Hi. I need an expression to make the following movement.
I have in the scene a 3D null object named "control". Also, I have an adjustment layer with 4 marks named, "x1", "x2", "x3" and "x4". What I need is an expression to control the null movement this way:
When the indicator pass over the mark "x1" the null will move from xyz position 1 to xyz position 2. The time duration of this movement will be the distance between mark "x1" and "x2" in the timeline.
Then the null will keep the position 2 until the indicator pass over the mark "x3" which will make it move from the position 2 to the position 1 again. The duration of this movement has to be controlled by the distance between "x3" and "x4" marks. All the movements have to be smooth like easy in and easy out.