Rendering intricately-shaped objects using view-dependent microfacets

Shuntaro Yamazaki, Ryusuke Sagawa, Hiroshi Kawasaki, Katsushi Ikeuchi, Masao Sakauchi

Research output: Contribution to journalArticle

Abstract

When a real object is displayed in a virtual space by using computer graphics, the general approach is to draw the image on the basis of the geometrical information and the texture information about the object. However, when the object has a complex and fine structure, it is difficult to draw the object image precisely without a decrease in realism, since the geometrical model cannot be determined precisely. To deal with this problem, this paper proposes the following method. Small faces (microfacets) are generated according to the drawing viewpoint to form layers which are always perpendicular to the view line. Then view-dependent texture mapping is applied to each microfacet and drawing with greater realism is achieved. These processes can be implemented efficiently on an ordinary PC by using programmable graphic hardware. It is shown that view-dependent detail-level control can be realized in this method, so that complicated objects and scenes can be drawn at interactive speed.

Original languageEnglish
Pages (from-to)44-53
Number of pages10
JournalSystems and Computers in Japan
Volume38
Issue number8
DOIs
Publication statusPublished - Jul 1 2007
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Theoretical Computer Science
  • Information Systems
  • Hardware and Architecture
  • Computational Theory and Mathematics

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