Some of you asked me about the light masking in my "Cloud station" image:
https://planetside.co.uk/forums/index.php/topic,30293.0.html
Here is a collection of light masks I once created in Photoshop. Additionally there's a luminosity texture I like to use for this kind of things, because it looks more interesting than just a plain bright color.
The image shows an example how it may look. I used the light mask as displacement mask as well to make it look like real windows.
Always welcome! Thanks so much, Hannes.