Bai's-電腦圖學-Week06

#week06

#week06-0_sample

0.freeglut安裝

1.不刪程式 找到程式碼 light

找到程式碼 有兩大塊:宣告,函式

(1)

``

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 };

``

(2)

``

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

貼上11行程式

執行時,因為茶壺為暗色(背光),所以要調整光線位置 psition

因光為黃色,所以茶壺為黃色,本身是白色,受燈光影響

#week06-2_lighting_glNormal3f