GUITexture.pixelInset

var pixelInset : Rect

Description

Pixel inset used for pixel adjustments for size and position.

You can set the transform.localScale to Vector3.zero in order to make the GUI texture always the same pixel size.

JavaScript
    transform.position = Vector3.zero;
transform.localScale = Vector3.zero;
guiTexture.pixelInset = Rect (50, 50, 100, 100);

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
void Example() {
transform.position = Vector3.zero;
transform.localScale = Vector3.zero;
guiTexture.pixelInset = new Rect(50, 50, 100, 100);
}
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

def Example():
transform.position = Vector3.zero
transform.localScale = Vector3.zero
guiTexture.pixelInset = Rect(50, 50, 100, 100)