60 lines
1.9 KiB
Rust
60 lines
1.9 KiB
Rust
//! Shows how to create a 3D orthographic view (for isometric-look games or CAD applications).
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use bevy::{prelude::*, render::camera::ScalingMode};
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fn main() {
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App::new()
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.add_plugins(DefaultPlugins)
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.add_systems(Startup, setup)
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.run();
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}
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/// set up a simple 3D scene
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fn setup(
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mut commands: Commands,
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mut meshes: ResMut<Assets<Mesh>>,
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mut materials: ResMut<Assets<StandardMaterial>>,
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) {
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// camera
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commands.spawn((
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Camera3d::default(),
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Projection::from(OrthographicProjection {
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// 6 world units per pixel of window height.
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scaling_mode: ScalingMode::FixedVertical {
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viewport_height: 6.0,
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},
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..OrthographicProjection::default_3d()
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}),
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Transform::from_xyz(5.0, 5.0, 5.0).looking_at(Vec3::ZERO, Vec3::Y),
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));
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// plane
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commands.spawn((
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Mesh3d(meshes.add(Plane3d::default().mesh().size(5.0, 5.0))),
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MeshMaterial3d(materials.add(Color::srgb(0.3, 0.5, 0.3))),
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));
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// cubes
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commands.spawn((
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Mesh3d(meshes.add(Cuboid::default())),
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MeshMaterial3d(materials.add(Color::srgb(0.8, 0.7, 0.6))),
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Transform::from_xyz(1.5, 0.5, 1.5),
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));
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commands.spawn((
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Mesh3d(meshes.add(Cuboid::default())),
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MeshMaterial3d(materials.add(Color::srgb(0.8, 0.7, 0.6))),
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Transform::from_xyz(1.5, 0.5, -1.5),
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));
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commands.spawn((
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Mesh3d(meshes.add(Cuboid::default())),
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MeshMaterial3d(materials.add(Color::srgb(0.8, 0.7, 0.6))),
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Transform::from_xyz(-1.5, 0.5, 1.5),
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));
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commands.spawn((
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Mesh3d(meshes.add(Cuboid::default())),
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MeshMaterial3d(materials.add(Color::srgb(0.8, 0.7, 0.6))),
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Transform::from_xyz(-1.5, 0.5, -1.5),
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));
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// light
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commands.spawn((PointLight::default(), Transform::from_xyz(3.0, 8.0, 5.0)));
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}
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