The Polygon Side node assigns black or white values based on a Polygon object's normal direction. This is useful for assigning different Textures or Materials to different sides of a Polygon object.


Nodegraph Layout


Figure 1: A Polygon Side node controls the Mix texture node and the blending amount of green and red RGB Color nodes

 


Polygon Side Parameters


Figure 2: Diffuse material parameters

 

The result connects to the OctaneRender® material's Diffuse channel, which applies to a twisted polygon.


Polygon Side Example


Figure 3: A twisted surface with a red texture mapped to one side of the polygon and a green texture mapped to the other