Dave Morrow takes a look at using Trapcode particular to create a great reveal effect based on particles that can be used and reused on any image or any other project.
In this tutorial we will be creating a customizable particle reveal using Trapcode Particular
Using multiple instances of TrapCode Particular as layer emitters as well as Luma Mattes, setting the particles to inherit the color based on the layer, Dave sets up a great, almost bubble-like reveal effect, and then shows how to swap out the images and have the effects automatically update.
Check out the tutorial for Creating a Customizable Particle Reveal Effect Using Trapcode Particular and After Effects here.