> Intel's driver doesn't like type casting, so the filter wouldn't compile on my laptop > with Intel graphics. > > Now it should work. > > I think that some Linux drivers (especially from intel) are even pickier. So who > knows if it works there without additional modifications. I don't have linux outside > of a VM any more, so I can't test it... > > I'm updating the original post with the updated version too. There shouldn't be any > reason for the older one to exist. > > This version is slightly different. It's slightly better organized (the stuff I > added...), the defaults are more sensible (not as much saturation boost, not quite as > sharp), and of course my laptop likes the fragment shader now.