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July 20, 1977Open Access

Shadow algorithms for computer graphics

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Authors

FCFranklin C. CrowApple (Israel)

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Implication

Methodological review evaluates three shadow algorithm approaches in computer graphics, suggesting shadow volumes provide the most appealing characteristics.

Key Points

  • Categorize existing shadow generation algorithms into distinct conceptual classes and evaluate their performance and characteristics for computer-synthesized imagery.
  • Classified shadow algorithms into three approaches: computation during scanout, object surface subdivision prior to hidden-surface removal, and inclusion of shadow volumes in object data.
  • Outlined implementations and theoretical frameworks for each of the three identified algorithmic classes.
  • Delineated three fundamentally different rendering workflows for incorporating realistic shadows into synthetic scenes.
  • Identified the shadow volume representation as possessing the most appealing qualitative and computational characteristics among evaluated approaches.

Cite This Study

Franklin C. Crow (1977) studied this question.

synapsesocial.com/papers/6a09eddfb0d552aa8b45f6f1https://doi.org/10.1145/563858.563901
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