/// <summary> /// Interns the specified state. /// </summary> /// <param name="state">The state.</param> /// <returns></returns> public static DepthStencilState Intern(DepthStencilState state) { // No checks for interned state. if (state.IsInterned) { return(state); } lock (syncRoot) { DepthStencilState internedPart = depthStencilStateHash.IsInterned(state); if (internedPart == null) { state.Intern(); depthStencilStateHash.Add(state); return(state); } return(internedPart); } }