POV-Ray : Newsgroups : povray.windows : NEW: Rendering on multiple PC's with many CPU's : Re: More Numbers ... Server Time
5 Jul 2024 09:36:20 EDT (-0400)
  Re: More Numbers ...  
From: Ken
Date: 11 Aug 2002 10:35:36
Message: <3D5676A9.194D0652@pacbell.net>
Theo Gottwald * wrote:
> 
> I've tested two original Scenes in diffrent ways. Here is the original
> Log-file:
> 
> patio-radio rendered in 1024x768 in 1 Tiles (-) from 08-11-2002 / 07:03:09
> to 08-11-2002 / 07:21:14 (1084).
> 
> cornell rendered in 1024x768 in 1 Tiles (-) from 08-11-2002 / 07:21:16 to
> 08-11-2002 / 07:29:47 (511).
> 
> patio-radio rendered in 1024x768 in 2 Tiles (V) from 08-11-2002 / 08:01:28
> to 08-11-2002 / 08:15:17 (829).
> 
> cornell rendered in 1024x768 in 2 Tiles (V) from 08-11-2002 / 08:15:18 to
> 08-11-2002 / 08:20:01 (284).
> 
> cornell rendered in 1024x768 in 8 Tiles (H) from 08-11-2002 / 08:49:56 to
> 08-11-2002 / 08:53:47 (230).
> 
> patio-radio rendered in 1024x768 in 8 Tiles (H) from 08-11-2002 / 08:49:53
> to 08-11-2002 / 09:00:06 (614).

The question with radiosity and photons is not whether your method is
faster but whether the image *quality* is the same. If you carefully
compare the images you are quite likely to find there are distinct
differences between what a single engine render produces and what
your tiles method produces. There is no doubt that for most of
POV-Ray's features your program has substantial possibilities for
speed improvements but for a small subset of POV-Ray's features your
program cannot resolve the problems inherent with those features in
muti tile renderings. It is true they will still render faster but
if you did an analytical comparison of the two methods you will find
that the images your program produces are not identical to the images
a single instance of POV-Ray will produce.

-- 
Ken Tyler


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