Converts a Vector4 to a Vector3.
Vector4s can be implicitly converted to Vector3 (w is discarded).
#pragma strict
function Start() {
	// But the value here is converted to a Vector3.
	var value: Vector3 = Vector3.one;
	var renderer: Renderer = GetComponent.<Renderer>();
	renderer.material.SetVector("_SomeVariable", value);
}
using UnityEngine; using System.Collections;
public class ExampleClass : MonoBehaviour { void Start() { // Shader vectors are always Vector4s. // But the value here is converted to a Vector3. Vector3 value = Vector3.one; Renderer renderer = GetComponent<Renderer>(); renderer.material.SetVector("_SomeVariable", value); } }