UnityEngine.Camera.RenderToCubemap C# (CSharp) Method

        public bool RenderToCubemap(Cubemap cubemap)
        {
            int faceMask = 0x3f;
            return this.RenderToCubemap(cubemap, faceMask);
        }

 // Use this for initialization
 void Start()
 {
     cam = GetComponent<Camera>();
     var rtex = new RenderTexture(cubemapSize, cubemapSize, 16);
     rtex.isCubemap = true;
     rtex.hideFlags = HideFlags.HideAndDontSave;
     mat.SetTexture("_Cube", rtex);
     cam.RenderToCubemap(rtex, 0);
 }