Correct way to update/change RawImage texture?

Unity Engine
1

Hi,
First off, I want sure if this is applicable for the UI or Scripting sections in the forum, but here goes:

This might be a silly question, but I am trying to change the texture in my UI/HUD’s RawImage element.
After a lot of googling and trying, the only thing I got working was the following code:

 UIicon = GameObject.Find ("UI-holditem").GetComponent<RawImage>();
 Texture2D othericon = (Texture2D) AssetDatabase.LoadAssetAtPath("Assets/Textures/UI/item_icon_2.png", typeof(Texture2D));
 UIicon.texture = othericon;

Although it seems to work fine, I got mixed feelings when I needed to import UnityEditor for the AssetDatabase to work.
All I’m wondering about is if this is a valid way to load an image and use that as a RawImage texture?
For some reason it doesn’t feel entirely right to me.

Would love to hear some feedback on this, thanks so far.

2

That’s only gonna work in the editor. Put the texture in a resources folder, if you want to load it by name using Resources.Load.

3

awesome, you confirmed my suspicions. thanks for the info.
Now of to rearange my folder structure to properly use this resources folder :s

4

Alternately you can get the byte stream of the image and create a new Texture2D from it. This is also how you use it for images downloaded from the web with www

5

You dont need a RawTexture…

public Sprite otherSprite;
    public Texture2D otherTexture;
  
    void Start () {
        Invoke ("ChangeTexture", 1f);

    }
  
    void ChangeTexture()
    {
      
        //use this if its texture2D
        Vector2 pivot = new Vector2(0.5f, 0.5f);
        Rect tRect = new Rect(0,0, otherTexture.width, otherTexture.height);
        GetComponent<Image>().overrideSprite = Sprite.Create( otherTexture, tRect, pivot);
      
        //use this if its sprite  
        GetComponent<Image>().overrideSprite = otherSprite;
    }
1 Like
6

That is an interesting way of creating a sprite from a texture @psyydack
Although I’d have to wonder why you would (apart from avoiding issues with the RawTeture UI Component :smile:)

7

I know this is an old post, but Im having a similar issue.
In my case I am trying to change the movieTexture on my Raw Image when I press a button. I have a few buttons and a few videos, Im trying to make it so that if I press button A then video A plays, button B video B plays and so on.
I have the following code which I have added to every button, on the inspector I have given each button a different video to play. But the only video that will play is the one that is originally a movie texture of the raw image (video A) so I click button A the video plays fine, but if I press button B nothing happens, the movie texture doesn’t change and nothing plays

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class VideoController : MonoBehaviour
{
   
     public MovieTexture video;
    
     public void OnMouseDown()
     {
         GetComponent<Renderer>().material.mainTexture = video as MovieTexture;
         if (!video.isPlaying)
         {
             video.Stop();
         }
        
             video.Play();
        
        
     }
    
     void Update()
     {
        
     }
}