I have a disk i’m trying to apply a normal map to one face of. I have unwrapped only the face I want to map to and have applied the normal map - however the normal map appears to be affecting faces that I haven’t unwrapped too which doesn’t happen with diffuse colour textures.
Without the normal map applied - the edge of the disk is smooth shaded as you would expect - however as soon as I apply the normal map, the edge faces go dark and look like they are sharp shaded.
1 - the data type in the image node is set to ‘color’, you want to change it to ‘non-color’.
2 - You wouldn’t really string a normal map through the bump node, but rather through the separate normal map node.