Hi,
as of a few weeks ago you can get the bodes you need from this page
This page explains how the light affects the hair
In essence, use the light vector to increase/decrease the scatter value, which should provide a more realistic look since that’s what light does when it comes to contact with hair.
probably using wpo because you want a per pixel effect based on the surrounding geometry.
I’m thinking offset with the fresnel mask like the example shows for other things, so that edges are lighter.
You have to play with it and see what you can come up with.
the light vector should be avaliable to the pixel shader as i was waiting on .26 to get it on the vertex shader as well…