modify raycast.

.gitignore

@@ -4,6 +4,7 @@
 /[Oo]bj/
 /[Bb]uild/
 /[Ww]iki/
+/[Mm]isc/
 
 # Autogenerated VS/MD solution and project files
 *.csproj
@@ -24,3 +25,6 @@ sysinfo.txt
 
 # Others
 .DS_Store
+/Assets/AssetStoreTools*
+/Assets/Extensions*
+/uDesktopDuplication.log

Assets/uDesktopDuplication/Editor.meta

@@ -1,7 +1,7 @@
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+guid: 022a80d652ef0304e84e9d6ac689e21f
 folderAsset: yes
-timeCreated: 1477555207
+timeCreated: 1478353382
 licenseType: Pro
 DefaultImporter:
   userData: 

Assets/uDesktopDuplication/Editor/TextureEditor.cs

@@ -0,0 +1,119 @@
+using UnityEngine;
+using UnityEditor;
+using System.Linq;
+
+namespace uDesktopDuplication
+{
+
+[CustomEditor(typeof(Texture))]
+public class TextureEditor : Editor
+{
+    Texture texture
+    {
+        get { return target as Texture; }
+    }
+
+    Monitor monitor
+    {
+        get { return texture.monitor; }
+    }
+
+    bool isAvailable
+    {
+        get { return monitor == null || !Application.isPlaying; }
+    }
+
+    bool basicsFolded_ = true;
+    bool invertFolded_ = true;
+    bool clipFolded_ = true;
+    bool matFolded_ = true;
+
+    SerializedProperty invertX_;
+    SerializedProperty invertY_;
+    SerializedProperty useClip_;
+    SerializedProperty clipPos_;
+    SerializedProperty clipScale_;
+
+    void OnEnable()
+    {
+        invertX_ = serializedObject.FindProperty("invertX_");
+        invertY_ = serializedObject.FindProperty("invertY_");
+        useClip_ = serializedObject.FindProperty("useClip_");
+        clipPos_ = serializedObject.FindProperty("clipPos");
+        clipScale_ = serializedObject.FindProperty("clipScale");
+    }
+
+    public override void OnInspectorGUI()
+    {
+        serializedObject.Update();
+
+        EditorGUILayout.Space();
+        DrawMonitor();
+        DrawInvert();
+        DrawClip();
+        DrawMaterial();
+
+        serializedObject.ApplyModifiedProperties();
+    }
+
+    void Fold(string name, ref bool folded, System.Action func)
+    {
+        folded = Utils.Foldout(name, folded);
+        if (folded) {
+            ++EditorGUI.indentLevel;
+            func();
+            --EditorGUI.indentLevel;
+        }
+    }
+
+    void DrawMonitor()
+    {
+        Fold("Monitor", ref basicsFolded_, () => {
+            if (isAvailable) {
+                EditorGUILayout.HelpBox("Monitor information is available only in runtime.", MessageType.Info);
+                return;
+            }
+            var id = EditorGUILayout.Popup("Monitor", monitor.id, Manager.monitors.Select(x => x.name).ToArray());
+            if (id != monitor.id) { texture.monitorId = id; }
+            EditorGUILayout.IntField("ID", monitor.id);
+            EditorGUILayout.Toggle("Is Primary", monitor.isPrimary);
+            EditorGUILayout.EnumPopup("Rotation", monitor.rotation);
+            EditorGUILayout.Vector2Field("Resolution", new Vector2(monitor.width, monitor.height));
+            EditorGUILayout.Vector2Field("DPI", new Vector2(monitor.dpiX, monitor.dpiY));
+        });
+    }
+
+    void DrawInvert()
+    {
+        Fold("Invert", ref invertFolded_, () => {
+            texture.invertX = EditorGUILayout.Toggle("Invert X", invertX_.boolValue);
+            texture.invertY = EditorGUILayout.Toggle("Invert Y", invertY_.boolValue);
+        });
+    }
+
+    void DrawClip()
+    {
+        Fold("Clip", ref clipFolded_, () => {
+            texture.useClip = EditorGUILayout.Toggle("Use Clip", useClip_.boolValue);
+            EditorGUILayout.PropertyField(clipPos_);
+            EditorGUILayout.PropertyField(clipScale_);
+        });
+    }
+
+    void DrawMaterial()
+    {
+        Fold("Material", ref matFolded_, () => {
+            if (!Application.isPlaying) {
+                EditorGUILayout.HelpBox("These parameters are applied to the shared material when not playing.", MessageType.Info);
+            }
+            texture.meshForwardDirection = (Texture.MeshForwardDirection)EditorGUILayout.EnumPopup("Mesh Forward Direction", texture.meshForwardDirection);
+            texture.bend = EditorGUILayout.Toggle("Use Bend", texture.bend);
+            texture.width = EditorGUILayout.FloatField("Bend Width", texture.width);
+            texture.radius = EditorGUILayout.Slider("Bend Radius", texture.radius, texture.worldWidth / (2 * Mathf.PI), 100f);
+            texture.thickness = EditorGUILayout.Slider("Thickness", texture.thickness, 0f, 30f);
+            texture.culling = (Texture.Culling)EditorGUILayout.EnumPopup("Culling", texture.culling);
+        });
+    }
+}
+
+}

Assets/uDesktopDuplication/Editor/TextureEditor.cs.meta

@@ -0,0 +1,12 @@
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+guid: 1202a4540abf0ad4781c025339772c4a
+timeCreated: 1480758898
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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+  assetBundleVariant: 

Assets/uDesktopDuplication/Editor/Utils.cs

@@ -0,0 +1,46 @@
+using UnityEngine;
+using UnityEditor;
+
+namespace uDesktopDuplication
+{
+
+public static class Utils
+{
+    public static bool Foldout(string title, bool display)
+    {
+        var style = new GUIStyle("ShurikenModuleTitle");
+        style.font = new GUIStyle(EditorStyles.label).font;
+        style.border = new RectOffset(15, 7, 4, 4);
+        style.fixedHeight = 22;
+        style.contentOffset = new Vector2(20f, -2f);
+
+        var rect = GUILayoutUtility.GetRect(16f, 22f, style);
+        GUI.Box(rect, title, style);
+
+        var e = Event.current;
+
+        var toggleRect = new Rect(rect.x + 4f, rect.y + 2f, 13f, 13f);
+        if (e.type == EventType.Repaint) {
+            EditorStyles.foldout.Draw(toggleRect, false, false, display, false);
+        }
+        
+        if (e.type == EventType.MouseDown && rect.Contains(e.mousePosition)) {
+            display = !display;
+            e.Use();
+        }
+
+        return display;
+    }
+
+    public static void ReadOnlyTextField(string label, string text)
+    {
+        EditorGUILayout.BeginHorizontal();
+        {
+            EditorGUILayout.LabelField(label, GUILayout.Width(EditorGUIUtility.labelWidth - 4));
+            EditorGUILayout.SelectableLabel(text, EditorStyles.textField, GUILayout.Height(EditorGUIUtility.singleLineHeight));
+        }
+        EditorGUILayout.EndHorizontal();
+    }
+}
+
+}

Assets/uDesktopDuplication/Editor/Utils.cs.meta

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Assets/uDesktopDuplication/Examples/Prefabs.meta

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Assets/uDesktopDuplication/Examples/Prefabs/Monitor Board.prefab.meta

@@ -1,6 +1,6 @@
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Assets/uDesktopDuplication/Examples/Prefabs/Monitor Plane for Displacement Mapping.prefab.meta

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Assets/uDesktopDuplication/Examples/Prefabs/Monitor Unity Plane.prefab.meta

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Assets/uDesktopDuplication/Examples/Scenes.meta

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Assets/uDesktopDuplication/Examples/Scenes/Displacement.unity.meta

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Assets/uDesktopDuplication/Examples/Scenes/GetPixels.unity.meta

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Assets/uDesktopDuplication/Examples/Scenes/Meta Data.unity.meta

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+  userData: 
+  assetBundleName: 
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Assets/uDesktopDuplication/Examples/Scenes/Multiple Monitors Roundly.unity.meta

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+  userData: 
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Assets/uDesktopDuplication/Examples/Scenes/Multiple Monitors.unity.meta

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Assets/uDesktopDuplication/Examples/Scenes/Raycast.unity.meta

@@ -0,0 +1,8 @@
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Assets/uDesktopDuplication/Examples/Scenes/Shaders.unity.meta

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Assets/uDesktopDuplication/Examples/Scenes/Switch Scenes.unity.meta

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+licenseType: Pro
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+  userData: 
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Assets/uDesktopDuplication/Examples/Scenes/Toggle Monitors.unity.meta

@@ -0,0 +1,8 @@
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+  userData: 
+  assetBundleName: 
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Assets/uDesktopDuplication/Examples/Scenes/Zoom.unity.meta

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Assets/uDesktopDuplication/Examples/Scripts.meta

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Assets/uDesktopDuplication/Examples/Scripts/DisplacementMapping.cs

