Ok...now what..
I wish to know the proper setup and how to use Arena to accomplish this. ; )
I´ve seen some old setups using mirrors but doesn´t seem the way it goes here:
you dont have many choices.
its going to be security mirror or
use a planetarium media server
or spend a very long time doing the line up in whatever app you chose.
but the blends and joins you will find next to impossible.
otherwise just have 3 or 4 of the same image
you can mask the lenses with masking tape.
I've tried using Arena to accomplish a full dome install. it doesn't work. the edge blending is the problem, Arena cannot handle the compound curves, and multiple overlaps that a 4 projector install in a dome environment requires.
I think that IRmapio has plans of implementing this in the future, as with the latest release there is a default quad radial preset, but still the edge blending can't handle the compound curved surfaces.
I think the biggest issue is VJ software developers access to a proper full dome theater.