Since glitter mixed into opaque paint would lose its shine, if you want walls that shimmer with metallic bits, you'll need to use a glitter glaze topcoat.
If you mix glitter with glue and then put it in the paint, the glue will dry clear on the wall and you will have a wall of GLITTER.
pale roses & glittery walls in vogue living australia
DIY for a sparkly wall. I like this idea for the ceiling for London's room. (Good idea for a kid's bedroom ceiling.