Understanding Anti-Aliasing

[Wright]

CGI-Quality said:

Wright said:
So, is anti-aliasing the responsible for messing up some character's hairs? I don't know if you've experienced this kind of graphical problem, but the borders of certain characters in videogames tend to get messed up, creating a blurry line that does not fit either the hair or the background.

That's potentially an aliasing issue, yep. 

 

There. Is that an anti-aliasing error? Sorry for the pic, couldn't find another that suited better.