@@ -0,0 +1,58 @@
+using UnityEngine;
+using UnityEngine.Assertions;
+
+[RequireComponent(typeof(uDesktopDuplication.Texture))]
+public class DisplacementMapping : MonoBehaviour
+{
+    public enum TargetMonitor
+    { 
+        Self,
+        Next,
+        Prev,
+    }
+    public TargetMonitor target = TargetMonitor.Self;
+
+    uDesktopDuplication.Texture uddTexture_;
+
+    int dispTexId_;
+    int dispFactorId_;
+    int tessMinDistId_;
+    int tessMaxDistId_;
+    int tessFactorId_;
+
+    [Range(0.0f, 10f)] public float displacementFactor = 0.1f;
+    [Range(0.1f, 10f)] public float tessellationMinDist = 0.5f;
+    [Range(1.0f, 50f)] public float tessellationMaxDist = 25f;
+    [Range(1.0f, 50f)] public float tessellationFactor = 25f;
+
+    void Start()
+    {
+        uddTexture_ = GetComponent<uDesktopDuplication.Texture>();
+        Assert.IsNotNull(uddTexture_);
+
+        dispTexId_ = Shader.PropertyToID("_DispTex");
+        dispFactorId_ = Shader.PropertyToID("_DispFactor");
+        tessMinDistId_ = Shader.PropertyToID("_TessMinDist");
+        tessMaxDistId_ = Shader.PropertyToID("_TessMaxDist");
+        tessFactorId_ = Shader.PropertyToID("_TessFactor");
+    }
+
+    void Update()
+    {
+        var id = uddTexture_.monitor.id;
+        switch (target) {
+            case TargetMonitor.Self: break;
+            case TargetMonitor.Next: ++id; break;
+            case TargetMonitor.Prev: --id; break;
+        }
+        id = Mathf.Clamp(id, 0, uDesktopDuplication.Manager.monitorCount - 1);
+        var monitor = uDesktopDuplication.Manager.GetMonitor(id);
+        monitor.shouldBeUpdated = true;
+
+        uddTexture_.material.SetTexture(dispTexId_, monitor.texture);
+        uddTexture_.material.SetFloat(dispFactorId_, displacementFactor);
+        uddTexture_.material.SetFloat(tessMinDistId_, tessellationMinDist);
+        uddTexture_.material.SetFloat(tessMaxDistId_, tessellationMaxDist);
+        uddTexture_.material.SetFloat(tessFactorId_, tessellationFactor);
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/DisplacementMapping.cs.meta

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Assets/uDesktopDuplication/Examples/Scripts/GazePointAnalyzer.cs

@@ -0,0 +1,168 @@
+using UnityEngine;
+using MeshForwardDirection = uDesktopDuplication.Texture.MeshForwardDirection;
+
+[RequireComponent(typeof(uDesktopDuplication.Texture))]
+public class GazePointAnalyzer : MonoBehaviour
+{
+    uDesktopDuplication.Texture uddTexture_;
+
+    [Tooltip("This needs a small calculation cost.")]
+    public bool calcAveragePos = true;
+
+    private Vector2 averageCoord_ = Vector2.zero;
+    private Vector2 averageCoordVelocity_ = Vector2.zero;
+    public Vector3 averagePos
+    {
+        get { return GetWorldPositionFromCoord((int)averageCoord_.x, (int)averageCoord_.y); }
+    }
+
+    public Vector3 cursorPos
+    {
+        get { return GetWorldPositionFromCoord(uddTexture_.monitor.cursorX, uddTexture_.monitor.cursorY); }
+    }
+    private Vector2 preCursorCoord_ = Vector2.zero;
+
+    [Header("Filters")]
+    [Range(0f, 1f)] public float moveRectFilter = 0.05f;
+    [Range(0f, 1f)] public float mouseFilter = 0.05f;
+    [Range(0f, 1f)] public float dirtyRectFilter = 0.01f;
+    [Range(0f, 1f)] public float noEventFilter = 0.01f;
+    [Range(0f, 1f)] public float velocityFilter = 0.1f;
+
+    [Header("Debug")]
+    public bool drawAveragePos;
+    public bool drawCursorPos;
+    public bool drawMoveRects;
+    public bool drawDirtyRects;
+
+    void Start()
+    {
+        uddTexture_ = GetComponent<uDesktopDuplication.Texture>();
+        averageCoord_ = new Vector2(uddTexture_.monitor.width / 2, uddTexture_.monitor.height / 2);
+    }
+
+    public Vector3 GetWorldPositionFromCoord(int u, int v)
+    {
+        return uddTexture_.GetWorldPositionFromCoord(u, v);
+    }
+
+    void CalcAveragePos()
+    {
+        if (!calcAveragePos) return;
+
+        var coord = Vector2.zero;
+        var monitor = uddTexture_.monitor;
+        var cursorCoord = new Vector2(monitor.cursorX, monitor.cursorY);
+        var filter = 0f;
+
+        // move rect
+        if (monitor.moveRectCount > 0) {
+            foreach (var rects in monitor.moveRects) {
+                var rect = rects.destination;
+                var center = new Vector2(
+                    (rect.right  + rect.left) / 2, 
+                    (rect.bottom + rect.top)  / 2);
+                coord += center;
+            }
+            coord /= monitor.moveRectCount;
+            filter = moveRectFilter;
+        } 
+        // mouse
+        else if (
+            monitor.isCursorVisible && 
+            cursorCoord != preCursorCoord_ &&
+            (cursorCoord - preCursorCoord_).magnitude > 5 &&
+            monitor.cursorX >= 0 && 
+            monitor.cursorY >= 0) 
+        {
+            coord = cursorCoord;
+            filter = mouseFilter;
+        } 
+        // dirty rect
+        else if (monitor.dirtyRectCount > 0) {
+            var totalWeights = 0f;
+            foreach (var rect in monitor.dirtyRects) {
+                var center = new Vector2(
+                    (rect.right  + rect.left) / 2, 
+                    (rect.bottom + rect.top)  / 2);
+                var weight = 1f / Mathf.Sqrt((rect.right - rect.left) * (rect.bottom - rect.top));
+                coord += center * weight;
+                totalWeights += weight;
+            }
+            coord /= totalWeights;
+            filter = dirtyRectFilter;
+        } 
+        // no event
+        else {
+            coord = new Vector2(monitor.width / 2, monitor.height / 2);
+            filter = noEventFilter;
+        }
+
+        var cf = (filter / ((1f / 60) / Time.deltaTime));
+        var vf = (velocityFilter / ((1f / 60) / Time.deltaTime));
+        var targetCoord = averageCoord_ + (coord - averageCoord_) * cf;
+        var targetVelocity = targetCoord - averageCoord_;
+
+        if (float.IsNaN(targetCoord.x) || float.IsNaN(targetCoord.y)) return;
+        if (float.IsNaN(targetVelocity.x) || float.IsNaN(targetVelocity.y)) return;
+
+        averageCoordVelocity_ += (targetVelocity - averageCoordVelocity_) * vf;
+        averageCoord_ += averageCoordVelocity_;
+        averageCoord_.x = Mathf.Clamp(averageCoord_.x, 0, monitor.width);
+        averageCoord_.y = Mathf.Clamp(averageCoord_.y, 0, monitor.height);
+
+        preCursorCoord_ = cursorCoord;
+    }
+
+    void Update()
+    {
+        CalcAveragePos();
+        DebugDraw();
+    }
+
+    void DebugDraw()
+    {
+        if (drawAveragePos) DrawAveragePos();
+        if (drawCursorPos)  DrawCursorPos();
+        if (drawDirtyRects) DrawDirtyRects();
+        if (drawMoveRects)  DrawMoveRects();
+    }
+
+    void DrawRect(uDesktopDuplication.RECT rect, Color color)
+    {
+        var p0 = GetWorldPositionFromCoord(rect.left,  rect.top);
+        var p1 = GetWorldPositionFromCoord(rect.right, rect.top);
+        var p2 = GetWorldPositionFromCoord(rect.right, rect.bottom);
+        var p3 = GetWorldPositionFromCoord(rect.left,  rect.bottom);
+
+        Debug.DrawLine(p0, p1, color);
+        Debug.DrawLine(p1, p2, color);
+        Debug.DrawLine(p2, p3, color);
+        Debug.DrawLine(p3, p0, color);
+    }
+
+    void DrawAveragePos()
+    {
+        Debug.DrawLine(transform.position, averagePos, Color.yellow);
+    }
+
+    void DrawCursorPos()
+    {
+        Debug.DrawLine(transform.position, cursorPos, Color.grey);
+    }
+
+    void DrawMoveRects()
+    {
+        foreach (var rect in uddTexture_.monitor.moveRects) {
+            DrawRect(rect.source, Color.blue);
+            DrawRect(rect.destination, Color.green);
+        }
+    }
+
+    void DrawDirtyRects()
+    {
+        foreach (var rect in uddTexture_.monitor.dirtyRects) {
+            DrawRect(rect, Color.red);
+        }
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/GazePointAnalyzer.cs.meta

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Assets/uDesktopDuplication/Examples/Scripts/GetPixelsExample.cs

@@ -0,0 +1,36 @@
+using UnityEngine;
+
+public class GetPixelsExample : MonoBehaviour
+{
+    [SerializeField] uDesktopDuplication.Texture uddTexture;
+
+    [SerializeField] int x = 100;
+    [SerializeField] int y = 100;
+    const int width = 64;
+    const int height = 32;
+    
+    public Texture2D texture;
+    Color32[] colors = new Color32[width * height];
+
+    void Start()
+    {
+        texture = new Texture2D(width, height, TextureFormat.ARGB32, false);
+        GetComponent<Renderer>().material.mainTexture = texture;
+    }
+
+    void Update()
+    {
+        // must be called (performance will be slightly down).
+        uDesktopDuplication.Manager.primary.useGetPixels = true;
+
+        var monitor = uddTexture.monitor;
+        if (!monitor.hasBeenUpdated) return;
+
+        if (monitor.GetPixels(colors, x, y, width, height)) {
+            texture.SetPixels32(colors);
+            texture.Apply();
+        }
+
+        Debug.Log(monitor.GetPixel(monitor.cursorX, monitor.cursorY));
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/GetPixelsExample.cs.meta

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Assets/uDesktopDuplication/Examples/Scripts/Loupe.cs

