Missed a constification.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1450 dfc29bdd-3216-0410-991c-e03cc46cb475

source/Irrlicht/CVolumeLightSceneNode.cpp

@@ -47,7 +47,7 @@ CVolumeLightSceneNode::~CVolumeLightSceneNode()
 }
 
 
-void CVolumeLightSceneNode::addToBuffer(video::S3DVertex v)
+void CVolumeLightSceneNode::addToBuffer(const video::S3DVertex& v)
 {
 	const s32 tnidx = Buffer->Vertices.linear_reverse_search(v);
 	const bool alreadyIn = (tnidx != -1);

source/Irrlicht/CVolumeLightSceneNode.h

@@ -72,7 +72,7 @@ namespace scene
 		virtual video::SColor getTailColour () const { return TailColour; }
 
 	private:
-		void addToBuffer(video::S3DVertex v);
+		void addToBuffer(const video::S3DVertex& v);
 		void constructLight();
 
 		SMeshBuffer* Buffer;