The philtrum lies above the lip it's the dip above your mouth also called cupid's bow or raindrop.
My question is what is that cosmetic change suppose to be? It wasn't like that before the Dawnguard update on vampires.
Is this a programming issue meant to be directly located above the lip but didn't adhere correctly.
It seems a lot of people have this on their Skyrim character and there seems to be dislike on this aesthetic change.
Would be nice to get some light shed on this aesthetic change.
Notice that the slit doesn't appear on my female Khajit, only on my Nord, have yet to test on other races.
My Skyrim character before Vampirism:
Female Khajit:
[IMG]http://i.imgur.com/cb0Pt.jpg[/IMG]
[IMG]http://i.imgur.com/nstYA.jpg[/IMG]
Female Nord:
[IMG]http://i.imgur.com/pK4aA.jpg[/IMG]
[IMG]http://i.imgur.com/tJXBD.jpg[/IMG]
My Skyrim character with Vampirism:
Female Khajit:
[IMG]http://i.imgur.com/3SNwo.jpg[/IMG]
[IMG]http://i.imgur.com/WFwZ0.jpg[/IMG]
[IMG]http://i.imgur.com/jeSTM.jpg[/IMG]
Female Nord:
[IMG]http://i.imgur.com/usOHy.jpg[/IMG]
[IMG]http://i.imgur.com/PDbGb.jpg[/IMG]
[IMG]http://i.imgur.com/XzCEN.jpg[/IMG]
[IMG]http://i.imgur.com/Qfaj6.jpg[/IMG]
[IMG]http://i.imgur.com/qOrxt.jpg[/IMG]
Some vampires don't happen to have this slit such as this NPC:
[IMG]http://i.imgur.com/N2SrM.jpg[/IMG]
No slit appears in Vampire Lord transformation, so the idea of the slit incorporating the features of a bat isn't present.
[IMG]http://i.imgur.com/oWtNo.jpg[/IMG]
[IMG]http://i.imgur.com/mG1t9.jpg[/IMG]
[IMG]http://i.imgur.com/UWhth.jpg[/IMG]