02160172_陳建瑜_week05

今天上課老師一開始先複習一下上星期的進度，他是會轉的甜甜圈，要有視窗蓋到他在移開他就會開始旋轉

輸入glBegin(GL_LINE_LOOP);

    glVertex3f(0.2,0.2,0.8);

    glVertex3f(0.2,-0.2,0.8);

    glVertex3f(-0.2,-0.2,0.8);

    glVertex3f(-0.2,0.2,0.8);

    glEnd();

 glBegin(GL_POLYGON);

    glVertex3f(0.2,0.2,-0.8);

    glVertex3f(0.2,-0.2,-0.8);

    glVertex3f(-0.2,-0.2,-0.8);

    glVertex3f(-0.2,0.2,-0.8);

    glEnd();

    glPopMatrix();

    glFlush();

    angle+=0.01;

可以跑出看起來蠻3D的正方形

輸入glBegin(GL_LINE_LOOP);

    glVertex3f(0.2,0.2,0.8);

    glVertex3f(0.2,-0.2,0.8);

    glVertex3f(-0.2,-0.2,0.8);

    glVertex3f(-0.2,0.2,0.8);

    glEnd();

會跑出一個會旋轉的正方形

  glBegin(GL_QUAD_STRIP);

     glVertex3f(0.2,0.2,0.8);

    glVertex3f(0.2,0.2,-0.8);

    glVertex3f(0.2,-0.2,0.8);

    glVertex3f(0.2,-0.2,-0.8);

    glVertex3f(-0.2,-0.2,0.8);

    glVertex3f(-0.2,-0.2,-0.8);

    glVertex3f(-0.2,0.2,0.8);

    glVertex3f(-0.2,0.2,-0.8);

    glEnd();

慈母手中線....把第一行跟第一行對再一起會跑出接再一起的長方體

這是加了線的長方體

glColor3f(0,0,1);

    glBegin(GL_LINE_LOOP);

        glVertex3f( 0.2, 0.2, 0.8);

        glEnd();

我將座標軸的值都改為0.1讓三角形變小

要將四方體改為三角體，只要將麵的點從四個改為三個就可以了

 glBegin(GL_POLYGON);

    glVertex3f(0.1,0.1,-0.1);

    glVertex3f(0.1,-0.1,-0.1);

    glVertex3f(-0.1,-0.1,-0.1);

#include <stdio.h>         (((有printf就要加))))

加入angley可以讓上下移動

void motion(int x, int y)

{

    printf("%d %d\n", x, y);

    angle = x;

    angle2 =y;

}

    ///glutMouseFunc(mouse); ///mousedown的按鈕的按下去Down/彈起來up

    glutMotionFunc(motion);   ///mouse的motion

多打入幾行程式可以利用滑鼠將圖形移動