Time for action – adding a normal map
Right now, lighting affects the surface as if it were completely flat. We can add a normal map to make the material appear to have depth. You've probably noticed that for almost every diffuse texture, there's a pale blue texture with similar sorts of details. Those are normal maps.
- Go back to the generic browser and search for T_HU_Deco_SM_Vent_N.
- Select it, go back to your Material Editor, and drag another Texture Sample node into the editor. Hook it up to the Normal input of the box on the left.
- Now there's a lot ...
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