Gambar Sederhana 2D OpenGL

Grafika Komputer 

Created By : Ahmad Asif Qolbi

Deskripsi Objek :

            Gambar 2 dimensi ini merupakan gambaran lingkungan Universitas Negeri Semarang pada malam hari. Dimana lingkungan sekitar terdapat banyak pepohonan yang membuat udara sejuk dan nyaman tanpa ada polusi udara. Pemandangan tersebut terlihat dari kampus Unnes dimana terlihat jalan yang mengarah ke atas menuju Universitas Negeri Semarang. Unnes adalah kampus konservasi, dimana kampus konservasi adalah kampus yang peduli terhadap lingkungan yang hijau dikelilingi banyak pohon di kawasan kampus.

            Gambar ini sangat memperdulikan keselarasan warna dengan tema sehingga membuat gambar 2dimensi ini terlihat nyaman untuk dilihat. Gambar ini identik dengan kampus Universitas Negeri Semarang yang terletak di daerah pegunungan serta banyaknya pepohonan yang ada di kawasan sekitar Unnes sehingga kampus Unnes tampak sangat asri.

Source Code :

#include<GL/glut.h>

#include<stdlib.h>

void display(){

   glClear( GL_COLOR_BUFFER_BIT);

   glPointSize(8);

   glLineWidth(3);

//huruf u

glBegin(GL_POLYGON);

                         glVertex2f(-0.9,0.7);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(-0.8,0.7);

                         glVertex2f(-0.8,0.2);

                         glColor3f(0.0,0.0,1.0);

                         glVertex2f(-0.9,0.2);

     glEnd();

   glBegin(GL_POLYGON);

                         glVertex2f(-0.8,0.3);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(-0.8,0.3);

                         glVertex2f(-0.6,0.2);

                         glVertex2f(-0.8,0.2);

     glEnd();

     glBegin(GL_POLYGON);

                         glVertex2f(-0.7,0.7);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(-0.6,0.7);

                         glVertex2f(-0.6,0.2);

                         glColor3f(0.0,0.0,1.0);

                         glVertex2f(-0.7,0.2);

     glEnd();

// huruf n1

     glBegin(GL_POLYGON);

                         glVertex2f(-0.5,0.7);

                         glColor3f(1.0,0.0,0.0);

                         glVertex2f(-0.4,0.7);

                         glColor3f(1.0,0.0,1.0);

                         glVertex2f(-0.4,0.2);

                         glVertex2f(-0.5,0.2);

     glEnd();

     glBegin(GL_POLYGON);

                         glVertex2f(-0.4,0.7);

                         glColor3f(1.0,1.5,0.0);

                         glVertex2f(-0.4,0.5);

                          glVertex2f(-0.2,0.2);

                         glVertex2f(-0.2,0.2);

     glEnd();

      glBegin(GL_POLYGON);

                         glVertex2f(-0.3,0.7);

                         glColor3f(0.0,0.5,1.0);

                         glVertex2f(-0.2,0.7);

                         glColor3f(1.0,0.0,1.0);

                         glVertex2f(-0.2,0.2);

                         glVertex2f(-0.3,0.2);

     glEnd();

     // huruf n2

glBegin(GL_POLYGON);

                         glVertex2f(-0.1,0.7);

                         glColor3f(1.0,0.0,0.0);

                         glVertex2f(0.0,0.7);

                         glColor3f(1.0,0.0,1.0);

                         glVertex2f(0.0,0.2);

                         glVertex2f(-0.1,0.2);

     glEnd();

     glBegin(GL_POLYGON);

                         glVertex2f(0.0,0.7);

                         glColor3f(1.0,1.5,0.0);

                         glVertex2f(0.0,0.5);

                          glVertex2f(0.2,0.2);

                         glVertex2f(0.2,0.2);

     glEnd();

      glBegin(GL_POLYGON);

                         glVertex2f(0.1,0.7);

