Behavior3D: an XML-based framework for 3D graphics behavior

  • Authors:

  • Raimund Dachselt;Enrico Rukzio

  • Affiliations:

  • Dresden University of Technology, Dresden, Germany;Dresden University of Technology, Dresden, Germany

  • Venue:
  • Web3D '03 Proceedings of the eighth international conference on 3D Web technology
  • Year:
  • 2003

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Abstract

Success of 3D applications on the Web inherently depends on object behavior and interaction. Current Web3D formats often fall short in supporting behavior modeling. This paper introduces a flexible concept for declaratively modeling 3D object behaviors. Based on Extensible 3D (X3D) a node concept is suggested with object-oriented features such as inheritance, strong typing, and polymorphism. An XML-based language Behavior3DNode serves the interface definition of new nodes. Their implementation is simplified by automated code generation. A novel grammar generation mechanism collects all existing nodes in a dynamic XML Schema. Thus new behavior nodes can be used along with built-in nodes as first class scene graph elements. A rich set of predefined behaviors is proposed, among them Animation and State Machine node collections. The concepts were successfully implemented with VRML97/X3D and integrated into a 3D component approach.