Reverses the vertex ordering of the polygon.
polygon Pointer to the polygon.
The argument polygon if successful, and NULL otherwise.
RwReversePolygonFace() modifies the facedness of a single polygon by reversing the order of the vertices in the polygons vertex list.
As this function modifies the geometry of the clump which owns the polygon, the clump is made editable (the rwEDITABLE hint is set) by this function.