Derailing thread a little:
Random example for the lerping between Uv’s btw:
uv0:
uv1 (also rotated 90 degrees):
the material:
The result:
Now if you go a little more in-depth:
gives a nice whispy effect.
But even if you only have one UV channel (and some warped verts in the uv-map)
You can get nice results:
(something I tend to use lakes/quiet bodies of water, and of course, other vfx where it fits)
and if you use verts more like this:
Then lerp between the same uv’s with a different scale + pan:
you basically get a near-free uv-distortion: