week14

 

程式碼：#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);

    glutSolidSphere(0.3,30,30);

    glutSwapBuffers();

}

int main( int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14");

    glutDisplayFunc(display);

    glutMainLoop();

}

程式碼：#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);

    glutWireSphere(0.3,30,30);

    glutSwapBuffers();

}

int main( int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14");

    glutDisplayFunc(display);

    glutMainLoop();

}

加入timer參數使顏色過一段時間變紅

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT| GL_DEPTH_BUFFER_BIT);

    ///glutSolidSphere(0.3,30,30);

    glutWireSphere(0.3,30,30);

    glutSwapBuffers();

}

void timer(int t)///timer響起時 做你要做的事

{

    glClearColor(1,0,0,0);///清背景色 紅色

    display();///重製畫面

}

int main( int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);///時間，呼叫誰，參數

    glutMainLoop();

}

                                                    

加入程式使方塊旋轉

#include <GL/glut.h>

float 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)///timer響起時 做你要做的事

{

    glutTimerFunc(30,timer,t+1);

    glClearColor(1,0,0,0);

    angle++;

    display();///重製畫面

}

int main( int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week14");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);///時間，呼叫誰，參數

    glutMainLoop();

}

加入一個可以旋轉的手臂

#include <GL/glut.h>

float angle=0;

void drawArm1()

{

    glPushMatrix();

        glScalef(1,0.5,0.5);///變細長的手臂

        glColor3f(0,1,0);///紅色的手臂

        glutSolidCube(0.2);

    glPopMatrix();

}

void display(void)

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glColor3f(1,1,1);

        glutSolidCube(0.4);

        glPushMatrix();

            glTranslatef(-0.2,0.2,0);

            glRotatef(angle,0,0,1);

            glTranslatef(-0.1,0,0);

            drawArm1();

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int diff=2;

void timer(int t)

{

    glutTimerFunc(20,timer,t+1);

    glClearColor(1,0,0,0);///清背景色:紅色

    if(angle>90)diff=-2;

    if(angle<0)diff=+2;

    angle+=diff;

    display();///重畫畫面

}

int main(int argc, char** argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow(" Week14 timer ");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);

    glutMainLoop();

}