Gamasutra features a skin shader for Unity with the source code: http://www.gamasutra.com/view/news/39446/InDepth_Skin_Shading_In_Unity3D.php
Gamasutra features a skin shader for Unity with the source code: http://www.gamasutra.com/view/news/39446/InDepth_Skin_Shading_In_Unity3D.php