From 6622e36226cd9fe349fcf696fd1f77a909bf52d0 Mon Sep 17 00:00:00 2001
From: Capostrophic <alexdobrohotov@yandex.ru>
Date: Sun, 9 Jun 2019 11:47:43 +0300
Subject: [PATCH] Only merge pure osg::Groups in the optimizer

---
 components/sceneutil/optimizer.cpp | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/components/sceneutil/optimizer.cpp b/components/sceneutil/optimizer.cpp
index 7c568ff9d7..e8ebed8686 100644
--- a/components/sceneutil/optimizer.cpp
+++ b/components/sceneutil/optimizer.cpp
@@ -1802,12 +1802,11 @@ bool Optimizer::MergeGeometryVisitor::mergePrimitive(osg::DrawElementsUInt& lhs,
 
 bool Optimizer::MergeGroupsVisitor::isOperationPermissible(osg::Group& node)
 {
-    return !node.asSwitch() &&
-           !node.asTransform() &&
-           !node.getCullCallback() &&
+    return !node.getCullCallback() &&
            !node.getEventCallback() &&
            !node.getUpdateCallback() &&
-            isOperationPermissibleForObject(&node);
+            isOperationPermissibleForObject(&node) &&
+           typeid(node)==typeid(osg::Group);
 }
 
 void Optimizer::MergeGroupsVisitor::apply(osg::LOD &lod)