Question

[C++]

I need to make a program to draw a dodecahedron.

Answer 1

Below is the C code to draw dodecahedron.

CODE

#include <windows.h>
#include <GL/glut.h>
#include <stdlib.h>

static void resize(int width, int height)
{
const float ar = (float) width / (float) height;

glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0);

glMatrixMode(GL_MODELVIEW);
glLoadIdentity() ;
}

static void display(void)
{

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3d(1,0,0);

//Dodecahedron
glPushMatrix();
glTranslated(-3.0, 1.5, -6);
glScaled(0.5, 0.5, 0.5);
glutSolidDodecahedron();
glPopMatrix();

glPushMatrix();
glTranslated(-3.0, -1.2, -6.0);
glScaled(0.5, 0.5, 0.5);
glutWireDodecahedron();
glPopMatrix();

//Octahedron
glPushMatrix();
glTranslated(-1.0, 1.5, -6);
glutSolidOctahedron();
glPopMatrix();

glPushMatrix();
glTranslated(-1.0, -1.2, -6.0);
glutWireOctahedron();
glPopMatrix();

//Tetrahedron
glPushMatrix();
glTranslated(1.0, 1.5, -6);
glutSolidTetrahedron();
glPopMatrix();

glPushMatrix();
glTranslated(1.0, -1.2, -6.0);
glutWireTetrahedron();
glPopMatrix();

//Icosahedrons
glPushMatrix();
glTranslated(3.0, 1.5, -6);
glutSolidIcosahedron();
glPopMatrix();

glPushMatrix();
glTranslated(3.0, -1.2, -6.0);
glutWireIcosahedron();
glPopMatrix();

glutSwapBuffers();
}

const GLfloat light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f };
const GLfloat light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };

const GLfloat mat_ambient[] = { 0.7f, 0.7f, 0.7f, 1.0f };
const GLfloat mat_diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };
const GLfloat mat_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat high_shininess[] = { 100.0f };

/* Program entry point */

int main(int argc, char *argv[])
{
glutInit(&argc, argv);
glutInitWindowSize(640,480);
glutInitWindowPosition(10,10);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

glutCreateWindow("Programming Techniques - 3D regular solids");

glutReshapeFunc(resize);
glutDisplayFunc(display);

glClearColor(1,1,1,1);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);

glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LESS);

glEnable(GL_LIGHT0);
glEnable(GL_NORMALIZE);
glEnable(GL_COLOR_MATERIAL);
glEnable(GL_LIGHTING);

glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);

glMaterialfv(GL_FRONT, GL_AMBIENT, mat_ambient);
glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse);
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

glutMainLoop();

return EXIT_SUCCESS;
}