www.kraytracing.com

I often still notice some (too) bright areas especially around terrain intersecting with houses.
Bottom part of house seems ok but terrain looks like it is lit or something?
Just SUN light (excluded in PhySky)
Any ideas? (stupid cellphone shot btw )

It looks as light leak but is hard to say - all the time in that situation please use Photons Estimate / Precomputed to see photons cells. Too less information

Well like I said there is no light besides the Physical Sky.
And meshes do intersect so for now it's a mystery to me.
Gonna try some more and maybe send a test scene.