Octane for 3dsmax

The Polygon Side texture renders white on the front face and black on the backface of a polygon. You can use this for backface culling by putting this texture into the Opacity channel. You can create double-sided materials by placing it into a Mix material (figure 1), or create double-sided textures by placing it into a Mix texture.

Figure 1: Polygon Side used to place materials on to each side of a plane