Scene Optimized Shadow Mapping

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Scene Optimized Shadow Mapping

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Title: Scene Optimized Shadow Mapping
Author: Chong, Hamilton Y.; Gortler, Steven J.

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Citation: Chong, Hamilton Y. and Steven J. Gortler. 2007. Scene Optimized Shadow Mapping. Harvard Computer Science Group Technical Report TR-07-07.
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Abstract: Shadow mapping possesses an aliasing issue that is difficult to control. Recently a number of techniques, beginning with Perspective Shadow Maps have been proposed to choose the best possible 4 by 4 matrix for the light’s projection matrix. These new methods offer no guarantees of optimality, and can perform very poorly for some light configurations. Here we describe a method that chooses the 4 by 4 matrix using an optimization framework. We then describe numerical experimental results comparing our method to some of the previously suggested techniques.
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