POV-Ray: Newsgroups: povray.unofficial.patches: all determinants too small?

POV-Ray : Newsgroups : povray.unofficial.patches : all determinants too small?		Server Time 1 Nov 2024 03:15:29 EDT (-0400)

From: Warp
Subject: all determinants too small?
Date: 28 Jun 2001 12:03:18
Message: <3b3b5545@news.povray.org>

I get the message "all determinants too small" several times when rendering
a mesh2. What does it mean and why does it appear?

-- 
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -

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From: Nicolas Calimet
Subject: Re: all determinants too small?
Date: 13 Jul 2001 11:40:43
Message: <3B4F167B.6393E373@iwr.uni-heidelberg.de>

>   I get the message "all determinants too small" several times when rendering
> a mesh2. What does it mean and why does it appear?

	Well, quite a bit late answer, but...

	In case you would not yet have checked in the source code,
I guess it has to do with the color-interpolation code (within mesh2
triangles) when each vertex carries its own texture. It probably
happens when vertices are too close from each other -- or something
similar. I didn't checked though. This warning could probably be
avoided with optimized code.

	-NC

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