mirror of
https://github.com/bevyengine/bevy
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eb51b4c28e
# Objective A step in the migration to required components: scenes! ## Solution As per the [selected proposal](https://hackmd.io/@bevy/required_components/%2FPJtNGVMMQhyM0zIvCJSkbA): - Deprecate `SceneBundle` and `DynamicSceneBundle`. - Add `SceneRoot` and `DynamicSceneRoot` components, which wrap a `Handle<Scene>` and `Handle<DynamicScene>` respectively. ## Migration Guide Asset handles for scenes and dynamic scenes must now be wrapped in the `SceneRoot` and `DynamicSceneRoot` components. Raw handles as components no longer spawn scenes. Additionally, `SceneBundle` and `DynamicSceneBundle` have been deprecated. Instead, use the scene components directly. Previously: ```rust let model_scene = asset_server.load(GltfAssetLabel::Scene(0).from_asset("model.gltf")); commands.spawn(SceneBundle { scene: model_scene, transform: Transform::from_xyz(-4.0, 0.0, -3.0), ..default() }); ``` Now: ```rust let model_scene = asset_server.load(GltfAssetLabel::Scene(0).from_asset("model.gltf")); commands.spawn(( SceneRoot(model_scene), Transform::from_xyz(-4.0, 0.0, -3.0), )); ```
66 lines
1.9 KiB
Rust
66 lines
1.9 KiB
Rust
//! Loads and renders a glTF file as a scene.
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use bevy::{
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pbr::{CascadeShadowConfigBuilder, DirectionalLightShadowMap},
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prelude::*,
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};
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use std::f32::consts::*;
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fn main() {
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App::new()
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.insert_resource(DirectionalLightShadowMap { size: 4096 })
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.add_plugins(DefaultPlugins)
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.add_systems(Startup, setup)
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.add_systems(Update, animate_light_direction)
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.run();
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}
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fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
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commands.spawn((
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Camera3dBundle {
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transform: Transform::from_xyz(0.7, 0.7, 1.0)
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.looking_at(Vec3::new(0.0, 0.3, 0.0), Vec3::Y),
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..default()
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},
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EnvironmentMapLight {
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diffuse_map: asset_server.load("environment_maps/pisa_diffuse_rgb9e5_zstd.ktx2"),
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specular_map: asset_server.load("environment_maps/pisa_specular_rgb9e5_zstd.ktx2"),
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intensity: 250.0,
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..default()
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},
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));
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commands.spawn((
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DirectionalLight {
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shadows_enabled: true,
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..default()
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},
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// This is a relatively small scene, so use tighter shadow
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// cascade bounds than the default for better quality.
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// We also adjusted the shadow map to be larger since we're
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// only using a single cascade.
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CascadeShadowConfigBuilder {
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num_cascades: 1,
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maximum_distance: 1.6,
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..default()
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}
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.build(),
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));
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commands.spawn(SceneRoot(asset_server.load(
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GltfAssetLabel::Scene(0).from_asset("models/FlightHelmet/FlightHelmet.gltf"),
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)));
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}
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fn animate_light_direction(
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time: Res<Time>,
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mut query: Query<&mut Transform, With<DirectionalLight>>,
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) {
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for mut transform in &mut query {
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transform.rotation = Quat::from_euler(
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EulerRot::ZYX,
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0.0,
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time.elapsed_seconds() * PI / 5.0,
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-FRAC_PI_4,
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);
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}
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}
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