Something ya'll may not know and I'm not sure if it's been mentioned before or if it's even come up yet:

A friend and I found out something about tiling textures from Poser and how Luxrender interprets them. Poser divides a map in order to tile it. Luxrender multiplies it. So, in Luxrender - from a direct export from Poser where the tiling is 10x10 - you'd get "float vscale" [-0.10000000] and "float uscale" [0.1000000]. If you leave it like this, you'll get a white texture in Luxrender. If, however, you change that to "float vscale" [-10.0] and "float uscale" [10.0] you'll get your proper tiling.

Some examples:

If your tiling from Poser is listed as .05, change it to 20.0
If your tiling from Poser is listed as .2, change it to 5.0
If your tiling from Poser is listed as .5, change it to 2.0

and so on ;o).

Laurie