POV-Ray : Newsgroups : povray.binaries.images : Effect on Render Rate of Radiosity Count and Error Bound Server Time
19 Nov 2024 10:31:05 EST (-0500)
  Effect on Render Rate of Radiosity Count and Error Bound (Message 1 to 3 of 3)  
From: Tim Cook
Subject: Effect on Render Rate of Radiosity Count and Error Bound
Date: 26 Feb 2005 17:01:34
Message: <4220f1be@news.povray.org>
Pixels per second count increases along the z axis (or, the negative y 
axis if you're using the left-hand rule).  Data set was generated by 
taking the overall average pixel per second count of one render at each 
setting.

Radiosity settings were:
   Brightness 1
   Count 1, 10, 100 and 1000
   Error Bound 1.0 through 0.1 at intervals of 0.3
   Gray Threshold 0
   Low Error Factor 0.8
   Minimum Reuse 0.015
   Nearest Count 6
   Recursion Limit 3
   ADC Bailout 0.01
   Pretrace Start 0.08
   Pretrace End 0.04
   Maximum Sample -1
   Always Sample On
   Media Off
   Normal Off

Render size was 800x600, antialiasing on with threshold of 0.1, 0 
jitter, 2x2 rays, method adaptive recursive.

Computer is 1.5 GHz Celeron with 512 MB RAM.

Data set is:
            1    10    100   1000 count
err. 1.0 25295 24030 14563  3314
      0.7 22885 20025  9612  1612
      0.4 22885 16020  3907   393
      0.1 10225  6241   541    42

It'd probably be more accurate if I ran more tests and averaged them, as 
well as increased samples.

-- 
Tim Cook
http://home.bellsouth.net/p/PWP-empyrean

-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------


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From: Tim Cook
Subject: Re: Effect on Render Rate of Radiosity Count and Error Bound
Date: 26 Feb 2005 17:24:21
Message: <4220f715@news.povray.org>
Thumbnails of the test renders.

-- 
Tim Cook
http://home.bellsouth.net/p/PWP-empyrean

-----BEGIN GEEK CODE BLOCK-----
Version: 3.12
GFA dpu- s: a?-- C++(++++) U P? L E--- W++(+++)>$
N++ o? K- w(+) O? M-(--) V? PS+(+++) PE(--) Y(--)
PGP-(--) t* 5++>+++++ X+ R* tv+ b++(+++) DI
D++(---) G(++) e*>++ h+ !r--- !y--
------END GEEK CODE BLOCK------


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From: regdo
Subject: Re: Effect on Render Rate of Radiosity Count and Error Bound
Date: 26 Feb 2005 18:14:09
Message: <422102c1@news.povray.org>
Tim Cook wrote:
> Thumbnails of the test renders.
> 
> 
> ------------------------------------------------------------------------
> 
Looks like a good Wiki-Pov candidate ...
Interesting data.


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