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From: walrus@wam.umd.edu (Udo K Schuermann)
Newsgroups: comp.sys.amiga
Subject: Re: Imagine 1.0 bugs and comments
Message-ID: <1990Dec18.202423.4751@wam.umd.edu>
Date: 18 Dec 90 20:24:23 GMT
References: <1990Dec16.214928.3290@wam.umd.edu> <1190@etnibsd.UUCP> <36933@cup.portal.com> <1375@rust.zso.dec.com>
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Reply-To: walrus@wam.umd.edu (Udo K Schuermann)
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In article <1375@rust.zso.dec.com> davis@soomee.zso.dec.com (Mark W. Davis) writes:
>I have been unable to render a "glass" object in Imagine or Imaginefp.
>I first tried imitating the techniques I use in Silver to create glass
>then used various combinations of attributes with no success.  When
>rendered in "trace" the object looks EXACTLY like the same object
>rendered in "scanline".  Any recommendations?

What are the attributes of the glass object?  Do you have an
appropriate background to show refraction, and foreground to reflect
in the glass?  What exactly is the problem with the object?
	I had a chrome and a glass sphere once and both looked almost
exactly alike because of inappropriately chosen backgrounds and
lighting conditions.
	The only difference between Trace and Scanline is: CAST
shadow, refraction, and reflection.  That and speed, of course.

 ._.  Udo Schuermann        "How is American beer similar to making love in
 ( )  walrus@wam.umd.edu    a canoe?" -- "Both are f***ing close to water."