Tim Nikias wrote:
>>What am I doing wrong??
> 
> 
> Do all these points lie on the surface of *one* plane? I doubt it, just by
> the look of the values spread around. If you use just three points, it
> always works, as three points always create a plane, but a fourth one might
> make some trouble. Maybe you've just had luck with the combination for other
> polygons.

A quick top-down view check reveals that you hit it spot on. I never 
would have even thought of checking that. And even once I knew that's 
what the problem was, it was trial-and-error to fix it!

Thanks a bunch!

~Mike

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