Real-Time KD-Tree Construction on Graphics Hardware

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文件名称：Real-Time KD-Tree Construction on Graphics Hardware
文件大小：1.83MB
文件格式：PDF
更新时间：2016-02-06 10:01:04
kdtree gpu cuda We present an algorithm for constructing kd-trees on GPUs. This algorithm achieves real-time performance by exploiting the GPU’s streaming architecture at all stages of kd-tree construction. Unlike previous parallel kd-tree algorithms, our method builds tree nodes completely in BFS (breadth-first search) order. We also develop a special strategy for large nodes at upper tree levels so as to further exploit the fine-grained parallelism of GPUs. For these nodes, we parallelize the computation over all geometric primitives instead of nodes at each level. Finally, in order to maintain kd-tree quality, we introduce novel schemes for fast evaluation of node split costs.