Abstract
The technology of 3d modeling include geometry and behavior modeling method, it is the base of virtual environment construction. Geometry modeling is mature, but the behavior modeling method develops slowly. For the simulation of satellite in virtual space environment, a new geometry and behavior 3D Modeling language (GBML) based on object hierarchical structure is given in this paper. For simulating space object's geometry and behavior, the language define the basic primitive and use the tree structure to represent, manage and rendering the space object's geometry and behavior parameter. At the end, Using the OpenGL, we implement the model manage component (ModelReaderCom) based on GBML. The testing shows that the method is useful and practical which can be wildly used in kinds of virtual environment.
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