The Projection method creates full screen hand drawn effect with constant texture density and angle (both can be edited). Custom textures can be easily added to achive a more custom and personal look of your renders.
The UV Map method uses basic object shading and recreates it as a hand drawn effect on the surface. It uses the object`s UV map and is applied as any other texture.
The Texture method is basicaly a sketch filter for textures.
All the methods can be combined to achive best results.
The file also includes a document with short description of how the shaders work.
The files are saved in Maya 7.0 in .ma format. The files can easily be made avaliable for versions up to 4.0 by changing the version of maya in the ma file ( best with Notepad or Wordpad).