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From: sergio@sergio.uucp (Sergio Perrone/30000)
Newsgroups: comp.sys.sgi
Subject: Re: lmcolor and lighting a surface with a scalar field
Message-ID: <2810@auschs.ibm.com>
Date: 25 Jul 90 21:28:05 GMT
References: <2042@sparko.gwu.edu>
Sender: news@auschs.ibm.com
Reply-To: sergio@reed.UUCP (Sergio Perrone/30000)
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Organization: IBM AWD, Austin, TX
Lines: 12

Well, the _easy_ way to do that is to do something like this -

draw_surface_with_shading();
translate( 0.0, 0.0, -0.01 );
draw_surface_with_grey();

That doubles your drawing time, of course, but I don't see any other fairly
easy way to do it...

Marc

--- Marc Andreessen, IBM AWD Austin, sergio@sergio.austin.ibm.com ---