                         glColor3f(0.0,0.5,1.0);

                         glVertex2f(0.2,0.7);

                         glColor3f(1.0,0.0,1.0);

                         glVertex2f(0.2,0.2);

                         glVertex2f(0.1,0.2);

     glEnd();

// huruf e

glBegin(GL_POLYGON);

                         glVertex2f(0.3,0.3);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(0.5,0.3);

                         glVertex2f(0.5,0.2);

                         glVertex2f(0.3,0.2);

     glEnd();

     glBegin(GL_POLYGON);

                         glVertex2f(0.3,0.7);

                         glColor3f(1.0,0.0,0.0);

                         glVertex2f(0.4,0.7);

                         glColor3f(1.0,0.0,1.0);

                         glVertex2f(0.4,0.2);

                         glVertex2f(0.3,0.2);

     glEnd();

     glBegin(GL_POLYGON);

                         glVertex2f(0.3,0.7);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(0.5,0.7);

                         glVertex2f(0.5,0.6);

                         glVertex2f(0.3,0.6);

     glEnd();

     glBegin(GL_POLYGON);

                         glVertex2f(0.3,0.5);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(0.5,0.5);

                         glVertex2f(0.5,0.4);

                         glVertex2f(0.3,0.4);

     glEnd();

     // huruf s

glBegin(GL_POLYGON);

                         glVertex2f(0.6,0.7);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(0.8,0.7);

                         glVertex2f(0.8,0.6);

                         glVertex2f(0.6,0.6);

     glEnd();

glBegin(GL_POLYGON);

                         glVertex2f(0.6,0.7);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(0.7,0.7);

                         glVertex2f(0.7,0.4);

                         glColor3f(0.0,0.0,1.0);

                         glVertex2f(0.6,0.4);

     glEnd();

glBegin(GL_POLYGON);

                         glVertex2f(0.7,0.5);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(0.8,0.5);

                         glVertex2f(0.8,0.4);

                         glVertex2f(0.7,0.4);

     glEnd();

     glBegin(GL_POLYGON);

                         glVertex2f(0.7,0.5);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(0.8,0.5);

                         glVertex2f(0.8,0.2);

                         glColor3f(0.0,0.0,1.0);

                         glVertex2f(0.7,0.2);

     glEnd();

glBegin(GL_POLYGON);

                         glVertex2f(0.6,0.3);

                         glColor3f(0.0,1.0,1.0);

                         glVertex2f(0.8,0.3);

                         glVertex2f(0.8,0.2);

                         glVertex2f(0.6,0.2);

     glEnd();

// pohon1

glPushMatrix ();

glBegin (GL_POLYGON);

glColor3f (0.0f, 0.7f, 0.0f);

glVertex3f (-0.83, -0.28, 0.0);

glVertex3f (-0.47, -0.28, 0.0);

glVertex3f (-0.47, -0.28, 0.0);

glVertex3f (-0.58, -0.16, 0.0);

glVertex3f (-0.58, -0.16, 0.0);

glVertex3f (-0.70, -0.16, 0.0);

glVertex3f (-0.70, -0.16, 0.0);

glVertex3f (-0.83, -0.28, 0.0);

glEnd ();

glPopMatrix();

// warnain pohon kanan. bwh 2

glPushMatrix ();

glLineWidth (2.0f);

glBegin (GL_POLYGON);

glColor3f (0.0f, 0.7f, 0.0f);

glVertex3f (-0.77, -0.16, 0.0);

glVertex3f (-0.52, -0.16, 0.0);

glVertex3f (-0.52, -0.16, 0.0);

glVertex3f (-0.61, -0.04, 0.0);

glVertex3f (-0.61, -0.04, 0.0);

glVertex3f (-0.67, -0.04, 0.0);

glVertex3f (-0.67, -0.04, 0.0);

glVertex3f (-0.77, -0.16, 0.0);

glEnd ();

glPopMatrix();

