pub unsafe extern "C" fn graphene_ray_init_from_ray(
r: *mut graphene_ray_t,
src: *const graphene_ray_t,
) -> *mut graphene_ray_t
pub unsafe extern "C" fn graphene_ray_init_from_ray(
r: *mut graphene_ray_t,
src: *const graphene_ray_t,
) -> *mut graphene_ray_t