電腦圖學week06

 ##期中考題目

1.期中考題jsyeh.org/gl/

2.模擬練習

#week06-0_smaple

0. 桌面安裝 freeglut，把 lib 的l ibfreeglut.a複製成 libglut32.a

1.File-New-Project ，Glut 專案week06-0_smaple

2.尋找兩大塊程式碼

```cpp

const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };
const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };
const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };
const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };
const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };
const GLfloat high_shininess[] = { 100.0f };

```

   ```cpp

      glEnable(GL_DEPTH_TEST);

    glDepthFunc(GL_LESS);

    glEnable(GL_LIGHT0);

    glEnable(GL_NORMALIZE);

    glEnable(GL_COLOR_MATERIAL);

    glEnable(GL_LIGHTING);

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);

    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);

    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);

    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);

    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);

    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);

    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

```

#week06-1_lighting

1.File-New-Project ，Glut 專案，week06-1_lighting

2.貼上GLUT 11行程式碼

3.貼上 剛剛week06-0_smaple找到的程式碼

4.改const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };

5.可以調整光的顏色

1.下載課本範例https://jsyeh.org/3dcg10/下載window data source

2.window.zip解壓縮

3.data.zip解壓縮

4.source解壓縮

5.開Light Material

##week06-2_lighting_glNormal3f

1.File-New-Project ，Glut 專案，week06-2_lighting_glNormal3f

2.把剛的程式碼week06-1_lighting拿來用

3.加上四邊形，有設定法向量

##week06-3_glm_obj_modle

1.File-New-Project ，Glut 專案，week06-3_glm_obj_modle

2.貼上GLUT 11行程式碼

3.從課本範例學習source.zip有三個程式檔:transformation.c.glm.h glm.c解壓縮

4.要將專案做設定

4.1把 glm.h 放到 桌面\week06-3_glm_obj_modle 目錄裡

4.2把 glm.c 放到 桌面\week06-3_glm_obj_modle 目錄裡，改檔名glm.cpp

4.3在專案裡按右鍵Add Files，加入glm.cpp

5.用Notepad++ 開啟 transformation.c 研究他的程式碼 , 關鍵字 glm 找到程式碼，複製貼上程式碼