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Fix converting rotations to quaternion. 

This conversion must respect the LightWave ZXY rotation order.
pull/3/head
Gellule Xg 2011-12-06 16:31:03 -10:00
parent c3dad6a6b8
commit 32cabd8bbc
1 changed files with 6 additions and 1 deletions
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7
code/LWOAnimation.cpp
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@ -567,10 +567,15 @@ void AnimResolver::ExtractAnimChannel(aiNodeAnim** out, unsigned int flags /*= 0
anim->mRotationKeys = new aiQuatKey[ anim->mNumRotationKeys = keys.size() ];
// convert heading, pitch, bank to quaternion
// mValue.x=Heading=Rot(Y), mValue.y=Pitch=Rot(X), mValue.z=Bank=Rot(Z)
// Lightwave's rotation order is ZXY
aiVector3D X(1.0,0.0,0.0);
aiVector3D Y(0.0,1.0,0.0);
aiVector3D Z(0.0,0.0,1.0);
for (unsigned int i = 0; i < anim->mNumRotationKeys; ++i) {
aiQuatKey& qk = anim->mRotationKeys[i];
qk.mTime = keys[i].mTime;
qk.mValue = aiQuaternion( -keys[i].mValue.x ,-keys[i].mValue.z ,-keys[i].mValue.y );
qk.mValue = aiQuaternion(Y,keys[i].mValue.x)*aiQuaternion(X,keys[i].mValue.y)*aiQuaternion(Z,keys[i].mValue.z);
}
}