Slider should only controll the x direction

[Ashish Gupta]

You can easily do this by using a keyword value in the expression.

temp = thisComp.layer("Null 1").effect("Slider Control")("Slider");
[temp, value[1]]

or

u can also assign a static number to y value

x = thisComp.layer("Null 1").effect("Slider Control")("Slider");
y=40;
[x,y];

[Pilsner Kanter]

Thanks for your solutions Ashish. Unfortunately I am not good enoughf with expressions to make
use of the eksamples.

Because what I really wanted as an end result is to be able to use the Split 2 Effect
as a mouth with Lipsync. I want to use the Split 2 Effect to make a talking mouth.

But as an intermediate step (before using a soundfile) I want to use an Expression Slider :

1 Layer with Expression Slider that is used to control the 2 Split options.
The hight of the Mouth – as when you say Ooohhh – you open up the mouth in y direction (i dont need help with this Layer. I can get it to work with just Pickwicking it to the Expression Slider.

Now – on a second Layer I want another Expression Slider that control the With of the mouth – as when you are smiling – the mouth is wide but not high like when you say Ooohhh.

My problem is with the second Layer. I want Point A to move at the same time as Point B – but the points should move either away from each other or nearer each other – depending on whatever I pull the Expression Slider to the left side or to the right side. Like a real mouth would move when talking.

Can this be done with Expressions?

The problem is that at the moment Point A and Point B moves in the same direction when I just Pickwic them to the Expression Slider .

Maybee someone can come up with a better idea to utilize the Split 2 Effect to make a talking mouth.

I know of the other different methods to make mouth Lipsync – but really I want to first see how far I can come with using Expressions and the Split 2 Effect as it give some other nice possibilities.

[Ashish Gupta]

I think This should solve your problem..

Use this for point A :

x= value[0] - thisComp.layer("Null 2").effect("Slider Control")("Slider");
y = value[1];
[x,y]

And this for point B :

x= value[0] + thisComp.layer("Null 2").effect("Slider Control")("Slider");
y = value[1];
[x,y]