飞行姿态
var _mat = new THREE.Matrix4();
var _qtn = new THREE.Quaternion();
_mat.identity().lookAt(new THREE.Vector3(0, 0, 0), /*下一步位置*/, /*当前位置*/)
_qtn.setFromRotationMatrix(_mat);
obj.quaternion.copy(_qtn);
飞行姿态
var _mat = new THREE.Matrix4();
var _qtn = new THREE.Quaternion();
_mat.identity().lookAt(new THREE.Vector3(0, 0, 0), /*下一步位置*/, /*当前位置*/)
_qtn.setFromRotationMatrix(_mat);
obj.quaternion.copy(_qtn);