Divide by zero errors in psSegsIsectNode

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Robert Reif (reif++at++ntsc-rd.navy.mil)
25 Oct 93 12:42:00 EST

I am having a problem with floating point exceptions (Performer Info (101):
FP division by zero) occasionally when using pfSegsIsectNode with multiple
segments.

isect = pfSegsIsectNode(scene, segment, NUM_SEG,
        PFTRAV_IS_PRIM | PFTRAV_IS_NORM | PFTRAV_IS_CULL_BACK,
        0xffffffff, NULL, result, NULL);

When run in CASEVision I get the following message:

pfSegIsectBox(<stripped>) ["geomath.c":1500, 0xe00df28]

The problem only occurs when the segments are near something to intersect.

HW/SW
V35 elan
OS 4.0.5A
IDO 4.0.1
C++ 2.1.1
Performer 1.0

Robert Reif
reif++at++ntsc-rd.navy.mil

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