040000 tree 6c83ba39b5c337073027e79e668d33d99819f66f	scalar-scalar
040000 tree 29c1c65675b9ae857fb5f6623152b98c5bae7a72	scalar-vec3
040000 tree 1aeaa4310b4bcacc02cbc2c8d3da8a35b904a6f8	vec3-scalar
040000 tree 104ff88127ba0e8cff525d800b31853c1b36a8e6	vec3-vec3