Quote - Hey.. just to be clear, the problem is using "and" instead of "or" in the above.

Correct.  I didn't explain well.  I added the FLT_EPSILON testing to that function only recently, because the if/not validity test may not return the same results for the .pyd and for Numeric arrays used as vectors.

===========================sigline======================================================

Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.