Procedual brick textures

Miscellaneous Forums/Blitz Showcase/Procedual brick textures

Impressive!

Just out of curiosity, roughly how did you get:
1. the scratches
2. the blotches
3. the brick edges
4. the shading on the mortar

I don't like the top-right very much, the brick edges are too pixelated looking.

Also, the mortar would look better if it also had some fine grain/bumpiness.