Changing textureSheetAnimation is not allowed/possible as stated in docs (Unity 5.3.3)

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1

Following link says you can update texture sheet animation as below:

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void Start() {
        ParticleSystem ps = GetComponent<ParticleSystem>();
        var ts = ps.textureSheetAnimation;
            ts.enabled = true;
        ts.numTilesX = 2;
        ts.useRandomRow = true;
    }
}

However when you call “ps.textureSheetAnimation” it returns a struct. Updating variable ts changes only local copy. And ParticleSystem DOES NOT ALLOW you to set textureSheetAnimation again.

(unity 5.3.3.p1)

Edit: Please ignore this message. I decompiled and saw that stuct has reference to an object and each setter method modifies a variable in the referenced objects. A bad design pattern. Still I can not change the texture sheet frame over time; but it might be another problem

Edit2:
Okay problem solved:

tsa.frameOverTime = new ParticleSystem.MinMaxCurve(3f);

You needed to do

tsa.frameOverTime = new ParticleSystem.MinMaxCurve(3f / tsa.numTilesX);
2

Thanks Man! I really apreaciate the edit with the answer! I was going crazy, about to raise an issue already.