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From: mkibler@yoda.eecs.wsu.edu (Michael K. Kibler)
Newsgroups: comp.sys.sgi
Subject: Clipping Problem with 4D/60T
Message-ID: <1991Apr28.203916.12101@serval.net.wsu.edu>
Date: 28 Apr 91 20:39:16 GMT
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Organization: Washington State University
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Originator: mkibler@yoda.eecs.wsu.edu


I think that I have seen this problem posted before, but I have
lost that information, so here goes.

I am trying to display smooth shaded polygons on my 4D/60T 
running 3.3.2. The problem arises when the polygons are clipped
to the hither plane. It seems to incorrectly interpolate
between polygons that are being clipped. I get the same
results if I pass my own color info down or let the system
calculate it using local lighting models. 

Is there a fix to this problem??

I have tried messing around with the viewport/scrmask and that
mostly gets around the problem for the right and top part of the
screen, but not the left and bottom.


Thanks in advance.
-- 
 ---- Mike  ( ~~ Radiosity is more than just heat! )
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 Michael K. Kibler        INTERNET:  mkibler@eecs.wsu.edu
 Elect/Compt. Engr. Dept. UUCP    :  ...uunet!eecs.wsu.edu!mkibler