Enhance bevymark (#9674)
# Objective - In preparation for an initial 2D/3D mesh batching/instancing PR, enhance `bevymark` to support some different test modes that enable comparison and optimisation of performance ## Solution - Use `argh` for command line interface options - Use seeded `StdRng` for reproducible random number generation - Add a mode for testing 2D meshes that includes an option to uniquely vary the data of each material by setting a random flat colour on the `ColorMaterial`. - Add a way of specifying the number of different textures to use for sprites or meshes. These are generated at the same resolution as the Bevy bird icon, but are just random flat colours for testing. - Add a benchmark mode that spawns all entities during setup, and animates the entities using a fixed delta time for reproducible animation. The initially-spawned entities are still spawned in waves and animated as they would have been had they spawned at intervals. --------- Co-authored-by: IceSentry <IceSentry@users.noreply.github.com>
This commit is contained in:
Robert Swain
GitHub
parent
870d46ec2e
commit
e9b3aeb38f
@ -2,18 +2,24 @@
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//!
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//! Usage: spawn more entities by clicking on the screen.
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use std::str::FromStr;
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use argh::FromArgs;
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use bevy::{
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diagnostic::{DiagnosticsStore, FrameTimeDiagnosticsPlugin, LogDiagnosticsPlugin},
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prelude::*,
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render::render_resource::{Extent3d, TextureDimension, TextureFormat},
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sprite::{MaterialMesh2dBundle, Mesh2dHandle},
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window::{PresentMode, WindowResolution},
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};
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use rand::{rngs::StdRng, thread_rng, Rng, SeedableRng};
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use rand::{rngs::StdRng, seq::SliceRandom, Rng, SeedableRng};
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const BIRDS_PER_SECOND: u32 = 10000;
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const GRAVITY: f32 = -9.8 * 100.0;
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const MAX_VELOCITY: f32 = 750.;
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const BIRD_SCALE: f32 = 0.15;
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const HALF_BIRD_SIZE: f32 = 256. * BIRD_SCALE * 0.5;
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const BIRD_TEXTURE_SIZE: usize = 256;
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const HALF_BIRD_SIZE: f32 = BIRD_TEXTURE_SIZE as f32 * BIRD_SCALE * 0.5;
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#[derive(Resource)]
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struct BevyCounter {
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@ -26,7 +32,62 @@ struct Bird {
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velocity: Vec3,
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}
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#[derive(FromArgs, Resource)]
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/// `bevymark` sprite / 2D mesh stress test
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struct Args {
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/// whether to use sprite or mesh2d
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#[argh(option, default = "Mode::Sprite")]
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mode: Mode,
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/// whether to step animations by a fixed amount such that each frame is the same across runs.
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/// If spawning waves, all are spawned up-front to immediately start rendering at the heaviest
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/// load.
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#[argh(switch)]
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benchmark: bool,
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/// how many birds to spawn per wave.
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#[argh(option, default = "0")]
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per_wave: usize,
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/// the number of waves to spawn.
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#[argh(option, default = "0")]
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waves: usize,
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/// whether to vary the material data in each instance.
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#[argh(switch)]
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vary_per_instance: bool,
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/// the number of different textures from which to randomly select the material color. 0 means no textures.
