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From IrrlichtSharp

In this tutorial we will learn how to use ILS to render to a resizeable window without the risk of distortion. This would be useful for a windowed map editor or just about any other windowed application using 3D graphics.

We will assume that the reader...

• knows how to program in C#
• has downloaded all necessary assemblies
• knows how to initialize and use the rudimentary functions of the ILS Engine
• has a sense of humor
• you'll need it
• trust me

First, create a new class that is derived from the Microsoft.Windows.Form class. Either do it manually or use the Visual Studio Project Template "Windows Application". I don't want to hear any grumbling about Microsoft or Windows. (You're coding in C# for crying out loud!)

For fields you will need:

   IlsDevice device
   
   bool windowResized = false; // Notifies the rendering loop that we need to resize

You will need to utilize your form's "Resize", "Move", and "Shown" events. The Resize and Move events should set

   windowResized = true

and the Shown event should run the rendering loop.

The rendering loop should look something like this...

   VideoDriver driver = device.VideoDriver;
   SceneManager smgr = device.SceneManager;
   if (driver == null) return;
   do
   {
       windowResized = false;
       while (device.Run() && windowResized == false)
       {
           if (device.IsWindowActive())
           {
               driver.BeginScene(Color.Blue);
               smgr.SceneManager.DrawAll();
               driver.EndScene();
           }
       }
       driver.OnResize(ClientSize);
       smgr.ActiveCamera.ChangeAspectRatio();
   } while (windowResized);

And there you have it. Thought this would be hard did you? You should be just about ready to design your own MMORPG... or not.

Submitted by: Valnarus 16:07, 24 Oct 07 (CST)