How can I make a surface look wet in cycles? I am trying to recreate a wet road with lights reflecting off of it.
I started by making the object glossy but this did not give a very realistic look

I think I need to increase the specularity of the reflection to make it look more real but I can't find this option anywhere in cycles. Also what other techniques can I use to make a surface look wet in blender? I can link directly due to licening but this is what I am trying to recreate.
You need larger bumps. Using only the roughness from the glossy shader gives too smooth a result.

With a very quick setup:



The diffuse node represents the asphalt/road underneath the water. By mixing this with a glossy node based on the IOR of water (~1.33), it appears as if there is a thin film of specularly reflecting material (water) on top of a very bumpy diffuse material (road).



This could use a bit more large variation (cracks and large features, etc.), so you may want to use an image texture instead.