The bullet trajectory appears broken

[wkyfasttank]

When I was writing code following your first gunfight system tutorial, I found that after firing a few shots, the bullet trajectory started not at the muzzle, but in the direction of the last call to the trajectory. As shown in the figure: Later I thought that it might be because TrailRenderer did not clear the object data when it was recycled into the object pool. Then I added "instance.Clear();" to the PlayTrail method code in the GunScriptableObject class to solve the problem. The code is as follows (add code in the commented part):

        private IEnumerator PlayTrail(Vector3 startPoint, Vector3 endPoint, RaycastHit hit)
        {
            Debug.Log(startPoint+","+endPoint);
            TrailRenderer instance = _trailPool.Get();
            instance.gameObject.SetActive(true);
            instance.transform.position = startPoint;
            yield return null;
            instance.emitting = true;
            float distance = Vector3.Distance(startPoint, endPoint);
            float remainingDistance = distance;
            while (remainingDistance > 0)
            {
                instance.transform.position = Vector3.Lerp(startPoint, endPoint,
                    Mathf.Clamp01(1 - (remainingDistance / distance)));
                remainingDistance -= trailConfig.simulationSpeed * Time.deltaTime;
                yield return null;
            }

            instance.transform.position = endPoint;
            yield return new WaitForSeconds(trailConfig.duration);
            yield return null;
            // instance.Clear();
            instance.gameObject.SetActive(false);
            _trailPool.Release(instance);
        }

I want to know why you can still make the bullet trails not appear broken without clearing the TrailRenderer data。 I'm sorry for my poor English,Thanks for your tutorial,love from china.

[llamacademy]

What happens if you flip

instance.gameObject.SetActive(true);
instance.transform.position = startPoint;

to

instance.transform.position = startPoint;
instance.gameObject.SetActive(true);

I do remember facing this issue at one point. If you clear the trail that is also a perfectly acceptable solution if my suggestion does not work.

[wkyfasttank]

It work,thank so much.