GSet Isect Mask?

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Gan Wang (gan++at++cavalier.cambridge.com)
Fri, 8 Nov 1996 11:12:30 -0500

I am trying to do isect with gset as below:

pfGetTerrainMorphGSets(terrain, gsetList);
gset = (pfGeoSet *) pfGet(gsetList, 0);

At this point I look at the gset isect mask and it's 0xffffffff or the default
as said in the man page. But

pfGSetIsectSegs(gset, &segset, hits);

yields no intersection hit. (my segset.isectMask is also set to 0xffffffff.)
 But if I explicitly set the gset isect mask every time before the
pfGSetIsectSegs() call, e.g., pfGSetIsectMask(gset, 0x1, PFTRAV_SELF, PF_SET),
the isect would yield the correct result.

Am I missing something really dumb?

Gan

-- 


Gan Wang


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