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Bug fix for hand IK when using the Owen avatar.

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The IK was assiming that the "Hips" bone index was always 0.
This was not the case for Owen.  Now we lookup the Hips index
and cache it for use during the hipsOffset computation.
This commit is contained in:
Anthony J. Thibault 2015-10-26 17:11:46 -07:00
parent 85a975b1f4
commit 485e36d824
2 changed files with 4 additions and 1 deletions

4
libraries/animation/src/AnimInverseKinematics.cpp
View file

@ -366,7 +366,7 @@ const AnimPoseVec& AnimInverseKinematics::overlay(const AnimVariantMap& animVars
if (offsetLength > MIN_HIPS_OFFSET_LENGTH) {
// but only if offset is long enough
float scaleFactor = ((offsetLength - MIN_HIPS_OFFSET_LENGTH) / offsetLength);
_relativePoses[0].trans = underPoses[0].trans + scaleFactor * _hipsOffset;
_relativePoses[_hipsIndex].trans = underPoses[_hipsIndex].trans + scaleFactor * _hipsOffset;
}
solveWithCyclicCoordinateDescent(targets);
@ -758,8 +758,10 @@ void AnimInverseKinematics::setSkeletonInternal(AnimSkeleton::ConstPointer skele
if (skeleton) {
initConstraints();
_headIndex = _skeleton->nameToJointIndex("Head");
_hipsIndex = _skeleton->nameToJointIndex("Hips");
} else {
clearConstraints();
_headIndex = -1;
_hipsIndex = -1;
}
}

1
libraries/animation/src/AnimInverseKinematics.h
View file

@ -80,6 +80,7 @@ protected:
// experimental data for moving hips during IK
int _headIndex = -1;
int _hipsIndex = -1;
glm::vec3 _hipsOffset = Vectors::ZERO;
// _maxTargetIndex is tracked to help optimize the recalculation of absolute poses