林芷祺的筆記Week16

WEEK16    2019/6/6

主題 : 作業Q&A

複習:貼圖

把所有截圖都存雲端了哦 ~ step.zip

實作:OpenCV

1.下載OpenCV2.1 的 OpenCV-2.1.0-win32-vs2008.exe

2.執行，選擇路徑(後兩個)

3. 放在  C:\openCV2.1 並安裝

4.安裝好後再開啟CODEBLOCKS!!

GLUT專案 

5.開啟glut專案(檔案位置記得存!!!!!!!!)

 6.搜尋freeglut window下載Download freeglut 3.0.0 for MinGW 

7.複製檔案位置 

 8.複製libfreeglut.a--->改成libglut32.a

9.把GLUT的main.cpp裡的程式全部刪掉，改成

(01-texture)

#include <GL/glut.h>

#include <opencv/highgui.h> ///OpenCV High GUI讀圖

///程式碼是對的, 但是沒有設定好include, lib, bin

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidTeapot( 0.3 );

    glutSwapBuffers();

}

GLuint id;

void myInit()

{

    glEnable(GL_TEXTURE_2D);

    IplImage * img = cvLoadImage("06160531.jpg");

    glGenTextures(1, &id );

    glBindTexture(GL_TEXTURE_2D, id);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

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

}

int main(int argc, char **argv)

{

    ///IplImage * img = cvLoadImage("06160531.jpg");

    ///cvShowImage("opencv", img);

    ///cvWaitKey(0);///等你按按鍵

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);

    glutCreateWindow("GLUT");///之後

    ///建好GLUT視窗,可以開始準備 3D 貼圖 (要在create...MainLoop才能建貼圖)

    myInit();///我們的貼圖在這裡

    glutDisplayFunc(display);

    glutMainLoop();///之前

}

10.在Project 裡選擇 Build options

11. 在search directions 那欄的 complier 新增 C:\OpenCV2.1\include 然後按ok

12. 在search directions 那欄的 linker 新增 C:\OpenCV2.1\lib 然後按ok

13.在Linker Settings那欄新增 cv210 / cxcore210 / highgui210 然後按OK

 

14.就可以執行了~

15.可以貼很多圖~(1-4)

#include <GL/glut.h>

#include <opencv/highgui.h> ///OpenCV High GUI讀圖

#include <opencv/cv.h> ///OpenCV cvCvtColor() to convert color

///程式碼是對的, 但是沒有設定好include, lib, bin

GLuint id1, id2, id3;///NOW2

float a=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glBindTexture(GL_TEXTURE_2D, id1);///id1 for background

    glBegin(GL_POLYGON);

        glTexCoord2f(0, 0); glVertex3f(-1, +1, 0);

        glTexCoord2f(0, 1); glVertex3f(-1, -1, 0);

        glTexCoord2f(1, 1); glVertex3f(+1, -1, 0);

        glTexCoord2f(1, 0); glVertex3f(+1, +1, 0);

    glEnd();

    glBindTexture(GL_TEXTURE_2D, id3);///id3 for rotating square

    glPushMatrix();

        glTranslatef(0.5, 0.5, 0);

        glRotatef(a++, 0, 0, 1);

        glScalef(0.3, 0.3, 0.3);

        glBegin(GL_POLYGON);

            glTexCoord2f(0, 0); glVertex3f(-1, +1, 0);

            glTexCoord2f(0, 1); glVertex3f(-1, -1, 0);

            glTexCoord2f(1, 1); glVertex3f(+1, -1, 0);

            glTexCoord2f(1, 0); glVertex3f(+1, +1, 0);

        glEnd();

    glPopMatrix();

    glBindTexture(GL_TEXTURE_2D, id2);///id2 for teapot

    glutSolidTeapot( 0.3 );

    glutSwapBuffers();

}

///void myInit()

GLuint myTexture(char * filename)

{

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

    cvCvtColor(img, img, CV_BGR2RGB);///convert color ///NOW OpenCV

    GLuint id;

    glEnable(GL_TEXTURE_2D);

    glGenTextures(1, &id );

    glBindTexture(GL_TEXTURE_2D, id);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

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

    return id;

}

int main(int argc, char **argv)

{

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

    ///cvShowImage("opencv", img);

