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Simulation & Gaming, Vol. 37, No. 4,
476-490 (2006)
DOI: 10.1177/1046878106293678
Hardware-accelerated collision detection for 3D virtual reality gaming
Yiyu Cai
Nanyang Technological University, Singapore
Zhaowei Fan
Nanyang Technological University, Singapore
Huagen Wan
Zhejiang University, China
Shuming Gao
Zhejiang University, China
Baifang Lu
Nanyang Technological University, Singapore
Kian Teck Lim
Nanyang Technological University, Singapore
Collision detection in simulation can easily become a bottleneck due to its computationally intensive nature. Recent developments in graphics hardware, however, offer a viable solution for rapid and efficient collision detection. The authors propose a new two-phase technique using the latest graphics hardware. In the broad phase, a scene graph is created to partition objects in a 3D environment for initial collision checking. In the narrow phase, a multiple-viewing volumes method is used to detect interferences between a convex model and a model of arbitrary geometry. First, the convex model is used to define six viewing volumes. The convex and arbitrary models are then rendered respectively within the defined viewing volumes. Finally, results of collision detection can be easily achieved by querying the occlusions between these rendered models in the image space. Compared with other collision detection algorithms, this method produces promising results and is successfully applied in our 3D virtual reality games.
Key Words: 3D environment • 3D VR games • collision detection • graphics hardware • hardware acceleration • viewing volume • virtual reality
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