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From: rdd@walt.cc.utexas.edu (Robert Dorsett)
Newsgroups: comp.graphics
Subject: Optimizing graphics operations
Message-ID: <24926@ut-emx.UUCP>
Date: 22 Feb 90 22:50:11 GMT
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Reply-To: rdd@walt.cc.utexas.edu (Robert Dorsett)
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Organization: The University of Texas at Austin, Austin, Texas
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I'm looking for references to numerical techniques to spruce up graphics
operations on low-performance computers (i.e., those without floating-
point processors).  In general, I need information on how to build *efficient*
libraries for:

a.  Usage of arbitrary-length fixed-point numbers and regular integers for
graphics operations;

b.  A *specific* case--how to go about clipping very large real-world 
coordinates (represented as long integers) to integer coordinates, in the 
meantime avoiding any possibility of overflow.


Please respond via email.  I'll summarize replies.


Robert Dorsett                                   
Internet: rdd@rascal.ics.utexas.edu               
UUCP: ...cs.utexas.edu!rascal.ics.utexas.edu!rdd