diff options
Diffstat (limited to 'source/blender/editors/transform/transform.c')
| -rw-r--r-- | source/blender/editors/transform/transform.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/source/blender/editors/transform/transform.c b/source/blender/editors/transform/transform.c index 36438712d09..4b6079001ff 100644 --- a/source/blender/editors/transform/transform.c +++ b/source/blender/editors/transform/transform.c @@ -1917,23 +1917,29 @@ static void protectedQuaternionBits(short protectflag, float *quat, float *oldqu } else { /* quaternions get limited with euler... (compatability mode) */ - float eul[3], oldeul[3], quat1[4]; - - QUATCOPY(quat1, quat); - quat_to_eul( eul,quat); - quat_to_eul( oldeul,oldquat); - + float eul[3], oldeul[3], nquat[4], noldquat[4]; + float qlen; + + qlen= normalize_qt_qt(nquat, quat); + normalize_qt_qt(noldquat, oldquat); + + quat_to_eul(eul, nquat); + quat_to_eul(oldeul, noldquat); + if (protectflag & OB_LOCK_ROTX) eul[0]= oldeul[0]; if (protectflag & OB_LOCK_ROTY) eul[1]= oldeul[1]; if (protectflag & OB_LOCK_ROTZ) eul[2]= oldeul[2]; - + eul_to_quat( quat,eul); + + /* restore original quat size */ + mul_qt_fl(quat, qlen); /* quaternions flip w sign to accumulate rotations correctly */ - if ( (quat1[0]<0.0f && quat[0]>0.0f) || (quat1[0]>0.0f && quat[0]<0.0f) ) { + if ( (nquat[0]<0.0f && quat[0]>0.0f) || (nquat[0]>0.0f && quat[0]<0.0f) ) { mul_qt_fl(quat, -1.0f); } } @@ -2013,8 +2019,7 @@ static void constraintob_from_transdata(bConstraintOb *cob, TransData *td) we don't necessarily end up with a rotation matrix, and then conversion back to quat gives a different result */ float quat[4]; - copy_qt_qt(quat, td->ext->quat); - normalize_qt(quat); + normalize_qt_qt(quat, td->ext->quat); quat_to_mat4(cob->matrix, quat); } else if (td->ext->rotOrder == ROT_MODE_AXISANGLE) { |