Various non-limiting embodiments disclosed herein provide methods of making alignment facilities for optical dyes connected to an optical substrate. The combination allows the driver of the vehicle to see through the window assembly, open it, and adjust a rearview mirror allowing operation of the vehicle with the foldable door to be in the closed position. The low level filtering parameters that can be estimated include the spatial neighborhood andor temporal neighborhood size from which pixel candidates are selected, and thresholds used to verify the \u201cgoodness\u201d of the spatially or temporally predicted candidate pixels. The methods are used for pointer variables, but are equally useful to function definitions, function calls, function pointers, indirect function calls, and others. Consumed HF adducts may be regenerated with HF.