Separate texture sheet for anisotropic hair?

Kenolisauce

I’m in the process of breaking my character up into designated texture sheets and I’m wondering whether I need to have the hair on it’s own separate sheet. I know I’ll need to paint a flow map to get the anisotropic shader to work but is there a way to make the flow map/anisotropic effect only apply to the hair and not other items on the same texture sheet?

Mightily appreciate any help!

poopipe

You're better off separating it as a rule.

Different Shader means you're paying for another draw call,  masking comes with a cost and the chances are you're going to want a much higher texel  density for hair than the rest of the body