week14,02161095,陳薇亘

改變點座標(0,1,0)改(0,0,1)-->對著z軸轉動(本來對著瘠髓--->對鈕扣)

交換Rotatef和Translatef結果轉動點是對著手旋轉

打光
#include <GL/glut.h> ///GL最好用大寫比較不會出bug
void display()
{
    GLfloat pos[]={0,0,-200,0}; ///打光座標
    glLightfv(GL_LIGHT0,GL_POSITION,pos);
    glEnable(GL_LIGHT0);
    glEnable(GL_LIGHTING); ///打光

    glEnable(GL_DEPTH_TEST);
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); ///打畫面清乾淨

    glutSolidTeapot(0.5);
    glFlush();
}
int main(int argc, char **argv)
{
    glutInit(&argc,argv);

    glutCreateWindow("TRT");
    glutDisplayFunc(display);

    glutMainLoop();
}

#include <GL/glut.h>

float angle=0;///預設角度

void display()

{

    GLfloat pos[]={0,0,-200,0};

    glLightfv(GL_LIGHT0,GL_POSITION,pos);

    glEnable(GL_LIGHT0);

    glEnable(GL_LIGHTING);

    glEnable(GL_DEPTH_TEST);

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

      ////////////////關節

    glTranslatef(0.6,0.2,0);///4.將會轉動的茶壺往右上，掛上去

    glRotatef(angle,0,0,1);///3.固定然後以點為基準轉動

    glTranslatef(0.3,0,0);///2.把會茶向右移

    glutSolidTeapot(0.3);///1.畫出茶壺

    glPopMatrix();

    glutSolidTeapot(0.5);

    glFlush();

}

void timer(int t)///以時間為基準對角度做迴圈

{

    glutTimerFunc(20,timer,t+1);

    angle++;

    glutPostRedisplay();

}

int main(int argc, char **argv)

{

    glutInit(&argc,argv);

    glutCreateWindow("TRT");

    glutDisplayFunc(display);

    glutTimerFunc(20,timer,0);

    glutMainLoop();

}

#include <GL/glut.h>

float angle=0;

void drawBody()///身體方塊大小設定

{

    glPushMatrix();

    glScalef(1,0.5,0.5);

    glutSolidCube(1);

    glPopMatrix();

}

void drawArm()///手臂方塊大小設定

{

    glPushMatrix();

    glScalef(0.8,0.3,0.3);

    glutSolidCube(1);

    glPopMatrix();

}

void display()

{

    GLfloat pos[]={0,0,-200,0};

    glLightfv(GL_LIGHT0,GL_POSITION,pos);

    glEnable(GL_LIGHT0);

    glEnable(GL_LIGHTING);

    glEnable(GL_DEPTH_TEST);

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef(0.5,0.0,0);

    glRotatef(angle,0,0,1);

    glTranslatef(0.3,0,0);

    drawArm();

    glPopMatrix();

    drawBody();

    glFlush();

}

void timer(int t)

{

    glutTimerFunc(20,timer,t+1);

    angle++;

    glutPostRedisplay();

}

int main(int argc, char **argv)

{

    glutInit(&argc,argv);

    glutCreateWindow("TRT");

    glutDisplayFunc(display);

    glutTimerFunc(20,timer,0);

    glutMainLoop();

}

上面多設定
float oldX=0;oldY=y;
 void motion(int x,int y)
{
angel -=Y-oldY;
oldY=y;oldX=x;
}
void mouse(int botton,int state,int x,int y)
{
if(state==GLUT_DOWN){oldX=x;oldY=y;}
下面多設定
glutMouseFunc(mouse);
glutMotionFunc(motion);

做右邊的上手臂和下手臂

glPushMatrix();///下

    glTranslatef(0.5,0,0);

    glRotatef(angle,0,0,1);

    glTranslatef(0.25,0,0);

    drawArm();

 glPopMatrix();

glPushMatrix();///上

    glTranslatef(0.25,0.2,0);

    glRotatef(angle,0,0,1);

    glTranslatef(0.25,0,0);

    drawArm();

 glPopMatrix();

坐左邊的上手臂和下手臂

glPushMatrix();///上

    glTranslatef(-0.5,0,0);

    glRotatef(angle,0,0,1);

    glTranslatef(-0.25,0,0);

    drawArm();

 glPopMatrix();

glPushMatrix();///下

    glTranslatef(-0.25,0.2,0);

    glRotatef(angle,0,0,1);

    glTranslatef(-0.25,0,0);

    drawArm();

 glPopMatrix();