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From: steve@bambi.UUCP (Steve Miller)
Newsgroups: net.graphics
Subject: Re: Wave-front ray tracing?
Message-ID: <292@bambi.UUCP>
Date: Tue, 4-Mar-86 18:27:30 EST
Article-I.D.: bambi.292
Posted: Tue Mar  4 18:27:30 1986
Date-Received: Wed, 5-Mar-86 06:18:27 EST
References: <13300001@ccvaxa> <5076@alice.uUCp>
Organization: Bell Communications Research Inc., Morristown, NJ
Lines: 14

> Wave-tracing involves
> large numbers of 3-dimensional Fourier transforms

My undergraduate thesis involved predicting the amplitude functions
of plane waves scattered from regular dielectric solids.  By solving
a set of equations describing boundary constraints (obtainable from
Maxwell's equations), it was possible to predict the scattered wave
amplitude as a function of angle around the scattering center.  One
might extend this idea to apply the same boundary constraints to objects
scattering the scattered wave, and so forth.  Whether this is sensible
for objects much larger than light wavelengths (my objects were around
1-10 microns) is a question.  But it did work for small objects.

	-Steve Miller ihnp4!bambi!steve