From large image to map / terrain / texture

Hi,

I'd like to generate map from a large image file (9650*12573).
I already have a tile/image pieces generator but it generates 1900 images 256*256, and it seems hard to create a map by hand like this (and I have more then one large image to process...).

These image pieces are sorted like this :

x/y.png

Where x starts from left to right and y from top to bottom.

As MelvMay suggests me here, I should use textures to achieve that, but how?

Do you have any idea of how to achieve that programmatically? Or may be with an existing bundle?

Thanks a lot!

Julien

 

As a workaround, I tried this but really don't know how to implement it...

Code (CSharp):

1. public class TexGenerator : MonoBehaviour {
2.    
3.     private Renderer m_Renderer;
4.     private Texture2D m_MainTexture;
5.  
6.     // Use this for initialization
7.     void Start () {
8.  
9.         //Fetch the Renderer from the GameObject
10.         m_Renderer = GetComponent<Renderer> ();
11.         m_MainTexture = LoadPNG("Assets/Tiles/Ressources/Map/0/3.png");
12.         m_Renderer.material.mainTexture = m_MainTexture;
13.        
14.     }
15.  
16.     private Texture2D LoadPNG(string filePath) {
17.         Texture2D tex = null;
18.         byte[] fileData;
19.    
20.         if (File.Exists(filePath))     {
21.             UnityEngine.Debug.Log(filePath);
22.             fileData = File.ReadAllBytes(filePath);
23.             tex = new Texture2D(2, 2);
24.             tex.LoadImage(fileData); //..this will auto-resize the texture dimensions.
25.         }
26.  
27.         return tex;
28.  
29.     }
30.  
31. }