Changing Behaviors over the Life of the Particles

You can not only apply behaviors to particles, but also modify the behaviors so that they change over the life of the particles. In this exercise, you'll modify the scale and color of a particle system over the life of the particles. The last project in this lesson is called Tree Growth, and it uses many of the skills that you've learned so far to create a particle system that changes over the life of the particles.

The goal in this project is to show the life cycle of the leaves on a tree. First, you'll turn a leaf object into 100 leaves; then you'll apply behaviors so that the leaves grow, change color, and then fall off the tree. Let's start by opening the project.