Any help on this would be enormously appreciated as I'm completely new to Motion (read: COMPLETELY NEW!) and unfortuantely my ambition outstrips my competence. basically, I have a timelapse video of a mountain clearing from the cloud (as in, the cloud covers the lens and then the mountain appears when the cloud blows away), and I want to look as if the video title is revealed when the cloud blows away. And, er, then I want it to explode before the cloud comes back in.
If anyone can help and point me in the right direction, I'd be hugely grateful as I can't seem to find any tutorials anywhere that help.
1: you can add a mask to the text and animate the mask with keyframes to reveal the text.
2. You can duplicate the time-lapse video. Add a Levels filter to the duplicate layer so the clip becomes a pure black and white clip. Then do a blend mode, luma matte or Add an Image mask...this approach will save you time but doesn't always works, it depends on the contrast in the clip. To see a luma matte in action check out this Creating a Hologram tutorial.