Wet is not equal to wax. Those are different settings for a material, hence why I say they couldn't quite achieve a "wet" look to the skin.
Fair enough.
But it is that simple actually. When we get a project that the director says it's going to entail long fur or hair, everyone cringes. LOL!
Technically, it is much harder to implement long hair than short hair. Period. There is really no debating that. Just because you are seeing the small short hairs doesn't mean that the triangles are any larger with the long hair? In fact, there is more calls to the light loop to shade each vertex in long hair than short hair (which may have at most 3-4 verts compared to 12-18 verts for long hair). You also don't have to worry about self shadowing on short hair. Long hair you do.. occlusion is also a concern.. on stubble, not so much. I could go on and on.. but I think you get the picture.
No you're missing my point about the hair.
Let's put it another way. Let's say you picked a game with a character that had long hair last gen, versus a game this gen that had short hair. The gap is more easily recognizable due to the distance in technical proficiency of each platform. But the illustration then should be clear: it's not
just long hair vs. short hair.
So look at the way the hair looked on last-gen systems (360). That's the only image that really matters for this example.
Now, look at the hair in other high profile games this gen with characters that have impressive hair but is short. Like Drake's, for example, if he's really from the game.
The gap here is absolutely
insane. The level of detail, the projection of the reality of how that hair should move, the individual stranding that can be followed to a point. It's absolutely nuts-o.
The last gen vs. this gen hair is just made to illustrate a larger gap so you can see that there are other factors other than length of hair in play.
So, even though you have "long hair", and Drake has "short hair" it doesn't
necessarily mean that the effect you're achieving is significantly better in terms of detail or technical difficulty. It absolutely can be, of course. And it might be if we actually broke it down. But for my money, having viewed that Nathan Drake face up close and Unity's characters up close, it's not really close. It's really an astonishing accomplishment if that Drake model and U4 looks like this in-game. And if it hit 60fps like ND said they were aiming for (LOL), it'd be basically the most impressive game of all time period but especially relative to the absolute technical disaster Unity was upon release in comparison.