Affiliation:
1. Computer Division, Lucasfilm Ltd
Abstract
An algorithm is presented that solves the visible surface problem at each pixel independently. This allows motion blur and depth of field blurring to be integrated into the algorithm. It also allows parallel processing. The algorithm works on large numbers of polygons. An analytic Gaussian filter is used. The filter can be elongated or scaled differently for each polygon to adjust for its speed or distance from the focal plane. This is achieved by shrinking or scaling the polygon prior to solving the hidden surface problem so that blurring is correctly presented when objects obscure each other.
Publisher
Association for Computing Machinery (ACM)
Subject
Computer Graphics and Computer-Aided Design,General Computer Science
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SUTHERLAND IVAN ROBERT SPROULL AND ROBERT SCHUMACKER "A Characterization of Ten Hidden-surface Algorithms " ACM Computing Surveys March 1974. 10.1145/356625.356626
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