CenterStage Object Class: OffsetSurface Subclass of: SurfaceFromSurface Requires reference to a Surface object The OffsetSurface class lets you generate offset surfaces from any given Surface object. The offset surface is generated by moving the original surface a certain distance long its normal direction. The OffsetSurface class supports all the directives of the SurfaceFromSurface class (other than the Function directive), plus the following: Offset d This specifies the distance to offset the new surface from the original surface.