Solar settings Vue Renderer

I am fairly new to the Vue renderer but have been using Luxology a lot. I often use it for photomontages and it is not unusual that the images I have to work with are cloudy with low contrasts like the picture below. To match that light in the rendered building I use to set high Cloudiness. But when I do that in Vue it does not affect the rendering, neither does Solar Intensity. Is there some other setting blocking these settings?