Menggambar dengan OpenGL di Devc++

Halooooo kembali lagi ngepost ilmu disini, kali ini membahas tentang gimana cara menggambar pake OpenGL di Devc++...nah silakan disimak ya readers :)

Program 1:

• Menambah titik

#include<GL/glut.h> //memanggil librari OpenGL

void titik();

main(int argc,char**argv)

{

glutInit(&argc,argv);

glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);

glutInitWindowSize(600,800); //ukuran jendela pada saat di compile

glutInitWindowPosition(100,100); //menentuka posisi jendela

glutCreateWindow("Tambah beberapa titik"); //Judul pada saat di compile

glClearColor(0.0,0.0,0.0,0.0); //warna latar belkang 4 komponen wana yaittu RGB, dan alpha

glMatrixMode(GL_PROJECTION);

//glOrtho((0.0,1.0,0.0,1.0);

glOrtho(1.0,1.0,1.0,1.0,-1.0,1.0);

glutDisplayFunc(titik);

glutMainLoop();

}

void titik()

{

glClear(GL_COLOR_BUFFER_BIT); //membersihkan semua piksel

glPointSize(8.8); //ukuran titik piksel

glBegin(GL_POINTS); //perintah untuk grafik primitif

glColor3f(1.0,1.0,1.0); //warna latar muka/3 komponen warna RGB

glVertex2f(0.25,0.25); //lokasi titik berada di (x,y)/ type argumennya adalah integer dan 2dimensi yatu x dan y

glColor3f(0.1,1.0,1.0);

glVertex2f(0.5,0.5);

glColor3f(0.1,1.0,1.0);

glVertex2f(0.30,0.30);

glColor3f(0.1,1.0,1.0);

glVertex2f(0.55,0.55);

//glPointSize(2.0);

glEnd(); //Akhir perintah OpenGL

glFlush(); //Untuk mengeekusi openGL infinite time

}

• Merubah warna titik

#include<GL/glut.h> //memanggil librari OpenGL
void titik();
main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);
glutInitWindowSize(600,800);
glutInitWindowPosition(100,100);
glutCreateWindow("Ganti Warna");
glClearColor(0.0,0.0,0.0,0.0); //warna latar belkang 4 komponen wana yaittu RGB, dan alpha
glMatrixMode(GL_PROJECTION);
//glOrtho((0.0,1.0,0.0,1.0);
glOrtho(1.0,1.0,1.0,1.0,-1.0,1.0);
glutDisplayFunc(titik);
glutMainLoop();
}
void titik()
{
glClear(GL_COLOR_BUFFER_BIT); //membersihkan semua piksel
glPointSize(9.0); //ukuran titik piksel
glBegin(GL_POINTS); //perintah untuk grafik primitif
glColor3f(0.0,0.0,1.1); //warna latar muka/3 komponen warna RGB (biru)
glVertex2f(0.25,0.25); //lokasi titik berada di (x,y)/ type argumennya adalah integer dan 2dimensi yatu x dan y
glColor3f(0.0,1.1,0.0); //warna hijau
glVertex2f(0.5,0.5);
glColor3f(1.1,1.1,0.0); //warna kuning
glVertex2f(0.30,0.30);
glColor3f(1.0,0.0,0.0); //warna merah
glVertex2f(0.55,0.55);
        glColor3f(0.0,0.0,1.1); //warna biru
        glVertex2f(0.55,0.55);
//glPointSize(2.0);
glEnd(); //Akhir perintah OpenGL
glFlush(); //Untuk mengeekusi openGL infinite time
}

• Menganalisa

  

 Program 2 & 3

• Segitiga sama kaki

#include <iostream>

#include <Gl/glut.h>

#include <stdio.h>

void titik();

main(int argc, char** argv)

{

glutInit(&argc,argv);

glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);

glutInitWindowSize(600,800);

glutInitWindowPosition(100,100);

glutCreateWindow("Percobaan Segitiga Sama Kaki");

glClearColor(0.0,0.0,0.0,0.0); //warna latar belakang/ 4 komponen warna yaitu RGB, dan alpha

glMatrixMode(GL_PROJECTION);

//glOrtho(0.0,1.0,0.0,1.0,-1.0,1.0);

glOrtho(1.0,1.0,1.0,1.0,-1.0,1.0);

glutDisplayFunc(titik);

glutMainLoop();

}

void titik()

{

glClear(GL_COLOR_BUFFER_BIT);//membersihkan semua piksel

glBegin(GL_LINES);//perintah untuk grafik primitif

glColor3f(0.0,0.0,1.0);//warna latar antarmuka/3 komponen warna RGB

glVertex2f(-0.5,-0.2);

glVertex2f(0.0,0.5);

glColor3f(0.0,0.0,1.0);

glVertex2f(0.5,-0.2);

glVertex2f(0.0,0.5);

glColor3f(0.0,0.0,1.0);

glVertex2f(0.5,-0.2);

glVertex2f(-0.5,-0.2);

glPointSize(50.0f);

glLineWidth(50.0f);

glEnd();

glFlush();

