week17

 

1.打光

#include <GL/glut.h>

void display(){

    glClearColor( 1,0,0,0);///視窗背景變紅色

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        glColor3f( 1,1,0 );///物件的顏色

        glutSolidTeapot( 0.3 ); ///身體

    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 )

{

    glutInit( &argc, argv);

    glutInitWindowSize(300,300);///視窗大小(正方形為佳)

    glutInitWindowPosition(700,200);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week17 review");

    glutDisplayFunc(display);

    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();

}

2. 增加手臂 調整角度

#include <GL/glut.h>

float angle=45;//手臂角度

void display(){

    glClearColor( 1,0,0,0);///視窗背景變紅色

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glColor3f( 1,1,0 );///物件的顏色

        glutSolidTeapot( 0.3 );

        glPushMatrix();

            glTranslatef(-0.3,0,0);///(3)把轉動的關節掛在肩上

           glRotatef(angle, 0,0,1 );///(2)轉動(之後可能很多行轉動在這)

           glTranslatef(-0.3,0.1,0);///(1)把旋轉的關節,放到畫面最中間

           glutSolidTeapot(0.3);///左手臂

         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 };

int main( int argc, char ** argv )

{

    glutInit( &argc, argv);

    glutInitWindowSize(300,300);///視窗大小(正方形為佳)

    glutInitWindowPosition(700,200);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week17 review");

    glutDisplayFunc(display);

    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();

}

3.用滑鼠控制手臂的角度

#include <GL/glut.h>

float angle=45;

float oldX=0;

void mouse(int button, int state, int x, int y){

    oldX = x;

}

void motion( int x, int y ){

    angle += x-oldX;

    oldX = x;

    glutPostRedisplay();

}

void display(){

    glClearColor( 1,0,0,0);///視窗背景變紅色

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glColor3f( 1,1,0 );///物件的顏色

        glutSolidTeapot( 0.3 );

        glPushMatrix();

            glTranslatef(-0.3,0,0);///(3)把轉動的關節掛在肩上

           glRotatef(angle, 0,0,1 );///(2)轉動(之後可能很多行轉動在這)

           glTranslatef(-0.3,0.1,0);///(1)把旋轉的關節,放到畫面最中間

           glutSolidTeapot(0.3);///左手臂

         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 };

int main( int argc, char ** argv )

{

    glutInit( &argc, argv);

    glutInitWindowSize(300,300);///視窗大小(正方形為佳)

    glutInitWindowPosition(700,200);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week17 review");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    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();

}

4.用按鍵控制關節移動

float angle[20]={};///先預設為0

float angleID=0;///看要先動哪個關節

void keyboard(unsigned char key, int x, int y){

    if(key=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

    if(key=='4') angleID=4;

    if(key=='5') angleID=5;

    if(key=='6') angleID=6;

}///用按鍵控制每個關節,

#include <stdio.h>

#include <GL/glut.h>

float angle[20]={};///大括號會自己補0

int angleID=0;

void keyboard(unsigned char key, int x, int y){

    if(key=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

    if(key=='4') angleID=4;

    if(key=='5') angleID=5;

    if(key=='6') angleID=6;

}///用按鍵控制每個關節

float oldX;

void mouse(int button, int state, int x, int y){

    oldX = x;

}

void motion( int x, int y ){

    angle[angleID] += x-oldX;

    oldX = x;

    glutPostRedisplay();

}

void display(){

    glClearColor( 1,0,0,0);///視窗背景變紅色

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

         glColor3f( 1,1,0 );

        glutSolidTeapot( 0.3 );///身體先註解掉身體,只看手臂

        glPushMatrix();///左半邊

            glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

            glRotatef(angle[0], 0,0,1);///(2)再轉動它(angle[0]--->按0鍵轉動)

            glTranslatef(-.3, 0.1, 0);///(1)移動旋轉中心,放正中心

            glutSolidTeapot(0.3);///左手臂

            glPushMatrix();

                glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

                glRotatef(angle[1], 0,0,1);///(2)再轉動它

                glTranslatef(-.3, 0, 0);///(1)移動旋轉中心,放正中心

                glutSolidTeapot(0.3);///左手肘

            glPopMatrix();

