问Android OpenGLES骨骼动画问题

EN

public void setBoneHeirarchy()
{

    for (Bone b : mRootBones)
    {
        setBoneTransformations(b, mRootTransform);//From assimp aiScene->mRootNode->mTransformation
    }
}

private void setBoneTransformations(Bone b, Matrix4 parent)
{
    Matrix4 globalTransform = new Matrix4();
    globalTransform.multMatrix(parent); //[this].multMatrix([arg]) multiplies the matrix like [this] = [this] * [arg]
    globalTransform.multMatrix(b.nodeTransformation); //loaded from assimp as aiNode->mTransformation

    b.transformation.loadIdentity(); //the final transformation to return
    b.transformation.multMatrix(mRootTransformInverse); //Inverse of mRootNode->mTransformation
    b.transformation.multMatrix(globalTransform); //calculated above
    b.transformation.multMatrix(b.offsetMatrix); //read from text file (converted with assimp)

    for (Bone child: b.children)
        setBoneTransformations(child, globalTransform);
}