Wednesday, October 26, 2011

eye Shader

For the second project we had to paint and texture the eye for my try I used a Blinn Shader and two piece of geometry, one for the eye ball and iris the other for the cornea. But the result was not satisfying the eye was looking milky and life less. At this point I let eye on the side the time to focus on the skin and try to come with another solution. I wanted green or hazels eyes here are some reference for the look I was looking for.


 
 Back to the eye I decide to use what I learned about the skin Shader to the eye. I first remodel the eye making the iris a separated piece of geometry. From Zbrush I created a color scatter map, a normal, a diffuse map a scatter map and opacity map. I end up connecting the same bump map to SSS fast skin material and Mia Material because it gave to the eye a layered effect. I wanted also to make the middle of the transparent so I generated a opacity map



  
 




For the Iris i used a Mia material a passes with just a color map and and a bump map. I also want to  add more deepness to the iris i connected the color map the glossiness as well.












Here is the result