Interesting… well… if you search for: compute overlapping projections for an image projector… i’ll find a lot of info about this… or example this (but only for plane projections ??)
or this academic presentation from 2015 (the paper seesm to be online too) wanting to solve it on unregular surfaces…
also some “profesionals” … (and the direct follow-up and more)
This is actaully getting interesting by the minute. Oh wait… i just added blender
… i even guess there is some solution to simply project a special pattern on any surface (even overlapping) and then re-compute the distortion needed to solve this… but i’m not going into this now…