c6958b3056
# Objective
- Spawning a scene is handled as a special case with a command `spawn_scene` that takes an handle but doesn't let you specify anything else. This is the only handle that works that way.
- Workaround for this have been to add the `spawn_scene` on `ChildBuilder` to be able to specify transform of parent, or to make the `SceneSpawner` available to be able to select entities from a scene by their instance id
## Solution
Add a bundle
```rust
pub struct SceneBundle {
pub scene: Handle<Scene>,
pub transform: Transform,
pub global_transform: GlobalTransform,
pub instance_id: Option<InstanceId>,
}
```
and instead of
```rust
commands.spawn_scene(asset_server.load("models/FlightHelmet/FlightHelmet.gltf#Scene0"));
```
you can do
```rust
commands.spawn_bundle(SceneBundle {
scene: asset_server.load("models/FlightHelmet/FlightHelmet.gltf#Scene0"),
..Default::default()
});
```
The scene will be spawned as a child of the entity with the `SceneBundle`
~I would like to remove the command `spawn_scene` in favor of this bundle but didn't do it yet to get feedback first~
Co-authored-by: François <8672791+mockersf@users.noreply.github.com>
Co-authored-by: Carter Anderson <mcanders1@gmail.com>
62 lines
1.7 KiB
Rust
62 lines
1.7 KiB
Rust
//! Uses two windows to visualize a 3D model from different angles.
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use bevy::{
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prelude::*,
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render::camera::RenderTarget,
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window::{CreateWindow, PresentMode, WindowId},
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};
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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.add_startup_system(setup)
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.add_system(bevy::window::close_on_esc)
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.run();
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}
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fn setup(
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mut commands: Commands,
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asset_server: Res<AssetServer>,
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mut create_window_events: EventWriter<CreateWindow>,
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) {
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// add entities to the world
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commands.spawn_bundle(SceneBundle {
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scene: asset_server.load("models/monkey/Monkey.gltf#Scene0"),
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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, 5.0, 4.0),
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..default()
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});
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// main camera
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commands.spawn_bundle(Camera3dBundle {
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transform: Transform::from_xyz(0.0, 0.0, 6.0).looking_at(Vec3::ZERO, Vec3::Y),
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..default()
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});
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let window_id = WindowId::new();
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// sends out a "CreateWindow" event, which will be received by the windowing backend
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create_window_events.send(CreateWindow {
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id: window_id,
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descriptor: WindowDescriptor {
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width: 800.,
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height: 600.,
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present_mode: PresentMode::Immediate,
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title: "Second window".to_string(),
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..default()
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},
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});
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// second window camera
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commands.spawn_bundle(Camera3dBundle {
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transform: Transform::from_xyz(6.0, 0.0, 0.0).looking_at(Vec3::ZERO, Vec3::Y),
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camera: Camera {
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target: RenderTarget::Window(window_id),
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..default()
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},
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..default()
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});
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}
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