movimientos en una figura

Escalar

Rotar

 

 Trasladar

// gifu.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"


#include <GL/glut.h> // Librería de OpenGL
#include <stdlib.h> //Libreria estandar de ANSI C
#include <stdio.h>

#include <iostream>
#include <gl\glut.h>
using namespace std;
GLfloat x=0.0,y=0.0,z=0.0,girarX=0.0,girarY=0.0,girarZ=0.0;
float vertice1[]={0,0,-3};
float vertice2[]={0,0,3};
float vertice3[]={6,0,-3};
float vertice4[]={3,6,3};
void display(void){
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 glLoadIdentity();
 glColor3f(0.2,0.3,0.9);//   glClearColor (0.3, 0.0, 1, 0.0);
 gluLookAt(0,5,20,0,0,0,0,1,0);
 glTranslatef(x,y,z);
 glRotatef(girarX,0,1,0);
 glRotatef(girarY,1,0,0);
 glRotatef(girarZ,0,0,1);
    glBegin(GL_TRIANGLES);
 glColor3f(0,0,1);
    glVertex3fv(vertice1);
    glVertex3fv(vertice3);
    glVertex3fv(vertice2);
    glColor3f(1,1,0);
    glVertex3fv(vertice3);
    glVertex3fv(vertice2);
    glVertex3fv(vertice4);
 glColor3f(1,0,0);
    glVertex3fv(vertice2);
    glVertex3fv(vertice1);
    glVertex3fv(vertice4);
 glColor3f(0,1,0);
    glVertex3fv(vertice1);
    glVertex3fv(vertice3);
    glVertex3fv(vertice4);
   
 glEnd();
    glFlush();
    glutSwapBuffers();
}
void Redimensionar(GLsizei ancho, GLsizei altura){
 if(altura == 0)
 {
   altura = 1;
 }

 glViewport(0, 0, ancho, altura);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
 if(ancho>altura)
 {
  gluPerspective(45.0f,ancho/altura,1,150.0f);
 }
 else
 {
  gluPerspective(45.0f,altura/ancho,1,150.0f);
 }
 
    glMatrixMode(GL_MODELVIEW);
    glLoadIdentity();
    glDisable(GL_CULL_FACE);
}
void teclado(unsigned char key,int inX, int inY)
{
 if(key == 'm')
 {
  y=y+0.5f;
  glutPostRedisplay();
 }
 if(key == 'n')
 {
  y=y-0.5f;
  glutPostRedisplay();
 }
 if(key == 'h')
 {
  x=x+0.5f;
  glutPostRedisplay();
 }
 if(key == 'j')
 {
  x=x-0.5f;
  glutPostRedisplay();
 }
 if(key == 's')
 {
  z=z+0.5f;
  glutPostRedisplay();
 }
 if(key == 'd')
 {
  z=z-0.5f;
  glutPostRedisplay();
 }

 if(key == 'x')
 {
  girarX=girarX-10;
  glutPostRedisplay();
 }

 if(key == 'y')
 {
  girarY=girarY-10;
  glutPostRedisplay();
 }
 if(key == 'z')
 {
  girarZ=girarZ+10;
  glutPostRedisplay();
 }

}

void myinit()
{
//   glClearColor (0.3, 0.0, 0, 0.5);

   glClearColor (0.3, 0.9, 0, 0.9);
}
void IniciarGL(void)
{
 glEnable(GL_DEPTH_TEST);
 glEnable(GL_CULL_FACE);
}
void main(void)
{
 myinit();
 glutInitWindowSize(800,600);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
 glutInitWindowPosition(100,100);
 glutCreateWindow("Figure");
 glutDisplayFunc(display);
    glutReshapeFunc(Redimensionar);
 glutKeyboardFunc(teclado);
 IniciarGL();
    glutMainLoop();
 glutDestroyWindow(glutGetWindow());

}