Access the particle system size by speed module.
Particle system modules do not need to be reassigned back to the system; they are interfaces and not independent objects.
using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { void Start() { ParticleSystem ps = GetComponent<ParticleSystem>(); var ss = ps.sizeBySpeed; ss.enabled = true; ss.range = new Vector2(0.0f, 2.0f);
AnimationCurve curve = new AnimationCurve(); curve.AddKey(0.0f, 0.1f); curve.AddKey(0.75f, 1.0f); ss.size = new ParticleSystem.MinMaxCurve(10.0f, curve); } }
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