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The team explained:All the simulations were done in Houdini with a lot of custom built toolsets just for this movie/shots, so we could push the boundaries as much as possible. As you can see theres several simulations stack both on top of eachother, and interacting, and in terms of simualtion time one itteration or attempt at a single of those "passes" could easily take 5 or 6 days to simulate and the total amount of simulation data for each shot exceeded 25 TB at times :) Each simulation were split up amongst several physical computers.
Watch The Wave VFX breakdown by gimpVille
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