[uGUI 4.6 Beta] Slow when update Text from script.

Hi there,

When I add a Text in the new uGUI, with a Dynamic font, or the default Arial, and I update that text with something like this:

Code (CSharp):

1. ...
2. using UnityEngine.UI;
3. ...
4. public Text myText;
5. ...
6. void Update()
7. {
8.       myText.text = Time.time.ToString();
9. }

The game slow down on Android (4.4.4, Nexus 10).

If I disable the Text component, the game run smoothly.

 

weird. Have you tried it with the old gui? Does it also slow down?

Small optimisation: I don't think there is a need to update a text 60 times a second or even more (depending on the max framerate) Here is shown how to call a function with a reduced update frequency. http://answers.unity3d.com/questions/237816/updates-refresh-interval-and-how-to-change.html

btw. what minimum android api have you set in your preferences?. I just tried 2.3.1, 3.2 and 4.4 and haven't seen a noticeable slowdown in a short test on an Android 4.4.4 device

Code (csharp):

1. using UnityEngine;
2. using UnityEngine.UI;
3. using UnityEngine.EventSystems;
4. using System.Collections;
5.  
6. public class test : MonoBehaviour, IPointerDownHandler {
7.    public Text  myText;
8.    public bool updateTime=false;
9.  
10.    void Start () {
11.      myText = GetComponent<Text>();
12.    }
13.  
14.    void Update () {
15.      if(updateTime)
16.        myText.text = ""+Time.time;
17.    }
18.  
19.    public void OnPointerDown(PointerEventData eventData)
20.    {
21.      updateTime = !updateTime;
22.    }
23. }

 

HI Kogan,

With texts (GUIText) on the old gui I had the same issue. I was waiting for the new uGUI to see if it fix it.

Good point, I also changed Update function to FixedUpdate, and also tried with a custom function called with InvokeRepeating every 0.5 seconds. Also had set targetFrameRate to 60. Same result.

Im using Minimum API Level at 2.3.1. Tested 4.4 also. Same result.

Scene:
Fresh project with only one Text object (uGUI), and just one cube rotating with transform.Rotate.

Tested on Nexus 10, Andriod 4.4.4 and Samsung Galaxy S3 Mini, Android 2.3.1.

 

DISABLING "BEST FIT" IN THE TEXT PARAGRAPTH OPTIONS WAS THE SOLUTION.
Now everything run smoothly.

Here are more info:
http://forum.unity3d.com/threads/new-gui-text-bestfit-performance-hit.263586/