Pig. Testing painting with light.

I have been playing around with a technique that I have seen a bit recently where shading is achieved by painting layers of light and ambient occlusion.

Sam Nielson has a great tutorial here:

http://theartcenter.blogspot.com.au/2010/03/sam-nielson-painting-process.html

http://theartcenter.blogspot.com.au/2010/03/sam-nielson-painting-process-part-2.html