        glPopMatrix();

        glPushMatrix();///右半邊

            glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

            glRotatef(angle[2], 0,0,1);///(2)再轉動它

            glTranslatef(+.3, .1, 0);///(1)移動旋轉中心,放正中心

            glutSolidTeapot(0.3);///右手臂

            glPushMatrix();

                glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

                glRotatef(angle[3], 0,0,1);///(2)再轉動它

                glTranslatef(+.3, 0, 0);///(1)移動旋轉中心,放正中心

                glutSolidTeapot(0.3);///右手肘

            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 };

int main( int argc, char ** argv )

{

    glutInit( &argc, argv);

    glutInitWindowSize(300,300);///視窗大小(正方形為佳)

    glutInitWindowPosition(700,200);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week17 review");

    glutKeyboardFunc(keyboard);///加入keyboard 函式

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    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();

}

#include <stdio.h>

#include <GL/glut.h>

float angle[20]={};

int angleID=0;

FILE * fout = NULL;

FILE * fin = NULL;

void keyboard(unsigned char key, int x, int y){

    if(key=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

    if(key=='4') angleID=4;

    if(key=='5') angleID=5;

    if(key=='6') angleID=6;

    if(key=='s'){///存檔

        if( fout==NULL )fout = fopen("angle.txt","w+");///加檔案 write

        for(int i=0;i<20;i++)fprintf(fout,"%.2f",angle[i]);

        fprintf(fout,"\n");

        printf("save one line\n");

    }

    if( key=='r'){

        if( fin==NULL )fin = fopen("angle.txt","r");///讀取

        for(int i=0; i<20; i++) fscanf(fin, "%f", &angle[i]);

        glutPostRedisplay();///重畫畫面

        printf("read angle.txt\n");

    }

}///用按鍵控制每個關節

float oldX=0;

void mouse(int button, int state, int x, int y){

    oldX = x;

}

void motion( int x, int y ){

    angle[angleID] += x-oldX;

    oldX = x;

    glutPostRedisplay();

}

void display(){

    glClearColor( 1,0,0,0);///視窗背景變紅色

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

         glColor3f( 1,1,0 );

        glutSolidTeapot( 0.3 );///身體先註解掉身體,只看手臂

        glPushMatrix();///左半邊

            glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

            glRotatef(angle[0], 0,0,1);///(2)再轉動它

            glTranslatef(-.3, 0.1, 0);///(1)移動旋轉中心,放正中心

            glutSolidTeapot(0.3);///左手臂

            glPushMatrix();

                glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

                glRotatef(angle[1], 0,0,1);///(2)再轉動它

                glTranslatef(-.3, 0, 0);///(1)移動旋轉中心,放正中心

                glutSolidTeapot(0.3);///左手肘

            glPopMatrix();

        glPopMatrix();

        glPushMatrix();///右半邊

            glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

            glRotatef(angle[2], 0,0,1);///(2)再轉動它

            glTranslatef(+.3, .1, 0);///(1)移動旋轉中心,放正中心

            glutSolidTeapot(0.3);///右手臂

            glPushMatrix();

                glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

                glRotatef(angle[3], 0,0,1);///(2)再轉動它

                glTranslatef(+.3, 0, 0);///(1)移動旋轉中心,放正中心

                glutSolidTeapot(0.3);///右手肘

            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 };

int main( int argc, char ** argv )

{

    glutInit( &argc, argv);

    glutInitWindowSize(300,300);///視窗大小(正方形為佳)

    glutInitWindowPosition(700,200);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week17 review");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    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();

}

#include <stdio.h>

#include <GL/glut.h>

FILE * fout = NULL;

FILE * fin = NULL;

float angle[20]={}, angleOld[20], angleNew[20];

int angleID=0;

void timer(int t){

    glutTimerFunc( 50, timer, t+1);

    if(t%10==0){

        for(int i=0; i<20; i++) angleOld[i] = angleNew[i];

        if( fin==NULL ) fin = fopen("angle.txt", "r");

        for(int i=0; i<20; i++) fscanf(fin, "%f", &angleNew[i]);

        printf("read angle.txt\n");

