Fast Tree Ambient Occlusion Approximation

J. Teng, Bao Hu, M. Jaeger
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Abstract

We present a fast ambient occlusion approximation algorithm for real-time tree rendering. The main contribution of the proposed method concerns the preprocessing stage of ambient occlusion. The proposed method is a divide- and-conquer calculation framework with limited user intervention. The proposed approach splits the plant geometry into clusters. On each plant primitive, ambiant occlusion approximation is then defined from statistical inner cluster properties and a fast outer cluster occlusion. The implementation achieves flexible ambient occlusion effects with linear complexity.
快速树环境遮挡近似
提出了一种用于实时树木渲染的快速环境遮挡近似算法。该方法的主要贡献在于环境遮挡的预处理阶段。该方法是一种分而治之的计算框架,用户干预有限。该方法将植物几何形状分割成簇。在每个植物原语上,根据统计的内簇属性和快速的外簇遮挡定义环境遮挡近似。该实现实现了具有线性复杂度的灵活的环境遮挡效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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