Learn how to use the knife tool for advanced modeling in Blender through this quick tutorial by Jonathan Williamson.
In this quick tip we introduce you to the knife tool in Blender 2.6. The knife tool can be used for quickly adding new topology to your mesh in a flexible way. The knife tool acts much like a pen tool that allows you to draw in new vertices and edges exactly how you want them to create complex meshes.
By combining the knife tool with NGons in BMesh Blender provides an incredibly powerful modeling tool.