X 轴的生命周期旋转曲线。
另请参阅:MinMaxCurve。
using UnityEngine;
using System.Collections;
public class ExampleClass : MonoBehaviour
{
private ParticleSystem ps;
public float hSliderValue = 1.0f;
void Start()
{
ps = GetComponent<ParticleSystem>();
var rotationOverLifetime = ps.rotationOverLifetime;
rotationOverLifetime.enabled = true;
rotationOverLifetime.separateAxes = true;
AnimationCurve curve = new AnimationCurve();
curve.AddKey(0.0f, 0.0f);
curve.AddKey(1.0f, 1.0f);
rotationOverLifetime.x = new ParticleSystem.MinMaxCurve(Mathf.PI * 2.0f, curve);
rotationOverLifetime.y = 0.0f;
rotationOverLifetime.z = 0.0f;
var psr = GetComponent<ParticleSystemRenderer>();
psr.material = new Material(Shader.Find("Sprites/Default")); // this material renders a square billboard, so we can see the rotation
}
void Update()
{
var main = ps.main;
main.startLifetime = hSliderValue;
}
void OnGUI()
{
hSliderValue = GUI.HorizontalSlider(new Rect(25, 45, 100, 30), hSliderValue, 1.0f, 5.0f);
}
}