Have a look into implementing a glazed shader, it has some super nice results; it can give some surprisingly nice results for a very simple shading model https:

Have a look into implementing a glazed shader, it has some super nice results; it can give some surprisingly nice results for a very simple shading model https://imgur.com/a/TcliH https://imgur.com/a/TcliH . There are more details on: http://www.cs.cornell.edu/courses/cs4620/2017sp/ http://www.cs.cornell.edu/courses/cs4620/2017sp/