Re: pfMakePtsPlane in Performer 1.2 for IRIX 4.05H

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Jim Helman (jimh++at++surreal)
Tue, 21 Jun 94 10:48:46 -0700

The code for this routine is extremely simple and is
identical in 1.1 and both 1.2 versions (5.2 and 4.0.5).
I can't think of any reason why it would behave
differently on 4.0.5H vs. 5.2 or on a Crimson vs. Onyx.

Bad FP values or colinear points could cause an FP
exception, but as far as I can tell, a SEGV would only
be caused by a bad pointer either one of the pfVec3 src
args or the pfPlane* dst arg.

Can you get it to fail in a simple case?

rgds,

-jim helman

jimh++at++surreal.asd.sgi.com
415/390-1151

  Date: Tue, 21 Jun 94 08:34:01 PDT
  From: goodhart++at++cod.nosc.mil (Curtis L. Goodhart)
  To: info-performer++at++sgi.sgi.com
  Subject: pfMakePtsPlane in Performer 1.2 for IRIX 4.05H
   
  Has anybody had any problems with the function pfMakePtsPlane.
  I've been getting segmentation violations (I think) when I
  call that function. I remember this problem in the past too,
  perhaps on a Beta version. Just wondering if anyone has seen
  any similar behavior.
   
  Running Performer 1.2 on IRIX 4.05H on a Crimson Reality Engine.
   
       Curt
   
  PS I haven't had any problem with this on Performer 1.2 for
  IRIX 5.2 on an Onyx.
   
   

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