Hmm, I knew it was implemented in a bunch of plugins or dedicated software like PS. However I am surprised it's not found all over the place by now as part of default apps / preview / OS builtin software / img tag options, etc.
Also none of the implementations I have tried (last time I checked, not up to date on this) were as slick / realtime / interactive as the SIGGRAPH demo.
Also none of the implementations I have tried (last time I checked, not up to date on this) were as slick / realtime / interactive as the SIGGRAPH demo.