@@ -0,0 +1,50 @@
+using UnityEngine;
+
+[RequireComponent(typeof(uDesktopDuplication.Texture))]
+public class Loupe : MonoBehaviour
+{
+    private uDesktopDuplication.Texture uddTexture_;
+    public float zoom = 3f;
+    public float aspect = 1f;
+
+    void Start()
+    {
+        uddTexture_ = GetComponent<uDesktopDuplication.Texture>();
+        uddTexture_.useClip = true;
+    }
+
+    void LateUpdate()
+    {
+        CheckVariables();
+
+        if (uDesktopDuplication.Manager.cursorMonitorId < 0) return;
+        uddTexture_.monitorId = uDesktopDuplication.Manager.cursorMonitorId;
+
+        // To get other monitor textures, set dirty flag.
+        foreach (var target in uDesktopDuplication.Manager.monitors) {
+            target.CreateTextureIfNeeded();
+            target.shouldBeUpdated = true;
+        }
+
+        var monitor = uddTexture_.monitor;
+        var x = monitor.isCursorVisible ? 
+            (float)monitor.cursorX / monitor.width :
+            (float)monitor.systemCursorX / monitor.width;
+        var y = monitor.isCursorVisible ? 
+            (float)monitor.cursorY / monitor.height :
+            (float)monitor.systemCursorY / monitor.height;
+        var w = 1f / zoom;
+        var h = w / aspect * monitor.aspect;
+        x = Mathf.Clamp(x - w / 2, 0f, 1f - w);
+        y = Mathf.Clamp(y - h / 2, 0f, 1f - h);
+        uddTexture_.clipPos = new Vector2(x, y);
+        uddTexture_.clipScale = new Vector2(w, h);
+    }
+
+    void CheckVariables()
+    {
+        if (zoom < 1f) zoom = 1f;
+        if (aspect < 0.01f) aspect = 0.01f;
+    }
+}
+

Assets/uDesktopDuplication/Examples/Scripts/Loupe.cs.meta

@@ -0,0 +1,12 @@
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+timeCreated: 1478438457
+licenseType: Pro
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+  defaultReferences: []
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+  userData: 
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Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorAnalyzer.cs

@@ -0,0 +1,69 @@
+using UnityEngine;
+
+[RequireComponent(typeof(MultipleMonitorCreator))]
+public class MultipleMonitorAnalyzer : MonoBehaviour
+{
+    MultipleMonitorCreator creator_;
+    Vector3 gazePoint_ = Vector3.zero;
+    public Vector3 gazePoint 
+    { 
+        get { return gazePoint_; } 
+        private set 
+        {
+            gazePoint_ += (value - gazePoint) * (gazePointFilter / (1f / 60 / Time.deltaTime));
+        }
+    }
+
+    [Header("Filters")]
+    [Range(0f, 1f)] public float gazePointFilter = 0.1f;
+    [Range(0f, 1f)] public float moveRectFilter = 0.05f;
+    [Range(0f, 1f)] public float mouseFilter = 0.05f;
+    [Range(0f, 1f)] public float dirtyRectFilter = 0.01f;
+    [Range(0f, 1f)] public float noEventFilter = 0.01f;
+    [Range(0f, 1f)] public float velocityFilter = 0.1f;
+
+    [Header("Debug")]
+    [SerializeField] bool drawGazePoint;
+    [SerializeField] bool drawAveragePos;
+    [SerializeField] bool drawMoveRects;
+    [SerializeField] bool drawDirtyRects;
+
+    void Start()
+    {
+        creator_ = GetComponent<MultipleMonitorCreator>();
+    }
+
+    void Update()
+    {
+        var cursorMonitorId = uDesktopDuplication.Manager.cursorMonitorId;
+        for (int i = 0; i < creator_.monitors.Count; ++i) {
+            var info = creator_.monitors[i];
+            var analyzer = 
+                info.gameObject.GetComponent<GazePointAnalyzer>() ??
+                info.gameObject.AddComponent<GazePointAnalyzer>();
+            UpdateAnalyzer(analyzer);
+            if (info.uddTexture.monitorId == cursorMonitorId) {
+                gazePoint = analyzer.averagePos;
+            }
+        }
+
+        if (drawGazePoint) DrawGazePoint();
+    }
+
+    void DrawGazePoint()
+    {
+        Debug.DrawLine(transform.position, gazePoint, Color.magenta);
+    }
+
+    void UpdateAnalyzer(GazePointAnalyzer analyzer)
+    {
+        analyzer.moveRectFilter = moveRectFilter;
+        analyzer.mouseFilter = mouseFilter;
+        analyzer.dirtyRectFilter = dirtyRectFilter;
+        analyzer.noEventFilter = noEventFilter;
+        analyzer.velocityFilter = velocityFilter;
+        analyzer.drawAveragePos = drawAveragePos;
+        analyzer.drawMoveRects = drawMoveRects;
+        analyzer.drawDirtyRects = drawDirtyRects;
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorAnalyzer.cs.meta

@@ -0,0 +1,12 @@
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+guid: dbdfccef47068644b81b671bb4e6e166
+timeCreated: 1479620455
+licenseType: Pro
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Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorCreator.cs

@@ -0,0 +1,203 @@
+using UnityEngine;
+using UnityEngine.Assertions;
+using System.Collections.Generic;
+using MeshForwardDirection = uDesktopDuplication.Texture.MeshForwardDirection;
+using MonitorState = uDesktopDuplication.MonitorState;
+
+public class MultipleMonitorCreator : MonoBehaviour
+{
+    [Tooltip("Create monitors using this prefab.")]
+    public GameObject monitorPrefab;
+
+    public enum ScaleMode
+    {
+        Real,
+        Fixed,
+        Pixel,
+    }
+
+    [Tooltip("Real: DPI-based real scale \nFixed: Same width \nPixel: bigger if screen resolution is high.")]
+    public ScaleMode scaleMode = ScaleMode.Fixed;
+
+    [Tooltip("Use this scale as width if scaleMode is Fixed.")]
+    public float scale = 0.5f;
+
+    [Tooltip("Please specify the surface direction of the mesh (e.g. Plane => Y.)")]
+    public MeshForwardDirection meshForwardDirection = MeshForwardDirection.Z;
+
+    [Tooltip("Remove unsupported monitors automatically after removeWaitDuration.")]
+    public bool removeIfUnsupported = true;
+
+    [Tooltip("Remove unsupported monitors automatically after removeWaitDuration.")]
+    public float removeWaitDuration = 5f;
+
+    [Tooltip("Remove all childrens (for debug).")]
+    public bool removeChildrenWhenClear = true;
+
+    bool hasMonitorUnsupportStateChecked_ = false;
+    float removeWaitTimer_ = 0f;
+
+    public class MonitorInfo
+    {
+        public GameObject gameObject { get; set; }
+        public Quaternion originalRotation { get; set; }
+        public Vector3 originalLocalScale { get; set; }
+        public uDesktopDuplication.Texture uddTexture { get; set; }
+        public Mesh mesh { get; set; }
+    }
+
+    private List<MonitorInfo> monitors_ = new List<MonitorInfo>();
+    public List<MonitorInfo> monitors { get { return monitors_; } }
+
+    public class SavedMonitorInfo
+    {
+        public float widthScale = 1f;
+        public float heightScale = 1f;
+    }
+
+    private List<SavedMonitorInfo> savedInfoList_ = new List<SavedMonitorInfo>();
+    public List<SavedMonitorInfo> savedInfoList { get { return savedInfoList_; } }
+
+    void Start()
+    {
+        uDesktopDuplication.Manager.CreateInstance();
+        Create();
+    }
+
+    void Update()
+    {
+        if (removeIfUnsupported) {
+            RemoveUnsupportedDisplayAfterRemoveTimer();
+        }
+
+        if (uDesktopDuplication.Manager.monitorCount != monitors.Count) {
+            Recreate();
+        }
+    }
+
+    void OnEnable()
+    {
+        uDesktopDuplication.Manager.onReinitialized += Recreate;
+    }
+
+    void OnDisable()
+    {
+        uDesktopDuplication.Manager.onReinitialized -= Recreate;
+    }
+
+    void RemoveUnsupportedDisplayAfterRemoveTimer()
+    {
+        if (!hasMonitorUnsupportStateChecked_) {
+            removeWaitTimer_ += Time.deltaTime;
+            if (removeWaitTimer_ > removeWaitDuration) {
+                hasMonitorUnsupportStateChecked_ = true;
+                foreach (var info in monitors) {
+                    if (info.uddTexture.monitor.state == MonitorState.Unsupported) {
+                        Destroy(info.gameObject);
+                    }
+                }
+                monitors.RemoveAll(info => info.uddTexture.monitor.state == MonitorState.Unsupported);
+            }
+        }
+    }
+
+    void ResetRemoveTimer()
+    {
+        hasMonitorUnsupportStateChecked_ = false;
+        removeWaitTimer_ = 0f;
+    }
+
+    void Create()
+    {
+        ResetRemoveTimer();
+
+        // Create monitors
+        var n = uDesktopDuplication.Manager.monitors.Count;
+        for (int i = 0; i < n; ++i) {
+            // Create monitor obeject
+            var go = Instantiate(monitorPrefab);
+            go.name = uDesktopDuplication.Manager.monitors[i].name;
+
+            // Saved infomation
+            if (savedInfoList.Count == i) {
+                savedInfoList.Add(new SavedMonitorInfo());
+                Assert.AreEqual(i, savedInfoList.Count - 1);
+            }
+            var savedInfo = savedInfoList[i];
+
+            // Expand AABB
+            var mesh = go.GetComponent<MeshFilter>().mesh; // clone
+            var aabbScale = mesh.bounds.size;
+            aabbScale.y = Mathf.Max(aabbScale.y, aabbScale.x);
+            aabbScale.z = Mathf.Max(aabbScale.z, aabbScale.x);
+            mesh.bounds = new Bounds(mesh.bounds.center, aabbScale);
+
+            // Assign monitor
+            var texture = go.GetComponent<uDesktopDuplication.Texture>();
+            texture.monitorId = i;
+            var monitor = texture.monitor;
+
+            // Set width / height
+            float width = 1f, height = 1f;
+            switch (scaleMode) {
+                case ScaleMode.Real:
+                    width = monitor.widthMeter;
+                    height = monitor.heightMeter;
+                    break;
+                case ScaleMode.Fixed:
+                    width = scale * (monitor.isHorizontal ? monitor.aspect : 1f);
+                    height = scale * (monitor.isHorizontal ? 1f : 1f / monitor.aspect);
+                    break;
+                case ScaleMode.Pixel:
+                    width = scale * (monitor.isHorizontal ? 1f : monitor.aspect) * ((float)monitor.width / 1920);
+                    height = scale * (monitor.isHorizontal ? 1f / monitor.aspect : 1f) * ((float)monitor.width / 1920);
+                    break;
+            }
+
+            width *= savedInfo.widthScale;
+            height *= savedInfo.heightScale;
+
+            if (meshForwardDirection == MeshForwardDirection.Y) {
+                go.transform.localScale = new Vector3(width, go.transform.localScale.y, height);
+            } else {
+                go.transform.localScale = new Vector3(width, height, go.transform.localScale.z);
+            }
+
+            // Set parent as this object
+            go.transform.SetParent(transform);
+
+            // Save
+            var info = new MonitorInfo();
+            info.gameObject = go;
+            info.originalRotation = go.transform.rotation;
+            info.originalLocalScale = go.transform.localScale;
+            info.uddTexture = texture;
+            info.mesh = mesh;
+            monitors.Add(info);
+        }
+
+        // Sort monitors in coordinate order
+        monitors.Sort((a, b) => a.uddTexture.monitor.left - b.uddTexture.monitor.left);
+    }
+
+    void Clear()
+    {
+        foreach (var info in monitors) {
+            Destroy(info.gameObject);
+        }
+        if (removeChildrenWhenClear) {
+            for (int i = 0; i < transform.childCount; ++i) {
+                Destroy(transform.GetChild(i).gameObject);
+            }
+        }
+        monitors.Clear();
+    }
+
+    [ContextMenu("Recreate")]
+    public void Recreate()
+    {
+        Clear();
+        Create();
+    }
+}
+

