Cloud iridescence.
<video controls autoplay loop> <source src="https://s3-us-west-1.amazonaws.com/hmt-forum/iridescent_cloud_rainbow.mp4" type="video/mp4"> Your browser does not support the video tag. </video>
Previously:
https://www.homemadetools.net/forum/...292#post192261
https://www.homemadetools.net/forum/...370#post116651
https://www.homemadetools.net/forum/...824#post194302