1748

Detection of collisions and self-collisions using image-space techniques

Bruno Heidelberger, Matthias Teschner, Markus Gross
Computer Graphics Laboratory, ETH Zurich
In Journal of WSCG, Vol. 12 (2004), pp. 145-152

@article{heidelberger2004detection,

   title={Detection of collisions and self-collisions using image-space techniques},

   author={Heidelberger, B. and Teschner, M. and Gross, M.},

   journal={Journal of WSCG},

   volume={12},

   number={3},

   pages={145–152},

   year={2004},

   publisher={Citeseer}

}

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Image-space techniques have shown to be very efficient for collision detection in dynamic simulation and animation environments. This paper proposes a new image-space technique for efficient collision detection of arbitrarily shaped, water-tight objects. In contrast to existing approaches that do not consider self-collisions, our approach combines the image-space object representation with information on face orientation to overcome this limitation. While image-space techniques are commonly implemented on graphics hardware, software solutions have been neglected so far. In this paper, the performance of two GPU-based implementations and one CPU-based implementation of the proposed collision detection algorithm are compared. Results suggest, that graphics hardware accelerates collision detection in geometrically complex environments, while the CPU-based implementation provides more flexibility and better performance in case of small environments.
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