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Chapter 8. Polygons and Subdivided Surfa... > About Subdivision Surface Modeling

About Subdivision Surface Modeling

Subdivision surface modeling, which combines NURBS and polygons, has two modeling modes, standard and polygon. In polygon mode, you can use all of the polygon tools on the surface. In standard mode, you work primarily with vertices, which act similarly to NURBS control vertices (CVs). But standard mode also has edges and faces, similar to a polygon. Standard mode has the unique capability of moving between display levels—that is, different levels of detail. This allows you to move back and forth between low and high levels of detail on an object (Figure 8.57).

Figure 8.57. This odd creature is called a Huffer. It was designed by Roy Miles and modeled by Andrew Britt using subdivision surfaces. Left, polygon mode; right, standard mode with vertices visible; top, standard mode with no components visible.



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