POV-Ray : Newsgroups : povray.general : A good blurred reflection with bumps : Re: A good blurred reflection with bumps Server Time
3 Aug 2024 22:17:47 EDT (-0400)
  Re: A good blurred reflection with bumps  
From: Christopher James Huff
Date: 6 Jan 2004 08:47:52
Message: <cjameshuff-5FDFC2.08475306012004@netplex.aussie.org>
In article <3ffaafe1$1@news.povray.org>,
 "Hugo Asm" <hua### [at] post3teledk> wrote:

> When random normals are scaled very big, they reveal a 'banding' effect that
> I would say is more inaccurate than 'noise' because it catches the eye and
> is perceived as "this looks wrong" rather than "this image has a little
> noise".

It is no less accurate...what you are talking about is a sampling 
artifact. The actual inaccuracy is the same, the errors in the small 
normal method are just less spatially organized. The banding is usually 
easier to eliminate than noise...the situation is very similar to the 
tradeoffs between method 1 and method 2 or 3 media.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/


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