25bfa80e60
# Objective Yet another PR for migrating stuff to required components. This time, cameras! ## Solution As per the [selected proposal](https://hackmd.io/tsYID4CGRiWxzsgawzxG_g#Combined-Proposal-1-Selected), deprecate `Camera2dBundle` and `Camera3dBundle` in favor of `Camera2d` and `Camera3d`. Adding a `Camera` without `Camera2d` or `Camera3d` now logs a warning, as suggested by Cart [on Discord](https://discord.com/channels/691052431525675048/1264881140007702558/1291506402832945273). I would personally like cameras to work a bit differently and be split into a few more components, to avoid some footguns and confusing semantics, but that is more controversial, and shouldn't block this core migration. ## Testing I ran a few 2D and 3D examples, and tried cameras with and without render graphs. --- ## Migration Guide `Camera2dBundle` and `Camera3dBundle` have been deprecated in favor of `Camera2d` and `Camera3d`. Inserting them will now also insert the other components required by them automatically.
121 lines
3.7 KiB
Rust
121 lines
3.7 KiB
Rust
//! Demonstrates how to rotate the skybox and the environment map simultaneously.
|
|
|
|
use std::f32::consts::PI;
|
|
|
|
use bevy::{
|
|
color::palettes::css::{GOLD, WHITE},
|
|
core_pipeline::{tonemapping::Tonemapping::AcesFitted, Skybox},
|
|
prelude::*,
|
|
render::texture::ImageLoaderSettings,
|
|
};
|
|
|
|
/// Entry point.
|
|
pub fn main() {
|
|
App::new()
|
|
.add_plugins(DefaultPlugins)
|
|
.add_systems(Startup, setup)
|
|
.add_systems(Update, rotate_skybox_and_environment_map)
|
|
.run();
|
|
}
|
|
|
|
/// Initializes the scene.
|
|
fn setup(
|
|
mut commands: Commands,
|
|
mut meshes: ResMut<Assets<Mesh>>,
|
|
mut materials: ResMut<Assets<StandardMaterial>>,
|
|
asset_server: Res<AssetServer>,
|
|
) {
|
|
let sphere_mesh = create_sphere_mesh(&mut meshes);
|
|
spawn_sphere(&mut commands, &mut materials, &asset_server, &sphere_mesh);
|
|
spawn_light(&mut commands);
|
|
spawn_camera(&mut commands, &asset_server);
|
|
}
|
|
|
|
/// Rotate the skybox and the environment map per frame.
|
|
fn rotate_skybox_and_environment_map(
|
|
mut environments: Query<(&mut Skybox, &mut EnvironmentMapLight)>,
|
|
time: Res<Time>,
|
|
) {
|
|
let now = time.elapsed_seconds();
|
|
let rotation = Quat::from_rotation_y(0.2 * now);
|
|
for (mut skybox, mut environment_map) in environments.iter_mut() {
|
|
skybox.rotation = rotation;
|
|
environment_map.rotation = rotation;
|
|
}
|
|
}
|
|
|
|
/// Generates a sphere.
|
|
fn create_sphere_mesh(meshes: &mut Assets<Mesh>) -> Handle<Mesh> {
|
|
// We're going to use normal maps, so make sure we've generated tangents, or
|
|
// else the normal maps won't show up.
|
|
|
|
let mut sphere_mesh = Sphere::new(1.0).mesh().build();
|
|
sphere_mesh
|
|
.generate_tangents()
|
|
.expect("Failed to generate tangents");
|
|
meshes.add(sphere_mesh)
|
|
}
|
|
|
|
/// Spawn a regular object with a clearcoat layer. This looks like car paint.
|
|
fn spawn_sphere(
|
|
commands: &mut Commands,
|
|
materials: &mut Assets<StandardMaterial>,
|
|
asset_server: &AssetServer,
|
|
sphere_mesh: &Handle<Mesh>,
|
|
) {
|
|
commands.spawn((
|
|
Mesh3d(sphere_mesh.clone()),
|
|
MeshMaterial3d(materials.add(StandardMaterial {
|
|
clearcoat: 1.0,
|
|
clearcoat_perceptual_roughness: 0.3,
|
|
clearcoat_normal_texture: Some(asset_server.load_with_settings(
|
|
"textures/ScratchedGold-Normal.png",
|
|
|settings: &mut ImageLoaderSettings| settings.is_srgb = false,
|
|
)),
|
|
metallic: 0.9,
|
|
perceptual_roughness: 0.1,
|
|
base_color: GOLD.into(),
|
|
..default()
|
|
})),
|
|
Transform::from_xyz(0.0, 0.0, 0.0).with_scale(Vec3::splat(1.25)),
|
|
));
|
|
}
|
|
|
|
/// Spawns a light.
|
|
fn spawn_light(commands: &mut Commands) {
|
|
commands.spawn(PointLight {
|
|
color: WHITE.into(),
|
|
intensity: 100000.0,
|
|
..default()
|
|
});
|
|
}
|
|
|
|
/// Spawns a camera with associated skybox and environment map.
|
|
fn spawn_camera(commands: &mut Commands, asset_server: &AssetServer) {
|
|
commands
|
|
.spawn((
|
|
Camera3d::default(),
|
|
Camera {
|
|
hdr: true,
|
|
..default()
|
|
},
|
|
Projection::Perspective(PerspectiveProjection {
|
|
fov: 27.0 / 180.0 * PI,
|
|
..default()
|
|
}),
|
|
Transform::from_xyz(0.0, 0.0, 10.0),
|
|
AcesFitted,
|
|
))
|
|
.insert(Skybox {
|
|
brightness: 5000.0,
|
|
image: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
|
|
..default()
|
|
})
|
|
.insert(EnvironmentMapLight {
|
|
diffuse_map: asset_server.load("environment_maps/pisa_diffuse_rgb9e5_zstd.ktx2"),
|
|
specular_map: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
|
|
intensity: 2000.0,
|
|
..default()
|
|
});
|
|
}
|