So for the past couple days I have been trying to get the hair coloring to feel correct according to my reference. It wasn't as easy as I was hoping it was gonna be. From the start I knew there was no real way to paint the texture for the hair since it has no UV's. But, I had did some test on my first iteration that gave me some ideas on how to achieve my goal.
What I ended up doing was splitting the hair into sections. I ended up with eight sections. Each section had a ramp texture plugged into the diffuse, secondary specular, and transmission of the V-Ray hair material. The only part that I had a problem with was the back of the hair. I had the look I wanted but I needed it to go the opposite direction.
I did a lot of testing to see if I could get it to go the right direction. I figured out that it was receiving it's information from a V-Ray hair sampler node. The attribute it was using was the distance along strand. Below you can see the nodes in Maya's hypershade.
After trying for a while I decided I needed help. I sought out help from my friends but they weren't sure how to solve the problem either. In the end I decided it was a lost cause and I needed to find another method to achieve what I wanted.
I ended up using the different hair sections that I created to my advantage. I selected specific hair clumps that I wanted to change the color of and assigned them to other hair systems. Doing so, changed the color information to the other hair section I assigned it to. After some time I achieved a look that I was happy with.
I will end this post here just to keep it short. I am posting the final render right after I finish this post though.
Thanks for reading.
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