How to add random vertical brick details?

[JGallagherP3A]

I'm having a heck of a time trying to get the last bit of detail on my bricks. See the reference image on the right side, those vertical scratches. Does anyone have any ways of doing this?

Everything I try spreads across multiple bricks and just doesn't look natural. Thank you

[Luca Giarrizzo · Accepted solution]

Hello,

You can use the Vector Warp node to offset the cracks texture by a different amount per brick. Here is a simple example of this technique:

Best regards.

 

[JGallagherP3A]

Brilliant, that was exactly what I needed. Thank you very much Luca!