Mark Weyer wrote:
> 
> I do not see why the quality is better than using repulsion
> inside the unit circle with a uniform force field before projecting.

To me it seems fairly obvious that projecting a disc on a hemisphere does
not maintain the distance relations and therefore reduces the uniformity
of a distribution.  

To be precise, the points at the rim of the hemisphere will be quite dense
in direction of the circumference but will be moved apart in theta
direction.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 15 Nov. 2002 _____./\/^>_*_<^\/\.______

Post a reply to this message