040000 tree d3c4af1548b34e0e0bc749eb6958c368a46828ee	scalar-scalar
040000 tree b9192c57bb95c7d9519408d157c616d2b062eff4	scalar-vec3
040000 tree 9effb38834af05f4294ca16c6061398f033aa79b	vec3-scalar
040000 tree 194814df0b319fe9d000bff38cc22d95c075c1fd	vec3-vec3