week09 翁崑祐

week09

09-0 Sample

建立GLUT專案為week09_Sample

1.將上週鋼蛋的程式碼以及檔案匯入

2.加上八行打光程式 在int main()前

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 }; *亮面/暗面

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 };

3.加上12行加兩行函式 在MainLoop前面

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); glEnable(GL_LIGHT0);

4.加入旋轉的程式碼:

float angle=0;

glPushMatrix();

glRotatef(angle++,0,500,0);

glPopMatrix();

glutIdleFunc(display);

END.結果如圖(會旋轉):

09-1 茶杯 方塊 圓球

召喚三個物件:基本程式+

茶杯

glPushMatrix();

glTranslatef(-0.6,+0.3,0);

glutSolidTeapot(0.3);

glPopMatrix();

方格

glPushMatrix();

glTranslatef(+0.0,+0.3,0);

glutSolidCube(0.3);

glPopMatrix();

圓球

glPushMatrix();

glTranslatef(+0.6,+0.3,0);

glutSolidSphere(0.3,30,30);

glPopMatrix();

如果要呈現透明化

Solid->Wire