Week12_魚筆記

作業一

3D TRT 轉動

1.到http://www.cmlab.csie.ntu.edu.tw/~jsyeh/3dcg10下載data、windows、glut32.dll

2..解壓縮到windows資料夾(如下圖)

下載data.zip(解壓縮到桌面\移到window資料夾裡\data\mtlobj)
        window.zip(解壓縮到桌面並建一個新的資料夾window\window\Tranformation.exe)
        glut32.dll(解壓縮到桌面\移到window資料夾裡\glut32.dll)
        source.zip(解壓縮到桌面\移到window資料夾裡\source)

3.開啟Projection

4.試著調整gluLookAt(eyeX,eyeY,eyeZ,    ///攝影機

                                      centerX,centerY,centerZ, 

                                      upX,upY,upZ)  

 

作業二

矩陣 投影矩陣

攝影機運鏡

1.開啟04160011_hw1_project.zip 成功執行後如圖下

#include <GL/glut.h>

float eyeX=0, eyeY=0, eyeZ=1;

float centerX=0, centerY=0, centerZ=0;

float upX=0, upY=1, upZ=0;

static void display(void)

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3d(1,0,0);

    glPushMatrix();

        gluLookAt(eyeX, eyeY, eyeZ,

                  centerX, centerY, centerZ,

                  upX, upY, upZ);

        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 };

/* Program entry point */

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

{

    glutInit(&argc, argv);

    glutInitWindowSize(640,480);

    glutInitWindowPosition(10,10);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    ///glutReshapeFunc(resize);

    glutDisplayFunc(display);

    ///glutKeyboardFunc(key);

    ///glutIdleFunc(idle);

    glClearColor(1,1,1,1);

    ///glEnable(GL_CULL_FACE);

    ///glCullFace(GL_BACK);

    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);

    glutMainLoop();

    return EXIT_SUCCESS;

}

        

2.修改gluLookAt(eyeX,eyeY,eyeZ  看看茶壺的變化(更改紅色部分的數值)

#include <GL/glut.h>

float eyeX=0, eyeY=0, eyeZ=0.6;

float centerX=0, centerY=0.5, centerZ=0;

float upX=0, upY=1, upZ=0;

static void display(void)

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3d(1,0,0);

    glPushMatrix();

        gluLookAt(eyeX, eyeY, eyeZ,

                  centerX, centerY, centerZ,

                  upX, upY, upZ);

        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 };

/* Program entry point */

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

{

    glutInit(&argc, argv);

    glutInitWindowSize(640,480);

    glutInitWindowPosition(10,10);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    ///glutReshapeFunc(resize);

    glutDisplayFunc(display);

    ///glutKeyboardFunc(key);

    ///glutIdleFunc(idle);

    glClearColor(1,1,1,1);

    ///glEnable(GL_CULL_FACE);

    ///glCullFace(GL_BACK);

    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);

    glutMainLoop();

    return EXIT_SUCCESS;

}

3.改gluPerspective(fov , 1,  near, far) ///fov為視野角, 1為xy比例

不讓茶壺旋轉時破碎

#include <GL/glut.h>

#include <math.h>

float eyeX=1, eyeY= 0, eyeZ= 0;

float centerX=0, centerY=0, centerZ=0;

float upX=0, upY=1, upZ=0;

float angle=0;

static void display(void)

{

    glMatrixMode(GL_PROJECTION);

    glLoadIdentity(); ///備份矩陣

    gluPerspective(60, 1, 0.001, 10000);   ///讓茶壺不會因為旋轉而破碎  透視矩陣

    glMatrixMode(GL_MODELVIEW);

    angle+=0.01;

    eyeX=cos(angle); eyeZ=sin(angle);

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3d(1,0,0);

    glPushMatrix();

        gluLookAt(eyeX, eyeY, eyeZ,

                  centerX, centerY, centerZ,

                  upX, upY, upZ);

        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 };

/* Program entry point */

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

{

    glutInit(&argc, argv);

    glutInitWindowSize(640,480);

    glutInitWindowPosition(10,10);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    ///glutReshapeFunc(resize);

    glutDisplayFunc(display);

    ///glutKeyboardFunc(key);

    ///glutIdleFunc(idle);

    glutIdleFunc(display);

    glClearColor(1,1,1,1);

    ///glEnable(GL_CULL_FACE);

    ///glCullFace(GL_BACK);

    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);

    glutMainLoop();

    return EXIT_SUCCESS;

}

 

作業三

會動的機器人

1.複製茶壺更改其位置 再讓他旋轉

(茶壺的手舉放)

#include <GL/glut.h>

#include <math.h>

float eyeX=0, eyeY= 0, eyeZ= 2;

float centerX=0, centerY=0, centerZ=0;

float upX=0, upY=1, upZ=0;

float angle=0, dir=1;;

static void display(void)

{

    glMatrixMode(GL_PROJECTION);

    glLoadIdentity();

    gluPerspective(60, 1, 0.001, 10000);

    glMatrixMode(GL_MODELVIEW);

    angle+=dir;

    if(angle>60) dir=-dir;

    if(angle<0) dir=-dir; ///讓手臂轉到一定角度後即迴轉

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3d(1,0,0);

    glPushMatrix();

        gluLookAt(eyeX, eyeY, eyeZ,

                  centerX, centerY, centerZ,

                  upX, upY, upZ);

        glPushMatrix();

            glColor3f(1,0,0);

            glutSolidTeapot(0.3);///head

            glPushMatrix();

                glTranslatef(0, -0.3, 0); 

                glColor3f(1,1,1);

                glutSolidTeapot(0.3);///body

                glPushMatrix();

                    ///glTranslatef(0.6,0,0);///old rotate

                    glTranslatef(0.3,0,0);/// T 掛上去

                    glRotatef(angle, 0,0,1);///R 旋轉

                    glTranslatef(0.3,0,0);/// T 釘旋轉中心

                    glutSolidTeapot(0.3);///right upper arm

                    glPushMatrix();

                        glTranslatef(0.3, 0,0);///T

                        glRotatef(angle, 0,0,1);///R

                        glTranslatef(0.3, 0,0);///T

                        glutSolidTeapot(0.3);///right lower arm

                    glPopMatrix();

                glPopMatrix();

                glPushMatrix();

                    ///glTranslatef(0.6,0,0);///old rotate

                    glTranslatef(-0.3,0,0);/// T

                    glRotatef(-angle, 0,0,1);///R

                    glTranslatef(-0.3,0,0);/// T

                    glutSolidTeapot(0.3);///left upper arm

                    glPushMatrix();

                        glTranslatef(-0.3, 0,0);///T

                        glRotatef(-angle, 0,0,1);///R

                        glTranslatef(-0.3, 0,0);///T

                        glutSolidTeapot(0.3);///left lower arm

                    glPopMatrix();

                glPopMatrix();

            glPopMatrix();

        glPopMatrix();

    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 };

/* Program entry point */

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

{

    glutInit(&argc, argv);

    glutInitWindowSize(640,480);

    glutInitWindowPosition(10,10);

    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("GLUT Shapes");

    ///glutReshapeFunc(resize);

    glutDisplayFunc(display);

    ///glutKeyboardFunc(key);

    ///glutIdleFunc(idle);

    glutIdleFunc(display);

    glClearColor(1,1,1,1);

    ///glEnable(GL_CULL_FACE);

    ///glCullFace(GL_BACK);

    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);

    glutMainLoop();

    return EXIT_SUCCESS;

}