POV-Ray : Newsgroups : povray.general : Image Size vs. Rendering Times-- REPOST : Re: Image Size vs. Rendering Times-- REPOST Server Time
11 Aug 2024 07:17:19 EDT (-0400)
  Re: Image Size vs. Rendering Times-- REPOST  
From: GRedway
Date: 22 Aug 1999 14:14:59
Message: <37C03DEA.B8D0F2C4@Totalise.co.uk>
A suggestion: radiosity?

	Graham Redway

Matt Swarm wrote:
> 
> Hi Folks:
> 
> In a recent benchmarking discussion it was suggested that one way to
> "equalize" (in terms of testing times) older machines and increasingly fast
> machines-- all the way up to supercomputers-- was to simply make the image
> larger for the hotties.  Then use a correction factor.
> 
> The thinking goes:  Use a standard image, let a 486/33 render it at 320x240,
> and let the monster render it at 320,000x240,000.    If they both take
> exactly 5 minutes, say, the Hottie Monster is 1,000,000 times as efficient.
> (One million times the number of pixels.)
> 
> My concern with this approach is that while we are scaling the image in two
> dimensions, we are calculating lighting effects in THREE dimensions.
> 
> Mark Wagner, who mentioned the scaling approach, feels that antialiasing
> would skew the results.
> 
> My question is:  What OTHER functions WILL or MIGHT make the compute times
> go longer than the scaling factor for 2D (area) and more toward 3D (volume).
> 
> Armed with suggestions, I'd like to conduct tests.
> 
> Matt


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