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#[argh(option, default = "1")]
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material_texture_count: usize,
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}
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#[derive(Default, Clone)]
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enum Mode {
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#[default]
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Sprite,
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Mesh2d,
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}
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impl FromStr for Mode {
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type Err = String;
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fn from_str(s: &str) -> Result<Self, Self::Err> {
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match s {
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"sprite" => Ok(Self::Sprite),
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"mesh2d" => Ok(Self::Mesh2d),
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_ => Err(format!(
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"Unknown mode: '{s}', valid modes: 'sprite', 'mesh2d'"
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)),
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}
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}
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}
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const FIXED_TIMESTEP: f32 = 0.2;
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fn main() {
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let args: Args = argh::from_env();
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App::new()
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.add_plugins((
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DefaultPlugins.set(WindowPlugin {
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@ -41,6 +102,7 @@ fn main() {
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FrameTimeDiagnosticsPlugin,
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LogDiagnosticsPlugin::default(),
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))
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.insert_resource(args)
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.insert_resource(BevyCounter {
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count: 0,
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color: Color::WHITE,
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@ -56,50 +118,93 @@ fn main() {
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counter_system,
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),
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)
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.insert_resource(FixedTime::new_from_secs(0.2))
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.insert_resource(FixedTime::new_from_secs(FIXED_TIMESTEP))
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.run();
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}
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#[derive(Resource)]
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struct BirdScheduled {
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wave: usize,
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waves: usize,
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per_wave: usize,
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}
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fn scheduled_spawner(
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mut commands: Commands,
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args: Res<Args>,
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windows: Query<&Window>,
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mut scheduled: ResMut<BirdScheduled>,
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mut counter: ResMut<BevyCounter>,
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bird_texture: Res<BirdTexture>,
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bird_resources: ResMut<BirdResources>,
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) {
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let window = windows.single();
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if scheduled.wave > 0 {
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if scheduled.waves > 0 {
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let bird_resources = bird_resources.into_inner();
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spawn_birds(
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&mut commands,
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args.into_inner(),
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&window.resolution,
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&mut counter,
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scheduled.per_wave,
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bird_texture.clone_weak(),
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bird_resources,
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None,
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scheduled.waves - 1,
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);
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let mut rng = thread_rng();
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counter.color = Color::rgb_linear(rng.gen(), rng.gen(), rng.gen());
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scheduled.wave -= 1;
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scheduled.waves -= 1;
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}
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}
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#[derive(Resource, Deref)]
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struct BirdTexture(Handle<Image>);
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#[derive(Resource)]
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struct BirdResources {
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textures: Vec<Handle<Image>>,
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materials: Vec<Handle<ColorMaterial>>,
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quad: Mesh2dHandle,
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color_rng: StdRng,
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material_rng: StdRng,
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velocity_rng: StdRng,
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}
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#[derive(Component)]
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struct StatsText;
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
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#[allow(clippy::too_many_arguments)]
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fn setup(
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mut commands: Commands,
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args: Res<Args>,
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asset_server: Res<AssetServer>,
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mut meshes: ResMut<Assets<Mesh>>,
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material_assets: ResMut<Assets<ColorMaterial>>,
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images: ResMut<Assets<Image>>,
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windows: Query<&Window>,
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counter: ResMut<BevyCounter>,
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) {
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warn!(include_str!("warning_string.txt"));
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let texture = asset_server.load("branding/icon.png");
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let args = args.into_inner();
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let images = images.into_inner();
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let mut textures = Vec::with_capacity(args.material_texture_count.max(1));
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if matches!(args.mode, Mode::Sprite) || args.material_texture_count > 0 {
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textures.push(asset_server.load("branding/icon.png"));
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}
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init_textures(&mut textures, args, images);
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let material_assets = material_assets.into_inner();
