2021電腦圖學二甲: 電圖的3Dweek 11

2021年5月5日星期三

電圖的3Dweek 11

Moodle下載 windows.zip data.zip source.zip

解壓縮到資料夾

把 windows/glm.c&glm.h&transformation.c複製到glut專案資料夾中

glm.c改成 glm.cpp

tansformation.c用notepad++打開複製

貼到專案中 main.cpp

將 glm.cpp加入專案中

把data.zip中的檔案放到freeglut/bin

就能解決閃退問題

全部刪掉換成

程式碼

#include "glm.h"
GLMmodel* pmodel = NULL;
void
drawmodel(void)
{
    if (!pmodel) {
    pmodel = glmReadOBJ("data/porsche.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);///清空
    drawmodel();///glutSolidTeapot(0.3)
    glutSwapBuffers();
}
int main(int argc, char *argv[])///main()函式
{
    glutInit(&argc, argv);///(1)Init初始化GLUT
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);///(2)Init初始化 Display 的功能
    glutCreateWindow("Week11 3D模型");///(3)建立GLUT視窗

    glutDisplayFunc(display);///(4)準備display()函式
    glutMainLoop();///(5)主要程式
}

就有圖形了

加上旋轉圖

加上Week08的打光

程式碼

#include "glm.h"
GLMmodel* pmodel = NULL;
void
drawmodel(void)
{
    if (!pmodel) {
    pmodel = glmReadOBJ("data/porsche.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);///清空
    glPushMatrix();
        glRotatef(180,0,1,0);
        drawmodel();///glutSolidTeapot(0.3)
    glPopMatrix();
    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[])///main()函式
{
    glutInit(&argc, argv);///(1)Init初始化GLUT
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);///(2)Init初始化 Display 的功能
    glutCreateWindow("Week11 3D模型");///(3)建立GLUT視窗

    glEnable(GL_DEPTH_TEST);深度偵測
    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);

    glutDisplayFunc(display);///(4)準備display()函式
    glutMainLoop();///(5)主要程式
}