-
Slow value response, parent to child expression for position
Hi Creative Cow. For the life of me I cannot figure this one out.
I am in no way an expression person so that might be why this is not working out so well. I appreciate any help and thank you for taking your time to do so.I have a null that is moving in X value. It slowly slides across the comp. Next I have some 50 layers parented to the null.
What I’d like to happen is to enter an expression that would allow each layer to react less to the nulls position.
So say layer 1 moves at the nulls exact value.
Layer 2 moves 5% less in value
Layer 3 moves 10% less
Layer 4 20% less
Layer 5 30%Etc etc
Let me know if you need me to explain this differently. I have looked all over and seem to get stuck on delays, which this is not. Thanks!
-
5 Replies
-
If “layer 1” is your master layer, the other layers’ position can be derived with this expression:
mult = .5;
value+(thisComp.layer("layer 1").transform.position-thisComp.layer("layer 1").transform.position.valueAtTime(0))*multwhere you can change the “mult” value for how much the master layer’s motion affects the current layer.
-
Thank you
-
Question regarding negatives. Can it also go on the other side of speed regarding a minus? Can this also be used in a way to slow down?
-
mult = 1 means the same speed as the master layer.
mult = .5 means half the speed
mult = 2 means double the speed
negative numbers would move the layer in the opposite direction
-
Got it. Thank you..
pasting the expression outside the iframe.
mult = .5;
value+(thisComp.layer(“layer 1”).transform.position-thisComp.layer(“layer 1”).transform.position.valueAtTime(0))*mult
Reply to this Discussion! Login or Sign Up