new mesh tool for cleaning up meshes, splits up non-planar faces while they exceed a given angle threshold

(access from the 'Mesh -> Clean' menu).

3 files changed, 47 insertions, 0 deletions

diff --git a/source/blender/editors/mesh/editmesh_tools.c b/source/blender/editors/mesh/editmesh_tools.c
index dd96778caad..868db4fa746 100644
--- a/source/blender/editors/mesh/editmesh_tools.c
+++ b/source/blender/editors/mesh/editmesh_tools.c
@@ -802,6 +802,51 @@ void MESH_OT_vert_connect(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
+
+static int edbm_vert_connect_nonplaner_exec(bContext *C, wmOperator *op)
+{
+	Object *obedit = CTX_data_edit_object(C);
+	BMEditMesh *em = BKE_editmesh_from_object(obedit);
+
+	const float angle_limit = RNA_float_get(op->ptr, "angle_limit");
+
+	if (!EDBM_op_call_and_selectf(
+	             em, op,
+	             "faces.out", true,
+	             "connect_verts_nonplanar faces=%hf angle_limit=%f",
+	             BM_ELEM_SELECT, angle_limit))
+	{
+		return OPERATOR_CANCELLED;
+	}
+
+
+	EDBM_update_generic(em, true, true);
+	return OPERATOR_FINISHED;
+}
+
+void MESH_OT_vert_connect_nonplanar(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Split Non-Planar Faces";
+	ot->idname = "MESH_OT_vert_connect_nonplanar";
+	ot->description = "Split non-planar faces that exceed the angle threshold";
+
+	/* api callbacks */
+	ot->exec = edbm_vert_connect_nonplaner_exec;
+	ot->poll = ED_operator_editmesh;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* props */
+	prop = RNA_def_float_rotation(ot->srna, "angle_limit", 0, NULL, 0.0f, DEG2RADF(180.0f),
+	                              "Max Angle", "Angle limit", 0.0f, DEG2RADF(180.0f));
+	RNA_def_property_float_default(prop, DEG2RADF(5.0f));
+}
+
+
 static int edbm_edge_split_exec(bContext *C, wmOperator *op)
 {
 	Object *obedit = CTX_data_edit_object(C);
diff --git a/source/blender/editors/mesh/mesh_intern.h b/source/blender/editors/mesh/mesh_intern.h
index c76b9819f75..b2d6e872206 100644
--- a/source/blender/editors/mesh/mesh_intern.h
+++ b/source/blender/editors/mesh/mesh_intern.h
@@ -166,6 +166,7 @@ void MESH_OT_normals_make_consistent(struct wmOperatorType *ot);
 void MESH_OT_vertices_smooth(struct wmOperatorType *ot);
 void MESH_OT_vertices_smooth_laplacian(struct wmOperatorType *ot);
 void MESH_OT_vert_connect(struct wmOperatorType *ot);
+void MESH_OT_vert_connect_nonplanar(struct wmOperatorType *ot);
 void MESH_OT_edge_split(struct wmOperatorType *ot);
 void MESH_OT_bridge_edge_loops(struct wmOperatorType *ot);
 void MESH_OT_wireframe(struct wmOperatorType *ot);
diff --git a/source/blender/editors/mesh/mesh_ops.c b/source/blender/editors/mesh/mesh_ops.c
index 74aaa58d32d..90dc803ea50 100644
--- a/source/blender/editors/mesh/mesh_ops.c
+++ b/source/blender/editors/mesh/mesh_ops.c
@@ -156,6 +156,7 @@ void ED_operatortypes_mesh(void)
 	WM_operatortype_append(MESH_OT_solidify);
 	WM_operatortype_append(MESH_OT_select_nth);
 	WM_operatortype_append(MESH_OT_vert_connect);
+	WM_operatortype_append(MESH_OT_vert_connect_nonplanar);
 	WM_operatortype_append(MESH_OT_knife_tool);
 	WM_operatortype_append(MESH_OT_knife_project);