Objeto CPU / CODIGO

 

 

 

#include <GL/glut.h>
#include <stdlib.h>
GLfloat ang = 1.0;
GLfloat ejex=0.5, ejey=0.5, escalar=1.0;


void reshape (int width,int height)
{
glViewport(0,0,width,height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-15,15,15,-15,15,-15);
glMatrixMode(GL_MODELVIEW);
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT);
glLoadIdentity();

glRotatef(ang, 2.0f, 0.0f, 0.0f);

glTranslatef(ejex,0.0f,0.0f);
glScalef(escalar, escalar, escalar);
//base

glColor3f(1,0,0);
glBegin(GL_POLYGON);

glVertex3f(0,0,4);
glVertex3f(0,6,4);
glVertex3f(4,6,0);
glVertex3f(4,0,4);
//glVertex3f(0,0,4);


glEnd();


//primer cara
glColor3f(0,1,0);
glBegin(GL_POLYGON);

glVertex3f(0,0,4);
glVertex3f(0,0,0);
glVertex3f(8,0,0);
glVertex3f(4,0,4);

glEnd();

//segunda cara
glColor3f(0,0,1);
glBegin(GL_POLYGON);

glVertex3f(0,6,4);
glVertex3f(0,10,0);
glVertex3f(8,10,0);
glVertex3f(4,6,0);


glEnd();
//tercer cara
glColor3f(1,0,1);
glBegin(GL_POLYGON);
glVertex3f(0,0,4);
glVertex3f(0,0,0);
glVertex3f(0,6,4);
glVertex3f(0,0,4);

glEnd();

//cuarta cara
glColor3f(1,1,0);
glBegin(GL_POLYGON);
glVertex3f(4,0,4);
glVertex3f(8,0,0);
glVertex3f(8,10,0);
glVertex3f(4,6,0);
glEnd();

glColor3f(1,0,0);
glBegin(GL_LINE_STRIP);
glVertex3f(0,5,3);
glVertex3f(0,4,3);
glVertex3f(3,5,0);
glVertex3f(3,4,0);

glEnd();

glColor3f(1,0,0);
glBegin(GL_LINE_STRIP);
glVertex3f(0,0,2);
glVertex3f(0,0,3);
glVertex3f(3,0,2);
glVertex3f(3,0,3);

glEnd();
glutSwapBuffers();
ang+=0.1f;
}
void piramide()

{

/* Idle callback, spin cube 2 degrees about selected axis */

ang += 2;

if( ang > 360 ) ang -= 360;


glutPostRedisplay();
}

void init()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glClearColor(0,0,0,0);
}
void idle()
{
display();
}
void ArrowKey(int key, int x, int y){
switch (key){
case GLUT_KEY_RIGHT:
if( ejex<8.0 ){ejex = ejex + 0.5;}//para moverse en la coordenada +x
if(ejex>0.1 && ejex<3){escalar = ejex;}
break;

case GLUT_KEY_LEFT:
if( ejex>-8.0 ){ejex = ejex - 0.5;}//para moverse en la coordenada -x
if(ejex>0.1 && ejex<3){escalar = ejex;}
break;
}


}
void keyboard(unsigned char key, int x, int y)
{
switch (key) {
case 27:
exit(0);
break;}
}
int main (int argc,char **argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
glEnable(GL_DEPTH_TEST);
glutInitWindowPosition(50,50);
glutInitWindowSize(500,500);
glutCreateWindow("Hello");

glutIdleFunc(piramide);

init();
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutIdleFunc(idle);
glutKeyboardFunc(keyboard);
glutSpecialFunc(ArrowKey);
glutMainLoop();
return 0;

}