Opentk/Source/Examples/Tutorial/T07_DisplayLists_Cube.cs

169 lines
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4.2 KiB
C#

#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
#region --- Using Directives ---
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using OpenTK.OpenGL;
using Enums = OpenTK.OpenGL.GL.Enums;
using OpenTK;
using System.Threading;
#endregion --- Using Directives ---
namespace Examples.Tutorial
{
public partial class T07_DisplayLists_Cube : GameWindow, IExample
{
#region --- Variables ---
List<DisplayList> lists = new List<DisplayList>();
#endregion --- Variables ---
#region --- Constructors ---
public T07_DisplayLists_Cube()
{
this.CreateWindow(new OpenTK.Platform.DisplayMode(800, 600));
//Text =
// "DisplayLists example (" +
// GL.GetString(Enums.StringName.RENDERER) + " " +
// GL.GetString(Enums.StringName.VERSION)
// + ")";
GL.ClearColor(0.1f, 0.1f, 0.5f, 0.0f);
GL.Enable(Enums.EnableCap.DEPTH_TEST);
// Build some display lists.
float c = 0;
const int numDisplayLists = 9;
for (int i = numDisplayLists; i > 0; i--)
{
DisplayList d = new DisplayList();
d.Begin();
GL.Color3(
1.0,
c,
1 - c
);
GL.Begin(Enums.BeginMode.QUADS);
GL.Vertex3(-1.0f, -1.0f, 1.0f);
GL.Vertex3( 1.0f, -1.0f, 1.0f);
GL.Vertex3( 1.0f, 1.0f, 1.0f);
GL.Vertex3(-1.0f, 1.0f, 1.0f);
GL.End();
d.End();
lists.Add(d);
c += 1 / (float)numDisplayLists;
}
OnResize(new OpenTK.Platform.ResizeEventArgs(this.Width, this.Height));
}
#endregion
#region public void Launch()
/// <summary>
/// Launches this example.
/// </summary>
/// <remarks>
/// Provides a simple way for the example launcher to launch the examples.
/// </remarks>
public void Launch()
{
Run();
}
#endregion
#region --- Event Handlers ---
#region OnResize
protected override void OnResize(OpenTK.Platform.ResizeEventArgs e)
{
base.OnResize(e);
GL.Viewport(0, 0, Width, Height);
double ratio = 0.0;
ratio = this.Width / (double)this.Height;
GL.MatrixMode(Enums.MatrixMode.PROJECTION);
GL.LoadIdentity();
Glu.Perspective(45.0, ratio, 1.0, 64.0);
Glu.LookAt(
0.0, 0.0, 16.0,
0.0, 0.0, 0.0,
0.0, 1.0, 0.0
);
}
#endregion
#region OnUpdateFrame
public override void OnUpdateFrame(EventArgs e)
{
base.OnUpdateFrame(e);
if (Keyboard[0][OpenTK.Input.Key.Escape])
{
this.Exit();
}
}
#endregion
#region OnRenderFrame
public override void OnRenderFrame(EventArgs e)
{
base.OnRenderFrame(e);
GL.MatrixMode(Enums.MatrixMode.MODELVIEW);
GL.LoadIdentity();
GL.Clear(Enums.ClearBufferMask.COLOR_BUFFER_BIT | Enums.ClearBufferMask.DEPTH_BUFFER_BIT);
double angle = 0.0;
foreach (DisplayList d in lists)
{
GL.LoadIdentity();
GL.Rotated(angle, 0.0, 0.0, 1.0);
GL.Translated(5.0, 0.0, 0.0);
d.Render();
angle += 360 / lists.Count;
}
Context.SwapBuffers();
Thread.Sleep(0);
}
#endregion
#endregion --- Event Handlers ---
}
}