Compiled a.osl -> a.oso
Compiled b.osl -> b.oso
Connect a1.Cout to b.C1
Connect a2.Cout to b.C2

Output b.Cout to out.exr
a: 0.5 0.193125 0.37725
a: 0.5 0.193125 0.37725
b: 1 0.38625 0.7545
