Material.SetTextureScale
SetTextureScale(propertyName: string, scale: Vector2): void;
void SetTextureScale(string propertyName, Vector2 scale);
def SetTextureScale(propertyName as string, scale as Vector2) as void
Description

Sets the placement scale of texture propertyName.

Common texture names used by Unity's builtin shaders:
"_MainTex" is the main diffuse texture. This can also be accessed via mainTextureScale property.
"_BumpMap" is the normal map.
"_Cube" is the reflection cubemap.

See Also: mainTextureScale property, GetTextureScale.
	function Update () {
		// Animates main texture scale in a funky way!
		var scaleX : float = Mathf.Cos (Time.time) * 0.5 + 1;
		var scaleY : float = Mathf.Sin (Time.time) * 0.5 + 1;
		renderer.material.SetTextureScale ("_MainTex", Vector2(scaleX,scaleY));
	}
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Update() {
        float scaleX = Mathf.Cos(Time.time) * 0.5F + 1;
        float scaleY = Mathf.Sin(Time.time) * 0.5F + 1;
        renderer.material.SetTextureScale("_MainTex", new Vector2(scaleX, scaleY));
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Update() as void:
		scaleX as float = ((Mathf.Cos(Time.time) * 0.5F) + 1)
		scaleY as float = ((Mathf.Sin(Time.time) * 0.5F) + 1)
		renderer.material.SetTextureScale('_MainTex', Vector2(scaleX, scaleY))