Control the size of one keyframe.

[Matthew Talesfore]

I think I understand…

Start with your “slider” on a ‘Null layer’.

Then I would attach the following expression to the scale of your circle layer.

trans = thisComp.layer(“Null 1”).effect(“Slider Control”)(“Slider”)+transform.scale[1];
[transform.scale[0], trans]

-Matt

[Nikolas Giannis]

It’s not quite what I need.

So, I have animation. Left to right. 1st keyframe: x:0, y:100. 2nd keyframe: x:100, y:100. Animation X-axis only.
I need to bind the second keyframe to the slider control. For exemple, I put a value of 300 in the slider.
Animation should be:
1st keyframe: x:0, y:100. 2nd keyframe: x:300, y:100.
I tried your expression, but I didn’t succeed 🙁

[Dan Ebberts]

Something more like this, I think:

x2 = thisComp.layer(“Null 1”).effect(“Slider Control”)(“Slider”);
x = linear(time,key(1).time,key(2).time,key(1).value[0],x2);
[x,value[1]]

Dan

[Nikolas Giannis]

Yes, this is what I need. Perfectly works. Thank you so much.

[Nikolas Giannis]

Hello again. I still have a few questions. Dan, your expression perfectly works. I need an expression for this scheme:

1st keyframe: x:0, y:100,
2nd keyframe: x:100, y:100,
3rd keyframe: x:100, y:100,
4th keyframe: x:0, y:100.
So, this is fade in and fade out animation. I need to bind the second and third keyframes.

Also, I have a shape that has this animation:
1st keyframe: x:20, y:0,
2nd keyframe: x:20, y:100,
3rd keyframe: x:20, y:100,
4th keyframe: x:100, y:100.
5th keyframe: X:0, y:100.
I need to bind the 3rd and 4th keyframes.
So, please explain to me how to change the expression.

And the last. If a shape has no animation, but I wanna control a size using a slider. How can I do this? Thanks.

[Dan Ebberts]

> I need to bind the second and third keyframes.

bind?

[Nikolas Giannis]

Yes. I need to bind the 2nd and 3rd keyframes to a slider control 🙂 Your expression for the binding of the second keyframe works, but I can’t edit it. Explain to me how to do it, please 🙂

[Dan Ebberts]

That would look like this:

sVal = thisComp.layer(“Null 1”).effect(“Slider Control”)(“Slider”);

if (time < key(2).time)
x = linear(time,key(1).time,key(2).time,key(1).value[0],sVal)
else if (time < key(3).time)
x = sVal
else
x = linear(time,key(3).time,key(4).time,sVal,key(4).value[0]);
[x,value[1]]

Dan

[John Wolf]

Hi,

this is perfect:
x2 = thisComp.layer(“Null 1”).effect(“Slider Control”)(“Slider”);
x = linear(time,key(1).time,key(2).time,key(1).value[0],x2);
[x,value[1]]

but I need use Point Control, can you edit expresions for this? Thank you very much.

John

[Braian Dovidenko]

Hi Dan, you are our guru, thank you.

I wanted to consult you:
I want to be able to modify with a slider controller the size of X and Y separately. But I have an animation made in X.

I hope you have explained me well.

Thanks you!

Braian

x2 = thisComp.layer("Nulo 8").effect("ancho tweet")("Deslizador");
x = linear(time,key(1).time,key(2).time,key(1).value[0],x2);
[x,value[1]]