Cone Tracing for Furry Object Rendering
Cone Tracing for Furry Object Rendering
复制标题
用于毛茸茸物体渲染的锥体追踪
DOI:
10.1109/tvcg.2013.270
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发表时间:
2014-08
影响因子:
5.2
通讯作者:
Zhou Kun
中科院分区:
文献类型:
--
作者:
Qin Hao;Chai Menglei;Hou Qiming;Ren Zhong;Zhou Kun
We present a cone-based ray tracing algorithm for high-quality rendering of furry objects with reflection, refraction and defocus effects. By aggregating many sampling rays in a pixel as a single cone, we significantly reduce the high supersampling rate required by the thin geometry of fur fibers. To reduce the cost of intersecting fur fibers with cones, we construct a bounding volume hierarchy for the fiber geometry to find the fibers potentially intersecting with cones, and use a set of connected ribbons to approximate the projections of these fibers on the image plane. The computational cost of compositing and filtering transparent samples within each cone is effectively reduced by approximating away in-cone variations of shading, opacity and occlusion. The result is a highly efficient ray tracing algorithm for furry objects which is able to render images of quality comparable to those generated by alternative methods, while significantly reducing the rendering time. We demonstrate the rendering quality and performance of our algorithm using several examples and a user study.
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DOI:
10.1109/rt.2008.4634616
发表时间:
2008-09
期刊:
2008 IEEE Symposium on Interactive Ray Tracing
影响因子:
--
作者:
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通讯作者:
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发表时间:
2006-07
期刊:
ACM SIGGRAPH 2006 Papers
影响因子:
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通讯作者:
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发表时间:
1984-01
期刊:
Seminal graphics: pioneering efforts that shaped the field
影响因子:
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通讯作者:
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DOI:
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发表时间:
1979-08
期刊:
Proceedings of the 6th annual conference on Computer graphics and interactive techniques
影响因子:
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作者:
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通讯作者:
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DOI:
10.1145/1201775.882300
发表时间:
2003-07
期刊:
ACM SIGGRAPH 2003 Papers
影响因子:
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作者:
Ulf Assarsson;T. Akenine-Möller
通讯作者:
Ulf Assarsson;T. Akenine-Möller