}

• Kubus

#include <GL/glut.h>

void titik();

 main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);

    glutInitWindowSize(600,600);

    glutInitWindowPosition(100,100);

    glutCreateWindow("PERCOBAAN KUBUS");

    glClearColor(0.0,0.0,0.0,0.0);

    glMatrixMode(GL_PROJECTION);

    glutDisplayFunc(titik);

    glutMainLoop();

}

     void titik()

    {

    glClear(GL_COLOR_BUFFER_BIT);

    glBegin(GL_POLYGON);

    glColor3f(1.1,0.0,0.0); //persegi merah

    glVertex2f(-0.5,-0.5);

    glVertex2f(-0.5,0.5);

    glVertex2f(0.5,0.5);

    glVertex2f(0.5,-0.5);

    glEnd();

    glFlush();

    } //untuk mengeksekusi opengL infinite time

• Pelangi, 7 warna 7 garis

#include<GL/glut.h>

void titik ();

main(int argc, char** argv)

{

glutInit(&argc,argv);

glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);

glutInitWindowSize(800,600);

glutInitWindowPosition(100,100);

glutCreateWindow("7 WARNA 7 GARIS");

glClearColor(0.0,0.0,0.0,0.0);

glMatrixMode(GL_PROJECTION);

glOrtho(0.0,1.0,0.0,1.0,-1.0,1.0);

glutDisplayFunc(titik);

glutMainLoop();

}

void titik()

{

glClear(GL_COLOR_BUFFER_BIT);

glBegin(GL_LINES);

glColor3f(1.0,0.0,0.0);

glVertex2f(0.5,0.7);

glColor3f(0.0,0.0,0.0);

glVertex2f(0.5,0.9); 

glColor3f(0.0,1.0,0.0);

glVertex2f(0.8,0.3);

glColor3f(0.0,1.0,0.0);

glVertex2f(0.2,0.2);

glColor3f(0.0,0.0,1.0);

glVertex2f(0.6,0.9);

glColor3f(0.0,0.0,1.0);

glVertex2f(0.4,0.4);

glColor3f(1.0,5.0,0.0);

glVertex2f(0.15,0.3);

glColor3f(1.0,5.0,0.0);

glVertex2f(0.7,0.7);

glColor3f(0.0,5.0,0.0);

glVertex2f(0.55,0.8);

glColor3f(0.1,1.0,1.0);

glVertex2f(0.10,0.9);

glColor3f(1.0,0.0,1.0);

glVertex2f(0.3,0.9);

glColor3f(1.0,0.0,1.0);

glVertex2f(0.5,0.5);

glColor3f(1.0,1.0,1.0);

glVertex2f(0.8,0.15);

glColor3f(1.0,1.0,1.0);

glVertex2f(0.7,0.3);

glPointSize(50.0f);

glEnd();

glFlush();

}

• Kotak berwarna

#include<GL/glut.h>

void titik();

void titik()

{

glClear(GL_COLOR_BUFFER_BIT); //merah

glBegin(GL_POLYGON);

glColor3f(0.0,1.0,0.0);

glVertex2f(-0.7f,-0.7f);

glVertex2f(-0.7f,0.7f);

glVertex2f(0.7f,0.7f);

glVertex2f(0.7f,-0.7f);

glVertex2f(-0.7f,-0.7f);

glPointSize(50.0f);

glEnd();//akhir perintah OpenGL

    

glBegin(GL_POLYGON);

glColor3f(1.0,0.0,0.0);

glVertex2f(-0.3f,-0.3f);

glVertex2f(-0.3f,0.3f);

glVertex2f(0.3f,0.3f);

glVertex2f(0.3f,-0.3f);

glVertex2f(-0.3f,-0.3f);

glPointSize(50.0f);

glEnd();//akhir perintah OpenGL

glFlush();//untuk mengeksekusi openGL infinite time

}

main(int argc, char** argv)

{

glutInit(&argc,argv);

glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);

glutInitWindowSize(800,800);

glutInitWindowPosition(100,100);

glutCreateWindow("Percobaan yang ke-4");

glClearColor(0.0,0.0,0.0,0.0);

glMatrixMode(GL_PROJECTION);

// glOrtho(0.0,1.0,0.0,1.0,-1.0,1.0);

glOrtho(1.0,1.0,1.0,1.0,-1.0,1.0);

glutDisplayFunc(titik);

glutMainLoop();

}