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Houdini Fx 18 + Cinema 4d + Octane Render
My good old trick with rop_alembic node, this time i've exported white water from a wavetank that suited ti this scene, right in to cinema 4d to add it to octane scatter with a small sphere object and our foam is ready.
rop_alembic node located in whitewater_import node.
Pre simulated cloth included.
Cinema 4d project included.
Have fun.