diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_geom.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_geom.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/source/blender/blenlib/intern/math_geom.c b/source/blender/blenlib/intern/math_geom.c index 2d4935ed4a6..4f0e7d10dd5 100644 --- a/source/blender/blenlib/intern/math_geom.c +++ b/source/blender/blenlib/intern/math_geom.c @@ -905,7 +905,7 @@ int isect_line_line_v3(float v1[3], float v2[3], float v3[3], float v4[3], float normalize_v3_v3(dir1, a); normalize_v3_v3(dir2, b); d = dot_v3v3(dir1, dir2); - if (d == 1.0f || d == -1.0f) { + if (d >= 1.0-FLT_EPSILON*10 || d <= -1.0 + FLT_EPSILON*10) { /* colinear */ return 0; } |