@procyonlotor Thank you . so in fact baking makes rendering a lot faster then ? also i once downloaded a texture but i wonder there where so many choices. how do i know what will be used where and what it does ?
in the one map i have these files are available
AO (ambient occlusion )
bump
diff
disp
nor(is that the normal map then ? )
rough
spec
somehow i wonder if i want to use or try them . how do i know where to plug them in and what nodes i should have to use . (that is still the biggest struggle for me ) figuring out what nodes i still need to make the good connections and where to plug them in to each other (what socket to connect to what socket)