POV-Ray: Newsgroups: povray.advanced-users: How does one test to see if a triangle's verticies are arranged in a clockwise or counter clockwise direction?: Re: How does one test to see if a triangle's verticies are arranged in a clockwise or counter clockwise direction?

POV-Ray : Newsgroups : povray.advanced-users : How does one test to see if a triangle's verticies are arranged in a clockwise or counter clockwise direction? : Re: How does one test to see if a triangle's verticies are arranged in a clockwise or counter clockwise direction?		Server Time 29 Jul 2024 18:25:01 EDT (-0400)

From: Jim Kress
Date: 1 Jul 2002 16:10:52
Message: <3d20b74c$1@news.povray.org>

> 1. The surface is convex at all vertices.

What exactly do you mean by this?  For example, if you have a kidney shaped
surface, which is a closed surface but curves in and out, does that meet
your assumption?

Jim

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