From fd14dad7897e0c80836b33d2ed281bb4da0b551a Mon Sep 17 00:00:00 2001
From: AnyOldName3 <krizdjali+github@gmail.com>
Date: Thu, 20 Aug 2020 03:01:43 +0100
Subject: [PATCH] const osg::ref_ptf reference should be faster than value as
 constructor and destructor are non-trivial

I played around in GodBolt and got into an argument to determine this. The difference will be immeasurably small, but my curiosity has been satisfied.
---
 components/sceneutil/mwshadowtechnique.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/sceneutil/mwshadowtechnique.cpp b/components/sceneutil/mwshadowtechnique.cpp
index 7a435fe905..dc22d4d806 100644
--- a/components/sceneutil/mwshadowtechnique.cpp
+++ b/components/sceneutil/mwshadowtechnique.cpp
@@ -2988,7 +2988,7 @@ osg::StateSet* MWShadowTechnique::selectStateSetForRenderingShadow(ViewDependent
 
     stateset->setTextureAttributeAndModes(0, _fallbackBaseTexture.get(), osg::StateAttribute::ON);
 
-    for(auto uniform : _uniforms[traversalNumber % 2])
+    for(const auto& uniform : _uniforms[traversalNumber % 2])
     {
         OSG_INFO<<"addUniform("<<uniform->getName()<<")"<<std::endl;
         stateset->addUniform(uniform);