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I'm completely new to blender, I'm trying to create a simple label for a product as an exercise.
When I use the shrinkwrap modifier to the face of the object in Cycles I get a drop shadow that doesn't appear in Eevee.
I have tried UV Unwrapping as well, and I get the same result.
Q: Is there an easy way to remove this shadow for the label?
The more direct fix is to make your outer material have a mask between the metallic label, and the glass or whatever sub-material it lays upon. This also lets you skip the Shrinkwrap modifier because it uses the UV coordinates to wrap the texture around the object.
For example:
This will blend the Metallic and Color Principled shaders depending on the strength of your mask. In my case, I had a zig zag pattern lying around:
This way you have less geometry, you have very sharp control over the position & pattern using the same image texture as before, and you can make changes on the same material graph.
The easy fix:
Do that for your logo. However you should really consider rendering out your logo and use it as a texture on the bottle, you'll have fewer polies and less problems.
The reason this didn't happen in Eevee btw.: Eevees shadows are less precise and only get casted from lamps, not environment or bounced light. They either weren't created or so small that they disappeared.
