Render Mesh Only With Wireframe

[vertexcubed]

Working on a project and I want to implement a debug rendering mode where meshes are only rendered with wireframe enabled and not their normal rendering, however I can't seem to figure out how. I tried just changing the Visibility on the entity but that also hides the wireframe too. Any simple way of implementing this?

[Henauxg]

I don't think that there is a built-in way to achieve that.

You best bet may be to do it manually with a system removing all your MeshMaterial3d components from your mesh entities when entering your debug rendering mode (and storing the material handles in a custom MeshMaterial3dStorage component to be able to restore it later), ignoring entities with NoWireframe.

#[derive(Component, Clone, Debug, Deref, DerefMut)]
pub struct MeshMaterial3dStorage<M: Material>(pub Handle<M>);

fn enter_debug_mode<M: Material>(
    mut commands: Commands,
    keyboard_input: Res<ButtonInput<KeyCode>>,
    mesh_entities: Query<(Entity, &MeshMaterial3d<M>), Without<NoWireframe>>,
) {
    // TODO Use an observer/state/... instead of keyboard input
    if keyboard_input.just_pressed(KeyCode::Space) {
        for (e, mat_handle) in &mesh_entities {
            commands
                .entity(e)
                .insert(MeshMaterial3dStorage(mat_handle.0.clone()));
            commands.entity(e).remove::<MeshMaterial3d<M>>();
        }
    }
}