LYC的計圖學習筆記-WEEK07

光影

GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };

GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };

GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };

GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f };

物體材質

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 };

自動旋轉

glutIdleFunc(idle); //閒置時能自動旋轉

改編長寬比時不會歪掉

static void resize(int width, int height)

{

    const float ar = (float) width / (float) height;

    glViewport(0, 0, width, height);

    glMatrixMode(GL_PROJECTION);

    glLoadIdentity();

    glFrustum(-ar, ar, -1.0, 1.0, 2.0, 100.0);

    glMatrixMode(GL_MODELVIEW);

    glLoadIdentity() ;

}