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Advanced Graphics Programming Using OpenGL by David Blythe, Tom McReynolds

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CHAPTER 19

Illustration and Artistic Techniques

In applications such as scientific visualization and technical illustration, photorealism detracts from rather than enhances the information in the rendered image. Applications such as cartography and CAD benefit from the use of hidden surface elimination and 3D illumination and shading techniques, but the goal of increased insight from the generated images suggests some different processing compared to those used to achieve photorealism.

Strict use of photorealistic models and techniques also hampers applications striving to provide greater artistic freedom in creating images. Examples of such applications including digital image enhancement, painting programs, and cartoon-rendering applications. ...

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