我出一百萬

 week11

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

1.1 source.zip裡:glm.h放專案:桌面week11_model

1.2 glm.c(改glm.cpp),放專案:桌面week11_model

1.3 transformation.c 複製內容,到我們的main.cpp裡

1.4 在CodeBlocks裡,左邊Add File ,glm.cpp加入

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2.我們開始寫自己的glm程式

2.1 #include "glm.h"///使用glm.cpp的外掛

2.2 GLMmodel* pmodel =NULL;///pmodel指標

2.3 void drawmodel()這個函式讀入OBJ,調大小,draw出

2.4 display()裡,呼叫drawmodel()即可

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#include "glm.h"///使用glm.cpp的外掛

GLMmodel* pmodel =NULL;///pmodel指標

void drawmodel(void)

{///使用範例的程式

    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();///使用範例的程式

     glutSwapBuffers();

}

int main(int argc, char**argv)

{

     glutInit(&argc, argv);

     glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE);

     glutCreateWindow("week11");

     glutDisplayFunc(display);

     glutMainLoop();

}

3.整合打光

3.1 copy上周的"打光的陣列"

3.2 copy上周的"打光的設定"

3.3 調光的位置

3.4 模型轉到陣列

#include "glm.h"///使用glm.cpp的外掛

GLMmodel* pmodel =NULL;///pmodel指標

void drawmodel(void)

{///使用範例的程式

    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();///使用範例的程式

     glPopMatrix();

     glutSwapBuffers();

}

///打光的陣列

    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_RGB | GLUT_DEPTH | GLUT_DOUBLE);

     glutCreateWindow("week11");

     ///打光的設定

     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();

}