Memory problem with WWW and Texture

Questions & Answers
1

Hello,

I'm using WWW for creating textures. Here is the script.

using UnityEngine; using System.Collections; using System;

public class NewBehaviourScript : MonoBehaviour { WWW _www = null; Texture2D _texture = null;

IEnumerator Loading()
{
    Debug.Log("Loading..." + GC.GetTotalMemory(true).ToString());
    _www = new WWW("http://saveimg.ru/pictures/23-06-10/bd328a508c9105f873ef4a2a0994f7ed.png");
    yield return _www;
    Debug.Log("Loaded..." + GC.GetTotalMemory(true).ToString());
    _texture = _www.texture;
    //_texture.Compress(false);
    _www.Dispose();
    _www = null;
    Debug.Log("WWW released..." + GC.GetTotalMemory(true).ToString());
}

void Update()
{
    if (Input.GetKeyDown("a") && _www == null && _texture == null)
    {
        Debug.Log("Update StartCoroutine" + GC.GetTotalMemory(true).ToString());
        StartCoroutine(Loading());
    }

    if (Input.GetKeyDown("s") && _www == null && _texture != null)
    {
        Debug.Log("Update Destroy" + GC.GetTotalMemory(true).ToString());
        Destroy(_texture);
        _texture = null;
    }
}

}

Then I'm trying to get texture from WWW, Unity allocates about 20 Mb of memory (according to internal profiler)

But actually I'm expecting it to allocate 4 Mb. (1000*1000 pixels) * 4 rgba size = 4 000 000 bytes

Is there any way to load texture with out any unexpected memory allocations?

2

Try this:

Texture2D tmp = new Texture2D(2,2);
_www.LoadImageIntoTexture(tmp);

Works for me and no mem leakeds.

3

I had a problem with a dynamically loaded texture, I was calling

GameObject.Destroy(www.texture)

but the getter for the texture in the www class seems to be doing something that prevents the destruction, what ultimatelly worked for me was:

Texture2D texture = www.texture;

//use texture

GameObject.Destroy(texture);
www.Dispose();

Hope it helps.