    }

    float alpha = (t%10)/10.0;

    for(int i=0; i<20; i++) angle[i] = alpha*angleNew[i]+(1-alpha)*angleOld[i];

    glutPostRedisplay();///重畫畫面

}

void keyboard(unsigned char key, int x, int y){

    if(key=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

    if(key=='4') angleID=4;

    if(key=='5') angleID=5;

    if(key=='6') angleID=6;

     if(key=='p'){///Play播放

        glutTimerFunc(0, timer, 0);///一開始的第1個timer

    }

    if(key=='s'){///存檔

        if( fout==NULL )fout = fopen("angle.txt","w+");///加檔案 write

        for(int i=0;i<20;i++)fprintf(fout,"%.2f",angle[i]);

        fprintf(fout,"\n");

        printf("save one line\n");

    }

    if( key=='r'){

        if( fin==NULL )fin = fopen("angle.txt","r");///讀取

        for(int i=0; i<20; i++) fscanf(fin, "%f", &angle[i]);

        glutPostRedisplay();///重畫畫面

        printf("read angle.txt\n");

    }

}///用按鍵控制每個關節

float oldX=0;

void mouse(int button, int state, int x, int y){

    oldX = x;

}

void motion( int x, int y ){

    angle[angleID] += x-oldX;

    oldX = x;

    glutPostRedisplay();

}

void display(){

    glClearColor( 1,0,0,0);///視窗背景變紅色

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

         glColor3f( 1,1,0 );

        glutSolidTeapot( 0.3 );///身體先註解掉身體,只看手臂

        glPushMatrix();///左半邊

            glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

            glRotatef(angle[0], 0,0,1);///(2)再轉動它

            glTranslatef(-.3, 0.1, 0);///(1)移動旋轉中心,放正中心

            glutSolidTeapot(0.3);///左手臂

            glPushMatrix();

                glTranslatef(-.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

                glRotatef(angle[1], 0,0,1);///(2)再轉動它

                glTranslatef(-.3, 0, 0);///(1)移動旋轉中心,放正中心

                glutSolidTeapot(0.3);///左手肘

            glPopMatrix();

        glPopMatrix();

        glPushMatrix();///右半邊

            glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

            glRotatef(angle[2], 0,0,1);///(2)再轉動它

            glTranslatef(+.3, .1, 0);///(1)移動旋轉中心,放正中心

            glutSolidTeapot(0.3);///右手臂

            glPushMatrix();

                glTranslatef(+.3, 0, 0);///(3)再把轉動中的手臂,掛到肩上

                glRotatef(angle[3], 0,0,1);///(2)再轉動它

                glTranslatef(+.3, 0, 0);///(1)移動旋轉中心,放正中心

                glutSolidTeapot(0.3);///右手肘

            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 };

int main( int argc, char ** argv )

{

    glutInit( &argc, argv);

    glutInitWindowSize(300,300);///視窗大小(正方形為佳)

    glutInitWindowPosition(700,200);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week17 review");

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    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();

}

week16

 

複製week15的程式碼

#include <stdio.h>///可割可棄

#include <GL/glut.h>

float angle[20]={},diff=2;

int angleID=0;

int oldX=0;

void timer(int t){

    ///glutTimerFunc(30,timer,t+1);

    

}

void mouse(int button, int state,int x,int y){

    oldX = x;

}

void motion(int x,int y){

    angle[angle ID] += x - oldX;

    oldX = x;

    glutPostRedisplay();

}

void keyboard( unsigned char key, int x, int y){

    if(key=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glutSolidTeapot( 0.3 );///身體

        glPushMatrix();

            glTranslatef(-0.3,0,0);///掛在正確的地方

            glRotatef(angle[0],0,0,1);///旋轉

            glTranslatef(-0.3,0,0);///把關節旋轉中心放到畫面中心

            glutSolidTeapot( 0.3 );///左手臂

            glPushMatrix();

                 glTranslatef(-0.3,0,0);///掛在正確的地方

                 glRotatef(angle[1],0,0,1);///旋轉

                 glTranslatef(-0.3,0,0);///把關節旋轉中心放到畫面中心

                 glutSolidTeapot( 0.3 );///左手臂

            glPopMatrix();

         glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main( int argc, char ** argv )

