Unity Lerp和Slerp动作不流畅 [英] Unity Lerp and Slerp not moving smoothly
问题描述
我创建了一个协程以处理相机的移动和外观方向,在此协程中,我有:
I created a Coroutine to handle my camera movement and direction to look and in this coroutine I have :
public IEnumerator MoveCameraLookAtObject(Transform _cameraTransform, Vector3 startPos, Vector3 endPos, Vector3 lookAt, float time)
{
// Loop through a timed based situation.
for (float i = 0f; i <= 1.0f; i += Time.deltaTime / time)
{
// Lerp the Movement.
_cameraTransform.position = Vector3.Lerp(startPos, endPos, i);
// Slerp the rotation.
Vector3 relativePos = lookAt - _cameraTransform.position;
Quaternion rotation = Quaternion.LookRotation(relativePos);
_cameraTransform.rotation = Quaternion.Slerp(_cameraTransform.rotation, rotation, i);
}
yield return null;
}
}
问题是,当我实际上在进行捆扎和捆扎时,它看起来很糟糕,而且从未如此平滑.我花了几天时间试图弄清楚这一点,对此我感到困惑.我查看了 Lerp and Slerp Question ,发现这是几乎是相同的问题,但是这个人需要的答案已经有了.
The problem is that when I am actually Lerping and Slerping it looks awful and not smooth what so ever. I am confused on what I am doing wrong as I have spent days trying to figure this out. I looked at Lerp and Slerp Question and saw that this is pretty much the same problem but the answer that person needed I already have.
推荐答案
这会更像这样
public IEnumerator MoveCameraLookAtObject(
Transform _cameraTransform,
Vector3 startPos, Vector3 endPos, Vector3 lookAt, float time)
{
float totalTime = 1.25f; // or whatever
float startTime = Time.time;
float endTime = startTime + totalTime;
startPos = etc etc
endPos = etc etc
startROTATION = ...
endROTATION = ...
// calculate those ONLY OUT HERE!!! not in the loop
while (Time.time < endTime)
{
float timeSoFar = Time.time - startTime;
float fractionTime = timeSoFar/totalTime;
//do NOT USE underscores in variable names
cameraTransform.position =
Vector3.Lerp(startPos, endPos, fractionTime);
cameraTransform.rotation =
Quaternion.Slerp(startROTATION, endROTATION, fractionTime);
yield return null; // this goes IN HERE
}
}
首先测试一下POSITION,然后尝试扭转!干杯
At first test it with JUST lerping the POSITION, then try the twist! Cheers
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