Roland Fraedrich Stefan Auer Rüdiger Westermann Efficient High-Quality Volume Rendering of SPH Data. 1533-1540 2010 16 IEEE Trans. Vis. Comput. Graph. 6 http://doi.ieeecomputersociety.org/10.1109/TVCG.2010.148 db/journals/tvcg/tvcg16.html#FraedrichAW10