李先生week06

 1.opengl模擬考10題測驗網址(https://jsyeh.org/gl/)

2.從上課軟體下載freeglut

 3.將壓縮檔解壓到桌面

4.點開freeglut後復製其連結

5.點開lib後將freeglut.a復製

6.改名為libglut32.a (124KB)

7.到codeblock開新的專案 file > project,(當名為week06-0_sample)

8.將const8行複製貼上

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 };

9.12+2行貼上

glEnable(GL_DEPTH_TEST);

    glDepthFunc(GL_LESS);

    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);

10.新稱專案並把上周11行程式碼修改進去

11.修改程式碼讓茶壺亮一點

const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };//把第三個5改成-5

12.改成黃的

13.到老師的網站(https://jsyeh.org/3dcg10/)

 14.下載data,win32,source

15.解壓縮data.zip,window.zip,source.zip

16.將data資料夾丟到window裡面(解壓後的檔案)

17.打開Light Material

18.新增專案week06-2_lightning_glNormal

19.新增專案week06-3_glm_obj_model

20.貼上剛剛的11行程式碼

21.將glm.h,glm.c放到week06-3_glm_obj_model目錄裡,glm.c改黨名glm.cpp

22.將glm.cpp檔案加到week06-3

23.porsche

23.al

#include <GL/glut.h>

#include "glm.h"

GLMmodel* pmodel = NULL;

void

drawmodel(void)

{

    if (!pmodel) {

pmodel = glmReadOBJ("data/Al.obj");

if (!pmodel) exit(0);

glmUnitize(pmodel);

glmFacetNormals(pmodel);

glmVertexNormals(pmodel, 90.0);

    }

    glmDraw(pmodel, GLM_SMOOTH | GLM_MATERIAL);

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    drawmodel();

    glutSwapBuffers();

}

int main(int argc,char*argv[])

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week06_lighting");

    glutDisplayFunc(display);

    glutMainLoop();

}