> ... the distribution is stronly anisotropic at the lower
> parts of the hemisphere.
Should the distribution isotropic then? I did my best generating a costheta
distribution, which is an anisotropic distribution. But maybe I'm completely
wrong and confused here heheheheh....... (All I want is a HUGE set of
samples that have the same quality the distribution set of the currently
official POV-Ray.)
If I would like to distribute the samples randomly but still evenly on a
(hemi)sphere, off course I wouldn't use any 2d projections onto spheres.
Using 3d math will be much more convenient in such a case IMHO.

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