Different Dimension Demon的契約書 week11

step01

1.File-New-Project,GLUT專案week11-gundam

2.week09 opencv程式

```c++

#include<opencv/highgui.h>

int main()

{

    IplImage * img =cvLoadImage("data/Diffuse.jpg");

    cvShowImage("Week11",img);

    cvWaitKey(0);

}

```

```c++

#include <GL/glut.h>

#include <opencv/highgui.h>

#include <opencv/cv.h>

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); ///OpenCV讀圖

    cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)

    glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能

    GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID

    glGenTextures(1, &id); /// 產生Generate 貼圖ID

    glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);/// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);/// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);/// 貼圖參數, 放大時的內插, 用最近點

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);/// 貼圖參數, 縮小時的內插, 用最近點

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

    return id;

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);///glutSolidTeapot(0.3);

        glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc ,char** argv)

{

    glutInit( &argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week11 gundam");

    glutDisplayFunc(display);

    myTexture("data/Diffuse.jpg");

    glutMainLoop();

}

```

step02

1.http://jsyeh.org/3dcg10下載 source.zip

把glm.c改檔名成glm.cpp，把glm.cpp放到gundam專案

在專案中按右鍵add file加入glm.cpp

main.cpp前面加include兩行

didsplay加多行

```c++

#include <GL/glut.h>

#include <opencv/highgui.h>

#include <opencv/cv.h>

#include "glm.h"

GLMmodel *pmodel=NULL;

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); ///OpenCV讀圖

    cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)

    glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能

    GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID

    glGenTextures(1, &id); /// 產生Generate 貼圖ID

    glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);/// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);/// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);/// 貼圖參數, 放大時的內插, 用最近點

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);/// 貼圖參數, 縮小時的內插, 用最近點

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

    return id;

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);///glutSolidTeapot(0.3);

    if(pmodel==NULL)///如果是空指標，表示模型沒做好

    {

        pmodel=glmReadOBJ("data/Gundam.obj");///讀模型

        glmUnitize(pmodel);///換算Unit單位，-1,,,+1

        glmFacetNormals(pmodel);///重新計算模型面法向量

        glmVertexNormals(pmodel,90);///重新計算模型頂點法向量

    }

    glmDraw(pmodel,GLM_TEXTURE);

    glutSwapBuffers();

}

int main(int argc ,char** argv)

{

    glutInit( &argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week11 gundam");

    glutDisplayFunc(display);

    myTexture("data/Diffuse.jpg");

    glutMainLoop();

}

```

2.

貼圖上下顛倒了

把data/Diffuse.jpg用小畫家水平翻轉

step03

鋼彈轉動

```c++

#include <GL/glut.h>

#include <opencv/highgui.h>

#include <opencv/cv.h>

#include "glm.h"

GLMmodel *pmodel=NULL;

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); ///OpenCV讀圖

    cvCvtColor(img,img, CV_BGR2RGB); ///OpenCV轉色彩 (需要cv.h)

    glEnable(GL_TEXTURE_2D); ///1. 開啟貼圖功能

    GLuint id; ///準備一個 unsigned int 整數, 叫 貼圖ID

    glGenTextures(1, &id); /// 產生Generate 貼圖ID

    glBindTexture(GL_TEXTURE_2D, id); ///綁定bind 貼圖ID

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);/// 貼圖參數, 超過包裝的範圖T, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);/// 貼圖參數, 超過包裝的範圖S, 就重覆貼圖

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);/// 貼圖參數, 放大時的內插, 用最近點

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);/// 貼圖參數, 縮小時的內插, 用最近點

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

    return id;

}

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);///glutSolidTeapot(0.3);

    if(pmodel==NULL)///如果是空指標，表示模型沒做好

    {

        pmodel=glmReadOBJ("data/Gundam.obj");///讀模型

        glmUnitize(pmodel);///換算Unit單位，-1,,,+1

        glmFacetNormals(pmodel);///重新計算模型面法向量

        glmVertexNormals(pmodel,90);///重新計算模型頂點法向量

    }

    glPushMatrix();

        glRotatef(angle,0,1,0);

        glmDraw(pmodel,GLM_TEXTURE);

    glPopMatrix();

    glutSwapBuffers();

    angle+=1;

}

int main(int argc ,char** argv)

{

    glutInit( &argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week11 gundam");

    glutIdleFunc(display);

    glutDisplayFunc(display);

    myTexture("data/Diffuse.jpg");

    glutMainLoop();

}

```

```c++

#include<GL/glut.h>

void hand()

{

    glColor3f(0,1,0);

    glutSolidTeapot(0.2);

}

void body()

{

    glColor3f(1,1,0);

    glutSolidTeapot(0.3);

}

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    body();

    glPushMatrix();

        glTranslatef(0.5,0.2,0);

        glRotatef(angle,0,0,1);

        glTranslatef(0.3,0,0);

        hand();

    glPopMatrix();

    glutSwapBuffers();

    angle++;

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week11 TRT");

    glutIdleFunc(display);

    glutDisplayFunc(display);

    glutMainLoop();

}

```