[Kalleheikki Kannisto]

I would try and construct it with an adjustment layer that is scaled or moved by an expression that is linked to the method you are using to change the value — I assume you using something like “time * X” for the value — with some IF statements that check whether the current number is divisible by powers of ten, with the result of:

any number = blur last digit
divisible by ten = blur last two digits
divisible by hundred = blur three digits
divisible by thousand = blur four digits

(or it could be four separate adjustment layers if the scaling turns out problematic)

then there is the matter of how long you want to have the digit blurred, which will also have to be connected to the countdown (or up) calculation.

Many other methods exist, that’s the first one that comes to mind.

[Kalleheikki Kannisto]

Set wave speed to 1/7 (for one wave loop).

[Kalleheikki Kannisto]

I’m sure there is, but I am equally certain it will be faster to do this with an adjustment layer and a mask since we’re talking about ten numbers.

[Kalleheikki Kannisto]

It’s referring to this option:

[Kalleheikki Kannisto]

Looks like the expression is not the problem. I recreated your composition based on your description and I get no error.

9290_iconoptions.aep.zip

[Kalleheikki Kannisto]

Perhaps because layer numbering starts with 1.

I haven’t tried to duplicate your set-up, but try what happens if you change

NAME=Math.floor(effect("Opacity number")("Slider"));

to

NAME=Math.ceil(effect("Opacity number")("Slider"));

[Kalleheikki Kannisto]

Probably not the neatest code for the purpose, but this does it:

origin_x=150,
origin_y=150;
radius = 50;
x0=value[0]-origin_x;
y0=value[1]-origin_y;
distance0 = Math.sqrt(x0*x0+y0*y0);
distance = Math.min(distance0,radius);
if (distance0>radius){
distance_mult = distance/distance0;
}else{
distance_mult = 1
}

x=origin_x+distance_mult*x0;
y=origin_y+distance_mult*y0;

[x,y]

set origin_x and origin_y to the center point of the circle and radius to the radius of the constraint area.

[Kalleheikki Kannisto]

Add levels adjustment (individual controls) to make the alpha channel fully 0% and 100% by setting white and black points to same value, such as 127.

[Kalleheikki Kannisto]

3D camera track the shot and put set extensions (two 3D planes) with the same cloth (or something else fitting) over the sides where you need to hide the garbage.

That will work as long as your actors don’t go into those areas. If they do… it’s rotoscoping time.

[Kalleheikki Kannisto]

I suspect you are getting Effect(“0”) due to the floor expression and you have no slider named “0”.