Exaggerated shading for depicting shape and detail

Abstract

In fields ranging from technical illustration to mapmaking, artists have developed distinctive visual styles designed to convey both detail and overall shape as clearly as possible. We investigate a non-photorealistic shading model, inspired by techniques for carto-graphic terrain relief, based on dynamically adjusting the effective light position for different areas of the surface. It reveals detail regardless of surface orientation and, by operating at multiple scales, is designed to convey detail at all frequencies simultaneously.

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Index Terms

• Computing methodologies

  • Artificial intelligence

    • Computer vision

      • Computer vision problems

        • Shape inference

      • Computer vision representations

        • Shape representations

      • Computer vision tasks

  • Computer graphics

    • Image manipulation

      • Texturing

    • Shape modeling

      • Parametric curve and surface models

      • Volumetric models