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15 file");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutKeyboardFunc(keyboard);

    glutTimerFunc(0, timer ,0);

    glutDisplayFunc(display);

    glutMainLoop();

}

#include <stdio.h>

#include <GL/glut.h>

float angle[20]={}, diff=2;

int angleID=0; 

int oldX=0;

FILE * fout = NULL;

FILE * fin = NULL;

void timer( int t ){

    glutTimerFunc( 30, timer, t+1 );

    if( fin==NULL ) fin = fopen( "angle.txt", "r" );

    for(int i=0; i<20; i++) fscanf( fin, "%f", & angle[i] );

    glutPostRedisplay();

}

void mouse(int button, int state, int x, int y){

    oldX = x;

}

void motion(int x, int y){

    angle[angleID] += x - oldX;

    oldX = x;

    glutPostRedisplay();

    if(fout==NULL) fout=fopen("angle.txt", "w+");

    for(int i=0; i<20; i++) fprintf( fout, "%.1f ", angle[i]);

    fprintf( fout, "\n");

    for(int i=0; i<20; i++) printf( "%.1f ", angle[i]);

    printf( "\n");

}

void keyboard( unsigned char key, int x, int y){ 

    if(key=='0') angleID=0; 

    if(key=='1') angleID=1; 

    if(key=='2') angleID=2; 

    if(key=='3') angleID=3; 

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glutSolidTeapot( 0.3 );///身體

        glPushMatrix();///左半邊

            glTranslatef(-0.3,0,0);///(3)掛在正確的地方

            glRotatef(angle[0], 0,0,1);///(2)旋轉 ///Step05

            glTranslatef(-0.3,0,0);///(1)把關節旋轉中心放到畫面中心

            glutSolidTeapot( 0.3 );///左手臂(沒有重疊)

            glPushMatrix();

                glTranslatef(-0.3,0,0);///(3)掛在正確的地方

                glRotatef(angle[1], 0,0,1);///(2)旋轉 ///Step05

                glTranslatef(-0.3,0,0);///(1)把關節旋轉中心放到畫面中心

                glutSolidTeapot( 0.3 );///左手肘(重疊了)

            glPopMatrix();

        glPopMatrix();

        glPushMatrix();///右半邊

            glTranslatef(+0.3, 0,0 );

            glRotatef(-angle[2], 0,0,1);

            glTranslatef(+0.3, 0,0);

            glutSolidTeapot( 0.3 );///右手臂

            glPushMatrix();

                glTranslatef(+0.3, 0,0 );

                glRotatef(-angle[3], 0,0,1);

                glTranslatef(+0.3, 0,0);

                glutSolidTeapot( 0.3 );///右手肘

            glPopMatrix();

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main( int argc, char ** argv )

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15 file");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutKeyboardFunc(keyboard);

    glutTimerFunc(0, timer, 0);

    glutDisplayFunc(display);

    glutMainLoop();

}

#include <stdio.h>

#include <GL/glut.h>

float angle[20]={}, diff=2;

int angleID=0;

int oldX=0;

FILE * fout = NULL;

FILE * fin = NULL;

void timer( int t ){

    glutTimerFunc( 30, timer, t+1 );

    if( fin==NULL ) fin = fopen( "angle.txt", "r" );

    for(int i=0; i<20; i++) fscanf( fin, "%f", & angle[i] );

    glutPostRedisplay();

}

void mouse(int button, int state, int x, int y){

    oldX = x;

}

void motion(int x, int y){

    angle[angleID] += x - oldX;

    oldX = x;

    glutPostRedisplay();

   // if(fout==NULL) fout=fopen("angle.txt", "w+");

   // for(int i=0; i<20; i++) fprintf( fout, "%.1f ", angle[i]);

   // fprintf( fout, "\n");

   // for(int i=0; i<20; i++) printf( "%.1f ", angle[i]);

   // printf( "\n");