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let materials = init_materials(args, &textures, material_assets);
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let mut bird_resources = BirdResources {
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textures,
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materials,
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quad: meshes
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.add(Mesh::from(shape::Quad::new(Vec2::splat(
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BIRD_TEXTURE_SIZE as f32,
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))))
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.into(),
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color_rng: StdRng::seed_from_u64(42),
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material_rng: StdRng::seed_from_u64(42),
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velocity_rng: StdRng::seed_from_u64(42),
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};
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let text_section = move |color, value: &str| {
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TextSection::new(
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@ -113,51 +218,77 @@ fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
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};
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commands.spawn(Camera2dBundle::default());
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commands.spawn((
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TextBundle::from_sections([
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text_section(Color::GREEN, "Bird Count"),
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text_section(Color::CYAN, ""),
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text_section(Color::GREEN, "\nFPS (raw): "),
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text_section(Color::CYAN, ""),
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text_section(Color::GREEN, "\nFPS (SMA): "),
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text_section(Color::CYAN, ""),
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text_section(Color::GREEN, "\nFPS (EMA): "),
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text_section(Color::CYAN, ""),
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])
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.with_style(Style {
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position_type: PositionType::Absolute,
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top: Val::Px(5.0),
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left: Val::Px(5.0),
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commands
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.spawn(NodeBundle {
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style: Style {
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position_type: PositionType::Absolute,
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padding: UiRect::all(Val::Px(5.0)),
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..default()
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},
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z_index: ZIndex::Global(i32::MAX),
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background_color: Color::BLACK.with_a(0.75).into(),
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..default()
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}),
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StatsText,
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));
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})
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.with_children(|c| {
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c.spawn((
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TextBundle::from_sections([
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text_section(Color::GREEN, "Bird Count: "),
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text_section(Color::CYAN, ""),
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text_section(Color::GREEN, "\nFPS (raw): "),
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text_section(Color::CYAN, ""),
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text_section(Color::GREEN, "\nFPS (SMA): "),
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text_section(Color::CYAN, ""),
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text_section(Color::GREEN, "\nFPS (EMA): "),
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text_section(Color::CYAN, ""),
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]),
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StatsText,
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));
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});
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commands.insert_resource(BirdTexture(texture));
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commands.insert_resource(BirdScheduled {
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per_wave: std::env::args()
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.nth(1)
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.and_then(|arg| arg.parse::<usize>().ok())
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.unwrap_or_default(),
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wave: std::env::args()
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.nth(2)
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.and_then(|arg| arg.parse::<usize>().ok())
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.unwrap_or(1),
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});
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let mut scheduled = BirdScheduled {
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per_wave: args.per_wave,
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waves: args.waves,
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};
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if args.benchmark {
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let counter = counter.into_inner();
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for wave in (0..scheduled.waves).rev() {
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spawn_birds(
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&mut commands,
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args,
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&windows.single().resolution,
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counter,
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scheduled.per_wave,
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&mut bird_resources,
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Some(wave),
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wave,
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);
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}
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scheduled.waves = 0;
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}
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commands.insert_resource(bird_resources);
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commands.insert_resource(scheduled);
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}
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#[allow(clippy::too_many_arguments)]
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fn mouse_handler(
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mut commands: Commands,
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args: Res<Args>,
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time: Res<Time>,
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mouse_button_input: Res<Input<MouseButton>>,
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windows: Query<&Window>,
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bird_texture: Res<BirdTexture>,
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bird_resources: ResMut<BirdResources>,
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mut counter: ResMut<BevyCounter>,
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mut rng: Local<Option<StdRng>>,
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mut wave: Local<usize>,
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) {
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if rng.is_none() {
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*rng = Some(StdRng::seed_from_u64(42));
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}
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let rng = rng.as_mut().unwrap();
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let window = windows.single();
