Weird Lighting Artefacts

Unity Engine
1

Hey Guys,

Lighting newbie here, just wondering if anyone would be kind enough to shed some light on this issue (get the pun)… For some reason I get weird lighting artefacts when I switch between directional and directional spec, its not my uv maps because I tried mine and using simple unity meshes, and neither give different results

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2

Directional specular also gives you specular reflections - could it be that those bits are reflecting your sky box? Try placing reflection probes that encompass all bits in the scene, so the sky box isn’t being reflected.

3

Did you rebake after switching?