투명디스플레이 연구사업

using UnityEngine;

using System.Collections;

public class SetFaceTexture : MonoBehaviour 

{

	[Tooltip("Index of the player, tracked by this component. 0 means the 1st player, 1 - the 2nd one, 2 - the 3rd one, etc.")]

	public int playerIndex = 0;

	[Tooltip("Whether to use the face-rectangle provided by the FacetrackingManager, or not.")]

	public bool useTrackedFaceRect = false;

	[Tooltip("Width of the rectangle around the head joint, in meters.")]

	public float faceWidth = 0.3f;

	[Tooltip("Height of the rectangle around the head joint, in meters.")]

	public float faceHeight = 0.3f;

	[Tooltip("Game object renderer, used to display the face image as 2D texture.")]

	public Renderer targetObject;

	//private Renderer targetRenderer;

	private Rect faceRect;

	private Texture2D colorTex, faceTex;

	private KinectManager kinectManager;

	private FacetrackingManager faceManager;

	private BackgroundRemovalManager backManager;

	private RenderTexture foregroundTex = null;

	//private const int pixelAlignment = -2;  // must be negative power of 2

	/// <summary>

	/// Determines whether the face rectange and face texture are valid.

	/// </summary>

	/// <returns><c>true</c> if the face rectangle is valid; otherwise, <c>false</c>.</returns>

	public bool IsFaceRectValid()

	{

		return faceRect.width > 0 && faceRect.height > 0;

	}

	/// <summary>

	/// Gets the face rectangle, in pixels.

	/// </summary>

	/// <returns>The face rectangle.</returns>

	public Rect GetFaceRect()

	{

		return faceRect;

	}

	/// <summary>

	/// Gets the tracked face texture.

	/// </summary>

	/// <returns>The face texture.</returns>

	public Texture GetFaceTex()

	{

		return faceTex;

	}

	void Start () 

	{

		kinectManager = KinectManager.Instance;

		faceTex = new Texture2D(100, 100, TextureFormat.ARGB32, false);

		if (!targetObject) 

		{

			targetObject = GetComponent<Renderer>();

		}

		if(targetObject && targetObject.material)

		{

			targetObject.material.SetTextureScale("_MainTex", new Vector2(1, -1));

		}

	}

	void Update () 

	{

		if(faceManager == null)

		{

			faceManager = FacetrackingManager.Instance;

		}

		if(!kinectManager || !kinectManager.IsInitialized())

			return;

		if(!faceManager || !faceManager.IsFaceTrackingInitialized())

			return;

		long userId = kinectManager.GetUserIdByIndex(playerIndex);

		if (userId == 0) 

		{

			if(targetObject && targetObject.material && targetObject.material.mainTexture != null)

			{

				targetObject.material.mainTexture = null;

			}

			return;

		}

		if (!backManager) 

		{

			backManager = BackgroundRemovalManager.Instance;

			if (backManager) 

			{

				// re-initialize the texture

				colorTex = null;

			}

		}

		if (!foregroundTex && backManager && backManager.IsBackgroundRemovalInitialized()) 

		{

			// use foreground image

			foregroundTex = (RenderTexture)backManager.GetForegroundTex ();

//			if (!colorTex) 

//			{

//				colorTex = new Texture2D(kinectManager.GetColorImageWidth(), kinectManager.GetColorImageHeight(), TextureFormat.ARGB32, false);

//			}

//

//			try 

//			{

//				foregroundTex = (RenderTexture)backManager.GetForegroundTex ();

//				//KinectInterop.RenderTex2Tex2D (foregroundTex, ref colorTex);

//			} 

//			catch (System.Exception) 

//			{

//				colorTex = (Texture2D)backManager.GetForegroundTex ();

//			}

		}

		else 

		{

			// use color camera image

			if (!colorTex) 

			{

				colorTex = kinectManager.GetUsersClrTex();

			}

		}

		//faceRect = faceManager.GetFaceColorRect(userId);

		faceRect = GetHeadJointFaceRect(userId);

		if (faceRect.width > 0 && faceRect.height > 0) 

