Rendering antialiased shadows with depth maps

descriptionPublicationkeyboard_double_arrow_right Article , Conference object 01 Aug 1987Publisher:ACMJournal:Proceedings of the 14th annual conference on Computer graphics and interactive techniques

Authors: William T. Reeves; David Salesin; Robert L. Cook 0001;

doi: 10.1145/37401.37435 , 10.1145/37402.37435

Rendering antialiased shadows with depth maps

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Abstract

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 resemble penumbrae. We describe the new algorithm in detail, demonstrate the effects of its parameters, and analyze its performance.

Related Organizations

Rafael Advanced Defense Systems (Israel)
Israel

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