7

GEOMETRIC MODELS AND THEIR EXPLOITATION IN NPR

Whereas in the first few chapters of this book techniques are shown that are independent of the geometry behind a rendition, we will now move on to methods where geometric properties of the objects being portrayed in a rendition are used to determine parameters of the visualization. Geometric models are basically mathematical descriptions of a scene in terms of shape and other properties. This chapter explores how different types of models are constructed and what kind of information can be taken out of the geometric model to be employed in NPR.

In this sense, this chapter continues the line of reasoning from Chapter 6. There, G-buffers are explored as one way of representing three-dimensional ...

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