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorCreator.cs.meta

@@ -0,0 +1,12 @@
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Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorLayouter.cs

@@ -0,0 +1,54 @@
+using UnityEngine;
+
+[RequireComponent(typeof(MultipleMonitorCreator))]
+public class MultipleMonitorLayouter : MonoBehaviour
+{
+    protected MultipleMonitorCreator creator_;
+    public bool updateEveryFrame = true;
+    public float margin = 0.1f;
+    [Range(0f, 10f)] public float thickness = 1f;
+
+    void Start()
+    {
+        creator_ = GetComponent<MultipleMonitorCreator>();
+        Layout();
+    }
+
+    protected virtual void Update()
+    {
+        margin = Mathf.Max(margin, 0f);
+
+        if (updateEveryFrame) {
+            Layout();
+        }
+    }
+
+    protected virtual void Layout()
+    {
+        var monitors = creator_.monitors;
+        var n = monitors.Count;
+
+        var totalWidth = 0f;
+        foreach (var info in monitors) {
+            var width = info.gameObject.transform.localScale.x * (info.mesh.bounds.extents.x * 2f);
+            totalWidth += width;
+        }
+        totalWidth += margin * (n - 1);
+
+        var x = -totalWidth / 2;
+
+        foreach (var info in monitors) {
+            var width = info.gameObject.transform.localScale.x;
+            x += (width * info.mesh.bounds.extents.x);
+            info.gameObject.transform.localPosition = new Vector3(x, 0f, 0f);
+            info.gameObject.transform.localRotation = info.originalRotation;
+            x += (width * info.mesh.bounds.extents.x) + margin;
+        }
+
+        foreach (var info in monitors) {
+            info.uddTexture.thickness = thickness;
+        }
+    }
+
+}
+

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorLayouter.cs.meta

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Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorRoundLayouter.cs

@@ -0,0 +1,102 @@
+using UnityEngine;
+using MeshForwardDirection = uDesktopDuplication.Texture.MeshForwardDirection;
+
+public class MultipleMonitorRoundLayouter : MultipleMonitorLayouter
+{
+    [SerializeField] bool debugDraw = true;
+
+    public float radius = 10f;
+    public Vector3 offsetAngle = Vector3.zero;
+
+    void OnDisable()
+    {
+        foreach (var info in creator_.monitors) {
+            info.uddTexture.bend = false;
+        }
+    }
+
+    protected override void Layout()
+    {
+        var monitors = creator_.monitors;
+        var n = monitors.Count;
+
+        // Keep the local scale z of monitors as 1 to bend them correctly.
+        // And save width / height to use same values after reinitialization.
+        for (int i = 0; i < n; ++i) {
+            var info = monitors[i];
+            var savedInfo = creator_.savedInfoList[i];
+            var scale = info.gameObject.transform.localScale;
+            if (creator_.meshForwardDirection == MeshForwardDirection.Y) {
+                scale.y = 1f;
+                savedInfo.widthScale = scale.x / info.originalLocalScale.x;
+                savedInfo.heightScale = scale.z / info.originalLocalScale.z;
+            } else {
+                scale.z = 1f;
+                savedInfo.widthScale = scale.x / info.originalLocalScale.x;
+                savedInfo.heightScale = scale.y / info.originalLocalScale.y;
+            }
+            info.gameObject.transform.localScale = scale;
+        }
+
+        // keep thicness plus value.
+        thickness = Mathf.Max(thickness, 0f);
+
+        // calculate total width
+        var totalWidth = 0f;
+        foreach (var info in monitors) {
+            var width = info.gameObject.transform.localScale.x * (info.mesh.bounds.extents.x * 2f);
+            totalWidth += width;
+        }
+        totalWidth += margin * (n - 1);
+
+        // expand radius if total width is larger than the circumference.
+        radius = Mathf.Max(radius, (totalWidth + margin) / (2 * Mathf.PI));
+
+        // total angle of monitors
+        var totalAngle = totalWidth / radius;
+
+        // layout
+        float angle = -totalAngle / 2;
+        var offsetRot = Quaternion.Euler(offsetAngle);
+        foreach (var info in monitors) {
+            var uddTex = info.uddTexture;
+            var width = info.gameObject.transform.localScale.x * (info.mesh.bounds.extents.x * 2f);
+
+            angle += (width / radius) * 0.5f;
+            var pos = radius * new Vector3(Mathf.Sin(angle), 0f, Mathf.Cos(angle) - 1f);
+            pos += radius * Vector3.forward;
+            pos = offsetRot * pos;
+            pos -= radius * Vector3.forward;
+            uddTex.transform.localPosition = pos;
+            uddTex.transform.localRotation = offsetRot * Quaternion.AngleAxis(angle * Mathf.Rad2Deg, Vector3.up) * info.originalRotation;
+            angle += (width * 0.5f + margin) / radius;
+
+            uddTex.bend = true;
+            uddTex.meshForwardDirection = creator_.meshForwardDirection;
+            uddTex.radius = radius;
+            uddTex.thickness = thickness;
+            uddTex.width = uddTex.transform.localScale.x;
+        }
+    }
+
+    protected override void Update()
+    {
+        base.Update();
+        if (debugDraw) DebugDraw();
+    }
+
+    void DebugDraw()
+    {
+        // draw the circumference in the scene view.
+        var scale = transform.localScale.x;
+        var center = transform.position - Vector3.forward * radius * scale;
+        for (int i = 0; i < 100; ++i) {
+            var a0 = 2 * Mathf.PI * i / 100;
+            var a1 = 2 * Mathf.PI * (i + 1) / 100;
+            var p0 = center + radius * scale * new Vector3(Mathf.Cos(a0), 0f, Mathf.Sin(a0));
+            var p1 = center + radius * scale * new Vector3(Mathf.Cos(a1), 0f, Mathf.Sin(a1));
+            Debug.DrawLine(p0, p1, Color.red);
+        }
+    }
+}
+

Assets/uDesktopDuplication/Examples/Scripts/MultipleMonitorRoundLayouter.cs.meta

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Assets/uDesktopDuplication/Examples/Scripts/RaycastTest.cs

@@ -0,0 +1,23 @@
+using UnityEngine;
+using System.Collections;
+
+public class RaycastTest : MonoBehaviour
+{
+    public Transform from;
+    public Transform to;
+
+    void Update()
+    {
+        if (!from || !to) return;
+
+        Debug.DrawLine(from.position, to.position, Color.red);
+
+        foreach (var uddTexture in GameObject.FindObjectsOfType<uDesktopDuplication.Texture>()) {
+            var result = uddTexture.RayCast(from.position, to.position - from.position);
+            if (result.hit) {
+                Debug.DrawLine(result.position, result.position + result.normal, Color.yellow);
+                Debug.Log("COORD: " + result.coords + ", DESKTOP: " + result.desktopCoord);
+            }
+        }
+    }
+}

Assets/uDesktopDuplication/Examples/Scripts/RaycastTest.cs.meta

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Assets/uDesktopDuplication/Examples/Scripts/ToggleMonitors.cs

@@ -0,0 +1,19 @@
+using UnityEngine;
+
+public class ToggleMonitors : MonoBehaviour
+{
+    void Update()
+    {
+        if (Input.GetKeyDown(KeyCode.Tab)) {
+            var texture = GetComponent<uDesktopDuplication.Texture>();
+            var id = texture.monitorId;
+            var n = uDesktopDuplication.Manager.monitorCount;
+            if (Input.GetKey(KeyCode.LeftShift) || Input.GetKey(KeyCode.RightShift)) {
+                texture.monitorId = (id - 1 < 0) ? 0 : (id - 1);
+            } else {
+                texture.monitorId = (id + 1 >= n) ? (n - 1) : (id + 1);
+            }
+        }
+    }
+}
+

