From: Dorosky, Christopher G (christopher.g.dorosky++at++lmco.com)
Date: 10/02/2001 05:14:51
Hi,
I am running performer 2.2.11.
There is a function call, listed in the pfSeg man page, that is something
like pfTriIsectSeg. (I am not at my SGI right now).
It accepts three pfVec3's which describe a triangle, and a pfSeg, which
describes a line segment.
If my triangle is
(0,0,0)
(4,0,0)
(0,3,0) - a 3-4-5 right triangle in two dimensions.
at the segment is
(1,1,1)
(1,1.5,0);
The intersection works as I would expect.
However, if I change the segment to:
(1,1,0)
(1,1.5,0)
Then the intersection returns false. It appears to by unable to calculate
coplanar intersections of triangles and segments.
Is this a bug that has been fixed, or is it worth reporting?
Christopher Dorosky
Lead Electronic Systems Engineer - Real Time Simulation
Lockheed Martin Missiles and Fire Control - Dallas
christopher.g.dorosky++at++lmco.com
972-603-2349
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