Hello Glenn,
> Is there a way to tell the osgUtil::IntersectionVisitor to stop searching
> once it finds one (or "n") intersections?
I don't know about IntersectionVisitor, but Adrian Egli's kdTree
implementation for OSG supports this (in that case, it's to make
raytracing shadows faster - you check a line segment between the
current surface point and the light(s), and if there is an
intersection you know the point is in shadow; no need to check for
more than one intersection).
However, that contribution is currently not fit for integration into
OSG. I have promised to do some work on that, but am currently too
busy finishing up my Masters thesis... Once that's done I'll be able
to put some work on this. In addition, the kdTree structure is a whole
lot faster for the actual intersection test, especially if all the
geometry is rigid (non-deforming - transformations by Transform nodes
is OK).
Sorry for the bad news, but I wanted you to know that something's
coming, just that it's not there yet.
J-S
--
______________________________________________________
Jean-Sebastien Guay [EMAIL PROTECTED]
http://whitestar02.webhop.org/
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