Problem with a mask and "easy ease"

Agreed +1

Hi maxwithdax,

Thank you for your suggestions

I'm not sure if I fully understand your suggestions, as I have two keyframes added to my mask animation.

My goal is to achieve a smooth animation, where an object comes in fast but it slows down until reaching a full stop.

I'm able to achieve that with "animate > position" method for text objects in AE. In this method, mask is not moving.

But in my scenario I'm using imported from Photoshop layer and I can't see "animate" button for it. So I'm trying to understand why mask is behaving the way it does.

Here's what I'm doing:

1. I'm clicking on a layer and I'm adding a mask to it by using a rectangle tool.

2. The mask is somehow linked to an animated object. It moves together with it (I didn't add any keyframes to the mask)

3. I'm trying to fix mask position by clicking on the layers bounding box twice and:

     a) I'm going back in time to adjust its position, now I'm clicking stopwatch (If I don't the mask will move)

     b) I'm going further in time (when the object behind the mask is supposed to be revealed), I'm adjusting its position

     and adding a keyframe. (I'm doing my best to have a mask in the same position at the start of the animation and at the end)

4. Here's the weird moment. I'm not sure what I'm doing wrong, but sometimes even without applying easy ease I'm getting mask movement, sometimes it's a very small one. I thought that this is related to the mask position being different at the start of animation and at the end, it seems it's not the case.

Even when the mask is not moving, after applying "easy ease" I'm still getting mask movement in the end.

I'm not sure if the information I wrote is useful

Thank you for your help