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 16:27:09 EDT (-0400)

From: Peter Popov
Date: 30 Jun 2002 19:29:57
Message: <1p4vhu4ueg40nmd6kj4ahc9e747iih4pmp@4ax.com>

On 30 Jun 2002 18:52:37 -0400, Warp <war### [at] tagpovrayorg> wrote:

>  Isn't a) implicitly true? Three points always define a plane.

Yes, but they do not always define a unique plane. If they are
collinear, they define a plane stack.


Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vipbg
TAG      e-mail : pet### [at] tagpovrayorg

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