Assets/uDesktopDuplication/Examples/Scripts/ToggleMonitors.cs.meta

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Assets/uDesktopDuplication/Examples/Scripts/UddSceneManager.cs

@@ -0,0 +1,58 @@
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+public class UddSceneManager : MonoBehaviour
+{
+    public static UddSceneManager instance { get; set; }
+    [SerializeField] string[] scenes;
+    [SerializeField] int sceneNo = 0;
+
+    void Awake()
+    {
+        if (!instance) {
+            instance = this;
+        } else {
+            Destroy(gameObject);
+        }
+    }
+
+    void Start()
+    {
+        DontDestroyOnLoad(gameObject);
+        Load();
+    }
+
+    void Update()
+    {
+        if (Input.GetKeyDown(KeyCode.RightArrow)) {
+            Next();
+        } else if (Input.GetKeyDown(KeyCode.LeftArrow)) {
+            Prev();
+        }
+
+        if (Input.GetKeyDown(KeyCode.R) && (Input.GetKey(KeyCode.LeftControl) || Input.GetKey(KeyCode.RightControl))) {
+            uDesktopDuplication.Manager.instance.Reinitialize();
+        }
+
+        if (Input.GetKeyDown(KeyCode.Escape)) {
+            Application.Quit();
+        }
+    }
+
+    void Next()
+    {
+        sceneNo = (sceneNo + 1) % scenes.Length;
+        Load();
+    }
+
+    void Prev()
+    {
+        sceneNo = (sceneNo + scenes.Length - 1) % scenes.Length;
+        Load();
+    }
+
+    void Load()
+    {
+        SceneManager.LoadScene(scenes[Mathf.Clamp(sceneNo, 0, scenes.Length - 1)]);
+    }
+}

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Assets/uDesktopDuplication/Scripts/Lib.cs

@@ -0,0 +1,239 @@
+using UnityEngine;
+using System;
+using System.Text;
+using System.Runtime.InteropServices;
+
+#pragma warning disable 114, 465
+
+namespace uDesktopDuplication
+{
+
+public enum Message
+{
+    None = -1,
+    Reinitialized = 0,
+    TextureSizeChanged = 1,
+}
+
+public enum CursorShapeType
+{
+    Unspecified = 0,
+    MonoChrome = 1,
+    Color = 2,
+    MaskedColor = 4,
+}
+
+public enum MonitorRotation
+{
+    Unspecified = 0,
+    Identity = 1,
+    Rotate90 = 2,
+    Rotate180 = 3,
+    Rotate270 = 4
+}
+
+public enum MonitorState
+{
+    NotSet = -1,
+    Available = 0,
+    InvalidArg = 1,
+    AccessDenied = 2,
+    Unsupported = 3,
+    CurrentlyNotAvailable = 4,
+    SessionDisconnected = 5,
+    AccessLost = 6,
+    TextureSizeInconsistent = 7,
+    Unknown = 999,
+}
+
+public enum DebugMode
+{
+    None = 0,
+    File = 1,
+    UnityLog = 2, /* currently has bug when app exits. */
+}
+
+[StructLayout(LayoutKind.Sequential)]
+public struct RECT
+{
+    [MarshalAs(UnmanagedType.I4)]
+    public int left;
+    [MarshalAs(UnmanagedType.I4)]
+    public int top;
+    [MarshalAs(UnmanagedType.I4)]
+    public int right;
+    [MarshalAs(UnmanagedType.I4)]
+    public int bottom;
+}
+
+[StructLayout(LayoutKind.Sequential)]
+public struct DXGI_OUTDUPL_MOVE_RECT
+{
+    public RECT source;
+    public RECT destination;
+}
+
+public static class Lib
+{
+    public delegate void MessageHandler(Message message);
+    [UnmanagedFunctionPointer(CallingConvention.Cdecl)]
+    public delegate void DebugLogDelegate(string str);
+
+    [DllImport("uDesktopDuplication")]
+    public static extern bool IsInitialized();
+    [DllImport("uDesktopDuplication")]
+    public static extern void Initialize();
+    [DllImport("uDesktopDuplication")]
+    public static extern void Finalize();
+    [DllImport("uDesktopDuplication")]
+    public static extern void Reinitialize();
+    [DllImport("uDesktopDuplication")]
+    public static extern void Update();
+    [DllImport("uDesktopDuplication")]
+    public static extern Message PopMessage();
+    [DllImport("uDesktopDuplication")]
+    public static extern void EnableDebug();
+    [DllImport("uDesktopDuplication")]
+    public static extern void DisableDebug();
+    [DllImport("uDesktopDuplication")]
+    public static extern void SetDebugMode(DebugMode mode);
+    [DllImport("uDesktopDuplication")]
+    public static extern void SetLogFunc(DebugLogDelegate func);
+    [DllImport("uDesktopDuplication")]
+    public static extern void SetErrorFunc(DebugLogDelegate func);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetMonitorCount();
+    [DllImport("uDesktopDuplication")]
+    public static extern bool HasMonitorCountChanged();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetCursorMonitorId();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetTotalWidth();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetTotalHeight();
+    [DllImport("uDesktopDuplication")]
+    public static extern void SetTimeout(int timeout);
+    [DllImport("uDesktopDuplication")]
+    public static extern IntPtr GetRenderEventFunc();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetId(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern MonitorState GetState(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern void GetName(int id, StringBuilder buf, int len);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetLeft(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetRight(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetTop(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetBottom(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetWidth(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetHeight(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetDpiX(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetDpiY(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern MonitorRotation GetRotation(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern bool IsPrimary(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern bool IsCursorVisible(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetCursorX();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetCursorY();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetCursorShapeWidth();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetCursorShapeHeight();
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetCursorShapePitch();
+    [DllImport("uDesktopDuplication")]
+    public static extern CursorShapeType GetCursorShapeType();
+    [DllImport("uDesktopDuplication")]
+    public static extern void GetCursorTexture(int id, System.IntPtr ptr);
+    [DllImport("uDesktopDuplication")]
+    public static extern int SetTexturePtr(int id, IntPtr ptr);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetMoveRectCount(int id);
+    [DllImport("uDesktopDuplication", EntryPoint = "GetMoveRects")]
+    private static extern IntPtr GetMoveRects_Internal(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern int GetDirtyRectCount(int id);
+    [DllImport("uDesktopDuplication", EntryPoint = "GetDirtyRects")]
+    private static extern IntPtr GetDirtyRects_Internal(int id);
+    [DllImport("uDesktopDuplication", EntryPoint = "GetPixels")]
+    private static extern bool GetPixels_Internal(int id, System.IntPtr ptr, int x, int y, int width, int height);
+    [DllImport("uDesktopDuplication")]
+    public static extern bool HasBeenUpdated(int id);
+    [DllImport("uDesktopDuplication")]
+    public static extern bool UseGetPixels(int id, bool use);
+
+    public static string GetName(int id)
+    {
+        var buf = new StringBuilder(32);
+        GetName(id, buf, buf.Capacity);
+        return buf.ToString();
+    }
+
+    public static DXGI_OUTDUPL_MOVE_RECT[] GetMoveRects(int id)
+    {
+        var count = GetMoveRectCount(id);
+        var rects = new DXGI_OUTDUPL_MOVE_RECT[count];
+        var ptr = GetMoveRects_Internal(id);
+        var size = Marshal.SizeOf(typeof(DXGI_OUTDUPL_MOVE_RECT));
+        for (int i = 0; i < count; ++i) {
+            var data = new IntPtr(ptr.ToInt64() + size * i);
+            rects[i] = (DXGI_OUTDUPL_MOVE_RECT)Marshal.PtrToStructure(data, typeof(DXGI_OUTDUPL_MOVE_RECT));
+        }
+        return rects;
+    }
+
+    public static RECT[] GetDirtyRects(int id)
+    {
+        var count = GetDirtyRectCount(id);
+        var rects = new RECT[count];
+        var ptr = GetDirtyRects_Internal(id);
+        var size = Marshal.SizeOf(typeof(RECT));
+        for (int i = 0; i < count; ++i) {
+            var data = new IntPtr(ptr.ToInt64() + size * i);
+            rects[i] = (RECT)Marshal.PtrToStructure(data, typeof(RECT));
+        }
+        return rects;
+    }
+
+    public static Color32[] GetPixels(int id, int x, int y, int width, int height)
+    {
+        var color = new Color32[width * height];       
+        GetPixels(id, color, x, y, width, height);
+        return color;
+    }
+
+    public static bool GetPixels(int id, Color32[] colors, int x, int y, int width, int height)
+    {
+        if (colors.Length < width * height) {
+            Debug.LogErrorFormat("colors is small.", id, x, y, width, height);
+            return false;
+        }
+		var handle = GCHandle.Alloc(colors, GCHandleType.Pinned);
+		var ptr = handle.AddrOfPinnedObject();
+        if (!GetPixels_Internal(id, ptr, x, y, width, height)) {
+            Debug.LogErrorFormat("GetPixels({0}, {1}, {2}, {3}, {4}) failed.", id, x, y, width, height);
+            return false;
+        }
+        handle.Free();
+        return true;
+    }
+
+    public static Color32 GetPixel(int id, int x, int y)
+    {
+        return GetPixels(id, x, y, 1, 1)[0];
+    }
+}
+
+}

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Assets/uDesktopDuplication/Scripts/Manager.cs

