Collision detection and audio triggering. Learn how to build a radar that actually works using only four keyframes! This one is a must-see!
This tutorial is no different from the others. It’s not creating a certain effect. Oh no. It’s about solving common and uncommon problems, and about finding solutions to situations that might occur in the future. All to help you work more efficiently by saving huge amounts of time. It’s not about the final visual result, but the way to get there.
So… what is this tutorial really about? We’re going to create a radar that really works! Draw the radar, animate the target over it, and watch how the radar detects the object by itself, marks it on the grid and even makes a beeping sound.
This whole project consists of only four keyframes, and few expressions, that will detect the collision between the target and the scanning line. When the collision occurs, the target will become visible, and a beep sound will be generated.
You must see this one! I hope you’ll like it. Enjoy!
There is an update for this tutorial. If you’re using After Effects CS3 than you should check out the CE PixelSampler tutorial, where you can learn how to use my CustomEffect to detect collisions.