You could try nparticals, as its a still shot you could create a large container over your river bed(river bed mesh create passive collider), when you start the animation you would have a large volume of water comming down the river bed. You would need to play with the partical size, liquide simulation and dynamic, then convert to poligon and play with the npartical output mesh properties.........hope that make sence.....dave
ps:change the shader to mr meterial mai water
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Last edited by daverave; 16-05-2011 at 10:10 PM.