@@ -0,0 +1,258 @@
+using UnityEngine;
+using System.Collections;
+using System.Collections.Generic;
+
+namespace uDesktopDuplication
+{
+
+public class Manager : MonoBehaviour
+{
+    private static Manager instance_;
+    public static Manager instance 
+    {
+        get { return CreateInstance(); }
+    }
+
+    public static Manager CreateInstance()
+    {
+        if (instance_ != null) return instance_;
+
+        var manager = FindObjectOfType<Manager>();
+        if (manager) {
+            instance_ = manager;
+            return manager;
+        }
+
+        var go = new GameObject("uDesktopDuplicationManager");
+        instance_ = go.AddComponent<Manager>();
+        return instance_;
+    }
+
+    private List<Monitor> monitors_ = new List<Monitor>();
+    static public List<Monitor> monitors
+    {
+        get { return instance.monitors_; }
+    }
+
+    static public int monitorCount
+    {
+        get { return Lib.GetMonitorCount(); }
+    }
+
+    static public int cursorMonitorId 
+    {
+        get { return Lib.GetCursorMonitorId(); }
+    }
+
+    static public Monitor primary
+    {
+        get 
+        {
+            return instance.monitors_.Find(monitor => monitor.isPrimary);
+        }
+    }
+
+    [Tooltip("Debug mode is not applied while running.")]
+    [SerializeField] DebugMode debugMode = DebugMode.File;
+
+    [SerializeField] int desktopDuplicationApiTimeout = 0;
+    [SerializeField] float retryReinitializationDuration = 1f;
+
+    private Coroutine renderCoroutine_ = null;
+    private bool shouldReinitialize_ = false;
+    private float reinitializationTimer_ = 0f;
+    private bool isFirstFrame_ = true;
+
+    public static event Lib.DebugLogDelegate onDebugLog = msg => Debug.Log(msg);
+    public static event Lib.DebugLogDelegate onDebugErr = msg => Debug.LogError(msg);
+
+    public delegate void ReinitializeHandler();
+    public static event ReinitializeHandler onReinitialized;
+
+    public static Monitor GetMonitor(int id)
+    {
+        if (id < 0 || id >= Manager.monitors.Count) {
+            Debug.LogErrorFormat("[uDD::Error] there is no monitor whose id is {0}.", id);
+            return Manager.primary;
+        }
+        return monitors[Mathf.Clamp(id, 0, Manager.monitorCount - 1)];
+    }
+
+    void Awake()
+    {
+        // for simple singleton
+
+        if (instance_ == this) {
+            return;
+        }
+
+        if (instance_ != null && instance_ != this) {
+            Destroy(gameObject);
+            return;
+        }
+
+        instance_ = this;
+
+        Lib.SetDebugMode(debugMode);
+        Lib.SetLogFunc(onDebugLog);
+        Lib.SetErrorFunc(onDebugErr);
+
+        Lib.SetTimeout(desktopDuplicationApiTimeout);
+        Lib.Initialize();
+
+        CreateMonitors();
+    }
+
+    void OnApplicationQuit()
+    {
+        Lib.Finalize();
+        DestroyMonitors();
+    }
+
+    void OnEnable()
+    {
+        renderCoroutine_ = StartCoroutine(OnRender());
+        if (!isFirstFrame_) {
+            Reinitialize();
+        }
+
+        Lib.SetDebugMode(debugMode);
+        Lib.SetLogFunc(onDebugLog);
+    }
+
+    void OnDisable()
+    {
+        if (renderCoroutine_ != null) {
+            StopCoroutine(renderCoroutine_);
+            renderCoroutine_ = null;
+        }
+
+        Lib.SetLogFunc(null);
+        Lib.SetErrorFunc(null);
+    }
+
+    void Update()
+    {
+        Lib.Update();
+        ReinitializeIfNeeded();
+        UpdateMessage();
+        isFirstFrame_ = false;
+    }
+
+    [ContextMenu("Reinitialize")]
+    public void Reinitialize()
+    {
+        Debug.Log("[uDD] Reinitialize");
+        Lib.Reinitialize();
+        CreateMonitors();
+        if (onReinitialized != null) {
+            onReinitialized();
+        }
+    }
+
+    void ReinitializeIfNeeded()
+    {
+        bool reinitializeNeeded = false;
+
+        for (int i = 0; i < monitors.Count; ++i) {
+            var monitor = monitors[i];
+            var state = monitor.state;
+            if (
+                state == MonitorState.NotSet ||
+                state == MonitorState.AccessLost || 
+                state == MonitorState.AccessDenied ||
+                state == MonitorState.SessionDisconnected ||
+                state == MonitorState.Unknown
+            ) {
+                reinitializeNeeded = true;
+                break;
+            }
+        }
+
+        if (Lib.HasMonitorCountChanged()) {
+            reinitializeNeeded = true;
+        }
+
+        if (!shouldReinitialize_ && reinitializeNeeded) {
+            shouldReinitialize_ = true;
+            reinitializationTimer_ = 0f;
+        }
+
+        if (shouldReinitialize_) {
+            if (reinitializationTimer_ > retryReinitializationDuration) {
+                Reinitialize();
+                shouldReinitialize_ = false;
+            }
+            reinitializationTimer_ += Time.deltaTime;
+        }
+    }
+
+    void UpdateMessage()
+    {
+        var message = Lib.PopMessage();
+        while (message != Message.None) {
+            Debug.Log("[uDD] " + message);
+            switch (message) {
+                case Message.Reinitialized:
+                    ReinitializeMonitors();
+                    break;
+                case Message.TextureSizeChanged:
+                    RecreateTextures();
+                    break;
+                default:
+                    break;
+            }
+            message = Lib.PopMessage();
+        }
+    }
+
+    IEnumerator OnRender()
+    {
+        for (;;) {
+            yield return new WaitForEndOfFrame();
+            for (int i = 0; i < monitors.Count; ++i) {
+                var monitor = monitors[i];
+                if (monitor.shouldBeUpdated) {
+                    monitor.Render();
+                }
+                monitor.shouldBeUpdated = false;
+            }
+        }
+    }
+
+    void CreateMonitors()
+    {
+        DestroyMonitors();
+        for (int i = 0; i < monitorCount; ++i) {
+            monitors.Add(new Monitor(i));
+        }
+    }
+
+    void DestroyMonitors()
+    {
+        for (int i = 0; i < monitors.Count; ++i) {
+            monitors[i].DestroyTexture();
+        }
+        monitors.Clear();
+    }
+
+    void ReinitializeMonitors()
+    {
+        for (int i = 0; i < monitorCount; ++i) {
+            if (i == monitors.Count) {
+                monitors.Add(new Monitor(i));
+            } else {
+                monitors[i].Reinitialize();
+            }
+        }
+    }
+
+    void RecreateTextures()
+    {
+        for (int i = 0; i < monitorCount; ++i) {
+            monitors[i].CreateTextureIfNeeded();
+        }
+    }
+}
+
+}

Assets/uDesktopDuplication/Scripts/Manager.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 4dccb434f55ebee4f91bfb9935092bbf
+timeCreated: 1477643174
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {fileID: 2800000, guid: 89616e59e1cccb346bd4e959257990ca, type: 3}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/uDesktopDuplication/Scripts/Monitor.cs

