Quote - Look at this.

RM includes two sets of mat poses for her sets. One set has the complicated multi-node shader. The other set is just the diffuse color map and the bump map - nothing else. She calls this the "NoShader" or NS version.

I loaded the NS mat pose and rendered again with GC. Look at the incredible difference.

What are we to conclude from this?

The complicated RM shader produces good results in Poser 8 with normal lights, but bad results in Poser Pro with or without GC. The NS version is fine with GC.

Obviously her shaders were never tested with GC. This is a problem.

Incredible difference!
Hats off, Master !
Thanks ever so much, I can't tell you enough how grateful I am and I don't know how I'll be able to repay you.
Take care.