sproc and pfNodeIsectSegs

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Nebojsa Jojic (jojic++at++ifp.uiuc.edu)
Thu, 24 Oct 1996 13:25:42 -0500 (CDT)

In the guide, I found a sentence mentioning the possibility of
parallizing intersection testing by using sproc(). However, there is not
a sample code nor any further information on this.

I need to test intersection of large number of line segments (1000-10000)
with a large number of triangles in a static geometry set (2000-3000
polygons) for each frame. I do not need my simulation to run in real time,
but I need to get the most of the computer power, as testing 10000 segment
against 2500 polygons take about 40 seconds on ONYX using one processor.
We have 6 processors, and I would like to use them all. I'll cut on the
computation by partitioning space into cells, but additional processing
power will still be a very nice thing. Does anybody have a sample code
demonstrating the use of pfNodeIsectSegs and sproc?

Nebojsa Jojic
Image Formation and Processing Group
Beckman Institute
U of Illinois at Urbana-Champaign

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