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From: okeefe@cs.Buffalo.EDU (Paul O'Keefe)
Newsgroups: comp.graphics.visualization
Subject: Re: surface rendering of fuzzy cloud
Message-ID: <74189@eerie.acsu.Buffalo.EDU>
Date: 1 May 91 17:36:48 GMT
References: <2594@amethyst.math.arizona.edu> <73521@eerie.acsu.Buffalo.EDU> <1991Apr30.182711.2223@fido.wpd.sgi.com>
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|> In article <73521@eerie.acsu.Buffalo.EDU>, okeefe@cs.Buffalo.EDU (Paul O'Keefe) writes:
|>
|> Mark LeVoy of UNC/Chapel Hill has an iso-value surface rendering algorithm
|> which is detailed in his widely cited article,
|> "The Display of Surfaces from Volume Data", IEEE CG&A, May 1988.

A few amendments:

1) That's Levoy, not LeVoy, and he's now Assistant Professor of Computer
   Science at Stanford.

2) For rendering clouds, volume rendering is not the correct approach.
   For one thing, the spatial location of the points in a cloud are not
   restricted to a grid as is volume data.

3) At SIGGRAPH `91, there will be a course called,
  "Photo-realistic Volume Modeling and Rendering Techniques".
   The lectures include James Kajiya of CalTech and Ken Perlin of NYU.
    Topics include "volume tracing techniques for rendering
   atmospheric effects and laminar flame model; volume rendering of soft
   objects". Get a copy of the course notes at SIGGRAPH.

4) Consult the publications of Kajiya, Blinn, Perlin and others for tips
   on rendering fuzzy clouds.

Paul O'Keefe
SUNY at Buffalo