1 files changed, 9 insertions, 0 deletions
diff --git a/source/blender/bmesh/tools/bmesh_beautify.h b/source/blender/bmesh/tools/bmesh_beautify.h
index d0fef828e7c..2e7950118c1 100644
--- a/source/blender/bmesh/tools/bmesh_beautify.h
+++ b/source/blender/bmesh/tools/bmesh_beautify.h
@@ -27,6 +27,9 @@ enum {
   EDGE_RESTRICT_DEGENERATE = (1 << 1),
 };
 
+/**
+ * \note This function sets the edge indices to invalid values.
+ */
 void BM_mesh_beautify_fill(BMesh *bm,
                            BMEdge **edge_array,
                            const int edge_array_len,
@@ -35,6 +38,12 @@ void BM_mesh_beautify_fill(BMesh *bm,
                            const short oflag_edge,
                            const short oflag_face);
 
+/**
+ * Assuming we have 2 triangles sharing an edge (2 - 4),
+ * check if the edge running from (1 - 3) gives better results.
+ *
+ * \return (negative number means the edge can be rotated, lager == better).
+ */
 float BM_verts_calc_rotate_beauty(const BMVert *v1,
                                   const BMVert *v2,
                                   const BMVert *v3,