[INNIS]

Hi Guys
After spending sometime getting acquainted with
AC3D I have some questions that I don't seem to find
definitive answers to in the manual.
This has to do with Vertice order , surfaces and normals.
I would like to know when the magenta normal arrow is
indicating the correct orentation of the surface.I find with a
4 vertice poly if I keep changing the vertex order the normal
arrow will cycle through about six stages.Three when the normal
is pointing in the correct direction and three when the normal points in the
incorrect direction also there seems to be a couple of times when the
normal arrow is pointing along the surface is this correct.
The question I have is how do I know of the three times the normal
is pointing in the correct direction which is the correct vertex order for
the surface or is it a trial and error situation.I hope the above makes
sense.
What does a surface with a red border mean and how can it be corrected
other than deleting it.

Thanks for any help you may be able to give.

Cheers
Innis