Material.SetTextureOffset
SetTextureOffset(propertyName: string, offset: Vector2): void;
Description

Sets the placement offset of texture propertyName.

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

See Also: mainTextureOffset property, GetTextureOffset.
	// Scroll main texture based on time

var scrollSpeed : float = 0.5;

function Update () { var offset : float = Time.time * scrollSpeed; renderer.material.SetTextureOffset ("_MainTex", Vector2(offset,0)); }