Felice Varini is a Swiss artist who is famous of his misleading objects.
We also call it perspective-localized objects. These are shapes who look at first sight 3 dimensional, but they really are just flat drawings of a surface. And to already answer your question, there is no photoshop involved! This Swiss artist is just very, very good in drawing optical illusions. All of his objects just look so unreal that you would almost think it's fake.
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