I thought SR 3 fixed the "bluish" tint you get in skin due to SSS by introducing "scatter group" numbers. To fix the blue around the mouth, you set the face to one group number and the parts inside the mouth to another. This seemed to work, but I've noticed something strange. When the arm, for example, touches the chest, you get a strange blue hue to the skin in the crease as I show here in the figure (sorry it's not a better render). It's subtle, but I'm pretty sure it's there. I fixed this in the second image by setting the arm and chest to different scatter groups. Simple enough, but when the hands clasp like to pray, I see this effect too, or if the legs cross one another. For V4, both hands share the same material definition so they can't have different scatter group numbers. You would have to have the option of RHS and LHS materials.
Has anyone else noticed this? Maybe I'm just late to the dance, but I don't think I've seen a fix for this posted here.
Thanks