    ///cvWaitKey(0);///等你按按鍵

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);

    glutCreateWindow("GLUT");///之後

    ///建好GLUT視窗,可以開始準備 3D 貼圖 (要在create...MainLoop才能建貼圖)

    id1 = myTexture("06160531.jpg"); ///myInit();///我們的貼圖在這裡

    id2 = myTexture("06160531-1.jpg");

    id3 = myTexture("06160531-2.jpg");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMainLoop();///之前

}

16.整理過後的程式碼(01-5)

#include <GL/glut.h>

#include <opencv/highgui.h> ///OpenCV High GUI讀圖 ///貼圖需要它

#include <opencv/cv.h> ///OpenCV cvCvtColor() to convert color///貼圖需要它

///程式碼是對的, 但是沒有設定好include, lib, bin

GLuint id1, id2, id3;///NOW2 ///貼圖需要它

float a=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glBindTexture(GL_TEXTURE_2D, id1);///id1 for background ///貼圖需要它

    glBegin(GL_POLYGON); ///貼圖需要它

        glTexCoord2f(0, 0); glVertex3f(-1, +1, 0); ///貼圖需要它

        glTexCoord2f(0, 1); glVertex3f(-1, -1, 0); ///貼圖需要它

        glTexCoord2f(1, 1); glVertex3f(+1, -1, 0); ///貼圖需要它

        glTexCoord2f(1, 0); glVertex3f(+1, +1, 0); ///貼圖需要它

    glEnd();///貼圖需要它

    glBindTexture(GL_TEXTURE_2D, id3);///id3 for rotating square

    glPushMatrix();

        glTranslatef(0.5, 0.5, 0);

        glRotatef(a++, 0, 0, 1);

        glScalef(0.3, 0.3, 0.3);

        glBegin(GL_POLYGON);

            glTexCoord2f(0, 0); glVertex3f(-1, +1, 0);

            glTexCoord2f(0, 1); glVertex3f(-1, -1, 0);

            glTexCoord2f(1, 1); glVertex3f(+1, -1, 0);

            glTexCoord2f(1, 0); glVertex3f(+1, +1, 0);

        glEnd();

    glPopMatrix();

    glBindTexture(GL_TEXTURE_2D, id2);///id2 for teapot

    glutSolidTeapot( 0.3 );

    glutSwapBuffers();

}

///void myInit()

GLuint myTexture(char * filename) ///貼圖需要它

{

    IplImage * img = cvLoadImage(filename); ///NOW OpenCV ///貼圖需要它

    cvCvtColor(img, img, CV_BGR2RGB);///convert color ///NOW OpenCV ///貼圖需要它

    GLuint id; ///貼圖需要它

    glEnable(GL_TEXTURE_2D); ///貼圖需要它

    glGenTextures(1, &id ); ///貼圖需要它

    glBindTexture(GL_TEXTURE_2D, id); ///貼圖需要它

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); ///貼圖需要它

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); ///貼圖需要它

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); ///貼圖需要它

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); ///貼圖需要它

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData); ///貼圖需要它

    return id;///貼圖需要它

}

int main(int argc, char **argv)

{

    ///IplImage * img = cvLoadImage("06160531.jpg");

    ///cvShowImage("opencv", img);

    ///cvWaitKey(0);///等你按按鍵

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);

    glutCreateWindow("GLUT");///之後

    ///建好GLUT視窗,可以開始準備 3D 貼圖 (要在create...MainLoop才能建貼圖)

    id1 = myTexture("06160531.jpg"); ///myInit();///我們的貼圖在這裡 ///貼圖需要它

    id2 = myTexture("06160531-1.jpg");

    id3 = myTexture("06160531-2.jpg");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMainLoop();///之前

}

17.讀模型進去了(02)

#include <GL/glut.h>
#include <opencv/highgui.h> ///OpenCV High GUI讀圖 ///貼圖需要它
#include <opencv/cv.h> ///OpenCV cvCvtColor() to convert color///貼圖需要它
///程式碼是對的, 但是沒有設定好include, lib, bin
GLuint id1, id2, id3;///NOW2 ///貼圖需要它
float a=0;

