#[repr(C)]
#[derive(Copy, Clone, Eq, Hash, PartialEq)]
pub struct MeshHandle {
    pub group_id: usize,
    pub sub_id: usize,
}

#[repr(C)]
#[derive(Copy, Clone, Eq, Hash, PartialEq)]
pub struct TextureHandle {
    pub id: usize,
}

#[repr(C)]
#[derive(Copy, Clone, Eq, Hash, PartialEq)]
pub struct MaterialHandle {
    pub id: usize,
}