house_opengl.cpp

//use OpenGL library for drawing a simple red house.
#include <GL/glut.h>  // GLUT, includes glu.h and gl.h
#include <stdlib.h>
#include <stdio.h>
//  Initialize OpenGL Graphics

void init()
{
    // Define a cor de fundo da janela
    glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
    // Limpa a janeja
    glClear(GL_COLOR_BUFFER_BIT);
}


void drawHouse() {
    glBegin(GL_QUADS);
    glColor3f(1.0f, 0.0f, 0.0f);
    glVertex3f(0.0f, 0.0f, 0.0f);
    glVertex3f(0.0f, 0.0f, -1.0f);
    glVertex3f(1.0f, 0.0f, -1.0f);
    glVertex3f(1.0f, 0.0f, 0.0f);
    glEnd();
    glBegin(GL_TRIANGLES);
    glColor3f(0.0f, 1.0f, 0.0f);
    glVertex3f(0.0f, 0.0f, 0.0f);
    glVertex3f(1.0f, 0.0f, 0.0f);
    glVertex3f(0.0f, 1.0f, 0.0f);
    glEnd();
    glFlush();
}
//  Draw a house using the current transformation


int main(int argc, char *argv[]) {
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
    glutInitWindowPosition(800, 600);
    glutInitWindowSize(800, 600);
    glutCreateWindow("Casa");
    init();
    // Definição da função de callback
    glutDisplayFunc(drawHouse);
    glutMainLoop();
}