Chris Blackbourn
721fc9c1c9
Implement a new topology-based copy and paste solution for UVs. Usage notes: * Open the UV Editor * Use the selection tools to select a Quad joined to a Triangle joined to another Quad. * From the menu, choose UV > UV Copy * The UV co-ordinates for your quad<=>tri<=>quad are now stored internally * Use the selection tools to select a different Quad joined to a Triangle joined to a Quad. * (Optional) From the menu, choose UV > Split > Selection * From the menu, choose UV > UV Paste * The UV co-ordinates for the new selection will be moved to match the stored UVs. Repeat selection / UV Paste steps as many times as desired. For performance considerations, see https://en.wikipedia.org/wiki/Graph_isomorphism_problem In theory, UV Copy and Paste should work with all UV selection modes. Please report any problems. A copy has been made of the Graph Isomorphism code from https://github.com/stefanoquer/graphISO Copyright (c) 2019 Stefano Quer stefano.quer@polito.it GPL v3 or later. Additional integration code Copyright (c) 2022 by Blender Foundation, GPL v2 or later. Maniphest Tasks: T77911 Differential Revision: https://developer.blender.org/D16278