dudder The depth problem is the biggest deal breaker.
Yep. It's a real challenge. I discussed this idea earlier on a conversation about attempting split screen:
Mutiny But it's not just about separating them in the frame, you also have to consider depth. If you use a mask to key out one and place them over the other, the effect will break your brain if they're located in the same slice of depth from the lens, or if the one keyed behind the other is actually closer to the lens. Your eyes and your brain will disagree on what's happening and it's deeply unpleasant.
I ran into this on my most recent PMV edit. I did a credits sequence at the end where I used a freeze frame from each scene I included with the title of that scene floating in space near the performer, but I had to position each one manually.
And I realize now I actually got this one wrong. "WET IN" intersects with the windshield and causes that visual glitch.
There's currently no simple plug-and-play fix. One potential option might be placing the text very close to the viewer and making it really small. Or you could try off to the side, or way up high, but those don't seem ideal.
It's definitely something to continue experimenting with. Thanks for sharing your data with us!