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rolling ball + reflection
I’m animating a circular logo rolling into the shot from the left of screen. Pickwhipping the rotation expression to position neatly creates the appropriate rotation as the logo moves across the screen – great. But when I duplicate this layer, move it down, feather mask it and so on to simulate a reflection, the problem is that the logo is spinning the wrong direction – clockwise – when it should spin counter-clockwise as it is a reflection from the floor. How do I modify the expression so that the object rotates counter-clockwise as it moves from left to right?