@@ -0,0 +1,367 @@
+using UnityEngine;
+
+namespace uDesktopDuplication
+{
+
+public class Monitor
+{
+    public Monitor(int id)
+    {
+        this.id = id;
+
+        switch (state)
+        {
+            case MonitorState.Available:
+                break;
+            case MonitorState.InvalidArg:
+                Debug.LogErrorFormat("[uDD] {0}:{1} => Invalid.", id, name);
+                break;
+            case MonitorState.AccessDenied:
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Access Denied.", id, name);
+                break;
+            case MonitorState.Unsupported:
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Unsupported.", id, name);
+                break;
+            case MonitorState.SessionDisconnected:
+                Debug.LogWarningFormat("[uDD] {0}:{1} => Disconnected.", id, name);
+                break;
+            case MonitorState.NotSet:
+                Debug.LogErrorFormat("[uDD] {0}:{1} => Something wrong.", id, name);
+                break;
+            default:
+                Debug.LogErrorFormat("[uDD] {0}:{1} => Unknown error.", id, name);
+                break;
+        }
+
+        if (dpiX == 0 || dpiY == 0) {
+            Debug.LogWarningFormat("[uDD] {0}:{1} => Could not get DPI", id, name);
+        }
+    }
+
+    ~Monitor()
+    {
+    }
+
+    public int id 
+    { 
+        get; 
+        private set; 
+    }
+
+    public bool exists
+    { 
+        get { return id < Manager.monitorCount; } 
+    }
+
+    public MonitorState state
+    {
+        get { return Lib.GetState(id); }
+    }
+
+    public bool available
+    {
+        get { return state == MonitorState.Available; }
+    }
+
+    public string name
+    { 
+        get { return Lib.GetName(id); }
+    }
+
+    public bool isPrimary
+    { 
+        get { return Lib.IsPrimary(id); }
+    }
+
+    public int left
+    { 
+        get { return Lib.GetLeft(id); }
+    }
+
+    public int right
+    { 
+        get { return Lib.GetRight(id); }
+    }
+
+    public int top
+    { 
+        get { return Lib.GetTop(id); }
+    }
+
+    public int bottom
+    { 
+        get { return Lib.GetBottom(id); }
+    }
+
+    public int width 
+    { 
+        get { return Lib.GetWidth(id); }
+    }
+
+    public int height
+    { 
+        get { return Lib.GetHeight(id); }
+    }
+
+    public int dpiX
+    { 
+        get 
+        {
+            var dpi = Lib.GetDpiX(id); 
+            if (dpi == 0) dpi = 100; // when monitors are duplicated
+            return dpi;
+        }
+    }
+
+    public int dpiY
+    { 
+        get 
+        {
+            var dpi = Lib.GetDpiY(id); 
+            if (dpi == 0) dpi = 100; // when monitors are duplicated
+            return dpi;
+        }
+    }
+
+    public float widthMeter
+    { 
+        get { return width / dpiX * 0.0254f; }
+    }
+
+    public float heightMeter
+    { 
+        get { return height / dpiY * 0.0254f; }
+    }
+
+    public MonitorRotation rotation
+    { 
+        get { return Lib.GetRotation(id); }
+    }
+
+    public float aspect
+    { 
+        get { return (float)width / height; }
+    }
+
+    public bool isHorizontal
+    { 
+        get 
+        {
+            return 
+                (rotation == MonitorRotation.Identity) || 
+                (rotation == MonitorRotation.Rotate180);
+        }
+    }
+
+    public bool isVertical 
+    { 
+        get 
+        {
+            return 
+                (rotation == MonitorRotation.Rotate90) || 
+                (rotation == MonitorRotation.Rotate270);
+        }
+    }
+
+    public bool isCursorVisible
+    { 
+        get { return Lib.IsCursorVisible(id); }
+    }
+
+    public int cursorX
+    { 
+        get { return Lib.GetCursorMonitorId() == id ? Lib.GetCursorX() : -1; }
+    }
+
+    public int cursorY
+    { 
+        get { return Lib.GetCursorMonitorId() == id ? Lib.GetCursorY() : -1; }
+    }
+
+    public int systemCursorX
+    { 
+        get 
+        { 
+            var p = Utility.GetCursorPos();
+            return p.x - left;
+        }
+    }
+
+    public int systemCursorY
+    { 
+        get 
+        { 
+            var p = Utility.GetCursorPos();
+            return p.y - top;
+        }
+    }
+
+    public int cursorShapeWidth
+    { 
+        get { return Lib.GetCursorShapeWidth(); }
+    }
+
+    public int cursorShapeHeight
+    { 
+        get { return Lib.GetCursorShapeHeight(); }
+    }
+
+    public CursorShapeType cursorShapeType
+    { 
+        get { return Lib.GetCursorShapeType(); }
+    }
+
+    public int moveRectCount
+    { 
+        get { return Lib.GetMoveRectCount(id); }
+    }
+
+    public DXGI_OUTDUPL_MOVE_RECT[] moveRects
+    {
+        get { return Lib.GetMoveRects(id); }
+    }
+
+    public int dirtyRectCount
+    { 
+        get { return Lib.GetDirtyRectCount(id); }
+    }
+
+    public RECT[] dirtyRects
+    {
+        get { return Lib.GetDirtyRects(id); }
+    }
+
+    public bool hasBeenUpdated
+    {
+        get { return Lib.HasBeenUpdated(id); }
+    }
+
+    bool useGetPixels_ = false;
+    public bool useGetPixels
+    {
+        get
+        {
+            return useGetPixels_;
+        }
+        set
+        {
+            useGetPixels_ = value;
+            Lib.UseGetPixels(id, value);
+        }
+    }
+
+    public bool shouldBeUpdated
+    {
+        get; 
+        set;
+    }
+
+    private static Texture2D errorTexture_;
+    private static readonly string errorTexturePath = "uDesktopDuplication/Textures/NotAvailable";
+    private Texture2D errorTexture
+    {
+        get 
+        {
+            return errorTexture_ ?? 
+                (errorTexture_ = Resources.Load<Texture2D>(errorTexturePath));   
+        }
+    }
+
+    private Texture2D texture_;
+    private System.IntPtr texturePtr_;
+    public Texture2D texture 
+    {
+        get 
+        { 
+            if (!available) return errorTexture;
+            if (texture_ == null) CreateTextureIfNeeded();
+            return texture_;
+        }
+    }
+
+    public void Render()
+    {
+        if (texture_ && available && texturePtr_ != System.IntPtr.Zero) {
+            Lib.SetTexturePtr(id, texturePtr_);
+            GL.IssuePluginEvent(Lib.GetRenderEventFunc(), id);
+        }
+    }
+
+    public void GetCursorTexture(System.IntPtr ptr)
+    {
+        Lib.GetCursorTexture(id, ptr);
+    }
+
+    public void CreateTextureIfNeeded()
+    {
+        if (!available) return;
+
+        var w = isHorizontal ? width : height;
+        var h = isHorizontal ? height : width;
+        bool shouldCreate = true;
+
+        if (texture_ && texture_.width == w && texture_.height == h) {
+            shouldCreate = false;
+        }
+
+        if (w <= 0 || h <= 0) {
+            shouldCreate = false;
+        }
+
+        if (shouldCreate) {
+            CreateTexture();
+        }
+    }
+
+    void CreateTexture()
+    {
+        DestroyTexture();
+        var w = isHorizontal ? width : height;
+        var h = isHorizontal ? height : width;
+        texture_ = new Texture2D(w, h, TextureFormat.BGRA32, false);
+        texturePtr_ = texture_.GetNativeTexturePtr();
+    }
+
+    public void DestroyTexture()
+    {
+        if (texture_) {
+            Object.Destroy(texture_);
+            texture_ = null;
+            texturePtr_ = System.IntPtr.Zero;
+        }
+    }
+
+    public void Reinitialize()
+    {
+        CreateTextureIfNeeded();
+    }
+
+    public Color32[] GetPixels(int x, int y, int width, int height)
+    {
+        if (!useGetPixels_) {
+            Debug.LogErrorFormat("Please set Monitor[{0}].useGetPixels as true.", id);
+            return null;
+        }
+        return Lib.GetPixels(id, x, y, width, height);
+    }
+
+    public bool GetPixels(Color32[] colors, int x, int y, int width, int height)
+    {
+        if (!useGetPixels_) {
+            Debug.LogErrorFormat("Please set Monitor[{0}].useGetPixels as true.", id);
+            return false;
+        }
+        return Lib.GetPixels(id, colors, x, y, width, height);
+    }
+
+    public Color32 GetPixel(int x, int y)
+    {
+        if (!useGetPixels_) {
+            Debug.LogErrorFormat("Please set Monitor[{0}].useGetPixels as true.", id);
+            return Color.black;
+        }
+        return Lib.GetPixel(id, x, y);
+    }
+}
+
+}

Assets/uDesktopDuplication/Scripts/Monitor.cs.meta

@@ -0,0 +1,12 @@
+fileFormatVersion: 2
+guid: 310590b113d909b43b4ea19702904ac3
+timeCreated: 1477643181
+licenseType: Pro
+MonoImporter:
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {fileID: 2800000, guid: 89616e59e1cccb346bd4e959257990ca, type: 3}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/uDesktopDuplication/Scripts/MouseDrawer.cs

@@ -1,44 +0,0 @@
-using UnityEngine;
-
-namespace uDesktopDuplication
-{
-
-[RequireComponent(typeof(uDesktopDuplication))]
-public class MouseDrawer : MonoBehaviour
-{
-    [SerializeField]
-    Transform cursor;
-    [SerializeField]
-    Vector2 modelScale = Vector2.one;
-    [SerializeField]
-    Vector2 offset = new Vector2(0.5f, 0.5f);
-
-    uDesktopDuplication udd_;
-
-    void OnEnable()
-    {
-        udd_ = GetComponent<uDesktopDuplication>();
-        udd_.onMouseMove += OnMouseMove;
-    }
-
-    void OnDisable()
-    {
-        udd_.onMouseMove -= OnMouseMove;
-    }
-
-    void OnMouseMove(Vector2 pos)
-    {
-        var x = pos.x * modelScale.x * 0.5f;
-        var y = pos.y * modelScale.y * 0.5f;
-        var iy = udd_.invertY ? +1 : -1;
-        var localPos = transform.right * x + iy * transform.up * y;
-
-        var worldPos = transform.TransformPoint(localPos);
-        worldPos += cursor.right * offset.x * cursor.localScale.x;
-        worldPos += -cursor.up * offset.y * cursor.localScale.y;
-
-        cursor.position = worldPos;
-    }
-}
-
-}

