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Rendering for Beginners by Saty Raghavachary

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6

Camera, Output

A camera is an essential component of a renderer since it enables image synthesis from custom viewpoints. In this chapter we examine the basics of CG cameras and image formation.

6.1 Proxy Viewpoints

Cameras act as substitute eyes, showing us images that we cannot see with our own eyes. Our visual culture is defined by images gathered from ubiquitous cameras. Cameras are used in a variety of fields and endeavors including news gathering, medicine, surveillance, industrial process monitoring, basic scientific research, advertising, interpersonal communications and of course, entertainment. The digital revolution is a big enabler of the plethora of images that surround us, by making still as well as video cameras smaller, cheaper ...

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