#include "glm.h"///呼叫外掛 ///glm需要它
GLMmodel * pmodel=NULL;///準備指標 ///glm需要它
GLMmodel * pmodel2=NULL;///準備指標 ///glm需要它
GLMmodel * pmodel3=NULL;///準備指標 ///glm需要它
GLMmodel * pmodel4=NULL;///準備指標 ///glm需要它

void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glEnable(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, id1);///id1 for background ///貼圖需要它
    glBegin(GL_POLYGON); ///貼圖需要它
        glTexCoord2f(0, 0); glVertex3f(-1, +1, 0); ///貼圖需要它
        glTexCoord2f(0, 1); glVertex3f(-1, -1, 0); ///貼圖需要它
        glTexCoord2f(1, 1); glVertex3f(+1, -1, 0); ///貼圖需要它
        glTexCoord2f(1, 0); glVertex3f(+1, +1, 0); ///貼圖需要它
    glEnd();///貼圖需要它

    if (!pmodel) { ///glm需要它
        pmodel = glmReadOBJ("body.obj"); ///glm需要它
        if (!pmodel) exit(0); ///glm需要它
        glmUnitize(pmodel); ///glm需要它
        glmFacetNormals(pmodel); ///glm需要它
        glmVertexNormals(pmodel, 90.0); ///glm需要它
    }

    glDisable(GL_TEXTURE_2D);
    glPushMatrix();
        glRotatef(a++, 0,1,0);
        glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);
    glPopMatrix();

    glutSwapBuffers();
}
///void myInit()
GLuint myTexture(char * filename) ///貼圖需要它
{
    IplImage * img = cvLoadImage(filename); ///NOW OpenCV ///貼圖需要它
    cvCvtColor(img, img, CV_BGR2RGB);///convert color ///NOW OpenCV ///貼圖需要它

    GLuint id; ///貼圖需要它
    glEnable(GL_TEXTURE_2D); ///貼圖需要它
    glGenTextures(1, &id ); ///貼圖需要它
    glBindTexture(GL_TEXTURE_2D, id); ///貼圖需要它
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); ///貼圖需要它
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); ///貼圖需要它
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); ///貼圖需要它
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); ///貼圖需要它
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData); ///貼圖需要它
    return id;///貼圖需要它
}
const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f }; ///glm需要它
const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f }; ///glm需要它
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; ///glm需要它
const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f }; ///glm需要它
int main(int argc, char **argv)
{
    ///IplImage * img = cvLoadImage("marvel.jpg");
    ///cvShowImage("opencv", img);
    ///cvWaitKey(0);///等你按按鍵
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
    glutCreateWindow("GLUT");///之後
    ///建好GLUT視窗,可以開始準備 3D 貼圖 (要在create...MainLoop才能建貼圖)
    id1 = myTexture("marvel.jpg"); ///myInit();///我們的貼圖在這裡 ///貼圖需要它
    id2 = myTexture("teapot.jpg");
    id3 = myTexture("square.jpg");

    glutDisplayFunc(display);
    glutIdleFunc(display);

    glEnable(GL_DEPTH_TEST);    ///glm需要它

    glEnable(GL_LIGHT0);  ///glm需要它
    glEnable(GL_NORMALIZE); ///glm需要它
    glEnable(GL_COLOR_MATERIAL); ///glm需要它
    glEnable(GL_LIGHTING); ///glm需要它

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient); ///glm需要它
    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse); ///glm需要它
    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular); ///glm需要它
    glLightfv(GL_LIGHT0, GL_POSITION, light_position); ///glm需要它


    glutMainLoop();///之前
}

18.最後的程式碼(02-2)

#include <GL/glut.h>
#include <opencv/highgui.h> ///OpenCV High GUI讀圖 ///貼圖需要它
#include <opencv/cv.h> ///OpenCV cvCvtColor() to convert color///貼圖需要它
///程式碼是對的, 但是沒有設定好include, lib, bin
GLuint id1, id2, id3;///NOW2 ///貼圖需要它
float a=0;

