|
 |
On Wed, 02 Oct 2002 09:05:24 -0400, Rafal 'Raf256' Maj quoth:
> "Marc-Hendrik Bremer" <Mar### [at] t-online de> wrote in
> news:3d9aec64@news.povray.org
>
>> There is really no need to build in everythink in the Pov-Code.
>
> speed ?
> We have i.e. 1 room (inverted box) inside with we have camera,
> lightsource and i.e. white sphere.
> Box is covered with function with 1-3 constructions like
> max(0,min(1,x+y...))
>
> And now we add radiosity - fo reach pixel formula min(max(... must be
> counted about 10..50 times depending on radiosity setting - that can
> probably give 5-15% of render time lost. Hmm I guess I should just add
> this minmax() function and see is speed improvment notacible :)
You won't gain much speed. For example, I once converted a complicated
isosurface function for clouds to an internal pattern, and only got a
speedup of about 10%. For a simple function such as clip(), you probably
won't be able to measure the speedup.
--
Mark
Post a reply to this message
|
|
