UnityEngine.Material.Lerp C# (CSharp) Method

        public extern void Lerp(Material start, Material end, float t);
        /// <summary>

 IEnumerator MaterialLerp(Material material,float time)
 {
     float moveTime = 0.0f;
     while(moveTime < time){
         moveTime += Time.deltaTime;
         material.Lerp(material1, material2, moveTime/time);
         yield return null;
     }
 }