well, you could scan all normals and then take the dot product between the normal and the camera (which the normal of the camera would be a vector from the actual camera and the point it is rotating around, and then normalize that
then if the dot product was negative, then its facing outward, but if the dot product was positive then its facing inward
then you flip the normals that the dot product was negative
this might work, but I'm not sure
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Last edited by MattTheMan; 05-04-2006 at 01:03 AM.