ఠ_ఠ week09

  week09

(1)

1-1. 在 https://jsyeh.org/3dcg10，下載data , win32

1-2. 解壓縮，把data放到windows裡

1-3.開Texture.exe(貼圖)

(2)

2-1.下載Opencv 2.1.0 win32 vs2008

2-2.Add PATH 選第二個

2-3.目錄不要改 C: \OpenCV2.1

2-4.

2-5.CodeBlocks重開

2-6.File - New - EmptyFile ,存成week09.cpp

2-7.設定settings/Compiler

      (1)Search diedctories

           <1>Compiler

                 Add - C: \ OpenCV2.1 \ include

           <2>Linker

                 Add - C: \ OpenCV2.1 \ lib

      (2)Linker settings

           Add - cv210 & cxcore210 & highgui210

      

2-8.執行後出現圖

(3)

3-1.File-New-Project , 開GLUT

3-2. 設定freeglut ，name : week09_texture

3-3.複製十行茶壺程式

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

        glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc,char** argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week09 texture");

    glutDisplayFunc(display);

    

    glutMainLoop();

}

3-2.加入程式碼

#include <GL/glut.h>

#include <opencv/highgui.h>

void myTexture()

{

    IplImage * img = cvLoadImage("1.png");///讀圖

    cvShowImage("opencv",img);

    ///cvWaitKey(0);///不可寫，會卡住

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

        glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc,char** argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week09 texture");

    glutDisplayFunc(display);

    myTexture();

    glutMainLoop();

}

⃟如果圖是灰色的，表示圖沒有放對地方，要從下面Build log找要存的資料夾

3-3.複製程式

#include <GL/glut.h>

#include <opencv/highgui.h>

#include <opencv/cv.h>

#include <GL/glut.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);

    glutSwapBuffers();

}

int main(int argc,char** argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week09 texture");

    glutDisplayFunc(display);

    myTexture("1.png");

    glutMainLoop();

}