Week-14

首先畫出一個圓形

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidSphere(0.3,30,30);///實心的圓球///半徑 縱切 橫片切

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutMainLoop();

}

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidSphere(0.3,30,30);///實心的圓球///半徑 縱切 橫片切

    glutSwapBuffers();

}

void timer(int t){        ///時間函式

    glClearColor(1,0,0,0);///清除背景的色彩 : 紅色

    display();

}

int main(int argc, char**argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutTimerFunc( 4000,timer,0 );///呼叫時間函式  4000為倒數幾秒，中間為呼叫誰，第三個是參數

    glutMainLoop();

}

#include <GL/glut.h>

int angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotatef(angle,0,0,1);

        glutSolidCube(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void timer(int t){///鬧鐘響起，timer叫

    glutTimerFunc(30,timer,t+1);///馬上設定下一個鬧鐘

    angle++;

    display();

}

int main(int argc, char**argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutTimerFunc( 4000,timer,0 );///第一個鬧鐘

    glutMainLoop();

}

#include <GL/glut.h>

int angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotatef(angle,0,0,1);

        glutSolidCube(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

int diff=2;

void timer(int t){    ///鬧鐘響起，timer叫

    glutTimerFunc(20,timer,t+1);///馬上設定下一個鬧鐘

    angle+=diff;

    if(angle>180) diff = -diff;

    if(angle<0) diff = -diff;

    display();

}

int main(int argc, char**argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutTimerFunc( 4000,timer,0 );///第一個鬧鐘

    glutMainLoop();

}