Not as elegant as something Brendan (Motion-Man) Gibbons would make, but here’s a quick version of a dual split screen template for you.
2548_splitscreen.zip
Put it in your User/Movies/Motion Templates/Effects folder and use it as an Effect.
It uses drop zones for your source images so click on the wells for each and then select the image you want from the Browser and Appply.
It uses a shape as image mask so the same “crop” controls both images and you can move it where you like. You can also have the split running horizontally as well as vertically if you use the yPos control and zero out the xPos control. There are also controls for reframing and resizing the source images.
It’s just a work-in-progress and there’s lots that could be improved, e.g. borders, feathering, image rotate, a way of using the same template to generate a variety of different split numbers, and some fancy rigging, etc. …
Simon Ubsdell
Director/Editor/Writer
http://www.tokyo-uk.com