O'Reilly logo

Hughes/Computer Graphics, 3/E by Steven K. Feiner, Andries van Dam, John F. Hughes, Morgan McGuire, David F. Sklar, James D. Foley, Kurt Akeley

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Chapter 34. Expressive Rendering

34.1. Introduction

In the early days of computer graphics, researchers sought to make any picture that resembled our eyes’ view of a real object; photographs were considered completely realistic, and hence the goal of photorealism emerged. With further thought, one realizes that each photograph is just one possible condensation of the light field arriving at the camera lens; different lens and shutter and exposure settings, film or sensor types, etc., all change the captured image. Nonetheless, the term “photorealism” survives. When researchers began to think about other forms of imagery, they used the term “nonphotorealistic rendering” or NPR to describe it. Stanislaw Ulam said that talking about nonlinear science ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required