This tutorial in three sections (see below) shows from start to finish how to put a decal (logo or adstrip) on a non-flat curved surface and then how to make a decal appear to have thickness.
First 18 min: How to put a decal on a non-flat curved surface
Next 5 min: How to make a decal to appear to have thickness
Last 11 min: Creating 3D effect of decal using high poly
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