mirror of
https://github.com/bevyengine/bevy
synced 2024-11-22 20:53:53 +00:00
b6a647cc01
Adds a `default()` shorthand for `Default::default()` ... because life is too short to constantly type `Default::default()`.
```rust
use bevy::prelude::*;
#[derive(Default)]
struct Foo {
bar: usize,
baz: usize,
}
// Normally you would do this:
let foo = Foo {
bar: 10,
..Default::default()
};
// But now you can do this:
let foo = Foo {
bar: 10,
..default()
};
```
The examples have been adapted to use `..default()`. I've left internal crates as-is for now because they don't pull in the bevy prelude, and the ergonomics of each case should be considered individually.
56 lines
1.8 KiB
Rust
56 lines
1.8 KiB
Rust
use bevy::prelude::*;
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/// This example shows how to configure Multi-Sample Anti-Aliasing. Setting the sample count higher
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/// will result in smoother edges, but it will also increase the cost to render those edges. The
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/// range should generally be somewhere between 1 (no multi sampling, but cheap) to 8 (crisp but
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/// expensive).
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/// Note that WGPU currently only supports 1 or 4 samples.
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/// Ultimately we plan on supporting whatever is natively supported on a given device.
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/// Check out [this issue](https://github.com/gfx-rs/wgpu/issues/1832) for more info.
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fn main() {
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App::new()
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.insert_resource(Msaa { samples: 4 })
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.add_plugins(DefaultPlugins)
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.add_startup_system(setup)
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.add_system(cycle_msaa)
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.run();
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}
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/// set up a simple 3D scene
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fn setup(
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mut commands: Commands,
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mut meshes: ResMut<Assets<Mesh>>,
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mut materials: ResMut<Assets<StandardMaterial>>,
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) {
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info!("Press 'm' to toggle MSAA");
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info!("Using 4x MSAA");
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// cube
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commands.spawn_bundle(PbrBundle {
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mesh: meshes.add(Mesh::from(shape::Cube { size: 2.0 })),
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material: materials.add(Color::rgb(0.8, 0.7, 0.6).into()),
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..default()
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});
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// light
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commands.spawn_bundle(PointLightBundle {
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transform: Transform::from_xyz(4.0, 8.0, 4.0),
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..default()
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});
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// camera
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commands.spawn_bundle(PerspectiveCameraBundle {
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transform: Transform::from_xyz(-3.0, 3.0, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
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..default()
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});
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}
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fn cycle_msaa(input: Res<Input<KeyCode>>, mut msaa: ResMut<Msaa>) {
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if input.just_pressed(KeyCode::M) {
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if msaa.samples == 4 {
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info!("Not using MSAA");
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msaa.samples = 1;
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} else {
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info!("Using 4x MSAA");
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msaa.samples = 4;
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}
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}
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}
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