//batangpohon1kanan

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (-0.67, -0.28, 0.0);

glVertex3f (-0.61, -0.28, 0.0);

glVertex3f (-0.61, -0.28, 0.0);

glVertex3f (-0.61, -0.64, 0.0);

glVertex3f (-0.61, -0.64, 0.0);

glVertex3f (-0.67, -0.64, 0.0);

glVertex3f (-0.67, -0.64, 0.0);

glVertex3f (-0.67, -0.28, 0.0);

glEnd ();

//pohon2

// pohon

glPushMatrix ();

glBegin (GL_POLYGON);

glColor3f (0.0f, 0.7f, 0.0f);

glVertex3f (-0.50, -0.28, 0.0);

glVertex3f (-0.13, -0.28, 0.0);

glVertex3f (-0.13, -0.28, 0.0);

glVertex3f (-0.25, -0.16, 0.0);

glVertex3f (-0.25, -0.16, 0.0);

glVertex3f (-0.37, -0.16, 0.0);

glVertex3f (-0.37, -0.16, 0.0);

glVertex3f (-0.50, -0.28, 0.0);

glEnd ();

glPopMatrix();

// warnain pohon kanan. bwh 2

glPushMatrix ();

glLineWidth (2.0f);

glBegin (GL_POLYGON);

glColor3f (0.0f, 0.7f, 0.0f);

glVertex3f (-0.43, -0.16, 0.0);

glVertex3f (-0.18, -0.16, 0.0);

glVertex3f (-0.18, -0.16, 0.0);

glVertex3f (-0.27, -0.04, 0.0);

glVertex3f (-0.27, -0.04, 0.0);

glVertex3f (-0.33, -0.04, 0.0);

glVertex3f (-0.33, -0.04, 0.0);

glVertex3f (-0.43, -0.16, 0.0);

glEnd ();

glPopMatrix();

//batangpohon2kanan

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (-0.33, -0.28, 0.0);

glVertex3f (-0.27, -0.28, 0.0);

glVertex3f (-0.27, -0.28, 0.0);

glVertex3f (-0.27, -0.64, 0.0);

glVertex3f (-0.27, -0.64, 0.0);

glVertex3f (-0.33, -0.64, 0.0);

glVertex3f (-0.33, -0.64, 0.0);

glVertex3f (-0.33, -0.28, 0.0);

glEnd ();

// gedungunnes

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0, 1.0, 1.0);

glVertex3f (-0.03, -0.28, 0.0);

glVertex3f (0.72, -0.28, 0.0);

glVertex3f (0.72, -0.28, 0.0);

glVertex3f (0.72, -0.64, 0.0);

glVertex3f (0.72, -0.64, 0.0);

glVertex3f (-0.03, -0.64, 0.0);

glVertex3f (-0.03, -0.64, 0.0);

glVertex3f (-0.03, -0.28, 0.0);

glEnd ();

//atap gedung

glPushMatrix ();

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (-0.10, -0.28, 0.0);

glVertex3f (0.80, -0.28, 0.0);

glVertex3f (0.80, -0.28, 0.0);

glVertex3f (0.68, -0.16, 0.0);

glVertex3f (0.68, -0.16, 0.0);

glVertex3f (0.03, -0.16, 0.0);

glVertex3f (0.00, -0.16, 0.0);

glVertex3f (-0.12, -0.28, 0.0);

glEnd ();

glPopMatrix();

//jalan

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0, 1.0, 1.0);

glVertex3f (-1.03, -0.70, 0.0);

glVertex3f (1.72, -0.70, 0.0);

glVertex3f (1.72, -0.70, 0.0);

glVertex3f (1.72, -0.96, 0.0);

glVertex3f (1.72, -0.96, 0.0);

glVertex3f (-1.03, -0.96, 0.0);

glVertex3f (-1.03, -0.96, 0.0);

glVertex3f (-1.03, -0.60, 0.0);

glEnd ();

