Sdk: Add default update order for Listener, Render and Velocity systems

SDK/src/NDK/Systems/RenderSystem.cpp

@@ -35,7 +35,8 @@ namespace Ndk
 	{
 		ChangeRenderTechnique<Nz::ForwardRenderTechnique>();
 		SetDefaultBackground(Nz::ColorBackground::New());
-		SetUpdateRate(0.f);
+		SetUpdateOrder(100); //< Render last, after every movement is done
+		SetUpdateRate(0.f);  //< We don't want any rate limit
 	}
 
 	/*!
@@ -116,10 +117,8 @@ namespace Ndk
 	* \param elapsedTime Delta time used for the update
 	*/
 
-	void RenderSystem::OnUpdate(float elapsedTime)
+	void RenderSystem::OnUpdate(float /*elapsedTime*/)
 	{
-		NazaraUnused(elapsedTime);
-
 		// Invalidate every renderable if the coordinate system changed
 		if (m_coordinateSystemInvalidated)
 		{