hi,all
when i use the function computeIntersections to pick a drawable in the
scene,it's Ok when i use osg::ShapeDrawable to build the scene。but the
computeIntersections doesn't work when i use self drawing,
I derive a class from osg::Drawable,and overwrite the function computeBound()
and drawImplementation（）.
why doesn't it work?
thanks for any hint
forest
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