BMesh: move safe loop-normal-calc to own function

This makes sense when we want to avoid float precision error
for near co-linear edges. OTOH, this is an arbitrary decision,
so keep functions separate.

1 files changed, 3 insertions, 1 deletions

diff --git a/source/blender/bmesh/intern/bmesh_queries.h b/source/blender/bmesh/intern/bmesh_queries.h
index 903fdc59cb8..83977fa8be0 100644
--- a/source/blender/bmesh/intern/bmesh_queries.h
+++ b/source/blender/bmesh/intern/bmesh_queries.h
@@ -113,7 +113,9 @@ BMLoop *BM_loop_find_prev_nodouble(BMLoop *l, BMLoop *l_stop, const float eps_sq
 BMLoop *BM_loop_find_next_nodouble(BMLoop *l, BMLoop *l_stop, const float eps_sq);
 
 float   BM_loop_calc_face_angle(const BMLoop *l) ATTR_WARN_UNUSED_RESULT ATTR_NONNULL();
-void    BM_loop_calc_face_normal(const BMLoop *l, float r_normal[3]) ATTR_NONNULL();
+float   BM_loop_calc_face_normal(const BMLoop *l, float r_normal[3]) ATTR_NONNULL();
+float   BM_loop_calc_face_normal_safe(const BMLoop *l, float r_normal[3]) ATTR_NONNULL();
+float   BM_loop_calc_face_normal_safe_ex(const BMLoop *l, const float epsilon, float r_normal[3]) ATTR_NONNULL();
 void    BM_loop_calc_face_direction(const BMLoop *l, float r_normal[3]);
 void    BM_loop_calc_face_tangent(const BMLoop *l, float r_tangent[3]);