Hmmm. Depends how you go about it really.
If you had an image of a patch of rust and then used tattoo image brush, you could dab rust on where you wanted to.
Many people don't really realise the potential of the 'Tattoo Image' brush. It can imprint images with or without masks and with varying opacity. This could be a logo, text, textures etc. Pretty much anything.
It's hard to compete with 2D tools for sheer weight of tools and options though, I agree!
If you had an image of a patch of rust and then used tattoo image brush, you could dab rust on where you wanted to.
Many people don't really realise the potential of the 'Tattoo Image' brush. It can imprint images with or without masks and with varying opacity. This could be a logo, text, textures etc. Pretty much anything.
It's hard to compete with 2D tools for sheer weight of tools and options though, I agree!