CameraClearFlags.Skybox
Description

Clear with the skybox.

If a skybox is not set up, the Camera will clear with a backgroundColor. See Also: Camera.clearFlags property, camera component, Render Settings.
	// Clear with a skybox

camera.clearFlags = CameraClearFlags.Skybox;
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        camera.clearFlags = CameraClearFlags.Skybox;
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		camera.clearFlags = CameraClearFlags.Skybox