rotating-wire-sphere.cpp

#include <GLUT/GLUT.h>
#include<OpenGL/OpenGL.h>
#include<iostream>
//#include<time>
#include<cstdlib>

#include <cmath>
#include <cstdio>

GLfloat xRotated, yRotated, zRotated;
GLdouble radius=1;

void redisplayFunc(void)
{
    glMatrixMode(GL_MODELVIEW);
    glClear(GL_COLOR_BUFFER_BIT);
    glLoadIdentity();
    glTranslatef(0.0,0.0,-4.5);
    glColor3f(0.2, 0.8, 0.1);
    glRotatef(xRotated,1.0,0.0,0.0);
    glRotatef(yRotated,0.0,1.0,0.0);
    glRotatef(zRotated,0.0,0.0,1.0);
    glScalef(1.0,1.0,1.0);
    glutSolidSphere(radius,20,20);
    glFlush();
}

void reshapeFunc(int x, int y)
{
    if (y == 0 || x == 0) return;
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(40.0,(GLdouble)x/(GLdouble)y,0.5,20.0);
    glMatrixMode(GL_MODELVIEW);
    glViewport(0,0,x,y);
}

void idleFunc(void)
{
    
    yRotated += 0.01;
    redisplayFunc();
}
int main (int argc, char **argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
    glutInitWindowSize(400,350);
    glutCreateWindow("Sphere Rotating Animation");
    glPolygonMode(GL_FRONT_AND_BACK,GL_LINE);
    xRotated = yRotated = zRotated = 30.0;
    xRotated=33;
    yRotated=40;
    glClearColor(0.0,0.0,0.0,0.0);
    glutDisplayFunc(redisplayFunc);
    glutReshapeFunc(reshapeFunc);
    glutIdleFunc(idleFunc);
    glutMainLoop();
    return 0;
}