add clip_segment_v3_plane_n() to clip a line segment to planes (as used for view clipping).

use in ED_view3d_win_to_segment_clip() and fix error, was clipping by only 4 planes rather then 6.

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/blenlib/BLI_math_geom.h b/source/blender/blenlib/BLI_math_geom.h
index d24d5fb8c38..ad846823669 100644
--- a/source/blender/blenlib/BLI_math_geom.h
+++ b/source/blender/blenlib/BLI_math_geom.h
@@ -170,7 +170,8 @@ int isect_sweeping_sphere_tri_v3(const float p1[3], const float p2[3], const flo
 int isect_axial_line_tri_v3(const int axis, const float co1[3], const float co2[3],
                             const float v0[3], const float v1[3], const float v2[3], float *r_lambda);
 
-int clip_line_plane(float p1[3], float p2[3], const float plane[4]);
+bool clip_segment_v3_plane(float p1[3], float p2[3], const float plane[4]);
+bool clip_segment_v3_plane_n(float p1[3], float p2[3], float plane_array[][4], const int plane_tot);
 
 void plot_line_v2v2i(const int p1[2], const int p2[2], bool (*callback)(int, int, void *), void *userData);