Navigating the computer space

This book is about digital three-dimensional (3D) modelling for the theatre; the irony of course is that none of the programs discussed actually produce a genuinely three-dimensional object, but rather they present an illusion of a 3D object, seen from a prescribed point in space. This chapter will briefly outline some of the principles behind 3D modelling, explaining how the computer constructs and shows a model, and how the user may interact with this environment. Many of these aspects will be covered in greater detail in later chapters — this provides an overview.

Each object in a digital scene is constructed by telling the computer where all its key points are in a notional three-dimensional space (we say ...

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