01-22-2013, 02:19 PM
About your issues with the heads, you are pretty good at painting solid objects such as the car, and seem to try to render the skin the same way. That doesn't work because skin is a lot smoother, due to a effect called "Subsurface Scattering" (or at least that's what it is called in the 3D area, SSS for short), it's basically that some materials, such as skin, are slightly translucent and so some light travels "through" that material and passes out again of it at a different position, resulting in a smoother look.
Also note that every edge potentially darkens it environment which produces smooth shadows too. Think of a knob and light coming from every side at the same time. Now the flat areas are completely illuminated but the areas around the knob are partially occluded, as light from some angles hits there and light from other angles is reflected from the knob. (In the 3D area this is often archived by a effect called Ambient Occlusion (AO for short))
![[Image: hzPjwxT.jpg]](http://i.imgur.com/hzPjwxT.jpg)
Also note that every edge potentially darkens it environment which produces smooth shadows too. Think of a knob and light coming from every side at the same time. Now the flat areas are completely illuminated but the areas around the knob are partially occluded, as light from some angles hits there and light from other angles is reflected from the knob. (In the 3D area this is often archived by a effect called Ambient Occlusion (AO for short))