56 lines
1.4 KiB
C#
56 lines
1.4 KiB
C#
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//----------------------------------------------
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// NGUI: Next-Gen UI kit
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// Copyright © 2011-2015 Tasharen Entertainment
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//----------------------------------------------
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using UnityEngine;
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/// <summary>
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/// This script can be used to restrict camera rendering to a specific part of the screen by specifying the two corners.
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/// </summary>
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[ExecuteInEditMode]
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[RequireComponent(typeof(Camera))]
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[AddComponentMenu("NGUI/UI/Viewport Camera")]
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public class UIViewport : MonoBehaviour
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{
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public Camera sourceCamera;
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public Transform topLeft;
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public Transform bottomRight;
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public float fullSize = 1f;
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Camera mCam;
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void Start ()
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{
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#if UNITY_4_3 || UNITY_4_5 || UNITY_4_6 || UNITY_4_7
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mCam = camera;
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#else
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mCam = GetComponent<Camera>();
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#endif
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if (sourceCamera == null) sourceCamera = Camera.main;
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}
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void LateUpdate ()
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{
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if (topLeft != null && bottomRight != null)
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{
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if (topLeft.gameObject.activeInHierarchy)
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{
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Vector3 tl = sourceCamera.WorldToScreenPoint(topLeft.position);
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Vector3 br = sourceCamera.WorldToScreenPoint(bottomRight.position);
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Rect rect = new Rect(tl.x / Screen.width, br.y / Screen.height,
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(br.x - tl.x) / Screen.width, (tl.y - br.y) / Screen.height);
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float size = fullSize * rect.height;
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if (rect != mCam.rect) mCam.rect = rect;
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if (mCam.orthographicSize != size) mCam.orthographicSize = size;
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mCam.enabled = true;
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}
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else mCam.enabled = false;
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}
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}
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}
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