Re: [Plib-users] intersection MAX_HITS limitation

[Steve B. <sjb...@ai...>]

lo...@sl... wrote:
> All of the code in PLIB that deals with intersection testing (ssgIsect, 
> ssgHOT, etc.) has a limit of returning 100 records of hit data (see 
> http://plib.sourceforge.net/ssg/non_class.html and the code, look for 
> MAX_HITS).  Was this an arbitrary limit or a technical limit?  The reason 
> I ask is because it seems to be an awfully low limit in my opinion but 
> maybe that's because I'm missing the reasoning behind it being 100.

I think it's an arbitary limit...I don't think it's awfully low - to the
contrary - it's rather unusual to actually intersect more than a handful
of triangles.  Remember this is using an infinitely thin ray and only
recording triangles that were actually intersected.  I think 100 is actually
a rather generous limit.

Still - it's only memory - so if you feel a desperate need to increase it,
please feel free.

I'd be suspicious of poor design elsewhere if there truly were more than
100 triangles in line for an intersection request.

----------------------------- Steve Baker -------------------------------
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