POV-Ray : Newsgroups : povray.programming : How normal vector computation works in Povray ? : Re: How normal vector computation works in Povray ? Server Time
1 Jul 2024 07:07:11 EDT (-0400)
  Re: How normal vector computation works in Povray ?  
From: ABX
Date: 19 May 2004 12:48:17
Message: <lm3na0d3pq9qosnnu33kkajodjr7d7eos7@4ax.com>
On Wed, 19 May 2004 12:25:44 EDT, "Helix" <nomail@nomail> wrote:
> So, why it doesn't work ? And how Povray proceed to compute normal vector ?

In short Normal in Point P on torus surface has direction of vector which ends
in point P and begins in nearest to P point on circle created by major rarius.
So all you need is to normalize this vector. HTH,

ABX


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