I wouldn’t really call that “implemented” in Three.js exactly, this appears to be using the exact techniques that Will was describing a couple years ago here. This should be possible in any of the webGL engines, I believe you just need to convert this tutorial over to PlayCanvas. I’ve only skimmed it, but it seems to just use CSS transformations as discussed before with some messing with the Z buffer as well. Someone else also posted a similar project in PlayCanvas here a couple weeks ago, so both of these things together make me believe that this is already possible in PlayCanvas.
I’m currently busy with a gamejam project I started that’s going to go for another week, but I think this is pretty cool and I’d love to give it an attempt myself. If you haven’t figured it out by next week, I’ll probably throw my own hat into the ring.
That being said, I don’t claim to know everything about the subject. Good luck to you!