"How hard can it be?" I ask myself before I realise I have to find the location in the world, then transfer that to a different camera perspective, and then test if it exists within some bounds within another cam that moves oh and also one is perspective and the one orthographic.

Still! I think it's mostly working now so I can show a new #CRT7 feature off later! Some tidying up to do, for sure, but it's time for a brain break as the vector maths made me hurt.