name = "Screen Space Reflections"
description = "Demonstrates screen space reflections with water ripples"
category = "3D Rendering"
wasm = false
[[example]]
name = "camera_sub_view"
path = "examples/3d/camera_sub_view.rs"
doc-scrape-examples = true
[package.metadata.example.camera_sub_view]
name = "Camera sub view"
description = "Demonstrates using different sub view effects on a camera"
category = "3D Rendering"
wasm = true
[[example]]
name = "color_grading"
path = "examples/3d/color_grading.rs"
doc-scrape-examples = true
[package.metadata.example.color_grading]
name = "Color grading"
description = "Demonstrates color grading"
category = "3D Rendering"
wasm = true
[[example]]
name = "clearcoat"
path = "examples/3d/clearcoat.rs"
doc-scrape-examples = true
required-features = ["pbr_multi_layer_material_textures"]
[package.metadata.example.clearcoat]
name = "Clearcoat"
description = "Demonstrates the clearcoat PBR feature"
category = "3D Rendering"
wasm = false
[[example]]
name = "depth_of_field"
path = "examples/3d/depth_of_field.rs"
doc-scrape-examples = true
[package.metadata.example.depth_of_field]
name = "Depth of field"
description = "Demonstrates depth of field"
category = "3D Rendering"
wasm = false
[[example]]
name = "volumetric_fog"
path = "examples/3d/volumetric_fog.rs"
doc-scrape-examples = true
[package.metadata.example.volumetric_fog]
name = "Volumetric fog"
description = "Demonstrates volumetric fog and lighting"
category = "3D Rendering"
wasm = true
[[example]]
name = "client"
path = "examples/remote/client.rs"
doc-scrape-examples = true
required-features = ["bevy_remote"]
[package.metadata.example.client]
name = "client"
description = "A simple command line client that can control Bevy apps via the BRP"
category = "Remote Protocol"
wasm = false
[[example]]
name = "server"
path = "examples/remote/server.rs"
doc-scrape-examples = true
required-features = ["bevy_remote"]
[package.metadata.example.server]
name = "server"
description = "A Bevy app that you can connect to with the BRP and edit"
category = "Remote Protocol"
wasm = false
[[example]]
name = "anisotropy"
path = "examples/3d/anisotropy.rs"
doc-scrape-examples = true
required-features = ["jpeg", "pbr_anisotropy_texture"]
[package.metadata.example.anisotropy]
name = "Anisotropy"
description = "Displays an example model with anisotropy"
category = "3D Rendering"
wasm = false
[[example]]
name = "custom_phase_item"
path = "examples/shader/custom_phase_item.rs"
doc-scrape-examples = true
[package.metadata.example.custom_phase_item]
name = "Custom phase item"
description = "Demonstrates how to enqueue custom draw commands in a render phase"
category = "Shaders"
wasm = true
[[example]]
name = "fog_volumes"
path = "examples/3d/fog_volumes.rs"
doc-scrape-examples = true
[package.metadata.example.fog_volumes]
name = "Fog volumes"
description = "Demonstrates fog volumes"
category = "3D Rendering"
wasm = false
[[example]]
name = "scrolling_fog"
path = "examples/3d/scrolling_fog.rs"
doc-scrape-examples = true
[package.metadata.example.scrolling_fog]
name = "Scrolling fog"
description = "Demonstrates how to create the effect of fog moving in the wind"
category = "3D Rendering"
wasm = false
[[example]]
name = "physics_in_fixed_timestep"
path = "examples/movement/physics_in_fixed_timestep.rs"
doc-scrape-examples = true
[package.metadata.example.physics_in_fixed_timestep]
name = "Run physics in a fixed timestep"
description = "Handles input, physics, and rendering in an industry-standard way by using a fixed timestep"
category = "Movement"
wasm = true
[[example]]
name = "post_processing"
path = "examples/3d/post_processing.rs"
doc-scrape-examples = true
[package.metadata.example.post_processing]
name = "Built-in postprocessing"
description = "Demonstrates the built-in postprocessing features"
category = "3D Rendering"
wasm = true
[[example]]
name = "rotate_environment_map"
path = "examples/3d/rotate_environment_map.rs"
doc-scrape-examples = true
required-features = ["pbr_multi_layer_material_textures"]