}

void keyboard( unsigned char key, int x, int y){

    if(key=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

    if(key=='s'){

         if(fout==NULL) fout=fopen("angle.txt", "w+");

         for(int i=0; i<20; i++) fprintf( fout, "%.1f ", angle[i]);

         fprintf( fout, "\n");

         for(int i=0; i<20; i++) printf( "%.1f ", angle[i]);

         printf( "\n");

    }

    if(key=='r'){

        if( fin==NULL ) fin = fopen( "angle.txt", "r" );

        for(int i=0; i<20; i++) fscanf( fin, "%f", & angle[i] );

        glutPostRedisplay();

    }

    if(key=='p'){

    }

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glutSolidTeapot( 0.3 );///身體

        glPushMatrix();///左半邊

            glTranslatef(-0.3,0,0);///(3)掛在正確的地方

            glRotatef(angle[0], 0,0,1);///(2)旋轉 ///Step05

            glTranslatef(-0.3,0,0);///(1)把關節旋轉中心放到畫面中心

            glutSolidTeapot( 0.3 );///左手臂(沒有重疊)

            glPushMatrix();

                glTranslatef(-0.3,0,0);///(3)掛在正確的地方

                glRotatef(angle[1], 0,0,1);///(2)旋轉 ///Step05

                glTranslatef(-0.3,0,0);///(1)把關節旋轉中心放到畫面中心

                glutSolidTeapot( 0.3 );///左手肘(重疊了)

            glPopMatrix();

        glPopMatrix();

        glPushMatrix();///右半邊

            glTranslatef(+0.3, 0,0 );

            glRotatef(-angle[2], 0,0,1);

            glTranslatef(+0.3, 0,0);

            glutSolidTeapot( 0.3 );///右手臂

            glPushMatrix();

                glTranslatef(+0.3, 0,0 );

                glRotatef(-angle[3], 0,0,1);

                glTranslatef(+0.3, 0,0);

                glutSolidTeapot( 0.3 );///右手肘

            glPopMatrix();

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main( int argc, char ** argv )

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15 file");

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutKeyboardFunc(keyboard);

    glutTimerFunc(0, timer, 0);

    glutDisplayFunc(display);

    glutMainLoop();

}

week15

 

3-1

#include <stdio.h> ///printf(),fprint()

int main(int argc,char**argv)

{

   FILE * fout = NULL;///檔案的指標 fout output用

   fout = fopen("檔名.txt","w+");///開檔,使用w+模式

   printf(         "Hello World\n");

   fprintf(fout,"Hello World\n");

}

3-2

(1)將freeglut/bin的freeglut.dll複製到專案目錄
(2)開啟Notepad++更改路徑為"."

#include <stdio.h>///可割可棄

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        glutSolidTeapot( 0.3 );///身體

        glutSolidTeapot( 0.3 );///左手臂(重疊了)

        glutSolidTeapot( 0.3 );///左手肘(重疊了)

    glutSwapBuffers();

}

int main( int argc, char ** argv )

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15 file");

    glutDisplayFunc(display);

    glutMainLoop();

}

利用timer改變angle，可讓手臂順利轉動

#include <stdio.h>

#include <GL/glut.h>

float angle=0,diff=2;

void timer(int t){

    glutTimerFunc(30,timer,t+1);

    angle += diff;

    if(angle>90) diff=-2;

    if(angle<0) diff=+2;

    glutPostRedisplay();

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        //glutSolidTeapot( 0.3 );///身體

        glPushMatrix();

            glTranslatef(-0.3,0,0);///掛在正確的地方

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

            glTranslatef(-0.3,0,0);///把關節旋轉中心放到畫面中心

            glutSolidTeapot( 0.3 );///左手臂

            glPushMatrix();

                ///glutSolidTeapot( 0.3 );///左手肘(重疊了)

            glPopMatrix();

         glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main( int argc, char ** argv )

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15 file");

    glutTimerFunc(0, timer ,0);

    glutDisplayFunc(display);

    glutMainLoop();

}

#include <GL/glut.h>

float angle=0,diff=2;

void timer(int t){

    glutTimerFunc(30,timer,t+1);

    angle += diff;

    if(angle>90) diff=-2;

    if(angle<0) diff=+2;

    glutPostRedisplay();