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if mouse_button_input.just_released(MouseButton::Left) {
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let mut rng = thread_rng();
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counter.color = Color::rgb_linear(rng.gen(), rng.gen(), rng.gen());
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}
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@ -165,83 +296,192 @@ fn mouse_handler(
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let spawn_count = (BIRDS_PER_SECOND as f64 * time.delta_seconds_f64()) as usize;
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spawn_birds(
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&mut commands,
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args.into_inner(),
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&window.resolution,
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&mut counter,
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spawn_count,
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bird_texture.clone_weak(),
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bird_resources.into_inner(),
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None,
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*wave,
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);
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*wave += 1;
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}
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}
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fn bird_velocity_transform(
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half_extents: Vec2,
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mut translation: Vec3,
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velocity_rng: &mut StdRng,
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waves: Option<usize>,
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dt: f32,
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) -> (Transform, Vec3) {
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let mut velocity = Vec3::new(MAX_VELOCITY * (velocity_rng.gen::<f32>() - 0.5), 0., 0.);
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if let Some(waves) = waves {
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// Step the movement and handle collisions as if the wave had been spawned at fixed time intervals
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// and with dt-spaced frames of simulation
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for _ in 0..(waves * (FIXED_TIMESTEP / dt).round() as usize) {
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step_movement(&mut translation, &mut velocity, dt);
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handle_collision(half_extents, &translation, &mut velocity);
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}
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}
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(
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Transform::from_translation(translation).with_scale(Vec3::splat(BIRD_SCALE)),
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velocity,
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)
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}
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const FIXED_DELTA_TIME: f32 = 1.0 / 60.0;
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#[allow(clippy::too_many_arguments)]
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fn spawn_birds(
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commands: &mut Commands,
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args: &Args,
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primary_window_resolution: &WindowResolution,
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counter: &mut BevyCounter,
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spawn_count: usize,
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texture: Handle<Image>,
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bird_resources: &mut BirdResources,
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waves_to_simulate: Option<usize>,
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wave: usize,
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) {
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let bird_x = (primary_window_resolution.width() / -2.) + HALF_BIRD_SIZE;
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let bird_y = (primary_window_resolution.height() / 2.) - HALF_BIRD_SIZE;
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let mut rng = StdRng::from_entropy();
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let half_extents = 0.5
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* Vec2::new(
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primary_window_resolution.width(),
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primary_window_resolution.height(),
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);
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let color = counter.color;
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let current_count = counter.count;
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commands.spawn_batch((0..spawn_count).map(move |count| {
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let velocity_x = rng.gen::<f32>() * MAX_VELOCITY - (MAX_VELOCITY * 0.5);
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let bird_z = (current_count + count) as f32 * 0.00001;
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(
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SpriteBundle {
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texture: texture.clone(),
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transform: Transform {
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translation: Vec3::new(bird_x, bird_y, bird_z),
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scale: Vec3::splat(BIRD_SCALE),
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..default()
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},
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sprite: Sprite { color, ..default() },
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..default()
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},
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Bird {
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velocity: Vec3::new(velocity_x, 0., 0.),
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},
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)
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}));
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match args.mode {
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Mode::Sprite => {
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let batch = (0..spawn_count)
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.map(|count| {
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let bird_z = (current_count + count) as f32 * 0.00001;
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let (transform, velocity) = bird_velocity_transform(
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half_extents,
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Vec3::new(bird_x, bird_y, bird_z),
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&mut bird_resources.velocity_rng,
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waves_to_simulate,
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FIXED_DELTA_TIME,
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);
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let color = if args.vary_per_instance {
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Color::rgb_linear(
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bird_resources.color_rng.gen(),
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bird_resources.color_rng.gen(),
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bird_resources.color_rng.gen(),
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)
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} else {
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color
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};
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(
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SpriteBundle {
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texture: bird_resources
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.textures
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.choose(&mut bird_resources.material_rng)
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.unwrap()
