I hope I can explain what I want to achieve. Here are two intersected objects:
You assume in the image that the blue plane is water and the red semisphere floats half submerged.
Then without using physics nor fluid simulation,
I want that the blue part of the inner of the semisphere “automatically” disappears when the blue plane and semisphere are intersected, looking like this:
I want to make a simple animation frame by frame. But I do not want to have to remove that blue intersection by hand in each frame.
Is it possible to do this automatically on a simple way?
I have tried with Boolean modifier, but I can not imagine how to do it.