Unrealistic shadows

Hello!
I have a directional light on the scene and it created these shards of shadows on round object.
How do I fix this (see attached file)?

This can be fixed with the “bias” value on your light.

You should also check your normal map setup and verify that is is correctly imported (flagged as normal map). Self shadowing seems to work well on the other parts of the suit where the normal map is not flat.

Another option is to increase the resolution of your mesh and make sure you smooth its normals and vertex to avoid rough edges.

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Thank you for you answer. Increasing the bias by a small value fixed this for now, but if I’ll have problems in the future I’ll set up the normals.