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| unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs,opengl12, ExtCtrls;
type
TForm1 = class(TForm)
MainTimer: TTimer;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormPaint(Sender: TObject);
procedure draw;
procedure FormResize(Sender: TObject);
private
fdc: HDC;
frc: HGLRC;
an: TGLFloat;
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.FormCreate(Sender: TObject);
var dummy: Hpalette;
begin
if not initopengl then raise exception.Create('Fehler beim Initialisieren!');
fdc := Getdc(handle);
frc:= Createrenderingcontext(fdc,[opdoublebuffered],32,0,0,0,0,dummy);
ActivateRenderingContext(fdc,frc);
glClearColor(0.0, 0.0, 0.0, 0.0); // Black Background
glShadeModel(GL_SMOOTH); // Enables Smooth Color Shading
glClearDepth(1.0); // Depth Buffer Setup
glEnable(GL_DEPTH_TEST); // Enable Depth Testing
end;
procedure TForm1.FormDestroy(Sender: TObject);
begin
DeactivateRenderingContext();
DestroyrenderingContext(frc);
closeopengl;
end;
procedure TForm1.FormPaint(Sender: TObject);
begin
draw;
end;
procedure TForm1.draw;
begin
glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
gltranslatef(0,0,-6);
glbegin(gl_triangles);
glvertex3f(0.0,0.0,0.0);
glvertex3f(0.5,1.0,0.0);
glvertex3f(1.0,0.0,0.0);
glend;
swapbuffers(fdc);
end;
procedure TForm1.FormResize(Sender: TObject);
begin
glViewport(0, 0, Width, Height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity;
gluPerspective(35, Width / Height, 1, 100);
end;
end. |
