LIVE Fish-Eye Lens

Ever since the tabs in Blender were made dockable, you can throw a 3D viewport into another monitor or projector and use some of the interactive features that are starting to grow. What better that a LIVE tool like RESOLUME but with the functions of Blender? I want to build an educational dome, like a planetarium but with live interactive/sound reactive features.

This could simply be true if Eevee's cameras would also have spherical fish-eye lenses like in Cycles.

Is this a hard feature to program? It would open a world of possibilities. You judge. Peace!