POV-Ray : Newsgroups : povray.binaries.images : Disappointing [~23kB] : Re: Disappointing [~23kB] Server Time
18 Aug 2024 06:10:05 EDT (-0400)
  Re: Disappointing [~23kB]  
From: ingo
Date: 2 Jun 2001 18:45:06
Message: <Xns90B57A66B3DAseed7@povray.org>
in news:3B193E67.8E524650@yahoo.com Simon Lemieux wrote:

> You might not need this smoothness in the body, but only in the
> 'some kind of spikes' and the junction to the body, then if you're
> able to concentrate smoothness there, you might need a lesser
> number of triangles for an overall extremely smooth mesh...

 What I've been thinking is to check the angles of the normals on the 
four points of the polygon. If one angle is bigger or smaller that a 
certain given angle, or deviates too much from the average, subdivide 
the polygon. Problem will probably be finding the threshold when to 
start subdividing / taking more samples. Especialy for more complex 
surfaces like sperical harmonics. 
 http://www.lifesmith.com/spharmin.html

Ingo

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