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glutSolidTeapot( 0.3 );///身體

        glPushMatrix();

            glTranslatef(-0.3,0,0);///掛在正確的地方

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

            glTranslatef(-0.3,0,0);///把關節旋轉中心放到畫面中心

            glutSolidTeapot( 0.3 );///左手臂

            glPushMatrix();

                 glTranslatef(-0.3,0,0);///掛在正確的地方

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

                 glTranslatef(-0.3,0,0);///把關節旋轉中心放到畫面中心

                 glutSolidTeapot( 0.3 );///左手臂

            glPopMatrix();

         glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main( int argc, char ** argv )#

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15 file");

    glutTimerFunc(0, timer ,0);

    glutDisplayFunc(display);

    glutMainLoop();

}

#include <stdio.h>///可割可棄

#include <GL/glut.h>

float angle[20]={},diff=2;

int angleID=0;

void timer(int t){

    glutTimerFunc(30,timer,t+1);

    angle[angleID] += diff;

    if(angle[angleID]>90) diff=-2;

    if(angle[angleID]<0) diff=+2;

    glutPostRedisplay();

}

void keyboard( unsigned char key, int x, int y){

    if(key=='1') angleID=1;

    if(key=='0') angleID=0;

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glutSolidTeapot( 0.3 );///身體

        glPushMatrix();

            glTranslatef(-0.3,0,0);///掛在正確的地方

            glRotatef(angle[0],0,0,1);///旋轉

            glTranslatef(-0.3,0,0);///把關節旋轉中心放到畫面中心

            glutSolidTeapot( 0.3 );///左手臂

            glPushMatrix();

                 glTranslatef(-0.3,0,0);///掛在正確的地方

                 glRotatef(angle[1],0,0,1);///旋轉

                 glTranslatef(-0.3,0,0);///把關節旋轉中心放到畫面中心

                 glutSolidTeapot( 0.3 );///左手臂

            glPopMatrix();

         glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main( int argc, char ** argv )

{

    glutInit( &argc, argv );

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week15 file");

    glutKeyboardFunc(keyboard);

    glutTimerFunc(0, timer ,0);

    glutDisplayFunc(display);

    glutMainLoop();

}

week14

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidSphere(0.3,30,30);

    glutSwapBuffers();

}

int main(int argc, char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutMainLoop();

}

#include <GL/glut.h>

///display()函式,其實display是函式指標

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    ///glutSolidSphere(0.3,30,30);///實心

    glutWireSphere(0.3,30,30);///線框

    glutSwapBuffers();

}

void timer(int t){///timer響起時,做你要做的事

    glClearColor(1,0,0,0);///清背景顏色:紅色

    display();///重畫畫面

}

int main(int argc, char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);///等多久

    glutMainLoop();

}

時間到 方塊開始轉動

#include <GL/glut.h>

float angle=0;

///display()函式,其實display是函式指標

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotatef(angle,0,0,1);

        glutSolidCube(0.3);///實心方塊

        ///glutSolidSphere(0.3,30,30);///實心圓形

        ///glutWireSphere(0.3,30,30);///線框

    glPopMatrix();

    glutSwapBuffers();

}

void timer(int t){///timer響起時,做你要做的事

    glutTimerFunc(30,timer,t+1);///起床,先設定新鬧鐘

    glClearColor(1,0,0,0);///清背景顏色:紅色

    angle++;

    display();///重畫畫面

}

int main(int argc, char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);///等多久

    glutMainLoop();

}

時間到 方塊左右轉

#include <GL/glut.h>

float angle=0;

///display()函式,其實display是函式指標

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glRotatef(angle,0,0,1);

        glutSolidCube(0.3);///實心方塊

        ///glutSolidSphere(0.3,30,30);///實心圓形

        ///glutWireSphere(0.3,30,30);///線框

    glPopMatrix();

    glutSwapBuffers();

}

int diff=2;

void timer(int t){///timer響起時,做你要做的事

    glutTimerFunc(30,timer,t+1);///起床,先設定新鬧鐘

    glClearColor(1,0,0,0);///清背景顏色:紅色

    if(angle>90)diff=-2;

    if(angle<0)diff=+2;

    angle+=diff;

