Video
Inigo Quilez released a new video about creating a landscape:
It explains how to use maths to art direct the painting of a landscape.
I describe the formulas needed to do sculpting, surfacing and illumination.
It's long and dense, so watching it a few times to get everything to sink over
time is a good idea.
Click on the image above to go to the video on YouTube.
I really like his videos and see the effect of each formula being visualized and animated.