WEEK_03_蔡靖嵐

1.在jsyeh.org/3dcg10下載檔案

    windows.zip,glut32.dll,data.zip

2.把data跟glut32.dll放進windows

3.然後到http://www.transmissionzero.co.uk/software/freeglut-devel/下載freeglut

把freeglut裡面的libfreeglut copy為libglut32

4.開codeblocks開啟專案選freeglut

把freeglut的路徑貼上

5.把開視窗的程式碼打好

(WEEK3重點)6.用新教的顏色函式改變顏色glColor3f(r,g,b).3f是3個參數r﹑g跟b.

(WEEK3重點)7.用glClear(GL_COLOR_BUFFER_BIT)做背景顏色

(WEEK3重點)8.用glBegin(GL_POLYGON)多邊型函式跟glClear配合做出一個有顏色的圖型.

#include <GL/glut.h>

void display()

{

    glClearColor(1,1,1,1); //背景

    glClear(GL_COLOR_BUFFER_BIT);

    glBegin(GL_POLYGON); //多邊形

    glColor3f(1 ,1 ,0 ); //顏色

    glVertex2f(0,0);

    glVertex2f(1,0);

    glVertex2f(0,1);

    glEnd();

    glBegin(GL_POLYGON);

    glColor3f(1,0,0);

    glVertex2f(0,0);

    glColor3f(0,1,0);

    glVertex2f(-1,0);

    glColor3f(0,0,1);

    glVertex2f(0,-1);

    glEnd();

    /*glColor3f(1,0,0);

    glutSolidTeapot(0.5);

    glColor3f(0,1,0);

    glutSolidTeapot(0.4);

    glColor3f(0,0,1);

    glutSolidTeapot(0.3);*/

    glFlush();

}

int main(int argc,char **argv) //主程式

{

    glutInit(&argc,argv);

    glutCreateWindow("02160792");

    glutDisplayFunc(display); //呼叫函式

    glutMainLoop();

}