040000 tree adae1e8f4ce814704396c785c7db17f9223b95ba	scalar-scalar
040000 tree 5598c12bddb43f475d37a92621069706d5abb17f	scalar-vec3
040000 tree 726d2a4fa7b48ee327ec9e1706973096cd807fb0	vec3-scalar
040000 tree fc19146ed25ebaf8662f687d202e614a4184a06b	vec3-vec3