diff options
Diffstat (limited to 'source/blender/blenlib/intern/math_rotation.c')
-rw-r--r-- | source/blender/blenlib/intern/math_rotation.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/source/blender/blenlib/intern/math_rotation.c b/source/blender/blenlib/intern/math_rotation.c index 28a37d9675a..2038121e3f2 100644 --- a/source/blender/blenlib/intern/math_rotation.c +++ b/source/blender/blenlib/intern/math_rotation.c @@ -34,7 +34,17 @@ /* used to test is a quat is not normalized */ #define QUAT_EPSILON 0.0001 -void unit_qt(float *q) +/* convenience, avoids setting Y axis everywhere */ +void unit_axis_angle(float axis[3], float *angle) +{ + axis[0]= 0.0f; + axis[1]= 1.0f; + axis[2]= 0.0f; + *angle= 0.0f; +} + + +void unit_qt(float q[4]) { q[0]= 1.0f; q[1]= q[2]= q[3]= 0.0f; |