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Reeves et al., 1987 - Google Patents

Rendering antialiased shadows with depth maps

Reeves et al., 1987

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Document ID
11473204224777880134
Author
Reeves W
Salesin D
Cook R
Publication year
Publication venue
Proceedings of the 14th annual conference on Computer graphics and interactive techniques

External Links

Snippet

We present a solution to the aliasing problem for shadow algorithms that use depth maps. The solution is based on a new filtering technique called percentage closer filtering. In addition to antialiasing, the improved algorithm provides soft shadow boundaries that …
Continue reading at dl.acm.org (PDF) (other versions)

Classifications

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    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/50—Lighting effects
    • G06T15/60—Shadow generation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/50—Lighting effects
    • G06T15/506—Illumination models
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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    • G06T15/50—Lighting effects
    • G06T15/80—Shading
    • G06T15/83—Phong shading
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING; COUNTING
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    • G06T15/503—Blending, e.g. for anti-aliasing
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