Math Lib: add isect_seg_seg_v2_point_ex

This exposes end-point bias argument, needed in rare cases.

1 files changed, 8 insertions, 2 deletions

diff --git a/source/blender/blenlib/BLI_math_geom.h b/source/blender/blenlib/BLI_math_geom.h
index f1d9c9571f2..0fef849c8fa 100644
--- a/source/blender/blenlib/BLI_math_geom.h
+++ b/source/blender/blenlib/BLI_math_geom.h
@@ -166,8 +166,14 @@ void limit_dist_v3(float v1[3], float v2[3], const float dist);
 
 int  isect_seg_seg_v2(const float a1[2], const float a2[2], const float b1[2], const float b2[2]);
 int  isect_seg_seg_v2_int(const int a1[2], const int a2[2], const int b1[2], const int b2[2]);
-int  isect_seg_seg_v2_point(const float v0[2], const float v1[2], const float v2[2], const float v3[2], float vi[2]);
-bool isect_seg_seg_v2_simple(const float v1[2], const float v2[2], const float v3[2], const float v4[2]);
+int  isect_seg_seg_v2_point_ex(
+        const float v0[2], const float v1[2], const float v2[2], const float v3[2], const float endpoint_bias,
+        float vi[2]);
+int  isect_seg_seg_v2_point(
+        const float v0[2], const float v1[2], const float v2[2], const float v3[2],
+        float vi[2]);
+bool isect_seg_seg_v2_simple(
+        const float v1[2], const float v2[2], const float v3[2], const float v4[2]);
 
 int isect_line_sphere_v3(const float l1[3], const float l2[3], const float sp[3], const float r, float r_p1[3], float r_p2[3]);
 int isect_line_sphere_v2(const float l1[2], const float l2[2], const float sp[2], const float r, float r_p1[2], float r_p2[2]);