Trying to make a 2nd camera viewport follow a GUI.Window

I suspect that you're not adjusting the viewport accordingly. I edited the DragWindow example, added a viewport adjustment code and attached the script to the second camera, and it worked fine (and without any lag!):

var wRect : Rect = Rect (20, 20, 300, 350);

function OnGUI () { // Register the window. wRect = GUI.Window (0, wRect, DoMyWindow, "My Window"); // clamp wRect to the screen: wRect.x = Mathf.Clamp(wRect.x, 0, Screen.width-wRect.width); wRect.y = Mathf.Clamp(wRect.y, 0, Screen.height-wRect.height); }

// Make the contents of the window function DoMyWindow (windowID : int) { // Make a very long rect that is 20 pixels tall. // This will make the window be resizable by the top // title bar - no matter how wide it gets. GUI.DragWindow (Rect (0,0, 10000, 20));

 // viewport adjustment code:
 var w = Screen.width;
 var h = Screen.height;
 var rect = wRect; // make a copy of the window rect...
 rect.y += 20; // add the top margin...
 rect.x += 10; // add the left margin...
 rect.width -= 20; // adjust width to include left + right margins...
 rect.height -= 30; // adjust height to include top + down margins... 
 // set the camera viewport size:
 camera.rect = Rect(rect.x/w, (h-rect.y-rect.height)/h, rect.width/w, rect.height/h);

}

EDITED: If you just want a still image, it can be done in the indie version too: use GetPixels to get the second camera image from the screen, then disable the camera and display the window with the image acquired (2nd camera script):

var rGui = Rect(20, 20, 300, 350); // GUI window coordinates var lftMargin = 6; // margins var rgtMargin = 6; var topMargin = 20; var botMargin = 5; private var switchTime = 2; // time to acquire the image private var tex: Texture2D; private var rect: Rect; private var rTex: Rect;

function Start(){ rect.x = rGui.x + lftMargin; rect.y = Screen.height - (rGui.y + rGui.height) + botMargin; rect.width = rGui.width - (lftMargin + rgtMargin); rect.height = rGui.height - (topMargin + botMargin); camera.pixelRect = rect; tex = new Texture2D(rect.width, rect.height, TextureFormat.RGB24, false); rTex = rect; rTex.x = lftMargin; rTex.y = topMargin; }

function Update(){ if (switchTime > 0){ switchTime -= Time.deltaTime; if (switchTime

function OnGUI(){ if (switchTime

function PaintWindow (windowID : int) { GUI.DragWindow (Rect (0,0, 10000, 20)); GUI.DrawTexture(rTex, tex); }