2 questions

[knj]

Hi guys, i hope this is a good place to ask,

can you shoot me with some links, tips - everthing is welcome - on how to create wet surface like after rain ect ?

[-HP-]

Specular maps!

Seriously what kind of vague question is that? It really depends on the engine / tech you're using. Wet surfaces are achieved via shaders with a mixture of spec maps, cubemaps for reflections and alot of shader tweaking.

[Steppenwolf]

I have a small tip: When it's wet surfaces tend to be darker then when they are dry. So take that into account when doing/tweaking your diffuse maps/materials. Also reflectivity and gloss is often higher on a wet surface. But don't go overboard with it and consider the surface type of your material. On some stuff it just looks like a layer of slime. Study some real world references.