Open Adobe After Effects
Create a new blank project
Select the rectangle tool at the top of the screen and then draw a black box as your first layer
Select the layer then choose under "Effect, simulation, CC particle world"
On the Effect Controls:
Try out a few different particle types, hit the space bar to see the simulation.
Try adjusting the physics
Next:
Select "Textured quad polygon" beside particle type
Add a second layer to your project of an image of your choice.
Click the eyeball icon on your new layer to make it invisible
Select your original shape layer and effect controls
Click "texture" and click the dropdown menu beside "Texture Layer" and select the image you inserted.
Click the space bar to run the simulation.
Adjust the properties to make your simulation unique.
Create a new project with a more interesting background and objects to add a particle simulation to.
When finished
Select Export - Render
Click beside "Output To" and choose your OneDrive