你要出多少 week_11

1.把windows和data的壓縮檔解壓縮放桌面，將壓縮好的data放進壓縮好的windows檔，點transformation.c，可以開啟檔案

2.File-New-Project  GLUT專案 (把freeglut準備好)

3. source.zip 裡 將glm.h 放進我們剛剛開的GLUT專案檔裡面

4.source.zip 裡 將glm.c改成glm.cpp 放進我們剛剛開的GLUT專案檔裡面

5.transformation.c用記事本打開，複製裡面內容，再去將專案main.cpp裡的程式刪掉，貼上剛剛複製的transformation.c內容

6.在CodeBlocks裡，左邊Add File，將glm.cpp加入

7.把壓縮好的data，丟進freeglut裡的bin，回到GLUT專案看main程式的707行，可以把專案檔改名，在執行專案，就會發現這個變成自己的專案檔

8.我們開始寫自己的glm程式

9.#include "glm.h" //使用glm.cpp外掛

10.GLMmodel*pmodel = NULL;//pmodel指標

11.void drawmodel()這個函式讀入OBJ，調大小，畫出

12.display()裡，呼叫 drawmodel()

#include "glm.h"

GLMmodel*pmodel = NULL;

void drawmodel(void)

{

    if (!pmodel) {

pmodel = glmReadOBJ("data/porsche.obj");

if (!pmodel) exit(0);

glmUnitize(pmodel);

glmFacetNormals(pmodel);

glmVertexNormals(pmodel, 90.0);

    }

    glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    drawmodel();

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);

    glutCreateWindow("week11");

    glutDisplayFunc(display);

    glutMainLoop();

}

接著我們要幫車子打光跟轉向

#include "glm.h"

GLMmodel*pmodel = NULL;

void drawmodel(void)

{

    if (!pmodel) {

pmodel = glmReadOBJ("data/porsche.obj");

if (!pmodel) exit(0);

glmUnitize(pmodel);

glmFacetNormals(pmodel);

glmVertexNormals(pmodel, 90.0);

    }

    glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotated(180,0,1,0);

        drawmodel();

    drawmodel();

    glutSwapBuffers();

}

///打光陣列

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 };

int main(int argc, char** argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);

    glutCreateWindow("week11");

    ///打光設定

    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);

    glutDisplayFunc(display);

    glutMainLoop();

}