Compositing 3-D rendered images

  • Authors:
  • Tom Duff

  • Affiliations:
  • Room 2C-425, AT&T Bell Laboratories, 600 Mountain Avenue, Murray Hill, NJ

  • Venue:
  • SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
  • Year:
  • 1985

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Abstract

The complexity of anti-aliased 3-D rendering systems can be controlled by using a tool-building approach like that of the UNIX™ text-processing tools. Such an approach requires a simple picture representation amenable to anti-aliasing that all rendering programs can produce, a compositing algorithm for that representation and a command language to piece together scenes. This paper advocates a representation that combines Porter and Duff's compositing algebra with a Z-buffer to provide simple anti-aliased 3-D compositing.