#include "glm.h"///呼叫外掛 ///glm需要它
GLMmodel * pmodel=NULL;///準備指標 ///glm需要它
GLMmodel * pmodel2=NULL;///準備指標 ///glm需要它
GLMmodel * pmodel3=NULL;///準備指標 ///glm需要它
GLMmodel * pmodel4=NULL;///準備指標 ///glm需要它

void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glEnable(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, id1);///id1 for background ///貼圖需要它
    glBegin(GL_POLYGON); ///貼圖需要它
        glTexCoord2f(0, 0); glVertex3f(-1, +1, -1); ///貼圖需要它
        glTexCoord2f(0, 1); glVertex3f(-1, -1, -1); ///貼圖需要它
        glTexCoord2f(1, 1); glVertex3f(+1, -1, -1); ///貼圖需要它
        glTexCoord2f(1, 0); glVertex3f(+1, +1, -1); ///貼圖需要它
    glEnd();///貼圖需要它

    if (!pmodel) { ///glm需要它
        pmodel = glmReadOBJ("body.obj"); ///glm需要它
        if (!pmodel) exit(0); ///glm需要它
        ///glmUnitize(pmodel); ///glm需要它
        glmFacetNormals(pmodel); ///glm需要它
        glmVertexNormals(pmodel, 90.0); ///glm需要它
    }

    glDisable(GL_TEXTURE_2D);
    glPushMatrix();
        glRotatef(a++, 0,1,0);
        glScalef(0.2, 0.2, 0.2);
        glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);
    glPopMatrix();

    if (!pmodel2) { ///glm需要它
        pmodel2 = glmReadOBJ("head.obj"); ///glm需要它
        if (!pmodel2) exit(0); ///glm需要它
        ///glmUnitize(pmodel2); ///glm需要它
        glmFacetNormals(pmodel2); ///glm需要它
        glmVertexNormals(pmodel2, 90.0); ///glm需要它
    }

    glDisable(GL_TEXTURE_2D);
    glPushMatrix();
        glRotatef(a, 0,1,0);
        glScalef(0.2, 0.2, 0.2);
        glmDraw(pmodel2, GLM_SMOOTH | GLM_MATERIAL);
    glPopMatrix();

    glutSwapBuffers();
}
///void myInit()
GLuint myTexture(char * filename) ///貼圖需要它
{
    IplImage * img = cvLoadImage(filename); ///NOW OpenCV ///貼圖需要它
    cvCvtColor(img, img, CV_BGR2RGB);///convert color ///NOW OpenCV ///貼圖需要它

    GLuint id; ///貼圖需要它
    glEnable(GL_TEXTURE_2D); ///貼圖需要它
    glGenTextures(1, &id ); ///貼圖需要它
    glBindTexture(GL_TEXTURE_2D, id); ///貼圖需要它
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); ///貼圖需要它
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); ///貼圖需要它
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); ///貼圖需要它
    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); ///貼圖需要它
    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData); ///貼圖需要它
    return id;///貼圖需要它
}
const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f }; ///glm需要它
const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f }; ///glm需要它
const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; ///glm需要它
const GLfloat light_position[] = { 2.0f, 5.0f, 5.0f, 0.0f }; ///glm需要它
int main(int argc, char **argv)
{
    ///IplImage * img = cvLoadImage("marvel.jpg");
    ///cvShowImage("opencv", img);
    ///cvWaitKey(0);///等你按按鍵
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);
    glutCreateWindow("GLUT");///之後
    ///建好GLUT視窗,可以開始準備 3D 貼圖 (要在create...MainLoop才能建貼圖)
    id1 = myTexture("06160531.jpg"); ///myInit();///我們的貼圖在這裡 ///貼圖需要它
    id2 = myTexture("06160531-1.jpg");
    id3 = myTexture("06160531-2.jpg");

    glutDisplayFunc(display);
    glutIdleFunc(display);

    glEnable(GL_DEPTH_TEST);    ///glm需要它

    glEnable(GL_LIGHT0);  ///glm需要它
    glEnable(GL_NORMALIZE); ///glm需要它
    glEnable(GL_COLOR_MATERIAL); ///glm需要它
    glEnable(GL_LIGHTING); ///glm需要它

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient); ///glm需要它
    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse); ///glm需要它
    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular); ///glm需要它
    glLightfv(GL_LIGHT0, GL_POSITION, light_position); ///glm需要它

    glMatrixMode(GL_PROJECTION); ///投影矩陣相關 戴好我們的正確度數的眼睛
    glLoadIdentity();  ///投影矩陣相關 戴好我們的正確度數的眼睛
    glOrtho(-1,+1, -1,+1, -100,+100); ///投影矩陣相關 戴好我們的正確度數的眼睛
    glMatrixMode(GL_MODELVIEW);  ///投影矩陣相關 切換回我們正確的矩陣

    glutMainLoop();///之前
}

複習:打光

複習:模型