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Im trying to show a downspout eroding the soil away as an example.

I have tried: A. Using a boolean to deform over time the (ground mesh(obstacle) OR animating shape keys for the (ground mesh(obstacle).

B. I then baked the fluid simulation and it does not follow the animated deformation?

It is driving me nuts, i did get this to work in MODO but I am falling in love with Blender and its community.

Please help me..

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It is quite simple. In the Fluid Obstacle settings, check Export Animated Mesh.

Also, make sure the obstacle is not set as Volume, or concave areas won't work as expected.

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