Hi all, I'm trying to make a layered shader to control the appearance and disappearance of wrinkles. For example, as set driven keys move the eyebrows, the transparency channel of a texture with forehead wrinkles fades in. The color channel seems to work fine. But the specularity looks like it is doubling with each additional layer in the layered shader - the more layers, the shinier the face becomes. Also, the bump map does not seem to work with the layered shader.
Can anyone give me some advice on a better way to make this work? Thank you.