Any idea why this specular / phong is flickering?

[Brian Jones]

without seeing the scene file my first guess is that it’s duplicate geometry at that part of the model

[Jay Ingles]

Yep, it was duplicate geometry. I don’t understand why it was flickering but i’m guessing it has to do with the phong and geometry that was close to each other.

Upping the phong didn’t resolve it.

The face/skin plane went all the way up inside the hair. Even though it never protruded through the hair somehow the phong flickered. Erasing the face/skin above the hair line resolved everything.

Thanks for the insight!