improved method of getting the tangent axis from a bmesh triangle,

rather then getting the longest edge, get the edge which which is most different from the 2 others ends up giving more useful results: for an isosceles triangle it returns the base weather its longer or shorter then the other sides.

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_math_vector.h b/source/blender/blenlib/BLI_math_vector.h
index 9cf571aa98b..d4f16506551 100644
--- a/source/blender/blenlib/BLI_math_vector.h
+++ b/source/blender/blenlib/BLI_math_vector.h
@@ -244,6 +244,8 @@ void minmax_v2v2_v2(float min[2], float max[2], const float vec[2]);
 void dist_ensure_v3_v3fl(float v1[3], const float v2[3], const float dist);
 void dist_ensure_v2_v2fl(float v1[2], const float v2[2], const float dist);
 
+void axis_sort_v3(const float axis_values[3], int r_axis_order[3]);
+
 /***************************** Array Functions *******************************/
 /* attempted to follow fixed length vertex functions. names could be improved*/
 double dot_vn_vn(const float *array_src_a, const float *array_src_b, const int size);