week05 02160446 蘇映瑄

來畫個紅色點點
上次作業我製作法國國旗
雖然練啦啦都沒來上課
但是還好人脈夠廣
很多同學carry我教導我如何製作上次作業
所以這次畫這點點對我來說挺容易的

程式碼:
#include <GL/glut.h>//宣告外掛程式
void display()
{
    glClear(GL_COLOR_BUFFER_BIT);
    glBegin(GL_POLYGON);
        glColor3f(1,0,0);//調整三原色
        glVertex3f(0.1,0.1,0.8);
        glVertex3f(-0.1,0.1,0.8);
        glVertex3f(-0.1,-0.1,0.8);
        glVertex3f(0.1,-0.1,0.8);//各點座標
    glEnd();
    glFlush();
}
int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutCreateWindow("02160446");//標題名稱
    glutDisplayFunc(display);
    glutMainLoop();
}

加了幾條程式碼，圖案竟然會左右移動了

程式碼:
#include <GL/glut.h>
float angle=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT);
    glPushMatrix();
        glRotatef(angle,0,1,0);
        glBegin(GL_POLYGON);
            glColor3f(1,0,0);調整三原色
            glVertex3f(0.1,0.1,0.8);
            glVertex3f(-0.1,0.1,0.8);
            glVertex3f(-0.1,-0.1,0.8);
            glVertex3f(0.1,-0.1,0.8);//各點座標
        glEnd();
    glPopMatrix();
    angle +=0.01;
    glFlush();
}
int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutCreateWindow("02160446");
    glutDisplayFunc(display);
    glutIdleFunc(display);
    glutMainLoop();
}

長方形轉動起來了
因為轉動
看出圖形是3D的欸

程式碼:
#include <GL/glut.h>
float angle=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT);
    glPushMatrix();
        glRotatef(angle,0,1,0.5);
        glBegin(GL_POLYGON);
            glColor3f(1,0,0);
            glVertex3f(0.1,0.1,0.8);
            glVertex3f(-0.1,0.1,0.8);
            glVertex3f(-0.1,-0.1,0.8);
            glVertex3f(0.1,-0.1,0.8);
        glEnd();

        glBegin(GL_POLYGON);
            glColor3f(1,0,0);
            glVertex3f(0.1,0.1,-0.8);
            glVertex3f(-0.1,0.1,-0.8);
            glVertex3f(-0.1,-0.1,-0.8);
            glVertex3f(0.1,-0.1,-0.8);
         glEnd();

         glBegin(GL_QUAD_STRIP);
            glVertex3f(0.1,0.1,0.8);
            glVertex3f(0.1,0.1,-0.8);
            glVertex3f(-0.1,0.1,0.8);
            glVertex3f(-.1,0.1,-0.8);
            glVertex3f(-0.1,-0.1,0.8);
            glVertex3f(-0.1,-0.1,-0.8);
            glVertex3f(0.1,-0.1,0.8);
            glVertex3f(0.1,-0.1,-0.8);
        glEnd();
    glPopMatrix();
    angle +=0.01;
    glFlush();
}
int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutCreateWindow("02160446");
    glutDisplayFunc(display);
    glutIdleFunc(display);
    glutMainLoop();
}

現在變成用滑鼠能控制圖形轉動了

真是太厲害了@@

程式碼:

#include <GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT);

    glPushMatrix();

        glRotatef(angle,0,1,0.5);

        glBegin(GL_POLYGON);

            glColor3f(1,1,1);

            glVertex3f(0.1,0.1,0.8);

            glVertex3f(-0.1,0.1,0.8);

            glVertex3f(-0.1,-0.1,0.8);

            glVertex3f(0.1,-0.1,0.8);

        glEnd();

        glBegin(GL_POLYGON);

            glColor3f(1,0,0);

            glVertex3f(0.1,0.1,-0.8);

            glVertex3f(-0.1,0.1,-0.8);

            glVertex3f(-0.1,-0.1,-0.8);

            glVertex3f(0.1,-0.1,-0.8);

         glEnd();

         glBegin(GL_QUAD_STRIP);

            glVertex3f(0.1,0.1,0.8);

            glVertex3f(0.1,0.1,-0.8);

            glVertex3f(-0.1,0.1,0.8);

            glVertex3f(-.1,0.1,-0.8);

            glVertex3f(-0.1,-0.1,0.8);

            glVertex3f(-0.1,-0.1,-0.8);

            glVertex3f(0.1,-0.1,0.8);

            glVertex3f(0.1,-0.1,-0.8);

        glEnd();

    glPopMatrix();

    angle +=0.01;

    glFlush();

}

int oldX=0;

void motion(int x,int y)

{

    angle+=(x-oldX);

    oldX=x;

}

int main(int argc,char **argv)

{

    glutInit(&argc,argv);

    glutCreateWindow("02160446");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMotionFunc(motion);

    glutMainLoop();

}