diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_vector.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_vector.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/math_vector.c b/source/blender/blenlib/intern/math_vector.c index a21e0c8f092..521171cda95 100644 --- a/source/blender/blenlib/intern/math_vector.c +++ b/source/blender/blenlib/intern/math_vector.c @@ -657,6 +657,11 @@ void angle_poly_v3(float *angles, const float *verts[3], int len) */ void project_v2_v2v2(float out[2], const float p[2], const float v_proj[2]) { + if (UNLIKELY(is_zero_v2(v_proj))) { + zero_v2(out); + return; + } + const float mul = dot_v2v2(p, v_proj) / dot_v2v2(v_proj, v_proj); out[0] = mul * v_proj[0]; @@ -668,6 +673,11 @@ void project_v2_v2v2(float out[2], const float p[2], const float v_proj[2]) */ void project_v3_v3v3(float out[3], const float p[3], const float v_proj[3]) { + if (UNLIKELY(is_zero_v3(v_proj))) { + zero_v3(out); + return; + } + const float mul = dot_v3v3(p, v_proj) / dot_v3v3(v_proj, v_proj); out[0] = mul * v_proj[0]; @@ -677,6 +687,11 @@ void project_v3_v3v3(float out[3], const float p[3], const float v_proj[3]) void project_v3_v3v3_db(double out[3], const double p[3], const double v_proj[3]) { + if (UNLIKELY(is_zero_v3_db(v_proj))) { + zero_v3_db(out); + return; + } + const double mul = dot_v3v3_db(p, v_proj) / dot_v3v3_db(v_proj, v_proj); out[0] = mul * v_proj[0]; |