//garis jalan2

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (0.90, -0.85, 0.0);

glVertex3f (0.82, -0.85, 0.0);

glVertex3f (0.82, -0.85, 0.0);

glVertex3f (0.82, -0.80, 0.0);

glVertex3f (0.82, -0.80, 0.0);

glVertex3f (0.90, -0.80, 0.0);

glVertex3f (0.90, -0.80, 0.0);

glVertex3f (0.90, -0.50, 0.0);

glEnd ();

// garis jalan 3

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (0.70, -0.85, 0.0);

glVertex3f (0.62, -0.85, 0.0);

glVertex3f (0.62, -0.85, 0.0);

glVertex3f (0.62, -0.80, 0.0);

glVertex3f (0.62, -0.80, 0.0);

glVertex3f (0.70, -0.80, 0.0);

glVertex3f (0.70, -0.80, 0.0);

glVertex3f (0.70, -0.50, 0.0);

glEnd ();

// garis jalan 4

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (0.50, -0.85, 0.0);

glVertex3f (0.42, -0.85, 0.0);

glVertex3f (0.42, -0.85, 0.0);

glVertex3f (0.42, -0.80, 0.0);

glVertex3f (0.42, -0.80, 0.0);

glVertex3f (0.50, -0.80, 0.0);

glVertex3f (0.50, -0.80, 0.0);

glVertex3f (0.50, -0.50, 0.0);

glEnd ();

// garis jalan 5

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (0.30, -0.85, 0.0);

glVertex3f (0.22, -0.85, 0.0);

glVertex3f (0.22, -0.85, 0.0);

glVertex3f (0.22, -0.80, 0.0);

glVertex3f (0.22, -0.80, 0.0);

glVertex3f (0.30, -0.80, 0.0);

glVertex3f (0.30, -0.80, 0.0);

glVertex3f (0.30, -0.50, 0.0);

glEnd ();

// garis jalan 6

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (0.10, -0.85, 0.0);

glVertex3f (0.02, -0.85, 0.0);

glVertex3f (0.02, -0.85, 0.0);

glVertex3f (0.02, -0.80, 0.0);

glVertex3f (0.02, -0.80, 0.0);

glVertex3f (0.10, -0.80, 0.0);

glVertex3f (0.10, -0.80, 0.0);

glVertex3f (0.10, -0.50, 0.0);

glEnd ();

// garis jalan 7

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (-0.20, -0.85, 0.0);

glVertex3f (-0.12, -0.85, 0.0);

glVertex3f (-0.12, -0.85, 0.0);

glVertex3f (-0.12, -0.80, 0.0);

glVertex3f (-0.12, -0.80, 0.0);

glVertex3f (-0.20, -0.80, 0.0);

glVertex3f (-0.20, -0.80, 0.0);

glVertex3f (-0.20, -0.50, 0.0);

glEnd ();

// garis jalan 8

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (-0.40, -0.85, 0.0);

glVertex3f (-0.32, -0.85, 0.0);

glVertex3f (-0.32, -0.85, 0.0);

glVertex3f (-0.32, -0.80, 0.0);

glVertex3f (-0.32, -0.80, 0.0);

glVertex3f (-0.40, -0.80, 0.0);

glVertex3f (-0.40, -0.80, 0.0);

glVertex3f (-0.40, -0.50, 0.0);

glEnd ();

// garis jalan 9

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (-0.60, -0.85, 0.0);

glVertex3f (-0.52, -0.85, 0.0);

glVertex3f (-0.52, -0.85, 0.0);

glVertex3f (-0.52, -0.80, 0.0);

glVertex3f (-0.52, -0.80, 0.0);

glVertex3f (-0.60, -0.80, 0.0);

glVertex3f (-0.60, -0.80, 0.0);

glVertex3f (-0.60, -0.50, 0.0);

glEnd ();

