Potentially an impossible task, but feels like it should be able to be done. Is there a way to cast a shadow onto a transparent shadowcatcher, than export the .glb file so that when I use the image in swift/ios the 3d model's shadow is attached?
what I ended up doing to get around this, it's probably not the best approach, and feels a bit like cheating — I just duplicated the bottom layer of the image and painted it black, and exported it so that I could have a static shadow with no light necessary. It looks like a shadow at the very least. Appreciate all the help!