From 79dddef77896b4f7546a3f812b86413577002dae Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Sat, 30 Jun 2007 09:27:11 +0000
Subject: [PATCH] From Sherman Wilcox, added check for Drawable cull callbck
 into apply(Billboard)

---
 src/osgUtil/CullVisitor.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/osgUtil/CullVisitor.cpp b/src/osgUtil/CullVisitor.cpp
index b2da939a4..dc80bf1ec 100644
--- a/src/osgUtil/CullVisitor.cpp
+++ b/src/osgUtil/CullVisitor.cpp
@@ -829,6 +829,12 @@ void CullVisitor::apply(Billboard& node)
         // need to modify isCulled to handle the billboard offset.
         // if (isCulled(drawable->getBound())) continue;
 
+        if( drawable->getCullCallback() )
+        {
+            if( drawable->getCullCallback()->cull( this, drawable, &_renderInfo ) == true )
+                continue;
+        }
+
         RefMatrix* billboard_matrix = createOrReuseMatrix(modelview);
 
         node.computeMatrix(*billboard_matrix,eye_local,pos);