This is a pretty specific shader, one I made to achieve the effect seen in the game Valkyria Chronicles (something like this). This shader overlays a given texture only in the non-lighted portion of the object, creating the effect that shadows have been pencil drawn (or at least that’s my intention). You can use whatever texture you want, of course, I used one with pencil diagonal lines all over it to achieve this effect.
The texture is rendered to the screen coordinates. There’s also another version I made for fun, with the texture mapped to the model uv. It’s a mess obviously, as it will scale and rotate the same texture, but it creates interesting effects.
Apart from this effect on the non-lighted portions of the geometry, the shader behaves as a normal Toon Lighted shader, it requires a ramp etc…
A friend of mine told me to upload this on the store, so I’ll put it up for free soon. I hope you’ll find it useful.
Here’s a screenshot:
And a link to a sample showcase scene on the webplayer:
Link