Week 02 林憶蓮上課筆記

hw1:

複習上週在Codeblock中
(1)File>New>Project. 選OpenGL專案
(2)File>New>Project. 選GLUT專案
(小心:Facebook 下載檔案freeglut)

hw2: 畫茶壺
(3)把Glut 專案刪減成10行
--------------------------------------------------------------------------------------------------------------------
#include <GL/glut.h>

static void display(void)
{
    glutSolidTeapot(0.3);
    glutSwapBuffers();
}


int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");
    glutDisplayFunc(display);

    glutMainLoop();
}

---------------------------------------------------------------------------------------------------------------------

(4)茶壺塗色
-------------------------------------------------------------------------------------------------------------------------
#include <GL/glut.h>

static void display(void)
{
    glColor3f(0,0,0);      /*三原色(R,G,B)*/
    glutSolidTeapot(0.3);
    glutSwapBuffers();
}


int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");
    glutDisplayFunc(display);

    glutMainLoop();
}

------------------------------------------------------------------------------------------------------------------------

white↓

black↓

yellow↓

(5)三角型塗色

◎ 請打網址《http://jsyeh.org/3dcg10》下載 data.zip / window.zip / glut32.dll 此三個檔案為輔助範例

------------------------------------------------------------------------------------------------------------------------

#include <GL/glut.h>

static void display(void)

{

    glBegin(GL_TRIANGLES);      /*做出三角形座標及塗色*/

    glColor3f(1,0,0);

    glVertex3f(0,0,0);

    glColor3f(0,1,0);

    glVertex3f(1,1,0);

    glColor3f(0,0,1);

    glVertex3f(1,-1,0);

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    glutDisplayFunc(display);

    glutMainLoop();

}

-------------------------------------------------------------------------------------------------------------------------

彩色三角形↓

若去掉兩頂點顏色↓