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If you are going to use NormalMaps I would encourage you to create and use them with TangentSpace.

Hope this helps

Yeah, I read the Poser Pro normal pdf file.
The normal map tests I've done in Poser Pro (zBrush) have resulted in "bumps" that were seemingly largely inverted. I don't know if that's because of Poser, or because I passed the object through LW first and on to ZB as OBJ.
I use "Maya Tangent Space" for LW though - seems to yield the best results.

I know why they're inverted. And I know how to fix it in Poser, if you want to.

The XYZ components of the normals are stored in red, green blue. However, there is some disagreement among applications as to which direction each goes. Poser (as usual) disagrees with most other applications in the green (Y) channel, although it agrees in red (X) and blue (Z).

This is not entirely Poser's fault, though. It has to do with whether you are in a right-handed coordinate space or a left-handed coordinate space. Neither is more correct, and some apps are left, others right. I have even seen some apps that generate normal maps offer an option that you toggle, something like "Y is Up or Down?".

You have to invert the green component, using Color_Math nodes. Once you do that, you can directly use normal maps made in other applications that are opposite handed. Do you want me to show how?

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