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-rw-r--r--indra/llcharacter/llheadrotmotion.cpp11
1 files changed, 7 insertions, 4 deletions
diff --git a/indra/llcharacter/llheadrotmotion.cpp b/indra/llcharacter/llheadrotmotion.cpp
index 88cd77f7af..0ee378f3b8 100644
--- a/indra/llcharacter/llheadrotmotion.cpp
+++ b/indra/llcharacter/llheadrotmotion.cpp
@@ -251,10 +251,13 @@ BOOL LLHeadRotMotion::onUpdate(F32 time, U8* joint_mask)
mLastHeadRot = head_rot_local;
// Set the head rotation.
- LLQuaternion torsoRotLocal = mNeckState->getJoint()->getParent()->getWorldRotation() * currentInvRootRotWorld;
- head_rot_local = head_rot_local * ~torsoRotLocal;
- mNeckState->setRotation( nlerp(NECK_LAG, LLQuaternion::DEFAULT, head_rot_local) );
- mHeadState->setRotation( nlerp(1.f - NECK_LAG, LLQuaternion::DEFAULT, head_rot_local));
+ if(mNeckState->getJoint() && mNeckState->getJoint()->getParent())
+ {
+ LLQuaternion torsoRotLocal = mNeckState->getJoint()->getParent()->getWorldRotation() * currentInvRootRotWorld;
+ head_rot_local = head_rot_local * ~torsoRotLocal;
+ mNeckState->setRotation( nlerp(NECK_LAG, LLQuaternion::DEFAULT, head_rot_local) );
+ mHeadState->setRotation( nlerp(1.f - NECK_LAG, LLQuaternion::DEFAULT, head_rot_local));
+ }
return TRUE;
}