This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i
yeah, It's the ambient occlusion, fake GI tool. I've been out of it tonight. I was thinking about photon mapping at the time :S Just to clear up for everyone else.
"Subsurface Scattering
All non-metallic materials are translucent to some degree. This means that light scatters inside the material before being either absorbed or leaving the material at a different location. This phenomenon is called subsurface scattering. "
so, it's the scattering effect you'd see in marble, or with skin... *crawls off to sleep*