A quick introduction to creating close-up telephoto sunsets in Terragen. This video is part of an introductory tutorial series on Terragen 4.
Further info on atmospheric distortion (credits to Dune and WAS):
https://planetside.co.uk/forums/index.php/topic,28307.0.html
https://planetside.co.uk/forums/index.php/topic,28315.0.html