how to get elastic effect or slight shaky effect when sidebar fully open? like in this tutorial.

[myfemmepod]

like in this tutorial

I am quite 20 days new to after effect. I have been trying myself to learn this jelly opening sidebar but i am unable to get the sleek finishing. Any suggestion would be welcome.

like -> i have reached the level to learn how jelly effect opening sidebar work but not satisfied with the finishing.

[Szalam]

You could do that by animating a mask path (likely what this person did).

[myfemmepod]

I have made this but i am unable to get the shaky effect.

https://drive.google.com/open?id=1WrDcZyXORQ5dyjmigaJb_uMHMPgi5Fvr

[Rick Gerard]

It takes a lot of time to learn how to animate realistic squash and stretch. Digging into the graph editor and watching some good tutorials is the first place to start. Type Graph Editor in the Search Help field at the top right corner of AE and start with the User Guide. Those kinds of dynamic animations are not automatic or easy to do until you have a lot of practice.

[Szalam]

I just had a thought of a more automatic way to do something like this. You could have a bunch of nulls, tie them to each other via some sort of expressions with springy-ness, and then use them to define mask points.

Newton is a third-party solution for creating dynamics that would also do well at making the nulls move in a springy way.

[Mike_Abbott · Accepted solution]

As Rick and Szalam say - there is no 'easy button' for things like this. To keyframe it manually takes know-how, time and an understanding of the principles of animation.

One tip that might help is to draw your mask using Rotobezier curves - rather than conventional Bezier cuves with handles, and use the vertex tension control as you animate the points. Rotobezier will calculate the point (vertex) curvature automatically and will probably help you get a smoother curve and animation. Search the help for 'Rotobezier' to get started.

Adobe After Effects Learn & Support

Here's a quick and dirty example - to get the 'bounce' set a keyframe (kf) so your points overshoot the intended position, anther kf for the points undershooting the position and a final kf for the intended position- so the timeline looks something like this: