Hi,
From what I have understood, EXT_shader_image_load_store support has been made available in a recent 10.10 hotfix.
Will this extension work with Radeon HD 4xxx hardware, or even older hardware?
See this thread for more details on my question:
http://www.opengl.org/discussion_boards/ubbthreads.php?ubb=showflat&Number=286248#Post286248
Cheers,
Fred