How to add a Transform to a Collider?

[erwanvivien]

this is the basic code I'm trying to use :

use bevy::prelude::*;
use bevy_rapier3d::prelude::*;

fn main() {
    let mut app = App::new();

    app.add_plugins(DefaultPlugins);
    app.add_plugins(RapierPhysicsPlugin::<NoUserData>::default());
    #[cfg(feature = "debug_rapier")]
    app.add_plugins(RapierDebugRenderPlugin::default());

    app.add_systems(Startup, setup);

    app.run();
}

/// set up a simple 3D scene
fn setup(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<StandardMaterial>>,
) {
    commands
        .spawn((
            PbrBundle {
                mesh: meshes.add(Mesh::from(shape::Cube::new(5f32))),
                material: materials.add(Color::rgb(0.3, 0.5, 0.3).into()),
                ..default()
            },
            RigidBody::Dynamic,
            GravityScale(0f32),
        ))
        .with_children(|parent| {
            parent.spawn((
                Collider::cuboid(2.5f32, 2.5f32, 2.5f32),
                // Comment & uncomment this?
                // Transform::from_scale(Vec3::splat(0.1f32)),
                // Transform::from_xyz(0.0, 5.0, 0f32),
                // Transform::from_rotation(Quat::from_euler(
                //     EulerRot::XYZ,
                //     std::f32::consts::FRAC_PI_4,
                //     0f32,
                //     0f32,
                // )),
            ));
        });

    commands.spawn(Camera3dBundle {
        transform: Transform::from_xyz(0.0, 7.0, 13.0).looking_at(Vec3::ZERO, Vec3::Y),
        ..Default::default()
    });
}

And it seems like only the scale Transforms doesn't apply?

[erwanvivien]

Without transform

With Scale (1/10x)

With translate (5m)

With rotate (45°)

[Lycoon]

🤔

[ThierryBerger]

It seems you're missing a GlobalTransform:

parent.spawn((
  Collider::cuboid(2.5f32, 2.5f32, 2.5f32),
  // I recommend testing with bigger scale so you can see the debug drawing.
  Transform::from_scale(Vec3::splat(1.1f32)),
  // I prefer `SpatialBundle::from_transform(Transform::from_scale(Vec3::splat(1.1f32)))`, but that's slightly out of scope for this question.
  GlobalTransform::default(),
));
```rs