Render from camera to texture

[Tatanan]

I am trying to take a (portion of a) screenshot with a camera and then put it as main texture in a UI Texture.

This is my code:

1.                 private IEnumerator RenderTextureOnUpdate(UITexture texture){
2.                         yield return new WaitForEndOfFrame();
3.                        
4.                         Texture2D tex = new Texture2D(434, 608);
5.                         tex.ReadPixels(new Rect(0, 0, 434, 608), 0, 0);        
6.                         tex.Apply();
7.  
8.                         texture.mainTexture = tex;
9.                 }

Is it correct?
The UITexture shows always a black image, ie, no texture.

This code is attached to a camera.

[ArenMook]

Doesn't seem like an NGUI question here. More of a question on how ReadPixels works, I'd say. I have never used it myself, so I can't suggest much. I would ask why you are making a new texture every time though instead of reusing an existing one. Once you set UITexture's mainTexture reference, it will stay. You can reuse it.