Efficient image-based methods for rendering soft shadows

@inproceedings{Agrawala2000EfficientIM,
  title={Efficient image-based methods for rendering soft shadows},
  author={Maneesh Agrawala and Ravi Ramamoorthi and Alan Heirich and Laurent Moll},
  booktitle={SIGGRAPH},
  year={2000}
}
We present two efficient imaged-based approaches for computation and display of high-quality soft shadows from area light sources. Our methods are related to shadow maps and provide the associated benefits. The computation time and memory requirements for adding soft shadows to an image depend on image size and the number of lights, not geometric scene complexity. We also show that because area light sources are localized in space, soft shadow computations are particularly well suited to imaged… CONTINUE READING
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