internal override void RegisterUndo(BrushTarget brushTarget) { #if PROBUILDER_4_0_OR_NEWER if (ProBuilderBridge.IsValidProBuilderMesh(brushTarget.gameObject)) { UnityEngine.Object pbMesh = ProBuilderBridge.GetProBuilderComponent(brushTarget.gameObject); if (pbMesh != null) { Undo.RegisterCompleteObjectUndo(pbMesh, UndoMessage); modifiedPbMeshes.Add(brushTarget.gameObject); } else { Undo.RegisterCompleteObjectUndo(brushTarget.editableObject.polybrushMesh, UndoMessage); modifiedMeshes.Add(brushTarget.editableObject.polybrushMesh.polyMesh); } } else #endif { Undo.RegisterCompleteObjectUndo(brushTarget.editableObject.polybrushMesh, UndoMessage); modifiedMeshes.Add(brushTarget.editableObject.polybrushMesh.polyMesh); } brushTarget.editableObject.isDirty = true; }