POV-Ray: Newsgroups: povray.programming: Inverse transforms inefficiency

POV-Ray : Newsgroups : povray.programming : Inverse transforms inefficiency		Server Time 5 Jul 2024 15:22:00 EDT (-0400)

From: Christoph Hormann
Subject: Inverse transforms inefficiency
Date: 22 Jan 2003 12:01:10
Message: <3E2ECE55.CC593695@gmx.de>

In parse.cpp, function 'Parse_Transform_Block()' it calls 'MInvers()' two
times:

   if(isInverse == true)
   {
       MInvers(New->matrix, New->matrix);
       MInvers(New->inverse, New->inverse);
   }

instead of just swapping the matrices.  I can't find any reason for this,
i suppose it is just some unintended inefficiency.

Christoph

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