POV-Ray : Newsgroups : povray.general : Normal of a triangle : Re: Normal of a triangle Server Time
30 Jul 2024 00:28:12 EDT (-0400)
  Re: Normal of a triangle  
From: Warp
Date: 26 Mar 2010 16:16:31
Message: <4bad161e@news.povray.org>
Charles C <nomail@nomail> wrote:
> In your sanity checks I suggest also checking for non-co-linearity. VAngleD(A,B)

  The cross-product itself checks for colinearity: If the points are
colinear, the result will be a zero vector.

-- 
                                                          - Warp


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