bevy/examples/shader/shader_material_screenspace_texture.rs
Edgar Geier f18f28874a
Allow tuples and single plugins in add_plugins, deprecate add_plugin (#8097)
# Objective

- Better consistency with `add_systems`.
- Deprecating `add_plugin` in favor of a more powerful `add_plugins`.
- Allow passing `Plugin` to `add_plugins`.
- Allow passing tuples to `add_plugins`.

## Solution

- `App::add_plugins` now takes an `impl Plugins` parameter.
- `App::add_plugin` is deprecated.
- `Plugins` is a new sealed trait that is only implemented for `Plugin`,
`PluginGroup` and tuples over `Plugins`.
- All examples, benchmarks and tests are changed to use `add_plugins`,
using tuples where appropriate.

---

## Changelog

### Changed

- `App::add_plugins` now accepts all types that implement `Plugins`,
which is implemented for:
  - Types that implement `Plugin`.
  - Types that implement `PluginGroup`.
  - Tuples (up to 16 elements) over types that implement `Plugins`.
- Deprecated `App::add_plugin` in favor of `App::add_plugins`.

## Migration Guide

- Replace `app.add_plugin(plugin)` calls with `app.add_plugins(plugin)`.

---------

Co-authored-by: Carter Anderson <mcanders1@gmail.com>
2023-06-21 20:51:03 +00:00

80 lines
2.3 KiB
Rust

//! A shader that samples a texture with view-independent UV coordinates.
use bevy::{
prelude::*,
reflect::{TypePath, TypeUuid},
render::render_resource::{AsBindGroup, ShaderRef},
};
fn main() {
App::new()
.add_plugins((DefaultPlugins, MaterialPlugin::<CustomMaterial>::default()))
.add_systems(Startup, setup)
.add_systems(Update, rotate_camera)
.run();
}
#[derive(Component)]
struct MainCamera;
fn setup(
mut commands: Commands,
asset_server: Res<AssetServer>,
mut meshes: ResMut<Assets<Mesh>>,
mut custom_materials: ResMut<Assets<CustomMaterial>>,
mut standard_materials: ResMut<Assets<StandardMaterial>>,
) {
commands.spawn(PbrBundle {
mesh: meshes.add(shape::Plane::from_size(5.0).into()),
material: standard_materials.add(Color::rgb(0.3, 0.5, 0.3).into()),
..default()
});
commands.spawn(PointLightBundle {
transform: Transform::from_xyz(4.0, 8.0, 4.0),
..default()
});
commands.spawn(MaterialMeshBundle {
mesh: meshes.add(Mesh::from(shape::Cube { size: 1.0 })),
transform: Transform::from_xyz(0.0, 0.5, 0.0),
material: custom_materials.add(CustomMaterial {
texture: asset_server.load(
"models/FlightHelmet/FlightHelmet_Materials_LensesMat_OcclusionRoughMetal.png",
),
}),
..default()
});
// camera
commands.spawn((
Camera3dBundle {
transform: Transform::from_xyz(4.0, 2.5, 4.0).looking_at(Vec3::ZERO, Vec3::Y),
..default()
},
MainCamera,
));
}
fn rotate_camera(mut camera: Query<&mut Transform, With<MainCamera>>, time: Res<Time>) {
let cam_transform = camera.single_mut().into_inner();
cam_transform.rotate_around(
Vec3::ZERO,
Quat::from_axis_angle(Vec3::Y, 45f32.to_radians() * time.delta_seconds()),
);
cam_transform.look_at(Vec3::ZERO, Vec3::Y);
}
#[derive(AsBindGroup, Debug, Clone, TypeUuid, TypePath)]
#[uuid = "b62bb455-a72c-4b56-87bb-81e0554e234f"]
pub struct CustomMaterial {
#[texture(0)]
#[sampler(1)]
texture: Handle<Image>,
}
impl Material for CustomMaterial {
fn fragment_shader() -> ShaderRef {
"shaders/custom_material_screenspace_texture.wgsl".into()
}
}