While the green/blue screen feature is fairly new to iMovie on iPad, it has been a part of iMovie on Mac for some time. However, it is the approach to this simple green screen project that seems new. Often we film in front of a stationary green background for effect. But in the Wormhole Challenge, you manipulate the green screen to reveal a pieces of a background a little at a time.
There are so many adaptations for this simple idea, but we used it as a simple ice breaker activity while working with groups of teachers in back-to-school PD. Here are the steps we used to accomplish the goal:
1) Use the built-in camera to record a video of your partner manipulating the green or blue play doh. Change sizes, placement, and even position further and closer to the iPad camera.
2) Open a new blank iMovie video project.
3) FIRST, add your background image (or video). In other words, what you plan to reveal.
4) SECOND, add your video of the hands manipulating the green blob.
- if using iPad:
With your playhead at the beginning of your project, use the + to add the Video from your 'Recently Added' album. Once selected, use the ellipsis to select "Green/Blue Screen" from the options. Finally, don't forget to tap on the part of the video in the viewer that you want iMovie to "key" out (green, blue, or some other color you want to become invisible!).
- if using Mac:
Drag your green screen video clip just ABOVE your background clip in your timeline. Then, click the Video Overlay settings button and change the dropdown menu from 'Cutaway' to 'Green/Blue Screen'. That's it! iMovie will automatically find the green or blue color here. (You can, however, do some adjusting and editing if need be.)
Amazingly, that is all there is to it! No need for additional software, apps, or extensive editing experience. Now, what will you magically reveal in your next Wormhole Challenge project?
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