How capture png texture from a gameobject

Hi,

Because i'm using so many "complex" gameobject on my project, i have an overhead glitch.
When i reduced the prefab complexity, overhead disappear.

so, i'd like to capture the graphic result of my gameobjects to a png and generate a gameobject without childs.

I read a lot of documents about creating prefab and export texture but i don't understand how capture a root gameobject texture which is the graphics result of my gameobject assembly.

With this code, i can generate a png file but it doesn't contain my gameobject texture (perhaps a camera glitch on my code). I'd like write the exact gameobject png (with transparency) which is showed on my game windows.

Code (CSharp):

1.         GameObject selection = GameObject.Find ("Items");
2.         int width = 128;
3.         int height = 128;
4.         Texture2D tex = new Texture2D (width, height, TextureFormat.RGB24, false);
5.         Rect sel = new Rect ();
6.         sel.width = width;
7.         sel.height = height;
8.         sel.x = selection.transform.position.x;
9.         sel.y = selection.transform.position.y;
10.  
11.         tex.ReadPixels (sel, 0, 0);
12.  
13.         byte[] bytes = tex.EncodeToPNG ();
14.         File.WriteAllBytes ("Assets/Test/picture.png", bytes);

 

the position of transform is world position , not the postition in screen.
i think you can use Camera.WorldToScreenPoint instead

 

Hi namtm84,

Thanks for your answer, i have the same problem with camera position, i have the entire picture (with background).
Is there a method to catch the GameObject texture element (only the element and transparency) ?

ReadPixels method works fine.