ParticleSystem.EmitParams.applyShapeToPosition

描述

在覆盖粒子位置时，将此标志设置为 true 允许您保留形状模块的影响。

如果将此标志设置为 false，则指定的位置是粒子从其生成的确切位置，并且会忽略形状模块。如果为 true，粒子系统会将形状模块移动到 EmitParams 中指定的 position，然后使用形状生成新的粒子。其他资源：ParticleSystem.EmitParams.position.

using UnityEngine;

// In this example we have a Particle System emitting aligned particles; we then emit and override the position every 2 seconds.
public class ExampleClass : MonoBehaviour
{
    private ParticleSystem system;

    void Start()
    {
        // A simple particle material with no texture.
        Material particleMaterial = new Material(Shader.Find("Particles/Standard Unlit"));

        // Create a Particle System.
        var go = new GameObject("Particle System");
        go.transform.Rotate(-90, 0, 0); // Rotate so the system emits upwards.
        system = go.AddComponent<ParticleSystem>();
        go.GetComponent<ParticleSystemRenderer>().material = particleMaterial;

        // Every 2 seconds we will emit.
        InvokeRepeating("DoEmit", 2.0f, 2.0f);
    }

    void DoEmit()
    {
        // Any parameters we assign in emitParams will override the current system's when we call Emit.
        // Here we will override the position. All other parameters will use the behavior defined in the Inspector.
        var emitParams = new ParticleSystem.EmitParams();
        emitParams.position = new Vector3(-5.0f, 0.0f, 0.0f);
        emitParams.applyShapeToPosition = true;
        system.Emit(emitParams, 10);
    }
}