"Ken" <tyl### [at] pacbellnet> wrote in message
news:3DF23FB7.F7D16E4D@pacbell.net...
>
>
> 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

I don't really know what this entails. i just read how i can turn it off,
but then do i have to manually set bounded_by for the sphere_sweep? or do I
just leave bounding off alltogether? Thankyou all for the info.
sphere_sweeps are fun, too bad they take a bit of time to render :)

ross

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