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Unity can create a normal map from a simple greyscale image where white is the highest and black is the lowest. That means the albedo texture you have there might already serve as a simple normal map. Just create a copy of the image file, go back into the unity editor and drag the image into the "normal map" slot of the standard shader. There will be a ...


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I won't describe how to actually use the different tools in Photoshop, because that's very much artist related and out of the scope of this site. A (tangent space) normal-map represents the local normal, or the orientation of that part of the face. If your brain can realize it and know exactly what combination of colours to use to draw it, you can draw it ...



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