When I unwrap something with "uvpelt" I get very strange results.

With a basic sphere it only unwraps the top part when I select the horizontal center edge loop as an "edge cut group".

And when I try it on the pigs head it's the same. It completely ignores my edge selection and just unwraps a small part of the geometry.

using v 19.5.493

UV Pelt SOP only unwraps a single uv island
use Hint Primitive to specify a primitive, uv island that that primitive belongs to will become the "pelt" and will be attached to the frame and stretched

see help [www.sidefx.com] for further info

Ah, of course, why make something like uv unwrapping easy when it can be fiddly.

Thanks.

toonafish
Ah, of course, why make something like uv unwrapping easy when it can be fiddly.

Thanks.

UV Pelt is using very old technique (first added around 2003 H6.1.82) made specifically for this, it dates way before other flattening or automatic uv unwrapping techniques
so you can call it evolution

you can ask yourself why use UV Pelt when you can use UV flatten and get less distortion and all islands unwrapped

UV Pelt has still it's uses as you can stretch something using a custom frame, but nowadays I wouldn't use it for general uv unwrapping

Yes, thanks, UV Flatten is what I was looking for.

Silly me...