public class GraphicsMeshSample : MonoBehaviour {
	static public Material material;
	static public Mesh meshCache = null;

	void Update () {
		Vector3 position = transform.position;
		Quaternion rotation = transform.rotation;
		Vector3 scale = transform.lossyScale;
		Matrix4x4 matrix = Matrix4x4.TRS(position, rotation, scale);

		Graphics.DrawMesh(GetMesh(), matrix, material, 0);
	}

	static public Mesh GetMesh() {
		if (meshCache == null) {
			meshCache = new Mesh();
			int size = 1;

			meshCache.vertices = new Vector3[] {
				new Vector3(-size, -size, 0.01f),
				new Vector3(-size, size, 0.01f),
				new Vector3(size, size, 0.01f),
				new Vector3(size, -size, 0.01f)
			};


			meshCache.uv = new Vector2[] {
				new Vector2 (0, 0),
				new Vector2 (0, 1),
				new Vector2(1, 1),
				new Vector2 (1, 0)
			};
     		meshCache.triangles = new int[] { 0, 1, 2, 0, 2, 3};
			meshCache.RecalculateNormals();
		}

		return(meshCache);
	}
}