Bob Hughes wrote:

> It really comes down to the wire when you need a definition of what noise3d is
> actually supposed to be in the first place, which I assume is a common pattern
> algorithm(?).  A quick search and I found a web page listing many patterns:
> http://www.cinegrfx.com/tour/opbox-descriptions/Patterns.html  for a program
> called GenShade which outputs shaders for Renderman, BMRT... too bad they
> don't list the equations  :-)

noise3d is commonly reffered to as "perlin noise". You can find a good
description of it at Hugo's site -

http://freespace.virgin.net/hugo.elias/models/m_perlin.htm

A web search will un doubtably return other good results. If you are
really interested in noise functions I also recomment searching through
the RTNews archives at -

http://www.acm.org/tog/resources/RTNews/html/ 

-- 
Ken Tyler - 1400+ POV-Ray, Graphics, 3D Rendering, and Raytracing Links:
http://home.pacbell.net/tylereng/index.html http://www.povray.org/links/

Post a reply to this message