ThreeJS / Ready Player Me / 头部和颈部旋转
我有点卡住了Avatar（Ready Player ME）的旋转，该旋转遵循用户的视角摄像机由PointerlockControls控制。
阿凡达（Avatar）具有以下层次结构： - 骨头（父母） - 骨头（儿童）
目标是将当前的摄像头旋转并在头部和颈部之间拆分。
我希望头部旋转不超过PI/2（甚至PI/4）每个方向（XYZ）。其余的旋转应由脖子管理。即使颈部对x和z是静态的，并且仅在y周围旋转也可以
。 NeckRotationy = camerarotationy＆lt; pi/2？ 0：摄影 - （摄影％pi/2）; 头部电流=摄像头％pi/2;
一切都起作用，直到相机开始向后看。与其旋转y旋转以在2pi的后面旋转，不如绕x和z旋转，因此简单的公式不起作用。
SMDY可以让我了解如何将相机旋转分离为脖子和头部旋转？
谢谢！
I'm a bit stuck implementing rotation of the avatar (Ready Player Me) that follows user's perspective camera controlled by PointerLockControls.
Avatar has the following hierarchy:
-bone Neck (parent)
-bone Head (child)
The goal is to take the current camera rotation and split it between the Head and Neck.
I want the head to rotate not more than PI/2 (or even PI/4) each direction (XYZ). The rest of the rotation should be managed by the Neck. It should be fine even if the Neck will be static for X and Z and rotate only around Y.
If I do a simple subtraction following the formula (I skip the logic for signs):
neckRotationY = cameraRotationY < PI/2 ? 0 : cameraRotationY - (cameraRotation % PI/2);
headRotationY = cameraRotation % PI/2;
everything works until camera starts looking backwards. Instead of rotating around Y to look behind at 2PI, the camera is rotated around X and Z, so the simple formula doesn't work.
Could smdy get me any idea of how can I separate camera rotation into neck and head rotations?
Thanks!
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