[Josh Holdens]

Well I have given it some thought, and hopefully this will put what I’m trying to do in the right perspective. Otherwise as many have said, “If YOU say that it’s tricky then….” So… Let’s say that I have Layer A moving and its speed is from 0 – 500. What I want initially is that when Layer A’s speed reaches 175, Layer A’s opacity begins changing from 0 – 100%. Now that Layer A has come to a stop I want to animate it again. Layer A is moving and its speed is 0 – 500 but this time when Layer A reaches a speed of 175 I want Layer A’s opacity to go from the now 100 – 0%. I hope this makes sense, if not “Yikes”. Key-framing it is. Thanks for your help and patience.

[Josh Holdens]

Many thanks for the response. OK here it goes… I am trying to animate my layers from one point to another at the same time calculate the layers speed so that when my layer reaches a certain point the opacity is affected. So the set-up would be layer leaves point A-opacity is zero until A reaches a certain speed. Once that speed is reached the opacity goes up to 100 as layer A stops. Then layer A moves to next point and opacity moves to zero after a certain speed is reached. Thanks for all your help with this!

[Josh Holdens]

I still haven’t had much luck figuring this out. The closest thing that I can describe as to what I’m trying to achieve is a “shooting star” type of effect. I have a few layers that I’m attempting to control and having this work would be great. Otherwise I have hit a brick wall. Is this possible or is there some reference out there that I’ve overlooked….


x = transform.position.speed;
If (x>1500){
0
}else{
linear(x,0,1499,100,0)
}

[Josh Holdens]

Thanks A ton! great success with this. I guess I was over complicating it. Again Thanks and thanks again!

[Josh Holdens]

Genius! superb, this is so awesome and works great.

[Josh Holdens]

As always Many Many Thanks! I’m going to have a bit of fun trying to understand how these particular expressions work. Again THANKS!!!, and off to expression land I go!

[Josh Holdens]

Thanks a ton! I’m very excited about learning and mastering expressions. This is a great help. Awesome!

[Josh Holdens]

this worked great!!! Thanks a ton. I get how it works after adjusting the values, but why is another question entirely. for instance why wiggle(freq,1). How I usually think about the second value is in pixels. so to me this translates to wiggle(1 time per second, 1 pixel) -(subtract) the original value. Finally we take value + [w[0]*thisComp.width,w[1]*thisComp.height] and multiply it by .4. so I’m a little lost as to how/why you chose the #1 in the wiggle expression and multiplied the (value +) section by .4; I really do appreciate your help and expertise.

[Josh Holdens]

thanks I’ll give this a shot… I’m currently walking through your bounce and overshoot expression. It’s pretty intense at the moment but it has gotten me this far. Thank you for all your help!!!!

[Josh Holdens]

Great big thanks, I was completely stomped.