Initial Tests for Stereo Cubemap Generator.

NewSkyBoxGenerator

using UnityEngine;
using UnityEditor;
using System;
using System.IO;

class NewSkyBoxGenerator : MonoBehaviour
{
	static int faceSize = 2046;
	static string directory = "Assets/Skyboxes";
	static string skyboxShader = "RenderFX/Skybox";


	static string[] skyBoxImageFBL = new string[]{"frontR", "backL", "upL","downL" };
	static string[] skyBoxImageFBR = new string[]{"frontL", "backR", "upR","downR"};
	static string[] skyBoxPropsFBL = new string[]{"_FrontTex", "_BackTex", "_UpTex", "_DownTex"};
	static string[] skyBoxPropsFBR = new string[]{"_FrontTex", "_BackTex", "_UpTex", "_DownTex"};

	static Vector3[] skyDirectionFB = new Vector3[]{new Vector3(0,0,0), new Vector3(0,180,0), new Vector3(-90,0,0), new Vector3(90,0,0)};
//	static Vector3[] skyDirectionFBR = new Vector3[]{new Vector3(0,0,0), new Vector3(0,180,0)};

	static string[] skyBoxImageSDL = new string[]{"SideFR", "SideBL"};
	static string[] skyBoxImageSDR = new string[]{"SideFL", "SideBR"};
	static string[] skyBoxPropsSDL = new string[]{"_RightTex", "_LeftTex"};
	static string[] skyBoxPropsSDR = new string[]{"_RightTex", "_LeftTex"};

	static Vector3[] skyDirectionSD = new Vector3[]{new Vector3(0,-90,0), new Vector3(0,90,0)};

	static string[] skyBoxImageTB = new string[]{"topL", "bottomR"};
//	static Vector3[] skyDirectionSDR = new Vector3[]{new Vector3(0,-90,0), new Vector3(0,90,0)};

	
	static string[] skyBoxImage = new string[]{"front", "right", "back", "left", "up", "down"};
	static string[] skyBoxProps = new string[]{"_FrontTex", "_RightTex", "_BackTex", "_LeftTex", "_UpTex", "_DownTex"};
	
	static Vector3[] skyDirection = new Vector3[]{new Vector3(0,0,0), new Vector3(0,-90,0), new Vector3(0,180,0), new Vector3(0,90,0), new Vector3(-90,0,0), new Vector3(90,0,0)};


//	static Material skyboxMaterialL;
//static	Material skyboxMaterialR;





	
	[MenuItem("Slee/Bake Skybox", false, 4)]
	static void Bake()
	{

		if (Selection.transforms.Length == 0)
		{
			Debug.LogWarning ("Select at least one scene object as a skybox center!");
			return;
		}


		if (!Directory.Exists(directory))
			Directory.CreateDirectory(directory);

		foreach(Transform t in Selection.transforms)
		 RenderSkyboxTo6PNG(t);
		

	}

	[MenuItem("Slee/Bake VR SKybox FB", false, 4)]
	static void Bake2()
	{
		if (Selection.transforms.Length == 0)
		{
			Debug.LogWarning ("Select at least one scene object as a skybox center!");
			return;
		}



		if (!Directory.Exists(directory))
			Directory.CreateDirectory(directory);
		RenderSkyboxToFBLPNG(Selection.transforms[0]);
		RenderSkyboxToFBRPNG(Selection.transforms[1]);
		RenderSkyboxToSDLPNG(Selection.transforms[2]);
		RenderSkyboxToSDRPNG(Selection.transforms[3]);

//		foreach(Transform t in Selection.transforms)
//			RenderSkyboxToLR1PNG(Selection.transforms[0]);
//		foreach(Transform t in Selection.transforms)
//			RenderSkyboxToLR2PNG(t);
//		
		
	}

	[MenuItem("Slee/Bake VR SKybox SD", false, 4)]
	static void Bake3()
	{
		if (Selection.transforms.Length == 0)
		{
			Debug.LogWarning ("Select at least one scene object as a skybox center!");
			return;
		}
		
		
		
		if (!Directory.Exists(directory))
			Directory.CreateDirectory(directory);
	//	RenderSkyboxToFBLPNG(Selection.transforms[0]);
	//	RenderSkyboxToFBRPNG(Selection.transforms[1]);
		RenderSkyboxToSDLPNG(Selection.transforms[0]);
		RenderSkyboxToSDRPNG(Selection.transforms[1]);
		
