Week 10 邱

#第10週上課重點

         1. Maya匯出Obj模型

         2. glm讀模型、畫模型

         3. WAV音效、MP3音樂

         4. 回家作業：小遊戲

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1.jsyeh.org/3dcg10下載

     source.zip → 下載/Windows/glm.c、glm.h、transformation.c

     Windows.zip → 下載/Windows/transformation.exe

     data.zip → 下載/Windows/data/soccerball.obj、soccerball.mtl(色彩)

     glut32.dll → 下載/Windows/glut32.dll

2.用右鍵Notepad++開啟soccerball.obj、soccerball.mtl

3.myGLMsample.zip解壓縮

     開啟04160011_hw1.cdp、Build & 執行

◎改模型

#include <string.h>

#include <stdlib.h>

#include <GL/glut.h>  

#include "glm.h" /// (1) include.h檔

GLMmodel * pmodel = NULL;  /// (2) 3D模型的變數，Ctrl+F找glm

float angle = 0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        angle++;

        glRotatef(angle, 0,1,0);

        if (!pmodel)   ///如果模型還沒讀好→NULL，!pmodel

        {  

             pmodel = glmReadOBJ("data/al.obj");  ///(3) 讀3D模型

             if (!pmodel) exit(0);  ///如果模型還沒讀好→NULL，GG，閃退，離開

             glmUnitize(pmodel);   ///變成單位大小的模型，才不會太大

             glmFacetNormals(pmodel);  ///重算小面的法向量

             glmVertexNormals(pmodel, 90.0);  ///重算頂點法向量

        }

        glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);

    glPopMatrix();

    glutSwapBuffers();

}

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 | GLUT_RGB);

    glutCreateWindow("Yes, 3D Model Here");

    glutDisplayFunc(display);

    glutIdleFunc(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();

}

執行截圖：

◎小遊戲

NeHe Lesson32

下載檔案

執行截圖：

◎加音效

#include <string.h>

#include <stdlib.h>

#include <GL/glut.h>  

#include "glm.h" /// (1) include.h檔

GLMmodel * pmodel = NULL;  /// (2) 3D模型的變數，Ctrl+F找glm

float angle = 0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        angle++;

        glRotatef(angle, 0,1,0);

        if (!pmodel)   ///如果模型還沒讀好→NULL，!pmodel

        {  

             pmodel = glmReadOBJ("data/al.obj");  ///(3) 讀3D模型

             if (!pmodel) exit(0);  ///如果模型還沒讀好→NULL，GG，閃退，離開

             glmUnitize(pmodel);   ///變成單位大小的模型，才不會太大

             glmFacetNormals(pmodel);  ///重算小面的法向量

             glmVertexNormals(pmodel, 90.0);  ///重算頂點法向量

        }

        glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);

    glPopMatrix();

    glutSwapBuffers();

}

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 };

#include <mysystem.h>  /// (1)Multimedia System

void keyboard(unsigned char key,int x,int y)

{

    if(key=="1")PlatSound("Do.wav",NULL,SND_ASYNC);

    if(key=="2")PlatSound("Re.wav",NULL,SND_ASYNC);

    if(key=="3")PlatSound("Mi.wav",NULL,SND_ASYNC);

    if(key=="4")PlatSound("Fa.wav",NULL,SND_ASYNC);

    if(key=="5")PlatSound("So.wav",NULL,SND_ASYNC);

}

void mouse(int button,int state,int x,int y)

{  ///mouse finction, use PlaySound

    PlaySound("C:\\Users\\user\\Downloads\\lesson32\\Lesson32\\Data/Shot.Wav",NULL,SND_ASYNC);

}  ///PlaySound的檔名要小心\\ 兩個反斜線，or / 一個斜線

int main(int argc, char**argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH | GLUT_RGB);

    glutCreateWindow("Yes, 3D Model Here");

    glutMouseFunc(mouse);  ///add mouse for shot.wav

    glutMouseFunc(keyboard);  ///Add keyboard for Do/Re/Mi/Fa/So.wav

    glutDisplayFunc(display);

    glutIdleFunc(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();

}