12-16-2019, 11:35 AM
Quote:..the transformed areas also aren't where they're supposed to be. You that can see in the image I attached that the folds of fabric are not contiguous across that line.
Is that just not the way the tool works? Very obvious when using few control points: example https://i.imgur.com/RK6PmMw.jpg
You might get a better result using the Warp tool, maybe constrained with a feathered selection but needs care: https://i.imgur.com/PJVgUvi.jpg
Other tools:
The gmic plugin http://www.gmic.eu has an interactive warp tool. Worth a look at but tends to move pixels outside the area you want: https://i.imgur.com/IQ1AWcN.jpg
Gimp has a hidden tool, n-point deformation, just as well it is hidden, horribly broken, but if you are willing to install and try Krita that has a working grid transform tool. https://i.imgur.com/xwDpY7e.jpg