		//		foreach(Transform t in Selection.transforms)
		//			RenderSkyboxToLR1PNG(Selection.transforms[0]);
		//		foreach(Transform t in Selection.transforms)
		//			RenderSkyboxToLR2PNG(t);
		//		
		
	}

	static void RenderSkyboxToSDLPNG(Transform t)
	{
		GameObject go = new GameObject("SkyboxCamera", typeof(Camera));
		go.GetComponent<Camera>().useOcclusionCulling = false;
		go.GetComponent<Camera>().hdr = true;
		go.GetComponent<Camera>().renderingPath = RenderingPath.DeferredLighting;
		go.GetComponent<Camera>().clearFlags = CameraClearFlags.Skybox;
		go.GetComponent<Camera>().fieldOfView = 90;    
		go.GetComponent<Camera>().aspect = 1.0f;
		
		go.transform.position = t.position;
		go.transform.rotation = Quaternion.identity;
		
		//Render skybox        
		for (int orientation = 0; orientation < skyDirectionSD.Length ; orientation++)
		{
			string assetPath = Path.Combine(directory, t.name + "_" + skyBoxImageSDL[orientation] + ".png");
			RenderSkyBoxFaceToSDPNG(orientation, go.GetComponent<Camera>(), assetPath);

		}
		GameObject.DestroyImmediate(go);
		
		//Wire skybox material
		AssetDatabase.Refresh();
		
		Material skyboxMaterial = new Material(Shader.Find(skyboxShader));        
		for (int orientation = 0; orientation < skyDirectionSD.Length ; orientation++)
		{
			string texPath = Path.Combine(directory, t.name + "_" + skyBoxImageSDL[orientation] + ".png");
			Texture2D tex = (Texture2D)AssetDatabase.LoadAssetAtPath(texPath, typeof(Texture2D));
			tex.wrapMode = TextureWrapMode.Clamp;
			skyboxMaterial.SetTexture(skyBoxPropsSDL[orientation], tex);
		}
		
		//Save material
		string matPath = Path.Combine(directory, t.name + "_skybox" + ".mat");
		AssetDatabase.CreateAsset(skyboxMaterial, matPath);
	}

	static void RenderSkyboxToSDRPNG(Transform t)
	{
		GameObject go = new GameObject("SkyboxCamera", typeof(Camera));
		go.GetComponent<Camera>().useOcclusionCulling = false;
		go.GetComponent<Camera>().hdr = true;
		go.GetComponent<Camera>().renderingPath = RenderingPath.DeferredLighting;
		go.GetComponent<Camera>().clearFlags = CameraClearFlags.Skybox;
		go.GetComponent<Camera>().fieldOfView = 90;    
		go.GetComponent<Camera>().aspect = 1.0f;
		
		go.transform.position = t.position;
		go.transform.rotation = Quaternion.identity;
		
		//Render skybox        
		for (int orientation = 0; orientation < skyDirectionSD.Length ; orientation++)
		{
			string assetPath = Path.Combine(directory, t.name + "_" + skyBoxImageSDR[orientation] + ".png");
			RenderSkyBoxFaceToSDPNG(orientation, go.GetComponent<Camera>(), assetPath);
		}
		GameObject.DestroyImmediate(go);
		
		//Wire skybox material
		AssetDatabase.Refresh();
		
		Material skyboxMaterial = new Material(Shader.Find(skyboxShader));        
		for (int orientation = 0; orientation < skyDirectionSD.Length ; orientation++)
		{
			string texPath = Path.Combine(directory, t.name + "_" + skyBoxImageSDR[orientation] + ".png");
			Texture2D tex = (Texture2D)AssetDatabase.LoadAssetAtPath(texPath, typeof(Texture2D));
			tex.wrapMode = TextureWrapMode.Clamp;
			skyboxMaterial.SetTexture(skyBoxPropsSDR[orientation], tex);
		}
		
