Kun Zhou Qiming Hou Minmin Gong John Snyder Baining Guo Heung-Yeung Shum Fogshop: Real-Time Design and Rendering of Inhomogeneous, Single-Scattering Media. 116-125 2007 Pacific Conference on Computer Graphics and Applications http://doi.ieeecomputersociety.org/10.1109/PG.2007.48 conf/pg/2007 db/conf/pg/pg2007.html#ZhouHGSGS07