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    CGF
    2005
    106views more  CGF 2005»
    Hierarchical Penumbra Casting
    14 years 10 days ago
    Hierarchical Penumbra Casting
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    We present a novel algorithm for rendering physically-based soft shadows in complex scenes. Instead of casting shadow rays, we place both the points to be shaded and the samples o...
    Samuli Laine, Timo Aila
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    SIGGRAPH
    1992
    ACM
    117views Computer Graphics» more  SIGGRAPH 1992»
    Computing the antipenumbra of an area light source
    14 years 4 months ago
    Computing the antipenumbra of an area light source
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    We define the antiumbra and the antipenumbra of a convex area light source shining through a sequence of convex areal holes in three dimensions. The antiumbra is the volume from w...
    Seth J. Teller
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