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.clone(),
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transform,
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sprite: Sprite { color, ..default() },
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..default()
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},
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Bird { velocity },
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)
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})
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.collect::<Vec<_>>();
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commands.spawn_batch(batch);
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}
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Mode::Mesh2d => {
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let batch = (0..spawn_count)
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.map(|count| {
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let bird_z = (current_count + count) as f32 * 0.00001;
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let (transform, velocity) = bird_velocity_transform(
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half_extents,
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Vec3::new(bird_x, bird_y, bird_z),
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&mut bird_resources.velocity_rng,
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waves_to_simulate,
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FIXED_DELTA_TIME,
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);
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let material =
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if args.vary_per_instance || args.material_texture_count > args.waves {
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bird_resources
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.materials
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.choose(&mut bird_resources.material_rng)
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.unwrap()
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.clone()
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} else {
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bird_resources.materials[wave % bird_resources.materials.len()].clone()
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};
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(
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MaterialMesh2dBundle {
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mesh: bird_resources.quad.clone(),
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material,
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transform,
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..default()
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},
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Bird { velocity },
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)
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})
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.collect::<Vec<_>>();
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commands.spawn_batch(batch);
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}
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}
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counter.count += spawn_count;
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counter.color = Color::rgb_linear(
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bird_resources.color_rng.gen(),
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bird_resources.color_rng.gen(),
|
||||
bird_resources.color_rng.gen(),
|
||||
);
|
||||
}
|
||||
|
||||
fn movement_system(time: Res<Time>, mut bird_query: Query<(&mut Bird, &mut Transform)>) {
|
||||
fn step_movement(translation: &mut Vec3, velocity: &mut Vec3, dt: f32) {
|
||||
translation.x += velocity.x * dt;
|
||||
translation.y += velocity.y * dt;
|
||||
velocity.y += GRAVITY * dt;
|
||||
}
|
||||
|
||||
fn movement_system(
|
||||
args: Res<Args>,
|
||||
time: Res<Time>,
|
||||
mut bird_query: Query<(&mut Bird, &mut Transform)>,
|
||||
) {
|
||||
let dt = if args.benchmark {
|
||||
FIXED_DELTA_TIME
|
||||
} else {
|
||||
time.delta_seconds()
|
||||
};
|
||||
for (mut bird, mut transform) in &mut bird_query {
|
||||
transform.translation.x += bird.velocity.x * time.delta_seconds();
|
||||
transform.translation.y += bird.velocity.y * time.delta_seconds();
|
||||
bird.velocity.y += GRAVITY * time.delta_seconds();
|
||||
step_movement(&mut transform.translation, &mut bird.velocity, dt);
|
||||
}
|
||||
}
|
||||
|
||||
fn handle_collision(half_extents: Vec2, translation: &Vec3, velocity: &mut Vec3) {
|
||||
if (velocity.x > 0. && translation.x + HALF_BIRD_SIZE > half_extents.x)
|
||||
|| (velocity.x <= 0. && translation.x - HALF_BIRD_SIZE < -(half_extents.x))
|
||||
{
|
||||
velocity.x = -velocity.x;
|
||||
}
|
||||
let velocity_y = velocity.y;
|
||||
if velocity_y < 0. && translation.y - HALF_BIRD_SIZE < -half_extents.y {
|
||||
velocity.y = -velocity_y;
|
||||
}
|
||||
if translation.y + HALF_BIRD_SIZE > half_extents.y && velocity_y > 0.0 {
|
||||
velocity.y = 0.0;
|
||||
}
|
||||
}
|
||||
fn collision_system(windows: Query<&Window>, mut bird_query: Query<(&mut Bird, &Transform)>) {
|
||||
let window = windows.single();
|
||||
|
||||
let half_width = window.width() * 0.5;
|
||||
let half_height = window.height() * 0.5;
|
||||
let half_extents = 0.5 * Vec2::new(window.width(), window.height());
|
||||
|
||||
for (mut bird, transform) in &mut bird_query {
|
||||
let x_vel = bird.velocity.x;
|
||||
let y_vel = bird.velocity.y;
|
||||
let x_pos = transform.translation.x;
|
||||
let y_pos = transform.translation.y;
|
||||
|
||||
if (x_vel > 0. && x_pos + HALF_BIRD_SIZE > half_width)
|
||||
|| (x_vel <= 0. && x_pos - HALF_BIRD_SIZE < -(half_width))
|
||||
{
|
||||
bird.velocity.x = -x_vel;
|
||||
}
|
||||
if y_vel < 0. && y_pos - HALF_BIRD_SIZE < -half_height {
|
||||
bird.velocity.y = -y_vel;
|
||||
}
|
||||
if y_pos + HALF_BIRD_SIZE > half_height && y_vel > 0.0 {
|
||||
bird.velocity.y = 0.0;
|
||||
}
|
||||
handle_collision(half_extents, &transform.translation, &mut bird.velocity);
|
||||
}
|
||||
}
|
||||
|
||||
@ -268,3 +508,53 @@ fn counter_system(
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
fn init_textures(textures: &mut Vec<Handle<Image>>, args: &Args, images: &mut Assets<Image>) {
|
||||
let mut color_rng = StdRng::seed_from_u64(42);
|
||||
while textures.len() < args.material_texture_count {
|
||||
let pixel = [color_rng.gen(), color_rng.gen(), color_rng.gen(), 255];
|
||||
textures.push(images.add(Image::new_fill(
|
||||
Extent3d {
|
||||
width: BIRD_TEXTURE_SIZE as u32,
|
||||
height: BIRD_TEXTURE_SIZE as u32,
|
||||
depth_or_array_layers: 1,
|
||||
},
|
||||
TextureDimension::D2,
|
||||
&pixel,
|
||||
TextureFormat::Rgba8UnormSrgb,
|
||||
)));
|
||||
}
|
||||
}
|
||||
|
||||
fn init_materials(
|
||||
args: &Args,
|
||||
textures: &[Handle<Image>],
|
||||
assets: &mut Assets<ColorMaterial>,
|
||||
) -> Vec<Handle<ColorMaterial>> {
|
||||
let capacity = if args.vary_per_instance {
|
||||
args.per_wave * args.waves
|
||||
} else {
|
||||
args.material_texture_count.max(args.waves)
|
||||
}
|
||||
.max(1);
|
||||
|
||||
let mut materials = Vec::with_capacity(capacity);
|
||||
materials.push(assets.add(ColorMaterial {
|
||||
color: Color::WHITE,
|
||||
texture: textures.get(0).cloned(),
|
||||
}));
|
||||
|
||||
let mut color_rng = StdRng::seed_from_u64(42);
|
||||
let mut texture_rng = StdRng::seed_from_u64(42);
|
||||
materials.extend(
|
||||
std::iter::repeat_with(|| {
|
||||
assets.add(ColorMaterial {
|
||||
color: Color::rgb_u8(color_rng.gen(), color_rng.gen(), color_rng.gen()),
|
||||
texture: textures.choose(&mut texture_rng).cloned(),
|
||||
})
|
||||
})
|
||||
.take(capacity - materials.len()),
|
||||
);
|
||||
|
||||
materials
|
||||
}
|
||||
|
||||
@ -33,7 +33,7 @@ struct Args {
|
||||
|
||||
/// whether to vary the material data in each instance.
|
||||
#[argh(switch)]
|
||||
vary_material_data: bool,
|
||||
vary_per_instance: bool,
|
||||
|
||||
/// the number of different textures from which to randomly select the material base color. 0 means no textures.
|
||||
#[argh(option, default = "0")]
|
||||
@ -206,7 +206,7 @@ fn init_materials(
|
||||
textures: &[Handle<Image>],
|
||||
assets: &mut Assets<StandardMaterial>,
|
||||
) -> Vec<Handle<StandardMaterial>> {
|
||||
let capacity = if args.vary_material_data {
|
||||
let capacity = if args.vary_per_instance {
|
||||
match args.layout {
|
||||
Layout::Cube => (WIDTH - WIDTH / 10) * (HEIGHT - HEIGHT / 10),
|
||||
Layout::Sphere => WIDTH * HEIGHT * 4,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user