Abstract

An automatic real time physical simulation method is presented through embedding physical attributes into collections of 3D models in Virtual Rapid Scene Building System called VR Scene Studio. In the physical simulation, dynamic equations of the objects with physical attributes are established by Lagrange method. The improved impulse-based paradigm is adopted to gain interactive simulating speed. To improve the performance, optimizing methods are investigated. The real time and physically plausible result can be achieved by the combined the above two methods. The experiment results show that the method is valid and practical.

Highlights

  • A scene rapidly building system, including model generation, textures, and animation and so on, plays an increasingly important role in many applications, from computer games and 3D virtual wandering to urban planning

  • An important feature typically provided by the scene building environment is the physical realism. 3D environments are enriched by the physical module which is responsible for setting and getting physical properties, collision detection, collision response, and multi-body dynamic modeling and computation

  • In this paper we presented the design and implementation of a physical module which can enhance the 3D scene building system with more realism

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Summary

INTRODUCTION

A scene rapidly building system, including model generation, textures, and animation and so on, plays an increasingly important role in many applications, from computer games and 3D virtual wandering to urban planning. Because contact and frictional behavior, dynamic models should be used to gain a realistic virtual scene [1]. As such importance, virtual reality tools often make use of physical simulation through certain physics engines. Liu et al [4] develop a Virtual Reality platform, designing server and client applications, including a rendering engine based on OGRE, and they exhibit an interesting application. Their physical supported attributes are not mentioned.

MECHANISM OF EMBEDDING PHYSICAL
Representation of physical attributes
Mapping physical attributes to collections of 3D shapes
DYNAMIC SIMULATION OF OBJECTS WITH PHYSICS ATTRIBUTES
OPTIMIZATION FOR REAL-TIME PHYSICAL SIMULATION
IMPLEMENTATION AND RESULTS
CONCLUSION

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