Real-time rendering of trimmed surfaces

  • Authors:
  • Alyn Rockwood;Kurt Heaton;Tom Davis

  • Affiliations:
  • Silicon Graphics Computer Systems, Mountain View, CA;Silicon Graphics Computer Systems, Mountain View, CA;Silicon Graphics Computer Systems, Mountain View, CA

  • Venue:
  • SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
  • Year:
  • 1989

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Abstract

Rational tensor product surfaces, (Bézier, NURBS, Hermite, polynomial, etc.) are rendered in real-time by uniform faceting. The described methods are modular and can be balanced for optimal implementation on different hardware platforms. Discretization anomalies such as angularities, Mach banding, cracking etc. are avoided by tessellating the surface patches and segmenting the trimming curves based on the view.