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Rewrote from scratch, using direct OpenGL methods. Added OnUnload override to cleanup resources.

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This commit is contained in:
the_fiddler 2007-09-26 23:14:50 +00:00
parent 9aaa45ace2
commit e99d642792
1 changed files with 45 additions and 55 deletions
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100
Source/Examples/Tutorial/T07_Display_Lists_Flower.cs
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@ -25,70 +25,79 @@ namespace Examples.Tutorial
{
public class T07_Display_Lists_Flower : GameWindow, IExample
{
#region --- Variables ---
#region --- Fields ---
List<DisplayList> lists = new List<DisplayList>();
const int num_lists = 9;
int[] lists = new int[num_lists];
#endregion --- Variables ---
#endregion
#region --- Constructors ---
public T07_Display_Lists_Flower()
: base(new DisplayMode(800, 600), "OpenTK | T07: Display Lists")
{
this.CreateWindow(new DisplayMode(800, 600));
//Text =
// "DisplayLists example (" +
// GL.GetString(Enums.StringName.RENDERER) + " " +
// GL.GetString(Enums.StringName.VERSION)
// + ")";
}
#endregion
#region OnLoad
public override void OnLoad(EventArgs e)
{
GL.ClearColor(0.1f, 0.1f, 0.5f, 0.0f);
GL.Enable(Enums.EnableCap.DEPTH_TEST);
GL.MatrixMode(Enums.MatrixMode.MODELVIEW);
GL.LoadIdentity();
// Build some display lists.
int first_list = GL.GenLists(num_lists);
float c = 0;
const int numDisplayLists = 9;
for (int i = numDisplayLists; i > 0; i--)
for (int i = 0; i < num_lists; i++)
{
DisplayList d = new DisplayList();
lists[i] = first_list + i;
GL.NewList(first_list + i, Enums.ListMode.COMPILE);
d.Begin();
GL.Color3(1.0, c, 1 - c);
GL.Color3(
1.0,
c,
1 - c
);
GL.PushMatrix();
GL.Rotate(c * 360.0f, 0.0, 0.0, 1.0);
GL.Translate(5.0, 0.0, 0.0);
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.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();
GL.PopMatrix();
lists.Add(d);
GL.EndList();
c += 1 / (float)numDisplayLists;
c += 1 / (float)num_lists;
}
OnResize(new OpenTK.Platform.ResizeEventArgs(this.Width, this.Height));
}
#endregion
#endregion
#region --- Event Handlers ---
#region OnUnload
public override void OnUnload(EventArgs e)
{
GL.DeleteLists(lists[0], num_lists);
}
#endregion
#region OnResize
protected override void OnResize(OpenTK.Platform.ResizeEventArgs e)
{
base.OnResize(e);
GL.Viewport(0, 0, Width, Height);
double ratio = 0.0;
@ -97,11 +106,6 @@ namespace Examples.Tutorial
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
@ -110,8 +114,6 @@ namespace Examples.Tutorial
public override void OnUpdateFrame(UpdateFrameEventArgs e)
{
base.OnUpdateFrame(e);
if (Keyboard[OpenTK.Input.Key.Escape])
{
this.Exit();
@ -124,33 +126,21 @@ namespace Examples.Tutorial
public override void OnRenderFrame(RenderFrameEventArgs e)
{
base.OnRenderFrame(e);
GL.MatrixMode(Enums.MatrixMode.MODELVIEW);
GL.LoadIdentity();
Glu.LookAt(
0.0, 0.0, 16.0,
0.0, 0.0, 0.0,
0.0, 1.0, 0.0);
GL.Clear(Enums.ClearBufferMask.COLOR_BUFFER_BIT | Enums.ClearBufferMask.DEPTH_BUFFER_BIT);
GL.CallLists(num_lists, Enums.ListNameType.INT, lists);
double angle = 0.0;
foreach (DisplayList d in lists)
{
GL.LoadIdentity();
GL.Rotate(angle, 0.0, 0.0, 1.0);
GL.Translate(5.0, 0.0, 0.0);
d.Render();
angle += 360 / lists.Count;
}
Context.SwapBuffers();
Thread.Sleep(0);
SwapBuffers();
}
#endregion
#endregion --- Event Handlers ---
#region public void Launch()
/// <summary>