add clipping function and the example.

Assets/uDesktopDuplication/Scripts/Cursor.cs

@@ -60,9 +60,8 @@ public class Cursor : MonoBehaviour
 
     void UpdateMaterial()
     {
-        bool isVisible = monitor.isCursorVisible;
-        var x = isVisible ? (float)monitor.cursorX / monitor.width : -9999f;
-        var y = isVisible ? (float)monitor.cursorY / monitor.height : -9999f;
+        var x = monitor.isCursorVisible ? (float)monitor.cursorX / monitor.width : -9999f;
+        var y = monitor.isCursorVisible ? (float)monitor.cursorY / monitor.height : -9999f;
         var w = (float)monitor.cursorShapeWidth  / monitor.width;
         var h = (float)monitor.cursorShapeHeight / monitor.height;
         uddTexture_.material.SetVector("_CursorPositionScale", new Vector4(x, y, w, h));

Assets/uDesktopDuplication/Scripts/Lib.cs

@@ -56,6 +56,8 @@ public static class Lib
     [DllImport("uDesktopDuplication")]
     public static extern int GetMonitorCount();
     [DllImport("uDesktopDuplication")]
+    public static extern int GetCursorMonitorId();
+    [DllImport("uDesktopDuplication")]
     public static extern int GetTotalWidth();
     [DllImport("uDesktopDuplication")]
     public static extern int GetTotalHeight();

Assets/uDesktopDuplication/Scripts/Manager.cs

@@ -38,6 +38,11 @@ public class Manager : MonoBehaviour
         get { return Lib.GetMonitorCount(); }
     }
 
+    static public int cursorMonitorId 
+    {
+        get { return Lib.GetCursorMonitorId(); }
+    }
+
     static public Monitor primary
     {
         get 

Assets/uDesktopDuplication/Scripts/Monitor.cs

@@ -196,7 +196,7 @@ public class Monitor
         Lib.GetCursorTexture(id, ptr);
     }
 
-    void CreateTexture()
+    public void CreateTexture()
     {
         if (!available) return;
 

Assets/uDesktopDuplication/Scripts/Texture.cs

@@ -24,9 +24,15 @@ public class Texture : MonoBehaviour
         set { monitor = Manager.monitors[Mathf.Clamp(value, 0, Manager.monitorCount - 1)]; }
     }
 
+    [Header("Invert UVs")]
     public bool invertX = false;
     public bool invertY = false;
 
+    [Header("Clip")]
+    public bool useClip = false;
+    public Vector2 clipPos = Vector2.zero;
+    public Vector2 clipScale = new Vector2(0.2f, 0.2f);
+
     public Material material
     {
         get;
@@ -55,6 +61,13 @@ public class Texture : MonoBehaviour
     }
 
     void UpdateMaterial()
+    {
+        Invert();
+        Rotate();
+        Clip();
+    }
+
+    void Invert()
     {
         if (invertX) {
             material.EnableKeyword("INVERT_X");
@@ -67,7 +80,10 @@ public class Texture : MonoBehaviour
         } else {
             material.DisableKeyword("INVERT_Y");
         }
+    }
 
+    void Rotate()
+    {
         switch (monitor.rotation)
         {
             case MonitorRotation.Identity:
@@ -94,6 +110,16 @@ public class Texture : MonoBehaviour
                 break;
         }
     }
+
+    void Clip()
+    {
+        if (useClip) {
+            material.EnableKeyword("USE_CLIP");
+            material.SetVector("_ClipPositionScale", new Vector4(clipPos.x, clipPos.y, clipScale.x, clipScale.y));
+        } else {
+            material.DisableKeyword("USE_CLIP");
+        }
+    }
 }
 
 }