Am 02.06.2013 18:03, schrieb Cousin Ricky:
> In POV-Ray 3.7, a transparent sphere_sweep using a B-sline or a cubic spline
> sometimes shows a disc at the endcaps.  (Note also that in this particular
> example, the artifact on the right end does not cast a shadow, but on the left
> end, a shadow is cast even though the artifact barely shows in the sphere_sweep
> itself.)  Is this a known bug?

3rd order (i.e. cubic and similar) spline sphere sweeps are known to 
have serious math issues, so I'm not at all surprised.

Someone needs to re-work the whole 3rd order sphere sweep math sooner or 
later.

Post a reply to this message