win10&osg3..6.4
BoundingBox bb;
bb._min = osg::vec3d(0,0,0);
bb._max = osg::vec3d(1000,1000,1000);
Polytope poly;
poly.setToBoundingBox(bb);
//
osg::ref_ptr<osgUtil::PolytopeIntersector> picker = new
osgUtil::PolytopeIntersector(osgUtil::Intersector::VIEW,poly);
picker->setPrecisionHint(osgUtil::Intersector::USE_DOUBLE_CALCULATIONS);
picker->setPrimitiveMask(osgUtil::PolytopeIntersector::POINT_PRIMITIVES);
picker->setIntersectionLimit(osgUtil::Intersector::NO_LIMIT);
//
osgUtil::IntersectionVisitor iv(picker);
_videoFusionNode->accept(iv);//group node of scene
if (picker->containsIntersections())
{
//Can't intersection
}
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