    ///angle++;

    display();///重畫畫面

}

int main(int argc, char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);///等多久

    glutMainLoop();

}

#include <GL/glut.h>

float angle=0;

///display()函式,其實display是函式指標

void drawArm1(){

    glPushMatrix();

        glScalef(1,0.5,0.5);///變細長的手臂

        glColor3f(0,1,0); glutSolidCube(0.2);

    glPopMatrix();

}

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glColor3f(1,1,1); glutSolidCube(0.4);///白色的身體

        glPushMatrix();

            glTranslatef(-0.2,0.2,0);///(3)掛上肩膀

            glRotatef(angle,0,0,1);///(2)轉動

            glTranslatef(-0.1,0,0);///(1)把旋轉中心(關節)先移動到畫面最中心

            drawArm1();///綠色的手臂

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int diff=2;

void timer(int t){///timer響起時,做你要做的事

    glutTimerFunc(30,timer,t+1);///起床,先設定新鬧鐘

    ///glClearColor(1,0,0,0);///清背景顏色:紅色

    if(angle>90)diff=-2;

    if(angle<0)diff=+2;

    angle+=diff;

    ///angle++;

    display();///重畫畫面

}

int main(int argc, char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week14 timer");

    glutDisplayFunc(display);

    glutTimerFunc(3000,timer,0);///等多久

    glutMainLoop();

}

 

week13

 

#include <opencv/highgui.h> 

#include <opencv/cv.h>

#include <GL/glut.h>

GLuint id1, id2; 

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); 

    cvCvtColor(img,img, CV_BGR2RGB); 

    glEnable(GL_TEXTURE_2D); 

    GLuint id; 

    glGenTextures(1, &id); 

    glBindTexture(GL_TEXTURE_2D, id); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); 

    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);

    glBindTexture(GL_TEXTURE_2D, id1);

    glutSolidTeapot(0.3);

    glBindTexture(GL_TEXTURE_2D, id2);

    glBegin(GL_POLYGON);

        glTexCoord2f( 0, 0 ); glVertex2f( -1, -1 );

        glTexCoord2f( 0, 1 ); glVertex2f( -1, +1 );

        glTexCoord2f( 1, 1 ); glVertex2f( +1, +1 );

        glTexCoord2f( 1, 0 ); glVertex2f( +1, -1 );

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow(" Week13 ");

    glutDisplayFunc(display);

    id1 = myTexture("Diffuse.jpg");

    id2 = myTexture("bg.jpg");

    glEnable(GL_DEPTH_TEST);

    glutMainLoop();

}

1-1. hackmd.io/@jsyeh/opengl 剪貼範例

1-2 OpenCV  安裝 Setting/Compiler

Search directories/Compiler C:\OpenCV2.1\include 
Search directories/Linker C:\OpenCV2.1\lib
;inker setting cv210 cxcore210 highgui210

1-3 把貼圖放入main.cpp

1-4 圖檔放入 桌面/freeglut/bin

2-1 把 freeglut\bin 的 freeglut.dll 複製到08160572_week13

    Diffuse.jpg 及 bg.jpg 移到08160572_week13

2-2 用 Notepad++把08160572_week13\08160572_week13.cbp 打開

    兩個working_dir 要改成 "."  再存檔

2-3 CodeBlocks會出現 Reload按Yes

3-1 source.zip (glm.h glm.c--->glm.cpp, transformation.c)

3-2  gundam還沒切開.zip Gundam.obj Gundam.mtl Diffuse.jpg 加入目錄

3-3  把 glm.cpp 加入程式 Add File

3-4 複製transformation.c的程式

#include <opencv/cv.h>

#include <GL/glut.h>

#include "glm.h"

GLMmodel* pmodel = NULL;

void

drawmodel(void)

{

    if (!pmodel) {

pmodel = glmReadOBJ("Gundam.obj");

if (!pmodel) exit(0);        (改檔名)

glmUnitize(pmodel);

glmFacetNormals(pmodel);

glmVertexNormals(pmodel, 90.0);

    }

    glmDraw(pmodel, GLM_SMOOTH | GLM_TEXTURE);

}                                                                (GLM_MATERIAL)

GLuint id1, id2; 

