USA
Joined: Mar 25, 2015
Post Count: 153
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Re: strange mirror reflection
My initial guess is that you have a large light source that intersects with the mirror. Whenever a light source overlaps either the base plan or a furniture object, you'll get that dark circle effect.
(In fact, I'm pretty certain that's the issue: If you look at her lower legs, you'll notice a similar problem with her jeans. In that case, it appears the portion that lies outside of the light has been darkened.)