Math Lib: add dist_signed_squared_to_corner_v3v3v3

Can be used to check if a point is inside the 2-planes defined by a face-corner.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_math_geom.h b/source/blender/blenlib/BLI_math_geom.h
index 495aa6b2465..f9cce27b1cb 100644
--- a/source/blender/blenlib/BLI_math_geom.h
+++ b/source/blender/blenlib/BLI_math_geom.h
@@ -104,6 +104,10 @@ float dist_squared_to_line_segment_v3(const float p[3], const float l1[3], const
 float         dist_to_line_segment_v3(const float p[3], const float l1[3], const float l2[3]);
 float dist_squared_to_line_v3(const float p[3], const float l1[3], const float l2[3]);
 float         dist_to_line_v3(const float p[3], const float l1[3], const float l2[3]);
+float dist_signed_squared_to_corner_v3v3v3(
+        const float p[3],
+        const float v1[3], const float v2[3], const float v3[3],
+        const float axis_fallback[3]);
 float closest_to_line_v3(float r[3], const float p[3], const float l1[3], const float l2[3]);
 float closest_to_line_v2(float r[2], const float p[2], const float l1[2], const float l2[2]);
 void closest_to_line_segment_v3(float r_close[3], const float p[3], const float l1[3], const float l2[3]);