From bc14778fac3bade84dbd2db67da5555fbd603dd3 Mon Sep 17 00:00:00 2001
From: David Rose <david@ddrose.com>
Date: Wed, 8 Apr 2009 17:53:53 +0000
Subject: [PATCH] fix CollisionVisualizer

---
 panda/src/collide/collisionVisualizer.cxx | 15 +++++++++++++++
 panda/src/collide/collisionVisualizer.h   |  1 +
 2 files changed, 16 insertions(+)

diff --git a/panda/src/collide/collisionVisualizer.cxx b/panda/src/collide/collisionVisualizer.cxx
index 12f723601b..9633b768d5 100644
--- a/panda/src/collide/collisionVisualizer.cxx
+++ b/panda/src/collide/collisionVisualizer.cxx
@@ -251,6 +251,21 @@ cull_callback(CullTraverser *trav, CullTraverserData &data) {
   return true;
 }
 
+////////////////////////////////////////////////////////////////////
+//     Function: CollisionVisualizer::is_renderable
+//       Access: Public, Virtual
+//  Description: Returns true if there is some value to visiting this
+//               particular node during the cull traversal for any
+//               camera, false otherwise.  This will be used to
+//               optimize the result of get_net_draw_show_mask(), so
+//               that any subtrees that contain only nodes for which
+//               is_renderable() is false need not be visited.
+////////////////////////////////////////////////////////////////////
+bool CollisionVisualizer::
+is_renderable() const {
+  return true;
+}
+
 
 ////////////////////////////////////////////////////////////////////
 //     Function: CollisionVisualizer::output
diff --git a/panda/src/collide/collisionVisualizer.h b/panda/src/collide/collisionVisualizer.h
index ab5855d5da..72ba144aea 100644
--- a/panda/src/collide/collisionVisualizer.h
+++ b/panda/src/collide/collisionVisualizer.h
@@ -51,6 +51,7 @@ public:
   // from parent class PandaNode.
   virtual PandaNode *make_copy() const;
   virtual bool cull_callback(CullTraverser *trav, CullTraverserData &data);
+  virtual bool is_renderable() const;
   virtual void output(ostream &out) const;
 
   // from parent class CollisionRecorder.