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); 

    cvCvtColor(img,img, CV_BGR2RGB); )

    glEnable(GL_TEXTURE_2D); 

    GLuint id;

    glGenTextures(1, &id); 

    glBindTexture(GL_TEXTURE_2D, id); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

    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);

    glBindTexture(GL_TEXTURE_2D, id1);

    glutSolidTeapot(0.3);

    glBindTexture(GL_TEXTURE_2D, id2);

    glBegin(GL_POLYGON);

        glTexCoord2f( 0, 0 ); glVertex2f( -1, -1 );

        glTexCoord2f( 0, 1 ); glVertex2f( -1, +1 );

        glTexCoord2f( 1, 1 ); glVertex2f( +1, +1 );

        glTexCoord2f( 1, 0 ); glVertex2f( +1, -1 );

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow(" Week13 ");

    glutDisplayFunc(display);

    id1 = myTexture("Diffuse.jpg");

    id2 = myTexture("bg.jpg");

    glEnable(GL_DEPTH_TEST);

    glutMainLoop();

}

3-5-1 茶壺改成鋼彈的模型

 註解glutSolidTeapot(0.3); 加入drawmodel();

#include <opencv/cv.h>

#include <GL/glut.h>

#include "glm.h"

GLMmodel* pmodel = NULL;

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; 

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); 

    cvCvtColor(img,img, CV_BGR2RGB); )

    glEnable(GL_TEXTURE_2D); 

    GLuint id;

    glGenTextures(1, &id); 

    glBindTexture(GL_TEXTURE_2D, id); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

    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);

    glBindTexture(GL_TEXTURE_2D, id1);

    drawmodel();///glutSolidTeapot(0.3); 

    glBindTexture(GL_TEXTURE_2D, id2);

    glBegin(GL_POLYGON);

        glTexCoord2f( 0, 0 ); glVertex2f( -1, -1 );

        glTexCoord2f( 0, 1 ); glVertex2f( -1, +1 );

        glTexCoord2f( 1, 1 ); glVertex2f( +1, +1 );

        glTexCoord2f( 1, 0 ); glVertex2f( +1, -1 );

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow(" Week13 ");

    glutDisplayFunc(display);

    id1 = myTexture("Diffuse.jpg");

    id2 = myTexture("bg.jpg");

    glEnable(GL_DEPTH_TEST);

    glutMainLoop();

}

3-5-2 用小畫家翻轉(180度)Diffuse.jpg圖檔

4-1 翻轉模型 將模型轉到正面

#include <opencv/highgui.h> 

#include <opencv/cv.h>

#include <GL/glut.h>

#include "glm.h"

GLMmodel* pmodel = NULL;

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; 

int myTexture(char * filename)

{

    IplImage * img = cvLoadImage(filename); 

    cvCvtColor(img,img, CV_BGR2RGB); 

    glEnable(GL_TEXTURE_2D);

    GLuint id;

    glGenTextures(1, &id); 

    glBindTexture(GL_TEXTURE_2D, id); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); 

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, img->width, img->height, 0, GL_RGB, GL_UNSIGNED_BYTE, img->imageData);

    return id;

}

float angle=180;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glBindTexture(GL_TEXTURE_2D, id1);

    glPushMatrix();

        glRotatef(angle,0,1,0);

    drawmodel();///glutSolidTeapot(0.3);

    glPopMatrix();

    glBindTexture(GL_TEXTURE_2D, id2);

    glBegin(GL_POLYGON);

        glTexCoord2f( 0, 0 ); glVertex2f( -1, -1 );

        glTexCoord2f( 0, 1 ); glVertex2f( -1, +1 );

        glTexCoord2f( 1, 1 ); glVertex2f( +1, +1 );

        glTexCoord2f( 1, 0 ); glVertex2f( +1, -1 );

    glEnd();

    glutSwapBuffers();

}

int main(int argc, char** argv)

{

    glutInit( &argc, argv );

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow(" Week13 ");

    glutDisplayFunc(display);

    id1 = myTexture("Diffuse.jpg");

    id2 = myTexture("bg.jpg");

    glEnable(GL_DEPTH_TEST);

    glutMainLoop();

}