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| author | Campbell Barton <ideasman42@gmail.com> | 2009-11-21 17:35:28 +0300 |
|---|---|---|
| committer | Campbell Barton <ideasman42@gmail.com> | 2009-11-21 17:35:28 +0300 |
| commit | bd1f548d8e4a47b81b03af3d50339b2fa33ff5fb (patch) | |
| tree | 4e7281db29254a9cd5b22216c3d5156c48224f0d /source/blender/blenlib/intern/math_vector.c | |
| parent | 09cf0118790e7f38fc65c3fed523edb66c095674 (diff) | |
fix for [#19655] Curve is a disaster
when changing curve twist I assumed 2D curves would not need dir or quat values set, however these are used when getting a path from a curve.
also added interp_v3_v3v3v3v3
Diffstat (limited to 'source/blender/blenlib/intern/math_vector.c')
| -rw-r--r-- | source/blender/blenlib/intern/math_vector.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/source/blender/blenlib/intern/math_vector.c b/source/blender/blenlib/intern/math_vector.c index 8d36c3ac524..502f241c195 100644 --- a/source/blender/blenlib/intern/math_vector.c +++ b/source/blender/blenlib/intern/math_vector.c @@ -68,6 +68,15 @@ void interp_v3_v3v3v3(float p[3], float v1[3], float v2[3], float v3[3], float w p[2] = v1[2]*w[0] + v2[2]*w[1] + v3[2]*w[2]; } +/* weight 3 vectors, + * 'w' must be unit length but is not a vector, just 3 weights */ +void interp_v3_v3v3v3v3(float p[3], float v1[3], float v2[3], float v3[3], float v4[3], float w[4]) +{ + p[0] = v1[0]*w[0] + v2[0]*w[1] + v3[0]*w[2] + v4[0]*w[3]; + p[1] = v1[1]*w[0] + v2[1]*w[1] + v3[1]*w[2] + v4[1]*w[3]; + p[2] = v1[2]*w[0] + v2[2]*w[1] + v3[2]*w[2] + v4[2]*w[3]; +} + void mid_v3_v3v3(float *v, float *v1, float *v2) { v[0]= 0.5f*(v1[0] + v2[0]); |