TUTORIAL MEMBUAT SEGITIGA BERTINGKAT

#include <windows.h>                               // digunakan oleh sistem 

#include <gl/Gl.h>

#include <gl/glut.h>

//<<<<<<<<<<<<<<<<<<<<<<< myInit >>>>>>>>>>>>>>>>>>>>

void myInit(void)

 {

    glClearColor(1.0,1.0,1.0,0.0);       // membuat latar belakang putih

    glColor3f(0.0f, 0.0f, 0.0f);            // membuat warna gambar hitam

  glPointSize(4.0);                // ukuran titik 4 x 4 pixel

glMatrixMode(GL_PROJECTION); 

glLoadIdentity();

gluOrtho2D(0.0, 1000.0, 0.0, 1000.0);

}

//<<<<<<<<<<<<<<<<<<<<<<<< myDisplay >>>>>>>>>>>>>>>>>

void myDisplay(void)

{

glClear(GL_COLOR_BUFFER_BIT);     // hapus layar

    glColor3f(0.0f,1.0f,1.0f);                           //segitiga bawah1

glBegin(GL_POLYGON);

glVertex2i(100, 100);        

glVertex2i(200, 300);        

glVertex2i(300, 100);        

       

glEnd();

    glColor3f(0.0f,0.0f,0.0f); 

glBegin(GL_LINE_LOOP);

glVertex2i(100, 100);        

glVertex2i(200, 300);        

glVertex2i(300, 100);      

glEnd();

    glColor3f(0.0f,1.0f,1.0f);

    glBegin(GL_POLYGON);                      //segitiga bwah2

glVertex2i(300, 100);        

glVertex2i(400, 300);        

glVertex2i(500, 100);        

glEnd();

    glColor3f(0.0f,0.0f,0.0f);

glBegin(GL_LINE_LOOP); 

glVertex2i(300, 100);        

glVertex2i(400, 300);        

glVertex2i(500, 100);        

glEnd();

    glColor3f(0.0f,1.0f,1.0f);

glBegin(GL_POLYGON);                  //segitiga bwah3

glVertex2i(500, 100);        

glVertex2i(600, 300);        

glVertex2i(700, 100);        

       

glEnd();

glColor3f(0.0f,0.0f,0.0f);

glBegin(GL_LINE_LOOP);

glVertex2i(500, 100);        

glVertex2i(600, 300);        

glVertex2i(700, 100);          

glEnd();

    glColor3f(0.0f,1.0f,1.0f);                          //segitiga tengah1

glBegin(GL_POLYGON);

glVertex2i(200, 300);        

glVertex2i(300, 500);        

glVertex2i(400, 300);        

       

glEnd();

    glColor3f(0.0f,0.0f,0.0f); 

glBegin(GL_LINE_LOOP);

glVertex2i(200, 300);        

glVertex2i(300, 500);        

glVertex2i(400, 300);        

             

glEnd();

glColor3f(0.0f,1.0f,1.0f);                            //segitiga tengah2

glBegin(GL_POLYGON);

glVertex2i(400, 300);        

glVertex2i(500, 500);        

glVertex2i(600, 300);        

       

glEnd();

    glColor3f(0.0f,0.0f,0.0f); 

glBegin(GL_LINE_LOOP);

glVertex2i(400, 300);        

glVertex2i(500, 500);        

glVertex2i(600, 300);        

             

glEnd();

glColor3f(0.0f,1.0f,1.0f);                            //segitiga atas

glBegin(GL_POLYGON);

glVertex2i(300, 500);        

glVertex2i(400, 700);        

glVertex2i(500, 500);        

       

glEnd();

    glColor3f(0.0f,0.0f,0.0f); 

glBegin(GL_LINE_LOOP);

glVertex2i(300, 500);        

glVertex2i(400, 700);        

glVertex2i(500, 500);        

       

glEnd();

glFlush();                                                       // mengirim semua output ke layar 

}

//<<<<<<<<<<<<<<<<<<<<<<<< main >>>>>>>>>>>>>>>>>>>>>>

int main(int argc, char** argv)

{

glutInit(&argc, argv) ;                                         // inisialisasi  toolkit

glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);    // set modus display

glutInitWindowSize(640,480);                           // set ukuran window 

glutInitWindowPosition(100, 150);                      // set posisi window di layar

                                          // acuan sudut kiri-atas

glutCreateWindow("SEGITIGA BERTINGKAT)");      //  buka screen window

glutDisplayFunc(myDisplay);                         //   registrasi fungsi menggambr

myInit();                   

glutMainLoop();                                        // berulang terus-menerus

}