title: Forcing aggressive supersampling in a raytracer
body: <p>Does anyone know how to force a large amount of supersampling in Blender or POV-Ray, say 100 samples per pixel, at least?  This is for a research project that is heavily dependent on sub-pixel artifacts.  Rendering a large image and shrinking it will not work because a few critical pixels will be very bright, and the output values will be clipped.  They would need to be averaged <em>before</em> clipping.</p>
  
  <p>Blender seems to support only <a href="http://wiki.blender.org/index.php/Doc%3aManual/Render/Oversampling_%28Antialiasing%29" rel="nofollow">5, 8, 11, or 16 samples</a>, since it uses predefined sampling patterns.</p>
  
  <p>POV-Ray <a href="http://www.povray.org/documentation/view/3.6.1/223/" rel="nofollow">does not support non-adaptive supersampling methods</a>, which is necessary because there is a large variation within pixels that may not be apparent from variation between pixels.</p>