How do I create Bump maps in Zbrush 4??
Tool > Displacement Map > ‘Create DispMap’ button. Once the DispMap is created, click ‘Clone Disp’ button to put it in the Texture palette at which point you can export the image. Also, check out this link.
Thanks for the quick response. So My DM is exactly the same of what a Bump map would have been? Or do I have to tweak it?
I think it is better to render the normal map for tiny details. The displacement map is more for changing the shape of the model not so much for making pores and such.
A displacement map can be used as a bump map without tweaking.
A normal map will give better results for high-res details than a bump map would, assuming that your rendering engine supports it.