橘貓(電圖小筆記_week13)

讀入剛彈模型與背景

前言:

今天開始了遠端教學，不太習慣，加上電腦有些設定跑掉了，花了一些時間...
最後看截圖打程式碼...以下是今天的程式碼!

程式碼:

#include <opencv/highgui.h> ///使用 OpenCV 2.1的 highgui外掛 

#include <opencv/cv.h> ///使用 OpenCV 2.1的 cv外掛 

#include <GL/glut.h>

#include "glm.h" ///使用glm外掛

GLMmodel * pmodel = NULL; ///glm模型的指標

void drawmodel(void)

{

    if (!pmodel) {

pmodel = glmReadOBJ("gundam.obj");

if (!pmodel) exit(0);

glmUnitize(pmodel);

glmFacetNormals(pmodel);

glmVertexNormals(pmodel, 90.0);

    }

    glmDraw(pmodel, GLM_SMOOTH | GLM_TEXTURE);

}

GLuint id1, id2; ///TODO:增加2個 貼圖ID

int myTexture(char * filename)

{

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

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

    glEnable(GL_TEXTURE_2D); ///GL開啟貼圖功能

    GLuint id; ///準備一個貼圖ID

    glGenTextures(1, &id); ///產生1個貼圖後面放貼圖ID

    glBindTexture(GL_TEXTURE_2D, id); ///綁定bind後面放貼圖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()//顯示

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glBindTexture(GL_TEXTURE_2D, id1);

    glPushMatrix();

        glRotatef(angle,0,1,0);

        drawmodel();

    glPopMatrix();

    glBindTexture(GL_TEXTURE_2D, id2);

    glBegin(GL_POLYGON);

        glTexCoord2f( 0, 0 ); glVertex3f( -1, -1,0.8 );

        glTexCoord2f( 0, 1 ); glVertex3f( -1, +1 ,0.8 );

        glTexCoord2f( 1, 1 ); glVertex3f( +1, +1 ,0.8);

        glTexCoord2f( 1, 0 ); glVertex3f( +1, -1 ,0.8);

    glEnd();

    glutSwapBuffers();

    angle++;

}

int main(int argc, char** argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow(" Week13 ");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    id1 = myTexture("Diffuse.jpg");

    id2 = myTexture("bg.jpg");

    glEnable(GL_DEPTH_TEST);

    glutMainLoop();

}