Hi, I was looking for an easy explanation of bump mapping, came across this...

http://viz.aset.psu.edu/gho/sem_notes/color_3d/index.html

Okay, it is 'general purpose' rather than Poser, so does not cover eg P4's bump-map 90' offset etc, but nice to know what's happening 'under the hood'. If sub-links baulk, press 'refresh' as their server seems slow.

FWIW, Morphography has an interesting tut on P4 bump maps' 90' twist, scroll down...
http://www.morphography.uk.vu/tutorials.html

Which may fit with gimp 10.2 in Filters section...
on-line...
http://docs.gimp.org/en/plug-in-bump-map.html
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Given my ignorance plus P4's 90' twist, 'tis not surprising the geisha wig I reworked came out looking so very odd...
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Um, I'm just about to go wrap the last of the gifts: Had a bad moment earlier when we *forgot* where we'd hidden some...
( What am I getting ?? The usual-- A migraine !! )
D'uh, I think I'll have some supper first...

Merry Christmas & Happy New Year, and may your 2008 be better than 2007.

Merry Christmas to you as well Nik. Thanks also for the links.  

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Two wrongs don't make a right.
But six left turns will get you around the block
and back in the driveway again.

Thank you Nik  

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