Bangun Dasar Grafika

#include <GL/glut.h>
#include <windows.h>
#include <GL/gl.h>
void init (void) {
glClearColor (1.0, 1.0, 1.0, 0.0);
glLineWidth (1.0);
glColor3f (1.0, 0.0, 0.0);
glOrtho (-6,6, -6,6, -6,6);
}
void Display (void) {
glClear (GL_COLOR_BUFFER_BIT);
glBegin (GL_LINES);
glVertex2f (-5.5, 0.0);
glColor3f (1.0, 0.0, 0.0);
glVertex2f (5.5, 0.0);
glEnd ();
glBegin (GL_LINES);
glVertex2f (0.0, -5.5);
glColor3f (1.0, 0.0, 0.0);
glVertex2f (0.0, 5.5);
glEnd ();


glBegin (GL_LINE_LOOP);
glColor3f (-1.0, 0.0, 0.0);
glVertex2f (1.0, 1.0);
glColor3f (-1.0, 0.0, 0.0);
glVertex2f (4.0, 1.0);
glColor3f (0.0, 1.0, 0.0);
glVertex2f (1.0, 5.0);
glEnd ();
glutSwapBuffers ();
}
int main (int argc, char** argv) {
glutInit (&argc, argv);
glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB);
glutInitWindowPosition (0, 0);
glutInitWindowSize (1500, 1500);
glutCreateWindow ("Bangun Dasar Grafik (Rian Umri)");
init ();
glutDisplayFunc (Display);
glutMainLoop ();
return 0;
}