public static extern IRndrPixelClbkFuncType IRndrSetPreZCmpClbk(IRndrStruct *Rend, IRndrPixelClbkFuncType PixelClbk);
public static extern void IRndrSetPostZCmpClbk(IRndrStruct *Rend, IRndrPixelClbkFuncType ZPassClbk, IRndrPixelClbkFuncType ZFailClbk);