#ifdef __APPLE__
#include <GLUT/glut.h>
#else
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
#include <iostream>
#endif
#include <stdlib.h>
using namespace std;
//La función que nos va estar dibujando
void Dibuja(){
cerr << "Dibuja()\n";
glClearColor(0,0,0,0);
glClear(GL_COLOR_BUFFER_BIT);
/*GL_PROJECTION permite */
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glPushMatrix();//guarda la matriz
glTranslatef(-0.8,0.8,0.0);
glScalef(1.5,1.5,1.5);//permite esblecer una escala
glRotatef(45,0,1,1);
glColor3f(0.0,1.0,0.0);
//glutSolidSphere(0.2,15,15); //dibuja la esfera solida
glutWireSphere(0.2,15,15);
glPopMatrix();//la guarda y la restaura
glPushMatrix();
glTranslatef(0.8,0.8,0.0);
glColor3f(1.0,1.0,0.0);
glutWireSphere(0.2,15,15);
glPopMatrix();
glPushMatrix();
glTranslatef(0.8,-0.8,0.0);
glColor3f(0.0,1.0,1.0);
glutWireSphere(0.2,15,15);
glPopMatrix();
glPushMatrix();
glTranslatef(-0.8,-0.8,0.0);
glColor3f(0.0,0.0,1.0);
glutWireSphere(0.2,15,15);
glPopMatrix();
glFlush();
}
int main(){
cerr <<"main() \n";
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGBA);
glutInitWindowSize(550,550);
glutCreateWindow("");
glutDisplayFunc(Dibuja);
glutMainLoop();
}
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