UnityShaderBook/Assets/Editor/Chapter10/RenderCubemapWizard.cs

using UnityEngine;
using UnityEditor;
using System.Collections;

public class RenderCubemapWizard : ScriptableWizard {
	
	public Transform renderFromPosition;
	public Cubemap cubemap;
	
	void OnWizardUpdate () {
		helpString = "Select transform to render from and cubemap to render into";
		isValid = (renderFromPosition != null) && (cubemap != null);
	}
	
	void OnWizardCreate () {
		// create temporary camera for rendering
		GameObject go = new GameObject( "CubemapCamera");
		go.AddComponent<Camera>();
		// place it on the object
		go.transform.position = renderFromPosition.position;
		// render into cubemap		
		go.GetComponent<Camera>().RenderToCubemap(cubemap);
		
		// destroy temporary camera
		DestroyImmediate( go );
	}
	
	[MenuItem("GameObject/Render into Cubemap")]
	static void RenderCubemap () {
		ScriptableWizard.DisplayWizard<RenderCubemapWizard>(
			"Render cubemap", "Render!");
	}
}