发明名称 |
Soft shadows in dynamic scenes |
摘要 |
The present soft shadowing technique pre-computes visibility of blockers using a log of a spherical harmonic visibility function. These logs can then be accumulated and exponentiated in real-time to yield the product visibility vector over all the blockers. The product visibility vector is combined with the light intensity and surface reflectance to determine shading at a receiver point in a computer-generated scene.
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申请公布号 |
US2008001947(A1) |
申请公布日期 |
2008.01.03 |
申请号 |
US20060478913 |
申请日期 |
2006.06.30 |
申请人 |
MICROSOFT CORPORATION MICROSOFT PATENT GROUP |
发明人 |
SNYDER JOHN M.;SLOAN PETER-PIKE J.;GUO BAINING;ZHOU KUN;WANG RUI;LIU XINGUO;REN ZHONG;SUN BO |
分类号 |
G06T15/50 |
主分类号 |
G06T15/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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