欸幹你看，是圖學欸Week08

下載安裝OpenCV-2.1.0

codeblock--Setting--Complier

Search directories--Complier--c:\OpenCV2.1\include

Linker--c:\OpenCV2.1\lib

Linker Settings

cv2210  cxcore210  highgui210

#include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可

#include <opencv/cv.h>

#include <GL/glut.h>

GLuint id1, id2; ///TODO:增加2個 貼圖ID

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);

    glBindTexture(GL_TEXTURE_2D, id1);

    glutSolidTeapot(0.3);

    glBindTexture(GL_TEXTURE_2D, id2);

    glBegin(GL_POLYGON);

        glTexCoord2f( 0, 0 ); glVertex2f( +1, +1 );

        glTexCoord2f( 0, 1 ); glVertex2f( +1, -1 );

        glTexCoord2f( 1, 1 ); glVertex2f( -1, -1 );

        glTexCoord2f( 1, 0 ); glVertex2f( -1, +1 );

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow(" Week08 ");

    glutDisplayFunc(display);

    id1 = myTexture("name.jpg");

    id2 = myTexture("name.jpg");

    glEnable(GL_DEPTH_TEST);

    glutMainLoop();

}

讓背景變成另一張的圖片

讓海豚變材質

#include <opencv/highgui.h> ///使用 OpenCV 2.1 比較簡單, 只要用 High GUI 即可#include <opencv/cv.h>#include <GL/glut.h>GLuint id1, id2; ///TODO:增加2個 貼圖IDint 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);
    glBindTexture(GL_TEXTURE_2D, id1);    glutSolidTeapot(0.3);
    glBindTexture(GL_TEXTURE_2D, id2);    glBegin(GL_POLYGON);        glTexCoord2f( 0, 0 ); glVertex2f( +1, +1 );        glTexCoord2f( 0, 1 ); glVertex2f( +1, -1 );        glTexCoord2f( 1, 1 ); glVertex2f( -1, -1 );        glTexCoord2f( 1, 0 ); glVertex2f( -1, +1 );    glEnd();    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 );    glutCreateWindow(" Week08 ");    glutDisplayFunc(display);
    id1 = myTexture("A.jpg");    id2 = myTexture("sea.jpg");    glEnable(GL_DEPTH_TEST);
    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();}讓茶壺有陰影