A couple people asked for a tutorial after i posted this on reddit, so wanted to put together a real quick demo of how to create this simple portal effect in sparkAR. You'll need spark, blender (or another 3d software) and an image editor of your choice.

00:44 - Photoshop to prep images
04:29 - Blender to create our occlusion box
13:32 - putting it all together in Spark AR

Sorry for rambling a bit - this is my first time making a tutorial like this and i hope its helpful.

finished project files for this effect:
https://drive.google.com/open?id=178O...

my original reddit post:
https://www.reddit.com/r/witcher/comm...

thanks for watching!