week5

到網址http://www.cmlab.csie.ntu.edu.tw/~jsyeh/3dcg10/

下載：

把windows壓縮檔解壓，把glut32 & data丟到裡面，執行Light Material

到 https://www.transmissionzero.co.uk/software/freeglut-devel/

下載freeglut 做好前置作業

茶壺打光變立體了

程式碼：

#include <GL/glut.h>

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 };

void display()

{

   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

   glutSolidTeapot(0.3);

   glutSwapBuffers();

}

int main(int argc, char ** argv)

{

   glutInit( &argc, argv); ///啟動GLUT

   glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

   glutCreateWindow("week5");

   glutDisplayFunc(display);

   glClearColor(1,0,0,1);

   glEnable(GL_CULL_FACE);

   glCullFace(GL_BACK);

   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);

   glutMainLoop();

}茶壺會自動旋轉

程式碼：

#include <GL/glut.h>

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 };

float angle=0; ///新加的

void display()

{

   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

   glPushMatrix(); ///新加的

       glRotatef(angle, 0,1,0); ///新加的

       glutSolidTeapot(0.3); ///新加的

   glPopMatrix(); ///新加的

   angle++; ///新加的

   glutSwapBuffers();

}

int main(int argc, char ** argv)

{

   glutInit( &argc, argv); ///啟動GLUT

   glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

   glutCreateWindow("week5");

   glutDisplayFunc(display);

   glutIdleFunc(display); ///新加的

   glClearColor(1,0,0,1);

   glEnable(GL_CULL_FACE);

   glCullFace(GL_BACK);

   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);

   glutMainLoop();

}

茶壺會隨著座標旋轉

程式碼：

#include <GL/glut.h>

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 };

float angle=0; ///新加的

void display()

{

   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

   glPushMatrix(); ///新加的

       glRotatef(angle, 0,1,0); ///新加的

       glutSolidTeapot(0.3); ///新加的

   glPopMatrix(); ///新加的

   angle++; ///新加的

   glutSwapBuffers();

}

void motion(int x,int y)

{

   angle = x; ///新加的

   display(); ///新加的

}

int main(int argc, char ** argv)

{

   glutInit( &argc, argv); ///啟動GLUT

   glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

   glutCreateWindow("week5");

   glutDisplayFunc(display);

   /// glutIdleFunc(display); ///新加的

   glutMotionFunc(motion); ///新加的

   glClearColor(1,0,0,1);

   glEnable(GL_CULL_FACE);

   glCullFace(GL_BACK);

   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);

   glutMainLoop();

}