040000 tree ca7d25c8337d8f4036e4127830c88d6c8c7f7d2a	scalar-scalar
040000 tree a8d9a939d9b23a03e10ea87079e8de5b1dcf6246	scalar-vec3
040000 tree a0cabca21bd1702eb07ef0b2ac276926342138b4	vec3-scalar
040000 tree 0c5a0b1c6f6facf423fb7438ceaf08dc13557bf0	vec3-vec3