From c95868969be307d713fd36c150cb91cb0010c6a9 Mon Sep 17 00:00:00 2001
From: scrawl <scrawl@baseoftrash.de>
Date: Sat, 4 Feb 2017 01:22:43 +0100
Subject: [PATCH] Early out for scene graphs with no update callbacks in
 SceneManager::notifyAttached

---
 components/resource/scenemanager.cpp | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/components/resource/scenemanager.cpp b/components/resource/scenemanager.cpp
index de4ce28a55..c975286ce9 100644
--- a/components/resource/scenemanager.cpp
+++ b/components/resource/scenemanager.cpp
@@ -478,8 +478,12 @@ namespace Resource
 
     void SceneManager::notifyAttached(osg::Node *node) const
     {
-        InitWorldSpaceParticlesVisitor visitor (mParticleSystemMask);
-        node->accept(visitor);
+        // we can skip any scene graphs without update callbacks since we know that particle emitters will have an update callback set
+        if (node->getNumChildrenRequiringUpdateTraversal() > 0)
+        {
+            InitWorldSpaceParticlesVisitor visitor (mParticleSystemMask);
+            node->accept(visitor);
+        }
     }
 
     Resource::ImageManager* SceneManager::getImageManager()