> We all know that perspective projection is for projecting on a flat
> surface, and that the perspective reference point is at the center. But
> what if you want to make 'perfect' cross-eyed stereo renderings, like
> me?

I create stereoscopic rendering "all the time" using PovRay, 
indeed some of the content is for this
   http://www.vroom.org.au
   http://astronomy.swin.edu.au/~pbourke/stereographics/vroom/
but also for daily visualisation. The basic approach I use 
involves image trimming, it is easy to set up a processing
pipline to deal with this. See
   http://astronomy.swin.edu.au/~pbourke/povray/raystereo/

-- 
Paul Bourke
pdb_NOSPAMswin.edu.au

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