BMesh: add utility to calculate normal from a vertex cloud

Extract from BM_verts_sort_radial_plane & simplify.

1 files changed, 5 insertions, 0 deletions

diff --git a/source/blender/bmesh/intern/bmesh_polygon.h b/source/blender/bmesh/intern/bmesh_polygon.h
index 191ebd86f4a..2ae32777a7d 100644
--- a/source/blender/bmesh/intern/bmesh_polygon.h
+++ b/source/blender/bmesh/intern/bmesh_polygon.h
@@ -38,6 +38,11 @@ float BM_face_calc_normal_vcos(const BMesh *bm,
                                const BMFace *f,
                                float r_no[3],
                                float const (*vertexCos)[3]) ATTR_NONNULL();
+
+void BM_verts_calc_normal_from_cloud_ex(
+    BMVert **varr, int varr_len, float r_normal[3], float r_center[3], int *r_index_tangent);
+void BM_verts_calc_normal_from_cloud(BMVert **varr, int varr_len, float r_normal[3]);
+
 float BM_face_calc_normal_subset(const BMLoop *l_first, const BMLoop *l_last, float r_no[3])
     ATTR_NONNULL();
 float BM_face_calc_area(const BMFace *f) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();