06161082_w16

<貼上材質>
<安裝opencv 2.1>
opencv2.1下載網址:
https://sourceforge.net/projects/opencvlibrary/files/opencv-win/2.1/

1.下載Opencv2.1.0-windows32-vs2008.exe>安裝選項選擇 Add OpenCV to the systeam PATH for all users
2.打開Build Options>Search directories>Compiler加入位置C:\OpenCV2.1\include
                                                                >Linker加入位置C:\OpenCV2.1\lib
   Linker settings>加入librarise:cxcore210、cv210、highgui210
3.放入圖片pooh_bear.jpg至C:\Users\user\Desktop\freeglut\bin
4.打開codeblocks>file>new>project>glut project

貼上程式碼:

#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("pooh_bear.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("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)
    myInit();///我們的貼圖在這裡

    glutDisplayFunc(display);

    glutMainLoop();///之前

}

執行結果

<多個材質>
輸入程式碼
#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("pooh_bear.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("pooh_bear.jpg"); ///myInit();///我們的貼圖在這裡
    id2 = myTexture("6a00d8341c730253ef01b7c70ce322970b.jpg");
    id3 = myTexture("Winnie-The-Pooh_tcm30-532813.jpg");

    glutDisplayFunc(display);
    glutIdleFunc(display);

    glutMainLoop();///之前
}

執行結果