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Article Dans Une Revue International Journal of Virtual Reality Année : 2015

SCENE GRAPH FOR DYNAMIC VIRTUAL ENVIRONMENT: SPANGRAPH

Résumé

The VRML (Virtual Reality Modeling Language) file format is a popular file format for describing a graphical scene: object shapes, appearance properties, animation, and interactions. However, the format does not provide any mechanism for describing the order of objects’ appearances or their changes over time. Instead, an interface to Java is offered for controlling the temporal relationships between objects in the scene. The use of Java makes it difficult for a person with his programming skill to author a dynamic virtual environment. In this paper we attach a span and an age to each object and their hierarchical and temporal relations are expressed in a new data structure, called a span graph (SpanGraph). An object in the span graph, when alive, grows its age and performs associated actions according to its age during the extent of the time span. Furthermore, the object may have child objects whose spans are sub-extents of the parent span. In this paper, we demonstrate uses of the SpanGraph in virtual studio and virtual engineering design applications.

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Dates et versions

hal-01530653 , version 1 (31-05-2017)

Identifiants

  • HAL Id : hal-01530653 , version 1

Citer

Hyun Suk Kim, Heedong Ko, Kunwoo Lee, Lae Hyun Kim, Jaehong Ahn, et al.. SCENE GRAPH FOR DYNAMIC VIRTUAL ENVIRONMENT: SPANGRAPH. International Journal of Virtual Reality, 2015, 04 (2), pp.23-36. ⟨hal-01530653⟩

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