Wow, you are always here to reply 🙂
well I thought it would be easier to explain my problem with colors,
but what i really want to do is to bend a beam at different speeds and amounts (positive and negative) in a smooth way. really a job for keyframes, but I have decided to go with expressions on this one.
I only manipulate one layer so tried:
bend=linear(time,3,5,0,40); // bends from 0 to 40 (fast)
bend=linear(time,6,10,40,50); // slow bend
I just tried this but it doesnt really work. It only reacts to the first.