CY.hsin week_03

 2022/03/07

1.下載Git hub 檔案

    step01:安裝git for windoes，勾選Launch Git Bash，開啟 小黑窗

    step02:輸入 cd desktop

    step03: 輸入git clone https://github.com/cyxx0610/2022graphics (自己的git hub網址)

    step04:桌面會出現資料夾:2022graphics

2.下載範例檔案

    step01:進入網站 https://jsyeh.org/3dcg10/ 

 

    step02:下載win32，解壓縮

    

step03:

3.印出黃色茶壺

#include <gl/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,0);

    glutSolidTeapot( 0.3 );

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit( &argc,argv);

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow("week03");

    glutDisplayFunc(display);

    glutMainLoop();

    return 0;

}

    

4.印出彩色三角形

#include <gl/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,0);

    glBegin(GL_TRIANGLES);

                glColor3f(1.0f, 0.0f, 0.0f);   glVertex2f(0.0f,   1.0f);

                glColor3f(0.0f, 1.0f, 0.0f);   glVertex2f(0.87f,  -0.5f);

                glColor3f(0.0f, 0.0f, 1.0f);   glVertex2f(-0.87f, -0.5f);

            glEnd();

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit( &argc,argv);

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow("week03");

    glutDisplayFunc(display);

    glutMainLoop();

    return 0;

}