2749

Interactive collision detection for complex and deformable models using programmable graphics hardware

Wei Chen, Huagen Wan, Hongxin Zhang, Hujun Bao, Qunsheng Peng
State Key Lab of CAD&CG, Zhejiang University, Hangzhou, 310027, China
Proceedings of the ACM symposium on Virtual reality software and technology, VRST ’04

@conference{chen2004interactive,

   title={Interactive collision detection for complex and deformable models using programmable graphics hardware},

   author={Chen, W. and Wan, H. and Zhang, H. and Bao, H. and Peng, Q.},

   booktitle={Proceedings of the ACM symposium on Virtual reality software and technology},

   pages={10–15},

   isbn={1581139071},

   year={2004},

   organization={ACM}

}

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In this paper we present an interactive collision detection algorithm for complex and deformable objects. For two target models, our approach rapidly calculates their region of interests (ROI), which is the overlapping of their axis aligned bounding boxes (AABBs), in CPU. The surfaces of both models inside the ROI are then voxelized using a novel GPU-based real-time voxelization method. The resultant volumes are represented by two 2D textures in video memory. The collision query is efficiently accomplished by comparing these 2D textures in GPU. The algorithm is robust to handle arbitrary shapes, no matter geometric models are convex or concave, closed or open, rigid or deformable. Our preliminary implementation achieves interactive frame rate for complex models with up to one million triangles on commodity desktop PCs.
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