#include <windows.h>//#include <GLUT/glut.h>#include <GL/glut.h>#include <math.h>#include <iostream>using namespace std;#define GL_PI 3.1415fGLubyte fire[]={    0x00,0x00,0x00,0x00,    0x00,0x00,0x00,0x00,    0x00,0x00,0x00,0x00,    0x00,0x00,0x00,0x00,    0x00,0x00,0x00,0x00,    0x00,0x00,0x00,0x00,    0x00,0x00,0x00,0xc0,    0x00,0x00,0x01,0xf0,    0x00,0x00,0x07,0xf0,    0x0f,0x00,0x1f,0xe0,    0x1f,0x80,0x1f,0xc0,    0x0f,0xc0,0x3f,0x80,    0x07,0xe0,0x7e,0x00,    0x03,0xf0,0xff,0x80,    0x03,0xf5,0xff,0xe0,    0x07,0xfd,0xff,0xf8,    0x1f,0xfc,0xff,0xe8,    0xff,0xe3,0xbf,0x70,    0xde,0x80,0xb7,0x00,    0x71,0x10,0x4a,0x80,    0x03,0x10,0x4e,0x40,    0x02,0x88,0x8c,0x20,    0x05,0x05,0x04,0x40,    0x02,0x82,0x14,0x40,    0x02,0x40,0x10,0x80,    0x02,0x64,0x1a,0x80,    0x00,0x92,0x29,0x00,    0x00,0xb0,0x48,0x00,    0x00,0xc8,0x90,0x00,    0x00,0x85,0x10,0x00,    0x00,0x03,0x00,0x00,    0x00,0x00,0x10,0x00,};void RenderScene(){    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);    glBegin(GL_POLYGON);        glVertex2f(-20.0f,50.0f);        glVertex2f(20.0f,50.0f);        glVertex2f(50.0f,20.0f);        glVertex2f(50.0f,-20.0f);        glVertex2f(20.0f,-50.0f);        glVertex2f(-20.0f,-50.0f);        glVertex2f(-50.0f,-20.0f);        glVertex2f(-50.0f,20.0f);    glEnd();    glutSwapBuffers();}void ChangeSize(GLsizei w,GLsizei h){    if(h==0)        h = 1;    GLfloat aspectRatio = (GLfloat)w/(GLfloat)h;    glViewport(0,0,w,h);    glMatrixMode(GL_PROJECTION);    glLoadIdentity();    if(w<=h)        glOrtho(-100,100,-100/aspectRatio,100/aspectRatio,100.0,-100.0);    else        glOrtho(-100*aspectRatio,100*aspectRatio,-100,100,100.0,-100.0);    glMatrixMode(GL_MODELVIEW);    glLoadIdentity();}void SetupRC(){    glClearColor(0.0f,0.0f,0.0f,1.0f);    glColor3f(1.0f,0.0f,0.0f);    glEnable(GL_POLYGON_STIPPLE);    glPolygonStipple(fire);}int main(int argc, char *argv[]){   glutInit(&argc,argv);   glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB|GLUT_DEPTH);   glutInitWindowSize(800,600);   glutCreateWindow("Simple");   glutDisplayFunc(RenderScene);   glutReshapeFunc(ChangeSize);   SetupRC();   glutMainLoop();   return 0;}