OpenGL4.0 is supported on
Nividia : starting from GT405 : https://developer.nvidia.com/opengl-driver
ATI : Starting from Radeon HD5000 : http://en.wikipedia.org/wiki/Comparison_of_AMD_graphics_processing_units
Intel : Ivy-Bridge chips, I'd say HD4000 and greater, http://en.wikipedia.org/wiki/List_of_Intel_graphics_processing_units
Good point... we actually don't have an Entity->SetAABB() ?
Make a huge box paint it invisible and make it the emitter parent of it. (have no idea if that will work)