3d_scene/
3d_scene.rs

1//! A simple 3D scene with light shining over a cube sitting on a plane.
2
3use bevy::prelude::*;
4
5fn main() {
6    App::new()
7        .add_plugins(DefaultPlugins)
8        .add_systems(Startup, setup)
9        .run();
10}
11
12/// set up a simple 3D scene
13fn setup(
14    mut commands: Commands,
15    mut meshes: ResMut<Assets<Mesh>>,
16    mut materials: ResMut<Assets<StandardMaterial>>,
17) {
18    // circular base
19    commands.spawn((
20        Mesh3d(meshes.add(Circle::new(4.0))),
21        MeshMaterial3d(materials.add(Color::WHITE)),
22        Transform::from_rotation(Quat::from_rotation_x(-std::f32::consts::FRAC_PI_2)),
23    ));
24    // cube
25    commands.spawn((
26        Mesh3d(meshes.add(Cuboid::new(1.0, 1.0, 1.0))),
27        MeshMaterial3d(materials.add(Color::srgb_u8(124, 144, 255))),
28        Transform::from_xyz(0.0, 0.5, 0.0),
29    ));
30    // light
31    commands.spawn((
32        PointLight {
33            shadows_enabled: true,
34            ..default()
35        },
36        Transform::from_xyz(4.0, 8.0, 4.0),
37    ));
38    // camera
39    commands.spawn((
40        Camera3d::default(),
41        Transform::from_xyz(-2.5, 4.5, 9.0).looking_at(Vec3::ZERO, Vec3::Y),
42    ));
43}