统一 - 旋转的物体在使用四合一时以一种奇怪的方式翻转

发布于 2025-02-10 08:45:02 字数 439 浏览 1 评论 0原文

我正在尝试在VR中创建一个系统，其中对象旋转跟随玩家手的旋转。不幸的是，当手以高角度旋转时，旋转的物体以一种奇怪的方式翻转，好像旋转从360度变为0。不允许我根据以下方面更改“灵敏度”：

1-目标是旋转1：1的比率
2-目标的旋转是手的两倍等

。

// In FixedUpdate
Quaternion deltaRotation = Quaternion.Inverse(target.rotation) * hand.rotation;
deltaRotation.ToAngleAxis(out float angle, out Vector3 axis);
target.rotation *= Quaternion.AngleAxis(angle * sensitivity, axis);

任何帮助都将不胜感激！

原文

I'm trying to create a system in VR in which an object rotation follows the rotation of the player's hand. Unfortunately, when the hand rotates at a high angle, the rotated object flips in a strange way as if it had a problem with the rotation change from 360 degrees to 0. I tried many ways to solve this problem, but each one that worked did not allow me to change "sensitivity" on the basis of:

1 - target is rotating 1: 1 ratio with hand
2 - target is rotating twice as much as hand

etc.

// In FixedUpdate
Quaternion deltaRotation = Quaternion.Inverse(target.rotation) * hand.rotation;
deltaRotation.ToAngleAxis(out float angle, out Vector3 axis);
target.rotation *= Quaternion.AngleAxis(angle * sensitivity, axis);

Any help would be appreciated!

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﹏半生如梦愿梦如真 2025-02-17 08:45:02

因此，问题在于，

Quaternion deltaRotation = Quaternion.Inverse(target.rotation) * hand.rotation;

如果灵敏度为！= 1这些对象旋转变得不同步，因此三角骨无法为您带来期望的价值。您可能想检查自上次帧以来的手旋转多少，这样：

Quaternion _lastFrameRotation;

void Awake()
{
    _lastFrameRotation = transform.rotation;
}

private void FixedUpdate()
{
    Quaternion deltaRotation = Quaternion.Inverse(_lastFrameRotation) * transform.rotation;
    deltaRotation.ToAngleAxis( out float angle, out Vector3 axis );
    target.rotation *= Quaternion.AngleAxis( angle * sensitivity, axis );

    _lastFrameRotation = transform.rotation;
}

So the problem is in

Quaternion deltaRotation = Quaternion.Inverse(target.rotation) * hand.rotation;

if the sensitivity is != 1 these objects rotations get desynchronized so the deltaRotation will not give you the value you expect. You probably wanted to check how much hand rotated since last frame, like that:

Quaternion _lastFrameRotation;

void Awake()
{
    _lastFrameRotation = transform.rotation;
}

private void FixedUpdate()
{
    Quaternion deltaRotation = Quaternion.Inverse(_lastFrameRotation) * transform.rotation;
    deltaRotation.ToAngleAxis( out float angle, out Vector3 axis );
    target.rotation *= Quaternion.AngleAxis( angle * sensitivity, axis );

    _lastFrameRotation = transform.rotation;
}

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