Real Time Cel Shading in Blender 2.79. | Experimenting cel shading with Blender 2.79 real time OpenGL. I'm impressed. | By 3D Cel Shading Techniques | Facebook
How to create a Cel/Toon-Shading effect on models using blender! [OUTDATED] - Community Tutorials - DevForum | Roblox
Toon Shading in Cycles-- Windwaker Effect [BLENDER TUTORIAL] - YouTube
materials - How can I get this setup in Cycles (for cell shade) - Blender Stack Exchange