Quote from st0lveFeel free to model a rock model, cause that is close to impossible to get a good result, but with zbrush and such, it would be waay better.
Uhm, basically i ment to get the biggest rock parts to come out a lot more. I'd model it in any case, if i've understood this right, even a bad normal map from a render is better than some normal map plugin for PS. But yeah, of course all that stuff would be so much easier in zbrush.