also enable edge-seam unwrapping when running the mark_seam operator.

2 files changed, 9 insertions, 1 deletions

diff --git a/source/blender/editors/mesh/editmesh_mods.c b/source/blender/editors/mesh/editmesh_mods.c
index 5075ae94f8d..a6f05b8c2f6 100644
--- a/source/blender/editors/mesh/editmesh_mods.c
+++ b/source/blender/editors/mesh/editmesh_mods.c
@@ -3727,6 +3727,7 @@ void EM_deselect_by_material(EditMesh *em, int index)
 
 static int editmesh_mark_seam(bContext *C, wmOperator *op)
 {
+	Scene *scene= CTX_data_scene(C);
 	Object *obedit= CTX_data_edit_object(C);
 	EditMesh *em= BKE_mesh_get_editmesh(((Mesh *)obedit->data));
 	Mesh *me= ((Mesh *)obedit->data);
@@ -3757,6 +3758,13 @@ static int editmesh_mark_seam(bContext *C, wmOperator *op)
 		}
 	}
 
+	/* live unwrap while tagging */
+	if(	(scene->toolsettings->edge_mode_live_unwrap) &&
+		(CustomData_has_layer(&em->fdata, CD_MTFACE))
+	) {
+		ED_unwrap_lscm(scene, obedit, FALSE); /* unwrap all not just sel */
+	}
+
 	BKE_mesh_end_editmesh(obedit->data, em);
 
 	DAG_id_tag_update(obedit->data, 0);
diff --git a/source/blender/makesrna/intern/rna_scene.c b/source/blender/makesrna/intern/rna_scene.c
index db3ecb5dd5d..740cb1b36c9 100644
--- a/source/blender/makesrna/intern/rna_scene.c
+++ b/source/blender/makesrna/intern/rna_scene.c
@@ -1208,7 +1208,7 @@ static void rna_def_tool_settings(BlenderRNA  *brna)
 
 	prop= RNA_def_property(srna, "edge_path_live_unwrap", PROP_BOOLEAN, PROP_NONE);
 	RNA_def_property_boolean_sdna(prop, NULL, "edge_mode_live_unwrap", 1);
-	RNA_def_property_ui_text(prop, "Live Unwrap", "Tagging edges re-calculates unwrap");
+	RNA_def_property_ui_text(prop, "Live Unwrap", "Changing edges seam re-calculates UV unwrap");
 
 	/* etch-a-ton */
 	prop= RNA_def_property(srna, "use_bone_sketching", PROP_BOOLEAN, PROP_NONE);