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January 1, 197064 citationsOpen Access

An algorithm for producing half-tone computer graphics presentations with shadows and movable light sources

JBJ. BouknightKKK.C. Kelley

Key Points

  • To introduce an algorithm capable of rendering half-tone three-dimensional computer graphics featuring movable light sources and realistic shadows.
  • Designed algorithmic procedures to compute intensity variations and project shadows from repositionable light sources.
  • Integrated rendering mechanisms with established graphics capabilities, including geometric transformations, automated windowing, and depth cueing.
  • Enabled the generation of continuous-tone shaded imagery that realistically accounts for occlusions and shadow boundaries from variable lighting directions.
  • Advanced computer graphics displays beyond traditional wireframe representations and static stereoscopic line drawings.

Abstract

In the years since the introduction of SKETCHPAD an increasing number of graphics systems for line drawing have been developed. Software packages are now available to do such things as picture definition, rotation and translation of picture data, and production of animated movies and microfilm. Automatic windowing, three-dimensional figures, depth cueing by intensity, and even stereo line drawing are now feasible and in some cases, available in hardware.

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Cite This Study

Bouknight et al. (1970) studied this question.

synapsesocial.com/papers/6a090bbf73218fa1919d23a4https://doi.org/10.1145/1476936.1476938
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