A video producer approached me with a request to create video animation for a video.

The technical specifications were as follows:

Using 3D tracking, add an effect to the video - emoticons flying out of the screen.

There are 3 scenes in total:

1. The girl is sitting at the computer and emoticons and icons of various educational applications should fly out of the screen.

2. A girl at work looks at the monitor and emoticons fly out of it - hearts, smiles.

3. A blogger guy on a scooter holds a smartphone, emoticons related to his interests and profession fly out of it.

First of all, I did 3D tracking of all scenes and got key points to which objects can be tied.

Now I should have used a plugin for Adobe After Effects called Stardust. This plugin allows you to generate various particles, as well as use various objects as particles.

I selected a set of emojis and loaded them into a separate layer.

Then came the hardest part - making sure the Stardust plugin could attach the particle emitter to the fiducials. And here is a very complex magic of working with express programming, which I will not describe here, it is boring and complicated.

After I tied the emitter to the dots, all I had to do was set up the particles.

I decided to make 2 layers of particles to make it more interesting. The first layer is the environment - yellow-green glowing particles that add volume to the scene. To do this, I used a noise map and overlaid it on the position of the particles. Here I used 2 noise maps - with a small resolution and a large one. So I had both large bends and small vibrations of the particles.

The next step was to create smiley particles. I installed the emitter on the screen and attached it to the tracking point.

The project is ready. The final result can be viewed here: https://www.youtube.com/watch?v=MnMDlVsLWjs