Assets/uDesktopDuplication/Scripts/Texture.cs

@@ -0,0 +1,431 @@
+using UnityEngine;
+
+namespace uDesktopDuplication
+{
+
+[AddComponentMenu("uDesktopDuplication/Texture")] 
+public class Texture : MonoBehaviour
+{
+    Monitor monitor_;
+    public Monitor monitor 
+    { 
+        get { return monitor_; }
+        set 
+        { 
+            monitor_ = value;
+            if (monitor_ != null) {
+                material.mainTexture = monitor_.texture;
+                width = transform.localScale.x;
+                rotation = monitor.rotation;
+                invertX = invertX_;
+                invertY = invertY_;
+                useClip = useClip_;
+            }
+        }
+    }
+
+    int lastMonitorId_ = 0;
+    public int monitorId
+    { 
+        get { return monitor.id; }
+        set { monitor = Manager.GetMonitor(value); }
+    }
+
+    [SerializeField] bool invertX_ = false;
+    public bool invertX
+    {
+        get 
+        {
+            return invertX_;
+        }
+        set 
+        {
+            invertX_ = value;
+            if (invertX_) {
+                material.EnableKeyword("INVERT_X");
+            } else {
+                material.DisableKeyword("INVERT_X");
+            }
+        }
+    }
+
+    [SerializeField] bool invertY_ = false;
+    public bool invertY
+    {
+        get 
+        {
+            return invertY_;
+        }
+        set 
+        {
+            invertY_ = value;
+            if (invertY_) {
+                material.EnableKeyword("INVERT_Y");
+            } else {
+                material.DisableKeyword("INVERT_Y");
+            }
+        }
+    }
+
+    public MonitorRotation rotation
+    {
+        get
+        {
+            return monitor.rotation;
+        }
+        private set
+        {
+            switch (value)
+            {
+                case MonitorRotation.Identity:
+                    material.DisableKeyword("ROTATE90");
+                    material.DisableKeyword("ROTATE180");
+                    material.DisableKeyword("ROTATE270");
+                    break;
+                case MonitorRotation.Rotate90:
+                    material.EnableKeyword("ROTATE90");
+                    material.DisableKeyword("ROTATE180");
+                    material.DisableKeyword("ROTATE270");
+                    break;
+                case MonitorRotation.Rotate180:
+                    material.DisableKeyword("ROTATE90");
+                    material.EnableKeyword("ROTATE180");
+                    material.DisableKeyword("ROTATE270");
+                    break;
+                case MonitorRotation.Rotate270:
+                    material.DisableKeyword("ROTATE90");
+                    material.DisableKeyword("ROTATE180");
+                    material.EnableKeyword("ROTATE270");
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+
+    [SerializeField] bool useClip_ = false;
+    public Vector2 clipPos = Vector2.zero;
+    public Vector2 clipScale = new Vector2(0.2f, 0.2f);
+    public bool useClip
+    {
+        get
+        {
+            return useClip_;
+        }
+        set
+        {
+            useClip_ = value;
+            if (useClip_) {
+                material.EnableKeyword("USE_CLIP");
+            } else {
+                material.DisableKeyword("USE_CLIP");
+            }
+        }
+    }
+
+    public bool bend
+    {
+        get 
+        {
+            return material.GetInt("_Bend") != 0;
+        }
+        set 
+        {
+            if (value) {
+                material.EnableKeyword("BEND_ON");
+                material.SetInt("_Bend", 1);
+            } else {
+                material.DisableKeyword("BEND_ON");
+                material.SetInt("_Bend", 0);
+            }
+        }
+    }
+
+    public enum MeshForwardDirection
+    {
+        Y = 0,
+        Z = 1,
+    }
+    public MeshForwardDirection meshForwardDirection
+    {
+        get 
+        {
+            return (MeshForwardDirection)material.GetInt("_Forward");
+        }
+        set 
+        {
+            switch (value) {
+                case MeshForwardDirection.Y:
+                    material.SetInt("_Forward", 0);
+                    material.EnableKeyword("_FORWARD_Y");
+                    material.DisableKeyword("_FORWARD_Z");
+                    break;
+                case MeshForwardDirection.Z:
+                    material.SetInt("_Forward", 1);
+                    material.DisableKeyword("_FORWARD_Y");
+                    material.EnableKeyword("_FORWARD_Z");
+                    break;
+            }
+        }
+    }
+
+    public enum Culling
+    {
+        Off   = 0,
+        Front = 1,
+        Back  = 2,
+    }
+    public Culling culling
+    {
+        get 
+        {
+            return (Culling)material.GetInt("_Cull");
+        }
+        set 
+        {
+            material.SetInt("_Cull", (int)value);
+        }
+    }
+
+    public float radius
+    {
+        get { return material.GetFloat("_Radius"); }
+        set { material.SetFloat("_Radius", value); }
+    }
+
+    public float width
+    {
+        get { return material.GetFloat("_Width"); }
+        set { material.SetFloat("_Width", value); }
+    }
+
+    public float thickness
+    {
+        get { return material.GetFloat("_Thickness"); }
+        set { material.SetFloat("_Thickness", value); }
+    }
+
+    Material material_;
+    public Material material
+    {
+        get
+        {
+            if (Application.isPlaying) {
+                return material_ ?? (material_ = GetComponent<Renderer>().material); // clone
+            } else {
+                return GetComponent<Renderer>().sharedMaterial;
+            }
+        }
+    }
+
+    Mesh mesh
+    {
+        get 
+        { 
+            return GetComponent<MeshFilter>().sharedMesh; 
+        }
+    }
+    public float worldWidth
+    {
+        get
+        {
+            return transform.localScale.x * (mesh.bounds.extents.x * 2f);
+        }
+    }
+    public float worldHeight
+    {
+        get
+        {
+            return transform.localScale.y * (mesh.bounds.extents.y * 2f);
+        }
+    }
+
+    void OnEnable()
+    {
+        if (monitor == null) {
+            monitor = Manager.primary;
+        }
+        Manager.onReinitialized += Reinitialize;
+    }
+
+    void OnDisable()
+    {
+        Manager.onReinitialized -= Reinitialize;
+    }
+
+    void Update()
+    {
+        KeepMonitor();
+        RequireUpdate();
+        UpdateMaterial();
+    }
+
+    void KeepMonitor()
+    {
+        if (monitor == null) {
+            Reinitialize();
+        } else {
+            lastMonitorId_ = monitorId;
+        }
+    }
+
+    void RequireUpdate()
+    {
+        monitor.shouldBeUpdated = true;
+    }
+
+    void Reinitialize()
+    {
+        // Monitor instance is released here when initialized.
+        monitor = Manager.GetMonitor(lastMonitorId_);
+    }
+
+    void UpdateMaterial()
+    {
+        width = transform.localScale.x;
+        rotation = monitor.rotation;
+        material.SetVector("_ClipPositionScale", new Vector4(clipPos.x, clipPos.y, clipScale.x, clipScale.y));
+    }
+
+    public Vector3 GetWorldPositionFromCoord(Vector2 coord)
+    {
+        return GetWorldPositionFromCoord((int)coord.x, (int)coord.y);
+    }
+
+    public Vector3 GetWorldPositionFromCoord(int u, int v)
+    {
+        // Local position (scale included).
+        var x =  (float)(u - monitor.width  / 2) / monitor.width;
+        var y = -(float)(v - monitor.height / 2) / monitor.height;
+        var localPos = new Vector3(worldWidth * x, worldHeight * y, 0f);
+
+        // Bending
+        if (bend) {
+            var angle = localPos.x / radius;
+            if (meshForwardDirection == MeshForwardDirection.Y) {
+                localPos.y -= radius * (1f - Mathf.Cos(angle));
+            } else {
+                localPos.z -= radius * (1f - Mathf.Cos(angle));
+            }
+            localPos.x  = radius * Mathf.Sin(angle);
+        }
+
+        // To world position
+        return transform.position + (transform.rotation * localPos);
+    }
+
+    public struct RayCastResult
+    {
+        public bool hit;
+        public Texture texture;
+        public Vector3 position;
+        public Vector3 normal;
+        public Vector2 coords;
+        public Vector2 desktopCoord;
+    }
+
+    static readonly RayCastResult raycastFailedResult = new RayCastResult {
+        hit          = false,
+        texture      = null,
+        position     = Vector3.zero,
+        normal       = Vector3.forward,
+        coords       = Vector2.zero,
+        desktopCoord = Vector2.zero,
+    };
+
+    // This function can be used only for vertical (= MeshForwardDirection.Z) plane.
+    public RayCastResult RayCast(Vector3 from, Vector3 dir)
+    {
+        var r = radius;
+        var center = transform.position - transform.forward * r;
+
+        // Localize the start point of the ray and the direction.
+        var trs = Matrix4x4.TRS(center, transform.rotation, Vector3.one);
+        var invTrs = trs.inverse;
+        Vector3 localFrom = invTrs.MultiplyPoint3x4(from);
+        Vector3 localDir = invTrs.MultiplyVector(dir).normalized;
+
+        // Calculate the intersection points of circle and line on the X-Z plane.
+        var a = localDir.z / localDir.x;
+        var b = localFrom.z - a * localFrom.x;
+
+        var aa = a * a;
+        var bb = b * b;
+        var ab = a * b;
+        var rr = r * r;
+
+        var s = aa * rr - bb + rr;
+        if (s < 0f) {
+            return raycastFailedResult;
+        }
+        s = Mathf.Sqrt(s);
+
+        var t = aa + 1;
+
+        var lx0 = (-s - ab) / t;
+        var lz0 = (b - a * s) / t;
+        var to0 = new Vector3(lx0, 0f, lz0);
+
+        var lx1 = (s - ab) / t;
+        var lz1 = (a * s + b) / t;
+        var to1 = new Vector3(lx1, 0f, lz1);
+
+        var to = (Vector3.Dot(localDir, to0) > 0f) ? to0 : to1;
+
+        // Check if the point is inner angle of mesh width.
+        var toAngle = Mathf.Atan2(to.x, to.z);
+        var halfWidthAngle = (worldWidth / radius) * 0.5f;
+        if (Mathf.Abs(toAngle) > halfWidthAngle) {
+            return raycastFailedResult;
+        }
+
+        // Calculate the intersection points on XZ-Y plane.
+        var v = to - localFrom;
+        var l = Mathf.Sqrt(Mathf.Pow(v.x, 2f) + Mathf.Pow(v.z, 2f));
+        var ly = localFrom.y + l * localDir.y / Mathf.Sqrt(Mathf.Pow(localDir.x, 2f) + Mathf.Pow(localDir.z, 2f));
+
+        // Check if the point is inner mesh height.
+        var halfHeight = worldHeight * 0.5f;
+        if (Mathf.Abs(ly) > halfHeight) {
+            return raycastFailedResult;
+        }
+
+        // Check hit position is in the range of the ray.
+        to.y = ly;
+        var hitPos = trs.MultiplyPoint(to);
+
+        if ((hitPos - from).magnitude > dir.magnitude) {
+            return raycastFailedResult;
+        }
+
+        // Calculate coordinates.
+        var coordX = toAngle / halfWidthAngle * 0.5f;
+        var coordY = ly / halfHeight * 0.5f;
+        int desktopX = monitor.left + (int)((coordX + 0.5f) * monitor.width);
+        int desktopY = monitor.top + (int)((0.5f - coordY) * monitor.height);
+
+        // Calculate normal.
+        var normal = new Vector3(-to.x, 0f, -to.z);
+
+        // Result
+        return new RayCastResult {
+            hit = true,
+            texture = this,
+            position = trs.MultiplyPoint(to),
+            normal = trs.MultiplyVector(normal).normalized,
+            coords = new Vector2(coordX, coordY),
+            desktopCoord = new Vector2(desktopX, desktopY)
+        };
+    }
+
+    public static RayCastResult RayCastAll(Vector3 from, Vector3 dir)
+    {
+        foreach (var uddTexture in GameObject.FindObjectsOfType<uDesktopDuplication.Texture>()) {
+            var result = uddTexture.RayCast(from, dir);
+            if (result.hit) return result;
+        }
+        return raycastFailedResult;
+    }
+}
+
+}