		//Save material
		string matPath = Path.Combine(directory, t.name + "_skybox" + ".mat");
		AssetDatabase.CreateAsset(skyboxMaterial, matPath);
	}



	static void RenderSkyboxToFBLPNG(Transform t)
	{
		GameObject go = new GameObject("SkyboxCamera", typeof(Camera));
		go.GetComponent<Camera>().useOcclusionCulling = false;
		go.GetComponent<Camera>().hdr = true;
		go.GetComponent<Camera>().renderingPath = RenderingPath.DeferredLighting;
		go.GetComponent<Camera>().clearFlags = CameraClearFlags.Skybox;
		go.GetComponent<Camera>().fieldOfView = 90;    
		go.GetComponent<Camera>().aspect = 1.0f;
		
		go.transform.position = t.position;
		go.transform.rotation = Quaternion.identity;
		
		//Render skybox        
		for (int orientation = 0; orientation < skyDirectionFB.Length ; orientation++)
		{
			string assetPath = Path.Combine(directory, t.name + "_" + skyBoxImageFBL[orientation] + ".png");
			RenderSkyBoxFaceToLRPNG(orientation, go.GetComponent<Camera>(), assetPath);
		}
		GameObject.DestroyImmediate(go);
		
		//Wire skybox material
		AssetDatabase.Refresh();
		
		Material skyboxMaterial = new Material(Shader.Find(skyboxShader));        
		for (int orientation = 0; orientation < skyDirectionFB.Length ; orientation++)
		{
			string texPath = Path.Combine(directory, t.name + "_" + skyBoxImageFBL[orientation] + ".png");
			Texture2D tex = (Texture2D)AssetDatabase.LoadAssetAtPath(texPath, typeof(Texture2D));
			tex.wrapMode = TextureWrapMode.Clamp;
			skyboxMaterial.SetTexture(skyBoxPropsFBL[orientation], tex);
		}
		
		//Save material
		string matPath = Path.Combine(directory, t.name + "_skybox" + ".mat");
		AssetDatabase.CreateAsset(skyboxMaterial, matPath);
	}

	static void RenderSkyboxToFBRPNG(Transform t)
	{
		GameObject go = new GameObject("SkyboxCamera", typeof(Camera));
		go.GetComponent<Camera>().useOcclusionCulling = false;
		go.GetComponent<Camera>().hdr = true;
		go.GetComponent<Camera>().renderingPath = RenderingPath.DeferredLighting;
		go.GetComponent<Camera>().clearFlags = CameraClearFlags.Skybox;
		go.GetComponent<Camera>().fieldOfView = 90;    
		go.GetComponent<Camera>().aspect = 1.0f;
		
		go.transform.position = t.position;
		go.transform.rotation = Quaternion.identity;
		
		//Render skybox        
		for (int orientation = 0; orientation < skyDirectionFB.Length ; orientation++)
		{
			string assetPath = Path.Combine(directory, t.name + "_" + skyBoxImageFBR[orientation] + ".png");
			RenderSkyBoxFaceToLRPNG(orientation, go.GetComponent<Camera>(), assetPath);
		}
		GameObject.DestroyImmediate(go);
		
		//Wire skybox material
		AssetDatabase.Refresh();
		
		Material skyboxMaterial = new Material(Shader.Find(skyboxShader));        
		for (int orientation = 0; orientation < skyDirectionFB.Length ; orientation++)
		{
			string texPath = Path.Combine(directory, t.name + "_" + skyBoxImageFBR[orientation] + ".png");
			Texture2D tex = (Texture2D)AssetDatabase.LoadAssetAtPath(texPath, typeof(Texture2D));
			tex.wrapMode = TextureWrapMode.Clamp;
			skyboxMaterial.SetTexture(skyBoxPropsFBR[orientation], tex);
		}
		
		//Save material
		string matPath = Path.Combine(directory, t.name + "_skybox" + ".mat");
		AssetDatabase.CreateAsset(skyboxMaterial, matPath);
	}
	
	static void RenderSkyboxTo6PNG(Transform t)
	{
		GameObject go = new GameObject("SkyboxCamera", typeof(Camera));
		go.GetComponent<Camera>().useOcclusionCulling = false;
		go.GetComponent<Camera>().hdr = true;
		go.GetComponent<Camera>().renderingPath = RenderingPath.DeferredLighting;
		go.GetComponent<Camera>().clearFlags = CameraClearFlags.Skybox;
		go.GetComponent<Camera>().fieldOfView = 90;    
		go.GetComponent<Camera>().aspect = 1.0f;
		
		go.transform.position = t.position;
		go.transform.rotation = Quaternion.identity;
		
