On Fri, 14 Sep 2007 10:41:20 -0400, Sebastian wrote:

man povray gives (among other things)

   Tracing options:
       MBn or Bounding=bool Bounding_Threshold=integer
              Use automatic bounding slabs if more than n objects are  
in  the
              scene.

       Qn or Quality=integer
              Render  at  quality  n.  Qualities range from 0 for rough 
images
              and 9 for complete ray-tracing and textures, and 10 and  
11  add
              radiosity.

       A0.n or Antialias=bool Antialias_Threshold=integer
              Do antialiasing on the pixels until the difference between 
adja‐
              cent pixels is less that 0.n, or the maximum recursion 
depth  is
              reached.

       AMn or Sampling_Method=integer
              Specify  the  method of antialiasing used, non-adaptive (n 
= 1),
              or adaptive antialiasing (n = 2).

       Jn.n or Jitter=bool Jitter_Amount=float
              Specify maximum radius,  in  pixels,  that  antialiased  
samples
              should be jittered from their true centers.

       Rn or Antialias_Depth=integer
              Set  the  maximum recursion depth for antialiased pixel sub-
sam‐
              pling.

       UA or Output_Alpha=bool
              Use alpha channel for transparency mask.

       UL or Light_Buffer=bool
              Use light buffer to speed up rendering.

       UV or Vista_Buffer=bool
              Use vista buffer to speed up rendering.

HTH.

Jim

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