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Real-Time Screen-Space Scattering in Homogeneous Environments

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3 Author(s)

The proposed screen-space algorithm approximates light scattering in homogeneous participating environments, such as water. Instead of simulating full global illumination, this method models scattering by a physically based point spread function. A discrete hierarchical convolution in a texture MIP map makes the algorithm efficient, and a custom anisotropic incremental filter prevents illumination leaking.

Published in:

Computer Graphics and Applications, IEEE  (Volume:33 ,  Issue: 3 )