The document contains code for a 3D wireframe object program in C++ using OpenGL and GLUT. The code defines functions for initialization, drawing, and window resizing. It sets up the display mode, window position and size, and registers callbacks for drawing, resizing, and the main loop. The drawing function clears the screen, sets color, applies transformations, and draws a wire cube using GLUT functions.

1. PROGRAMA DE OBJETOS 3D WIRE (ALAMBRE)
#include<GL/glut.h>
#include <GL/gl.h>
voidinicializa(void){
glClearColor(1.0,1.0,1.0,0.0);
}
voiddibuja(void){
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(1.0,0.0,0.0); // el color de nuestra figura
gluLookAt(5.0,5.0,5.0,0.0,0.0,0.0,0.0,1.0,0.0);
glPushMatrix();
glScalef(1.0,1.0,1.0);
glRotatef(10.0,1.0,0.0,0.0);
glTranslatef(2.0,0.0,0.0);
glutWireCube(1.0);
glPopMatrix();
glFlush();
}
voidReshapeFun(int w, int h){
glViewport(0,0,w,h);
glMatrixMode(GL_PROJECTION);
glFrustum(-4.0,4.0,-4.0,4.0,4.0,40.0);
glMatrixMode(GL_MODELVIEW);
glClear(GL_COLOR_BUFFER_BIT);
}
int main (intargc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowPosition(1,1);
glutInitWindowSize(1000,700);
glutCreateWindow("Objetos 3D");
inicializa();
glutDisplayFunc(dibuja);
glutReshapeFunc(ReshapeFun);
glutMainLoop();
return 0;
}
Utilizar las siguientes instrucciones
glutWireCube(tamaño); glutWireCone(radio, alt, reph, repv);
glutWireTeapot(tamaño); glutWireTorus(radio,radcentro,reph, repv);
glutWireDodecahedron(); glutWireOctahedron();
glutWireSphere(radio,reph,repv); glutWireTetrahedron();