Hello, world!

I’ve created a simple landing page on Wix which can be reached by clicking on a link in the description below a video on my youtube channel.

This is the landing page:

https://nproductionht.wixsite.com/nproduction

On this landing page, I give the possibility to anyone to download a useful file for free.

In order to “unlock” the download, a…

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Hi Everybody,

I’d like to find an expression for resetting a property value to an exact value when hitting the Reset button.

Steps:

– Create a shape layer and a null object.

– Put a Slider Control on the null object.

– Link the Scale transform property of the Shape Layer to the Slider Control of the null object.

Now you can control the size of the Shape…

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I’m literally in shock right now.

Unbelievable.

I’ve just tried your expression and it works like magic

I couldn’t be happier with the result and I still can’t thank you enough for everything you’ve done.

I hope you had fun trying to fix this troubles and always finding the right solution.

Well, you are great Andrei, thank you for taking the time t…

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Just the fact that you said that this is certainly doable it’s already something for me.

I hope you will find a bit of time to dive into this project again and finish this set up.

I’m really curious to know what will be your unusual and smart solution.

I have total respect for you and I know bills come first so thanks a lot for your precious time.

So,…

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Hey Andrei,

do you think is there any chance to do this last step?

I think that it would be really interesting to have all those abilities on just one path.

Let me know what you think, I would be really happy to know your opinion

Oh I forgot to say that I would also like to be able to choose from which point the path starts to unbild itself.

So now the controller are:

1 – A slider control which drives the starting point of the path

2 – A slider control which drives the ending point

3 – A checkbox control which reverse the direction of the path

NEW ONE:

4 – A new checkbox which…

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Yes, that’s exactly the behavior I want.

Checkbox OFF = Path building

Checkbox ON = Path unbilding

Does that makes sense?

Thanks

The Path unbilding is an option.

I can enable it or disable it via the Checkbox Control.

It doesn’t have to start unbuilding after the whole path is loaded.

It should just keep the position and revert it’s building direction which means unbulding the path.

Watch this short video, I hope it helps you to better understand what I…

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Hey Andrei,

I’d love to do an update to the project, could you please help me further more?

I wanted the path to be simultaneously a loading bar and a countdown bar.

To do so I copied and paste the same expression of the “End” on the “Start” property of the Trim Path.

Then I created a Checkbox Controller on the Null object controller, which works as a…

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Hey Andrei,

I’m trying to apply your expression on the “Start” property of the Trim Path.

function arrIncludes(arr, element) {
    for (var i = 0; i < arr.length; i++) {
        if (element == arr[i]) return true
    }
    return false;
}
L = thisComp.width;
l = thisComp.height;
percentL = 50 * L / (L + l);
percentl = 50 * l / (L + l);
beginPoint =…

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Thank you so much,

the expression it’s working and you are always very helpful

Hi Stephen,

Thanks for your answer !!

I put the first part of the expression on the “End” property of the Trim Path but I can’ t figure out where to put the boolean not operator: “!”

 if (! chkbx.value){

You wrote “For the other layer ” but the expressions are on the same layer not on two different layers.

Am I doing something wrong?

Thanks

Hey Brendon,

Thank you so much for providing me this expression.

It works perfectly

Hi Everybody,

Is there an expression to Enable/Disable an expression with a Checkbox Control?

So here is my situation:

I have an expression on the “End” property of a Trim Path and the same expression on the “Start” property of the same Trim Path.

I would like to know if there’s a way to turn on the expression of the “End” property while disabling the…

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Hey Andrei,

I have another question.

Is there a way to keep the Anchor Point of the Shape Layer always centered into the composition?

I’ve tried to add this expression to the anchor point but it’s not working properly:

R = sourceRectAtTime();

[R.left + R.width/2,R.top + R.height/2]

I think this is not the right solution.

Is there a way to add something…

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I AM ASTONISHED !!!

It’s all working perfectly now but I have another question…How can I repay you?

Magic !!!

Thank you so much

THIS IS AWESOME !!!

Now everything is working perfectly =)

I’m so sorry I’ve described the order of the corners wrongfully in the post.

