diff --git a/stepmania/src/ActorFrame.cpp b/stepmania/src/ActorFrame.cpp
index 05bec547a3..fda2925312 100644
--- a/stepmania/src/ActorFrame.cpp
+++ b/stepmania/src/ActorFrame.cpp
@@ -376,6 +376,7 @@ public:
 
 	static int propagate( T* p, lua_State *L )			{ p->SetPropagateCommands( !!IArg(1) ); return 0; }
 	static int fov( T* p, lua_State *L )				{ p->SetFOV( FArg(1) ); return 0; }
+	static int setsize( T* p, lua_State *L )			{ p->SetSize( FArg(1), FArg(2) ); return 0; }
 	static int SetUpdateRate( T* p, lua_State *L )		{ p->SetUpdateRate( FArg(1) ); return 0; }
 	static int SetFOV( T* p, lua_State *L )				{ p->SetFOV( FArg(1) ); return 0; }
 	static int vanishpoint( T* p, lua_State *L )		{ p->SetVanishPoint( FArg(1), FArg(2) ); return 0; }
@@ -395,6 +396,7 @@ public:
 	{
 		ADD_METHOD( propagate );
 		ADD_METHOD( fov );
+		ADD_METHOD( setsize );
 		ADD_METHOD( SetUpdateRate );
 		ADD_METHOD( SetFOV );
 		ADD_METHOD( vanishpoint );
diff --git a/stepmania/src/ActorFrame.h b/stepmania/src/ActorFrame.h
index c5a6c8e41f..4c8eea7d43 100644
--- a/stepmania/src/ActorFrame.h
+++ b/stepmania/src/ActorFrame.h
@@ -54,6 +54,7 @@ public:
 
 	void SetUpdateRate( float fUpdateRate ) { m_fUpdateRate = fUpdateRate; }
 	void SetFOV( float fFOV ) { m_fFOV = fFOV; }
+	void SetSize( float fX, float fY ) { m_size.x = fX; m_size.y = fY; }
 	void SetVanishPoint( float fX, float fY) { m_fVanishX = fX; m_fVanishY = fY; }
 
 	virtual void SetPropagateCommands( bool b );