		{

			int faceX = (int)faceRect.x;

			int faceY = (int)faceRect.y;

			int faceW = (int)faceRect.width;

			int faceH = (int)faceRect.height;

			if(faceX < 0) faceX = 0;

			if(faceY < 0) faceY = 0;

			if((faceX + faceW) > colorTex.width) faceW = colorTex.width - faceX;

			if((faceY + faceH) > colorTex.height) faceH = colorTex.height - faceY;

			if(faceTex.width != faceW || faceTex.height != faceH)

			{

				faceTex.Resize(faceW, faceH);

			}

			if (foregroundTex) 

			{

				KinectInterop.RenderTex2Tex2D(foregroundTex, faceX, foregroundTex.height - faceY - faceH, faceW, faceH, ref faceTex);

			}

			else if(colorTex)

			{

				Color[] colorPixels = colorTex.GetPixels(faceX, faceY, faceW, faceH, 0);

				faceTex.SetPixels(colorPixels);

				faceTex.Apply();

			}

			if (targetObject && !targetObject.gameObject.activeSelf) 

			{

				targetObject.gameObject.SetActive(true);

			}

			if(targetObject && targetObject.material)

			{

				targetObject.material.mainTexture = faceTex;

			}

			// don't rotate the transform - mesh follows the head rotation

			if (targetObject.transform.rotation != Quaternion.identity) 

			{

				targetObject.transform.rotation = Quaternion.identity;

			}

		} 

		else 

		{

			if (targetObject && targetObject.gameObject.activeSelf) 

			{

				targetObject.gameObject.SetActive(false);

			}

			if(targetObject && targetObject.material && targetObject.material.mainTexture != null)

			{

				targetObject.material.mainTexture = null;

			}

		}

	}

	private Rect GetHeadJointFaceRect(long userId)

	{

		Rect faceJointRect = new Rect();

		if (useTrackedFaceRect && faceManager && 

			faceManager.IsFaceTrackingInitialized () && faceManager.IsTrackingFace (userId)) 

		{

			faceJointRect = faceManager.GetFaceColorRect(userId);

			return faceJointRect;

		}

		if(kinectManager.IsJointTracked(userId, (int)KinectInterop.JointType.Head))

		{

			Vector3 posHeadRaw = kinectManager.GetJointKinectPosition(userId, (int)KinectInterop.JointType.Head);

			if(posHeadRaw != Vector3.zero)

			{

				Vector2 posDepthHead = kinectManager.MapSpacePointToDepthCoords(posHeadRaw);

				ushort depthHead = kinectManager.GetDepthForPixel((int)posDepthHead.x, (int)posDepthHead.y);

				Vector3 sizeHalfFace = new Vector3(faceWidth / 2f, faceHeight / 2f, 0f);

				Vector3 posFaceRaw1 = posHeadRaw - sizeHalfFace;

				Vector3 posFaceRaw2 = posHeadRaw + sizeHalfFace;

				Vector2 posDepthFace1 = kinectManager.MapSpacePointToDepthCoords(posFaceRaw1);

				Vector2 posDepthFace2 = kinectManager.MapSpacePointToDepthCoords(posFaceRaw2);

				if(posDepthFace1 != Vector2.zero && posDepthFace2 != Vector2.zero && depthHead > 0)

				{

					Vector2 posColorFace1 = kinectManager.MapDepthPointToColorCoords(posDepthFace1, depthHead);

					Vector2 posColorFace2 = kinectManager.MapDepthPointToColorCoords(posDepthFace2, depthHead);

					if(!float.IsInfinity(posColorFace1.x) && !float.IsInfinity(posColorFace1.y) &&

					   !float.IsInfinity(posColorFace2.x) && !float.IsInfinity(posColorFace2.y))

					{

						faceJointRect.x = posColorFace1.x;

						faceJointRect.y = posColorFace2.y;

						faceJointRect.width = Mathf.Abs(posColorFace2.x - posColorFace1.x);

						faceJointRect.height = Mathf.Abs(posColorFace2.y - posColorFace1.y);

					}

				}

			}

		}

		return faceJointRect;

	}

}