request from Jedrzej Slewczuk's:

 Option for tagging creases (Ctrl+RMB) to also re-unwrap the mesh.
 In 2.42 this could be done by setting rt==8 (very hidden), now its a little less hidden (in the toolbar).

1 files changed, 10 insertions, 1 deletions

diff --git a/source/blender/editors/mesh/editmesh_mods.c b/source/blender/editors/mesh/editmesh_mods.c
index 50ea99f46ba..5075ae94f8d 100644
--- a/source/blender/editors/mesh/editmesh_mods.c
+++ b/source/blender/editors/mesh/editmesh_mods.c
@@ -79,6 +79,7 @@ editmesh_mods.c, UI level access, no geometry changes
 #include "ED_mesh.h"
 #include "ED_screen.h"
 #include "ED_view3d.h"
+#include "ED_uvedit.h"
 
 #include "BIF_gl.h"
 
@@ -2201,7 +2202,15 @@ static void mouse_mesh_shortest_path(bContext *C, short mval[2])
 				me->drawflag |= ME_DRAWBWEIGHTS;
 				break;
 		}
-		
+
+		/* live unwrap while tagging */
+		if(	(vc.scene->toolsettings->edge_mode_live_unwrap) &&
+			(vc.scene->toolsettings->edge_mode == EDGE_MODE_TAG_SEAM) &&
+			(CustomData_has_layer(&em->fdata, CD_MTFACE))
+		) {
+			ED_unwrap_lscm(vc.scene, vc.obedit, FALSE); /* unwrap all not just sel */
+		}
+
 		DAG_id_tag_update(vc.obedit->data, 0);
 		WM_event_add_notifier(C, NC_GEOM|ND_SELECT, vc.obedit->data);
 	}