A survey of algorithms for construction of optimal Heterogeneous Bounding Volume Hierarchies

نویسندگان

  • Kasper Amstrup Andersen
  • Christian Bay
چکیده

In this paper we describe algorithms for automatic object hierarchy construction. We also describe a set of properties that hierarchies must possess to be considered optimal. Based on knowledge from existing algorithms we develop and evaluate a Branch and Bound construction algorithm that searches for good hierarchies, but due to computation time, not the globally optimal hierarchy. The algorithm is designed to construct hierarchies used for collision detection. This is controlled by a heuristicand cost function. The hierarchy data structure built by the algorithm is the Approximating Hybrid Bounding Volume Hierarchy. It has nodes with varying branching factors, multiple bounding geometry types and approximating geometries in the leaf nodes.

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تاریخ انتشار 2006