I'm not into SIGGRAPH papers, though if they implement those, it would explain the short time it takes to make. I am, however, still amazed by the possibilities

I'm not into SIGGRAPH papers, though if they implement those, it would explain the short time it takes to make. I am, however, still amazed by the possibilities of Photoshop: Photoshop shows us how the human brain is capable of finding patterns in nature and copy that realistically. Surely, the latter comment was an overstatement if you're working professionally with Photoshop. But I do think it sooner or later would be some truth in my statement: If Photoshop manage to imitate realism well enough that humans don't see mistakes, then the only thing they would have to work on is speeding up the algorithm. (in that area of Photoshop, of course)