Using multi-resolution meshes

In this chapter we will look at how to reduce polygons from your mesh. In essence this is the opposite of the previous chapter. Whereas in the previous chapter we were concerned with smoothing the display of a low polygon mesh by using progressive refinement of the mesh, in this chapter we will look at a technique for reducing the polygons in a mesh. The aim is to gradually reject polygons until a target polygon total is achieved. There are many options for polygon reduction and we will look briefly at these alternatives before examining one technique in detail. Michael Garland and Paul S. Heckbert first introduced the one method that I felt gave the best results for low polygon meshes. Their method is known ...

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