Completely transparent. RGBA is (0, 0, 0, 0).
// clear the color of this transform's material transform.renderer.material.color = Color.clear;
using UnityEngine; using System.Collections; public class ExampleClass : MonoBehaviour { void Example() { transform.renderer.material.color = Color.clear; } }
import UnityEngine import System.Collections public class ExampleClass(MonoBehaviour): def Example() as void: transform.renderer.material.color = Color.clear