And, while clouds in the glass are a good low-computing-cost trick - see also Dwight's book for cityscape imagery pseudo-reflected in glass...
I note that it seems that none of the recently posted Artlantis renderings (this and other threads) have taken advantage of a wonderful new feature of Artlantis 2: the dynamic 'heliodon sky'.
In the camera inspector, for the background, choose 'heliodon sky'. Then, in the Heliodon Inspector, you can turn on dynamic clouds (covering the entire sky-dome) with sliders to control the mix that you want. You can also animate aspects of this sky in an animation - although unfortunately you cannot make the clouds move.
The degree of cloud cover can be made to affect the brightness of the sun as well.
Not only do you get clouds generated at a resolution guaranteed to match your rendering - not worrying about the pixel count of the image that you choose for a background - but since it is an entire dome, you get good reflections and can also do VR's that have a decent sky. If your building is facing the sunrise, you'll see the rising sun and colored clouds in the window reflection even as you see different cloud cover behind it.
A wonderful new addition to Artlantis!
Cheers,
Karl
PS Nice images that started this thread. My comment about clouds really belongs in another thread - will reference back to it from there.
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