2D Animation

Basic Animation
Make shape in AI (Adobe Illustrator)

Open it in AE (Adobe After Effect)
and open a composition to put in your shape, then make it move 

  Basic animation

Masking
Masking is an animation that makes text or object appear using effect in AE (Adobe After Effect).

First open Ae and make a word using Text tools (my work example: Spash).
Then, use Pen tools to highlight the part of words.it will call as Mask 1 after you finish one line. For my, 5 words so there is 5 Mask(Mask1,Mask2, ...etc).

  

Then use Effect - stroke to make effect like below video

Rotoscoping

Rotoscoping is an animation technique that trace over a footage, frame by frame.

I use a cat video from YouTube to do my rotoscoping.

To start,open Photoshop and create a new document with Film & video preset then make sure the size is HDTV 1080p. Change your workplace of photoshop to Motion, or open Windows - Timelines.

Right after that, go to Layers and find the Video Layers, select the new blank video layer. Put in the video.

Then draws on a new black layers as shown belows, and press the right arrow key on keyboard to go next frame.

Draw all the frame, and save. go File > Export > Render Video... and render it.

Final result of my rotoscoping

 

Aliennaped (animation group work) 

Aliennaped