[package.metadata.example.rotate_environment_map]
name = "Rotate Environment Map"
description = "Demonstrates how to rotate the skybox and the environment map simultaneously"
category = "3D Rendering"
wasm = false
[[example]]
name = "mesh_picking"
path = "examples/picking/mesh_picking.rs"
doc-scrape-examples = true
required-features = ["bevy_mesh_picking_backend"]
[package.metadata.example.mesh_picking]
name = "Mesh Picking"
description = "Demonstrates picking meshes"
category = "Picking"
wasm = true
[[example]]
name = "simple_picking"
path = "examples/picking/simple_picking.rs"
doc-scrape-examples = true
required-features = ["bevy_picking"]
[package.metadata.example.simple_picking]
name = "Showcases simple picking events and usage"
description = "Demonstrates how to use picking events to spawn simple objects"
category = "Picking"
wasm = true
[[example]]
name = "sprite_picking"
path = "examples/picking/sprite_picking.rs"
doc-scrape-examples = true
required-features = ["bevy_sprite_picking_backend"]
[package.metadata.example.sprite_picking]
name = "Sprite Picking"
description = "Demonstrates picking sprites and sprite atlases"
category = "Picking"
wasm = true
required-features = ["bevy_sprite_picking_backend"]
[[example]]
name = "animation_masks"
path = "examples/animation/animation_masks.rs"
doc-scrape-examples = true
[package.metadata.example.animation_masks]
name = "Animation Masks"
description = "Demonstrates animation masks"
category = "Animation"
wasm = true
[[example]]
name = "pcss"
path = "examples/3d/pcss.rs"
doc-scrape-examples = true
required-features = ["experimental_pbr_pcss"]
[package.metadata.example.pcss]
name = "Percentage-closer soft shadows"
description = "Demonstrates percentage-closer soft shadows (PCSS)"
category = "3D Rendering"
wasm = false
[[example]]
name = "animated_ui"
path = "examples/animation/animated_ui.rs"
doc-scrape-examples = true
[package.metadata.example.animated_ui]
name = "Animated UI"
description = "Shows how to use animation clips to animate UI properties"
category = "Animation"
wasm = true
[[example]]
name = "shader_material_bindless"
path = "examples/shader/shader_material_bindless.rs"
doc-scrape-examples = true
[package.metadata.example.shader_material_bindless]
name = "Material - Bindless"
description = "Demonstrates how to make materials that use bindless textures"
category = "Shaders"
wasm = true
[profile.wasm-release]
inherits = "release"
opt-level = "z"
lto = "fat"
codegen-units = 1
[profile.stress-test]
inherits = "release"
lto = "fat"
panic = "abort"
[package.metadata.docs.rs]
# This cfg is needed so that #[doc(fake_variadic)] is correctly propagated for
# impls for re-exported traits. See https://github.com/rust-lang/cargo/issues/8811
# for details on why this is needed. Since dependencies don't expect to be built
# with `--cfg docsrs` (and thus fail to compile) we use a different cfg.
rustc-args = ["--cfg", "docsrs_dep"]
rustdoc-args = ["-Zunstable-options", "--generate-link-to-definition"]
all-features = true
cargo-args = ["-Zunstable-options", "-Zrustdoc-scrape-examples"]
[[example]]
name = "monitor_info"
path = "examples/window/monitor_info.rs"
doc-scrape-examples = true
[package.metadata.example.monitor_info]
name = "Monitor info"
description = "Displays information about available monitors (displays)."
category = "Window"
wasm = false
# Testbed
[[example]]
name = "testbed_2d"
path = "examples/testbed/2d.rs"
doc-scrape-examples = true
[package.metadata.example.testbed_2d]
hidden = true
[[example]]
name = "testbed_3d"
path = "examples/testbed/3d.rs"
doc-scrape-examples = true
[package.metadata.example.testbed_3d]
hidden = true
[[example]]
name = "testbed_ui"
path = "examples/testbed/ui.rs"
doc-scrape-examples = true
[package.metadata.example.testbed_ui]
hidden = true
[[example]]
name = "testbed_ui_layout_rounding"
path = "examples/testbed/ui_layout_rounding.rs"
doc-scrape-examples = true
[package.metadata.example.testbed_ui_layout_rounding]
hidden = true
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