// garis jalan 10

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (-0.80, -0.85, 0.0);

glVertex3f (-0.72, -0.85, 0.0);

glVertex3f (-0.72, -0.85, 0.0);

glVertex3f (-0.72, -0.80, 0.0);

glVertex3f (-0.72, -0.80, 0.0);

glVertex3f (-0.80, -0.80, 0.0);

glVertex3f (-0.80, -0.80, 0.0);

glVertex3f (-0.80, -0.50, 0.0);

glEnd ();

// garis jalan 11

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0, 0.2, 0.0);

glVertex3f (-1.00, -0.85, 0.0);

glVertex3f (-0.92, -0.85, 0.0);

glVertex3f (-0.92, -0.85, 0.0);

glVertex3f (-0.92, -0.80, 0.0);

glVertex3f (-0.92, -0.80, 0.0);

glVertex3f (-1.00, -0.80, 0.0);

glVertex3f (-1.00, -0.80, 0.0);

glVertex3f (-1.00, -0.50, 0.0);

glEnd ();

//gedunghias

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (0.67, -0.28, 0.0);

glVertex3f (0.61, -0.28, 0.0);

glVertex3f (0.61, -0.28, 0.0);

glVertex3f (0.61, -0.64, 0.0);

glVertex3f (0.61, -0.64, 0.0);

glVertex3f (0.67, -0.64, 0.0);

glVertex3f (0.67, -0.64, 0.0);

glVertex3f (0.67, -0.28, 0.0);

glEnd ();

//gedunghias2

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (0.09, -0.28, 0.0);

glVertex3f (0.03, -0.28, 0.0);

glVertex3f (0.03, -0.28, 0.0);

glVertex3f (0.03, -0.64, 0.0);

glVertex3f (0.03, -0.64, 0.0);

glVertex3f (0.09, -0.64, 0.0);

glVertex3f (0.09, -0.64, 0.0);

glVertex3f (0.09, -0.28, 0.0);

glEnd ();

//pintu

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (1.0f, 0.2f, 0.0f);

glVertex3f (0.40, -0.43, 0.0);

glVertex3f (0.30, -0.43, 0.0);

glVertex3f (0.30, -0.43, 0.0);

glVertex3f (0.30, -0.64, 0.0);

glVertex3f (0.30, -0.64, 0.0);

glVertex3f (0.40, -0.64, 0.0);

glVertex3f (0.40, -0.64, 0.0);

glVertex3f (0.40, -0.43, 0.0);

glEnd ();

//pintukunci

glPushMatrix ();

glLineWidth (1.9f);

glBegin (GL_LINES);

glBegin (GL_POLYGON);

glColor3f (0.0, 0.0, 0.0);

glVertex3f (0.35, -0.48, 0.0);

glVertex3f (0.30, -0.48, 0.0);

glVertex3f (0.30, -0.48, 0.0);

glVertex3f (0.30, -0.50, 0.0);

glVertex3f (0.30, -0.50, 0.0);

glVertex3f (0.35, -0.50, 0.0);

glVertex3f (0.35, -0.50, 0.0);

glVertex3f (0.35, -0.48, 0.0);

glEnd ();

   glFlush();

}

void init(){

     glClearColor(0.0, 0.0, 0.0, 0.0);//definisiin warna clear atau background

     glMatrixMode(GL_PROJECTION);

     glLoadIdentity ();

     gluOrtho2D(-1.0,1.0,-1.0,1.0);//MENENTUKAN UKURAN KANVAS

     //           k   k    b   a

     glMatrixMode(GL_MODELVIEW);

}

int main(int argc, char **argv){

    glutInit(&argc,argv);

    glutInitWindowSize(800,400);

    glutInitWindowPosition(300,300);//jarak windows dari tepi monitor

    glutCreateWindow("My Kampus");

    glutDisplayFunc(display);

    init();

    glutMainLoop();//mulai render

    return 0;

}

Screenshot :

Posted in: Catatan,Materi Ilkom