Is it possible to exchange textures in a ready game by upload?

Questions & Answers
1

Hello people,
my idea is to make it possible for friends/customers to upload their own textures (PNGs) for a 3D model even when the game is built. That means I have to make it possible to exchange these textures in-between the FBM file. Best of all would be by an online upload! Did anyone of you try this?
Thanx for your answers!!!

Aljoscha

2

Of course you can.

Uploading works like this (script from Unity - Scripting API: WWWForm )

var screenShotURL= "http://www.my-server.com/cgi-bin/screenshot.pl";

function UploadPNG() {
    // We should only read the screen after all rendering is complete
    yield WaitForEndOfFrame();

    // Create a texture the size of the screen, RGB24 format
    var width = Screen.width;
    var height = Screen.height;
    var tex = new Texture2D( width, height, TextureFormat.RGB24, false );
    // Read screen contents into the texture
    tex.ReadPixels( Rect(0, 0, width, height), 0, 0 );
    tex.Apply();

    // Encode texture into PNG
    var bytes = tex.EncodeToPNG();
    Destroy( tex );

    // Create a Web Form
    var form = new WWWForm();
    form.AddField("frameCount", Time.frameCount.ToString());
    form.AddBinaryData("fileUpload", bytes, "screenShot.png", "image/png");

    // Upload to a cgi script
    var w = WWW(screenShotURL, form);
    yield w;
    if (!String.IsNullOrEmpty(w.error))
        print(w.error);
    else
        print("Finished Uploading Screenshot");
}

and downloading (from Unity - Scripting API: WWW.texture ):

function DownloadPNG () 
{
	 // Start a download of the given URL
	var www : WWW = new WWW (screenShotURL);

	// Wait for download to complete
	yield www;

	// assign texture
	renderer.material.mainTexture = www.texture;
}