		//Render skybox        
		for (int orientation = 0; orientation < skyDirection.Length ; orientation++)
		{
			string assetPath = Path.Combine(directory, t.name + "_" + skyBoxImage[orientation] + ".png");
			RenderSkyBoxFaceToPNG(orientation, go.GetComponent<Camera>(), assetPath);
		}
		GameObject.DestroyImmediate(go);
		
		//Wire skybox material
		AssetDatabase.Refresh();
		
		Material skyboxMaterial = new Material(Shader.Find(skyboxShader));        
		for (int orientation = 0; orientation < skyDirection.Length ; orientation++)
		{
			string texPath = Path.Combine(directory, t.name + "_" + skyBoxImage[orientation] + ".png");
			Texture2D tex = (Texture2D)AssetDatabase.LoadAssetAtPath(texPath, typeof(Texture2D));
			tex.wrapMode = TextureWrapMode.Clamp;
			skyboxMaterial.SetTexture(skyBoxProps[orientation], tex);
		}
		
		//Save material
		string matPath = Path.Combine(directory, t.name + "_skybox" + ".mat");
		AssetDatabase.CreateAsset(skyboxMaterial, matPath);
	}

	static void RenderSkyBoxFaceToLRPNG(int orientation, Camera cam, string assetPath)
	{
		cam.transform.eulerAngles = skyDirectionFB[orientation];
		RenderTexture rt = new RenderTexture(faceSize, faceSize, 24);
		cam.GetComponent<Camera>().targetTexture = rt;
		cam.GetComponent<Camera>().Render();
		RenderTexture.active = rt;
		
		Texture2D screenShot = new Texture2D(faceSize, faceSize, TextureFormat.RGB24, false);
		screenShot.ReadPixels(new Rect(0, 0, faceSize, faceSize), 0, 0); 
		
		RenderTexture.active = null;
		GameObject.DestroyImmediate(rt);
		
		byte[] bytes = screenShot.EncodeToPNG(); 
		File.WriteAllBytes(assetPath, bytes);
		
		AssetDatabase.ImportAsset(assetPath, ImportAssetOptions.ForceUpdate);
	}


	static void RenderSkyBoxFaceToSDPNG(int orientation, Camera cam, string assetPath)
	{
		cam.transform.eulerAngles = skyDirectionSD[orientation];
		RenderTexture rt = new RenderTexture(faceSize, faceSize, 24);
		cam.GetComponent<Camera>().targetTexture = rt;
		cam.GetComponent<Camera>().Render();
		RenderTexture.active = rt;
		
		Texture2D screenShot = new Texture2D(faceSize, faceSize, TextureFormat.RGB24, false);
		screenShot.ReadPixels(new Rect(0, 0, faceSize, faceSize), 0, 0); 
		
		RenderTexture.active = null;
		GameObject.DestroyImmediate(rt);
		
		byte[] bytes = screenShot.EncodeToPNG(); 
		File.WriteAllBytes(assetPath, bytes);
		
		AssetDatabase.ImportAsset(assetPath, ImportAssetOptions.ForceUpdate);
	}


	static void RenderSkyBoxFaceToPNG(int orientation, Camera cam, string assetPath)
	{
		cam.transform.eulerAngles = skyDirection[orientation];
		RenderTexture rt = new RenderTexture(faceSize, faceSize, 24);
		cam.GetComponent<Camera>().targetTexture = rt;
		cam.GetComponent<Camera>().Render();
		RenderTexture.active = rt;
		
		Texture2D screenShot = new Texture2D(faceSize, faceSize, TextureFormat.RGB24, false);
		screenShot.ReadPixels(new Rect(0, 0, faceSize, faceSize), 0, 0); 
		
		RenderTexture.active = null;
		GameObject.DestroyImmediate(rt);
		
		byte[] bytes = screenShot.EncodeToPNG(); 
		File.WriteAllBytes(assetPath, bytes);
		
		AssetDatabase.ImportAsset(assetPath, ImportAssetOptions.ForceUpdate);
	}
}