Math Lib: Add closest_to_plane helper functions

- closest_to_plane3 (for float3 planes)
- closest_to_plane*_normalized_v3 (for unit length planes)

Use when the plane is known to be unit length

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/blenlib/BLI_math_geom.h b/source/blender/blenlib/BLI_math_geom.h
index 1a25f9f897f..c4bb3cc7778 100644
--- a/source/blender/blenlib/BLI_math_geom.h
+++ b/source/blender/blenlib/BLI_math_geom.h
@@ -119,7 +119,10 @@ float dist_signed_squared_to_corner_v3v3v3(
 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]);
+void closest_to_plane_normalized_v3(float r_close[3], const float plane[4], const float pt[3]);
 void closest_to_plane_v3(float r_close[3], const float plane[4], const float pt[3]);
+void closest_to_plane3_normalized_v3(float r_close[3], const float plane[3], const float pt[3]);
+void closest_to_plane3_v3(float r_close[3], const float plane[3], const float pt[3]);
 
 /* Set 'r' to the point in triangle (t1, t2, t3) closest to point 'p' */
 void closest_on_tri_to_point_v3(float r[3], const float p[3], const float t1[3], const float t2[3], const float t3[3]);