Christopher James Huff wrote:
> 
> In article <3df2378c$1@news.povray.org>,
>  "Ross Litscher" <lit### [at] osuedu> wrote:
> 
> > With the sphere_sweep i get about 30 PPS and without it I get 340 PPS, and
> > this is where there is nothing but a blue wall with just a simple pigment
> > { rgb <0.05, 0.30, 0.80> }. So my question is, if its not apparent yet, why
> > does a sphere sweep affect the render time so much even when it is not
> > currently rendering any part of the sphere_sweep? Is there any way to reduce
> > this affect (i'm no master pov'er, i don't know such things)
> 
> Well, a sphere sweep is a difficult object to bound, POV probably just
> doesn't know the sweep is not visible. Sphere sweeps are just pretty
> slow, though I think there is work being done on speeding them up, with
> better bounding and other optimizations.

It might even render faster with automatic bounding turned off.

-- 
Ken Tyler

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