POV-Ray : Newsgroups : povray.newusers : Something holding up the works... : Re: Something holding up the works... Server Time
5 Sep 2024 00:15:30 EDT (-0400)
  Re: Something holding up the works...  
From: Warp
Date: 15 Oct 2002 04:41:38
Message: <3dabd4c1@news.povray.org>
LibraryMan <mrm### [at] attnet> wrote:
> OK, as an example, here's what I get after commenting out area lights, sky
> sphere, and a not-very-complex wall object.  Is it typical to have the
> bounding box(es) take such a high percentage? (I really don't understand
> what I'm seeing here)

  In theory, the higher the success percentage in that list, the better.
  A low percentage means that lots of rays were tested against the object
in question, but it did not hit it very often. This means that quite lot
of useless work was done.
  On the other hand, a high percentage means that that most of the rays
did hit the object and the amount of wasted work was minimal.

  However, if the success percentage of a bounding box is high but the
one of the object inside this bounding box is very small, that's usually
a sign that the bounding box is not very optimal for that object (ie.
it's way too big).
  Naturally not all objects can have an optimal bounding box (eg. if the
object is very thin and extends to a large area, like a net or something
similar).

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -


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