06160805的課堂筆記

電腦圖學
1.主題：打光Part1
2.主題：模型OBJ檔
3.實作：GLM vs OBJ
4.回家作業

(1)到網頁下載 data、windows、glut32

(2)將 data、glut32 解壓縮後放到 windows

(3)將 Light Material 打開

(4)紅色圈起來的按右鍵可以改變圖案，藍色圈起來的案右鍵可以改變顏色

(5)上網搜尋freeglut windows

(6)下載檔案

(7)將檔案移至桌面並開啟

(8)將檔案移至桌面並開啟

(9)將lib打開

(10)將此檔案複製並貼上

(11)將貼上的檔案重新命名為libglut32.a

(12)File→New→Project

(13)選取 GLUT project

(14)輸入名稱，將檔案儲存在桌面

(15)複製資料夾的網址

(16)將網址貼上

(17)程式碼

(18)利用這些程式碼再加上茶壺的程式碼，可以打光

#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);

    //glColor3f(0,0,0);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main (int argc,char **argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("Week03");

    glutDisplayFunc(display);

    glClearColor(1,1,1,1);

    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();

}