Warp wrote:
  >   Not true. The size of the projection is still determined using the
> distance between location and look_at. Just try it if you don't believe me.
> 

Hi Warp,
I did test it before my first post; perhaps we are talking about 
different things. Here is my test scene:

// -w150 -h150
background { color rgb <1,1,1> }

sphere { 0, 1 }

#declare PositionZ = 10;
#declare LookAtZ = 0;

// change the above values at will, keeping
// PositionZ > 1
// and
// LookAtZ < PositionZ

camera {
   orthographic
   location <0,0,PositionZ>
   look_at <0,0,LookAtZ>
   right 2*x
   up 2*y

}

Regards,
Hugo.

-- 
www.bishop3d.com

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