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From: leech@homer.cs.unc.edu (Jonathan Leech)
Newsgroups: sci.virtual-worlds
Subject: Interactive soft modelling (was Re: VR in art - medium or instrument?)
Message-ID: <17813@thorin.cs.unc.edu>
Date: 29 Nov 90 02:53:35 GMT
References: <11812@milton.u.washington.edu> <11890@milton.u.washington.edu>
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In article <11890@milton.u.washington.edu>, mg@munnari.oz.au (Mike
Gigante) writes:
|>With a pair of gloves, eyephones and lots of software, we hope to make
|>a really neat equivilent to clay modelling in VR space.

        Some people may remember a SIGGRAPH paper a few years back (I don't
have the exact reference) which used a depth span buffer to do real time
CSG. This only worked from one viewpoint, but was pretty neat to watch.
I recall the author referring to it as 'Cheese Whiz' due to the effect
of depositing a trail of material as the cursor moved about.

        With high-performance voxel systems becoming available (e.g.
people here can do several frames/second of a 128^3 voxel database raytraced
on our Pixel-Planes 5 system), it's natural to extend this concept to full
3D with the usual VR gadgets.