Computer graphics glossary pdf

Computer graphics studies the manipulation of visual and geometric information using computational techniques. It focuses on the mathematical and computational foundations of image generation and processing rather than purely aesthetic issues. Computer graphics is often differentiated from the field of visualization, although the two fields have many similarities. One of the first displays of computer animation was Futureworld , which included an animation of a human face and hand—produced by Ed Catmull and Fred Parke at the University of Utah.

There are several international conferences and journals where the most significant results in computer graphics are published. The subfield of geometry studies the representation of three-dimensional objects in a discrete digital setting.

Because the appearance of an object depends largely on its exterior, boundary representations are most commonly used. Two dimensional surfaces are a good representation for most objects, though they may be non-manifold. Since surfaces are not finite, discrete digital approximations are used. Polygonal meshes and to a lesser extent subdivision surfaces are by far the most common representation, although point-based representations have become more popular recently see for instance the Symposium on Point-Based Graphics.

Recently, Eulerian surface descriptions i. The subfield of animation studies descriptions for surfaces and other phenomena that move or deform over time. Historically, most work in this field has focused on parametric and is sometimes used for programs that describe local geometric variation.

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