capsule.md

Capsule

Capsule is like two spheres connected by a cylinder.

commands.spawn(PbrBundle {
    mesh: meshes
        .add(
            Capsule {
                radius: 0.5,
                depth: 0.5,
                ..default()
            }
            .into(),
        )
        .into(),
    ..default()
});

We can set its radius and depth (for the height of the cylinder).

We set our camera position to (0, 0, 3) and make it looking at the origin.

The full code is as follows:

use bevy::{
    app::{App, Startup},
    asset::Assets,
    core_pipeline::core_3d::Camera3dBundle,
    ecs::system::{Commands, ResMut},
    math::Vec3,
    pbr::{PbrBundle, PointLightBundle, StandardMaterial},
    render::mesh::{shape::Capsule, Mesh},
    transform::components::Transform,
    utils::default,
    DefaultPlugins,
};

fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_systems(Startup, setup)
        .run();
}

fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<StandardMaterial>>,
) {
    commands.spawn(Camera3dBundle {
        transform: Transform::from_xyz(0., 0., 3.).looking_at(Vec3::ZERO, Vec3::Y),
        ..default()
    });

    commands.spawn(PbrBundle {
        mesh: meshes
            .add(
                Capsule {
                    radius: 0.5,
                    depth: 0.5,
                    ..default()
                }
                .into(),
            )
            .into(),
        material: materials.add(StandardMaterial::default()).into(),
        ..default()
    });

    commands.spawn(PointLightBundle {
        transform: Transform::from_xyz(2., 2., 1.),
        ..default()
    });
}

Result:

➡️ Next: Torus

📘 Back: Table of contents