Proper water sims for large scale VFX production using things like Naiad, Houdini or RealFlow can take more than 12 hours per frame: http://lesterbanks.com/201

Proper water sims for large scale VFX production using things like Naiad, Houdini or RealFlow can take more than 12 hours per frame: http://lesterbanks.com/2012/03/10-great-examples-of-naiad-in-action/ http://lesterbanks.com/2012/03/10-great-examples-of-naiad-in... It depends on the accuracy of them and the resolution / speed they're going to get rendered at.