Shadow along back of scene

Questions
1

HI, Just started lighting a test scene using a Hemisphere Light at the moment but when I rotate the scene from looking top down to front view I get a shadow along the back. Tried adding spot and directional lights aimed at the back of the scene, but has no effect.

Is the shadow in the attached expected?

2

I’ve experienced a similar effect when normal vectors are wrong. If you add VertexNormalsHelper, does the normals along the top edge of the walls look good?

However, there could be a dozen of other reasons to get a similar shadow.

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3

Hi,
Your guess was correct, the normal vectors were wrong and the issue is now solved.

Many Thanks!!

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