DTang---Week10_3D模型

  step01-1_下載上課用檔案

上老師的網站( https://jsyeh.org/3dcg10/ )下載 

下載檔案及名稱：1. data.zip、2. win32.zip、3. glut32.dll

解壓縮

windows.zip => 獨立解出一個資料夾

data.zip => 將data解壓縮到window資料夾內

------>transformation.exe

week10，3D模型介紹

1. obj檔

2. mtl檔

---------------------------------------------------------------------------------------------------------------------

#include<GL/glut.h>

#include"glm.h"

GLMmodel * pmodel =NULL;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    if( pmodel == NULL )

    {

        pmodel = glmReadOBJ( "Al.obj" );

        glmUnitize( pmodel );

        glmFacetNormals( pmodel );

        glmVertexNormals( pmodel, 90 );

    }

    glmDraw( pmodel, GLM_MATERIAL);

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week09 texture");

    glutDisplayFunc(display);

    glutMainLoop();

}

-------------------------------------------------------------------------------------------------------------

來這裡https://gist.github.com/jsyeh下在texture的範例code

#include<GL/glut.h>

#include"glm.h"

#include <opencv/highgui.h>

#include <opencv/cv.h>

#include <GL/glut.h>

GLMmodel * pmodel =NULL;

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);

    if( pmodel == NULL )

    {

        pmodel = glmReadOBJ( "Gundam.obj" );

        glmUnitize( pmodel );

        glmFacetNormals( pmodel );

        glmVertexNormals( pmodel, 90 );

    }

    glmDraw( pmodel, GLM_MATERIAL|GLM_TEXTURE);

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week10");

    myTexture("Diffuse.jpg");

    glutDisplayFunc(display);

    glutMainLoop();

}