After exploring a major amount of display ideas for my projection, I have gone with a black room with white painted screen which would reflect my video better than a dark wall.
But I have considered these :
VIOLA and his projection of texture which creates even greater depth of perception.
Ideally and very ambitious display idea. Upside down projections. Submerging the space in projection light and creating a whole set of installations.
Or like Craig Thomas
My Space : like a cinema display, dark walls for better contrast between the painted screen.