Vojtěch Lacina on Twitter: "#blender3d #b3d UV mapping question: Maya have Straighten shell - select line of UVs and it straighten it with whole UV shell. Is there something similar in #b3d?
Making Curved UV's Straight - Simply Maya User Community
Is there any easy way to straighten UVs in Maya? — polycount
Maya 2016: how to straighten uv fast? — polycount
How do I straighten UV maps? - Blender Stack Exchange
Straighten UV Shells for Maya - Free Texturing Scripts / Plugins Downloads for Maya
Can someone please tell me if there's any way to straighten out the circle in the uv editor so as to make it a straight-ish line/plane like the one below it? :
How do I convert a curvy UV to a rectangluar UV? — polycount