040000 tree 8bb2f9a592d77113efd48eae093934e27de4135f	scalar-scalar
040000 tree 39357d51e9ae64fb146ddb7160ad029c6addb794	scalar-vec3
040000 tree d931469c6c40e8ade8260cd4704647cb5bc8927d	vec3-scalar
040000 tree 27c33fc0339764774668d45ba926bdd34bc84a67	vec3-vec3