Mos of the times, when I do a aerial render with or without vray material applied to surfaces, im getting as result all inner edges brighter then the remaining surfaces, as there was a bouncing light, bigger and bigger towards the inner edge.
Attached one example.
The [Brute force + Light cache] combination is more accurate to accurately represent the edges, bends, and gaps in the camera. I guess that it will have some effect on the light smearing effect by strong sunlight.
Also Adjusting the highlight burn value will work.