From Paul Martz, "I've attempted to make AutoTransform override computeBounds() to return

an invalid bounding sphere if it hasn't seen a cull traversal yet. It
depends on _firstTimeToSetEyePoint, which is initially true, then false
after a cull. There might be a better way? If so, let me know.

This change does resolve the issue I had encountered with auto scale to
screen and incorrect culling."

include/osg/AutoTransform

@@ -82,6 +82,7 @@ class OSG_EXPORT AutoTransform : public Transform
 
         virtual bool computeWorldToLocalMatrix(Matrix& matrix,NodeVisitor* nv) const;
 
+        virtual BoundingSphere computeBound() const;
 
 
     protected :

src/osg/AutoTransform.cpp

@@ -189,3 +189,16 @@ void AutoTransform::accept(NodeVisitor& nv)
     // now do the proper accept
     Transform::accept(nv);
 }
+
+BoundingSphere AutoTransform::computeBound() const
+{
+    BoundingSphere bsphere;
+
+    float scale( 1.f );
+    if ( getAutoScaleToScreen() && _firstTimeToInitEyePoint )
+        return bsphere;
+
+    bsphere = Transform::computeBound();
+
+    return bsphere;
+}