All the issues are now solved and so I have my last question:

Is it possible to add a Checkbox Control to the expression able to invert the Path direction?

I mean:

Checkbox ON = The Path’s direction goes anticlockwise

Ch…

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Hey Andrei,

Thanks for your response, sorry for splitting the discussion in two parts, my fault.

Let’s try to stay on this one:

Self – Resize a Bezier Path Shape Layer to Comp size and more

Thanks a bunch

SUPER !!!

This expression works like a charm !!!

I’ve seen that you also answered me on my other discussion:

I need help with this Expression: linear(time, 0, thisComp.duration, 0, 100);

So what I want to tell you is that the expressions you provided me are working well with some adjustments.

I created a video to show…

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Andrei, thanks again !!

I understood why the expression was not working for me.

My project setting for the Expressions was set to Legacy ExtendScript not to JavaScript.

Is there a way to turn this expression working in Legacy ExtendScript?

In Legacy ExtendScript the expression it’s working within the range of 1-3.

I also had to reorder the numbers of…

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Hi Stephen,

Thanks for your kind help !!!

I’ve tried one of the expression you provided me and I think I’m doing something wrong.

Here is a short video to show you what I did:

Could you please tell me what is wrong?

I need to tell you another thing:

This is part of a project where for necessity, the Shape Layer…

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Hi Everyone,

I am animating the Stroke of a Rectangular Shape Layer applying this expression to the “End” property of a Trim Path:

linear(time, 0, thisComp.duration, 0, 100);

The expression makes the stroke automatically animating itself based on the duration of the composition.

It works flawlessly but I have a question:

is it possible to animate just…

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That’s so true, I used to go with the double-click but then something happened in my life and now I’m going this way

Thanks again Andrei !!

</div>

Andrei Popa WOW!!!

Thank you so much for your help.

The expression you provided me works very nicely.

Now if I resize the composition, the Rectangle resizes itself and most important, the starting point of the path can be easily chosen via the slider control !

Amazing!!!

Can I ask you another question?

The slider control now works within the range which…

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Hey Folks,

I’m trying to create a frame that automatically adjusts its size to the size of any composition.

I’ve already opened a discussion and I collect enough informations to create a new complete thread I hope.

This is the other…

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At this point I’m pretty lost.

I keyframed the Rectangular Shape Layer setting the first Vertex in 4 different frames.

After that I put this expression into the Path property:

n = Math.round(thisComp.layer(“NullObject_Name”).effect(“SliderControl_Name”)(“Slider”));

n = clamp(n,1,numKeys)

valueAtTime(key(n).time);

I created a null object with a slid…

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Thanks for your answer.

This is pretty confusing to me.

The issue happens when the Start or the End value is less than 50%.

At 49 % the Shape Path starts to Expand.

Something more is needed.

Something able to constrains the shape size to the comp size even if the End property value goes down to 0% or up to 100 % for the Start property.

Any idea?

Hey Flip,

did Dan’s expression worked properly for you?

So that means that I’m doing something wrong.

I’ve tried to make a brand new composition with a brand new rectangular shape layer and it seems to work well now until I add a Trim Path to animate the End and the Start of the Path.

When the End’s parameter goest to 0 % an error occur and this…

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Hi Dan,

Thanks for your quick response!!

Unfortunately this solution is not working properly for me.

Once I change the composition size, the mask size remains unchanged and always centered.

If I apply the same expression on a bezier path of a shape layer, the expression it’s not working at all.

So I have another idea but I’m stuck again.

I’ve created…

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Hi Everybody,

I’m experimenting with self-resizing expressions in AfterEffects but I can’t find a way to automatically re-scale a Shape Layer converted to Bezier Path to Composition size.

Here the steps:

1 – Create a Comp 400 x 200 px

2 – Create a Rectangular Shape Layer with a Stroke

3 – Convert the Rectangle to a Bezier Path

After this step I wanted…

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I’m trying to find a way to animate the stroke of a shape layer based on the time duration’s property of a custom composition.

Probably there’s already a script out there but I can’t find it so I’m wondering if there’s a simple way to do it maybe via expressions.

I’d like to:

1 – Import any kind of footage of any length into After Effects

2 – Create a…

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