pelangi2

#include <GL/glut.h>

void persegi();
int main(int argc, char** argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowSize(640,640);
glutCreateWindow("Membuat Persegi Pelangi");
glutDisplayFunc(persegi);
glutMainLoop();
}
void persegi()
{

glBegin(GL_POLYGON);
glColor3f(1.0, 0.0 ,0.0);
glVertex2f(-0.8,0.7);
glVertex2f(-0.8,0.8);
glVertex2f(0.8,0.8);
glVertex2f(0.8,0.7);
glEnd();

glBegin(GL_POLYGON);
glColor3f(1.0, 0.5, 0.0);
glVertex2f(-0.8,0.6);
glVertex2f(-0.8,0.7);
glVertex2f(0.8,0.7);
glVertex2f(0.8,0.6);
glEnd();

glBegin(GL_POLYGON);
glColor3f(1.0, 1.0, 0.0);
glVertex2f(-0.8,0.5);
glVertex2f(-0.8,0.6);
glVertex2f(0.8,0.6);
glVertex2f(0.8,0.5);
glEnd();

glBegin(GL_POLYGON);
glColor3f(0.0, 1.0, 0.0);
glVertex2f(-0.8,0.4);
glVertex2f(-0.8,0.5);
glVertex2f(0.8,0.5);
glVertex2f(0.8,0.4);
glEnd();

glBegin(GL_POLYGON);
glColor3f(0.0, 1.0, 1.0);
glVertex2f(-0.8,0.3);
glVertex2f(-0.8,0.4);
glVertex2f(0.8,0.4);
glVertex2f(0.8,0.3);
glEnd();

glBegin(GL_POLYGON);
glColor3f(0.0, 0.0, 1.0);
glVertex2f(-0.8,0.2);
glVertex2f(-0.8,0.3);
glVertex2f(0.8,0.3);
glVertex2f(0.8,0.2);
glEnd();

glBegin(GL_POLYGON);
glColor3f(0.53, 0.12, 0.47);
glVertex2f(-0.8,0.1);
glVertex2f(-0.8,0.2);
glVertex2f(0.8,0.2);
glVertex2f(0.8,0.1);
glEnd();

glFlush();
}