背景顏色、旋轉運鏡改變遠近

改變背景顏色

旋轉運鏡時遠近的變化

特別注意要一樣

#include <GL/glut.h>

#include <math.h>

#include <stdlib.h>

float angleX =0,angle2=0,angle3=0,angle4=0,angle5=0,angle6=0,angle7=0,angle8=0;

float eyex=0.2,eyey=0.2,eyez=0.4,objx=0,objy=0,objz=0,upx=0,upy=1,upz=0;

float thesize=1;

void timerRotateShow(int t);

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

{

 if(key=='4') angleX+=5;

 if(key=='6') angleX-=5;

 if(key=='9') angle2+=5;

 if(key=='3') angle2-=5;

 if(key=='7') angle3+=5;

 if(key=='1') angle3-=5;

 if(key=='i') angle4+=5;

 if(key=='o') angle4-=5;

 if(key=='y') angle5+=5;

 if(key=='u') angle5-=5;

 if(key=='k') angle6+=5;

 if(key=='l') angle6-=5;

 if(key=='h') angle7+=5;

 if(key=='j') angle7-=5;

 if(key=='/') angle8+=5;

 if(key=='*') angle8-=5;

 if(key==' ') {

eyex-=0.03,eyey-=0.02;

}

else if(key=='`'){

glutTimerFunc(0,timerRotateShow,0);

}

 glutPostRedisplay();//請電腦重新畫一次畫面

}

void timerRotateShow(int t)

{

if(t%10==0)glClearColor(rand()%255/255.0,rand()%255/255.0,rand()%255/255.0,rand()%255/255.0);

glutTimerFunc(10,timerRotateShow,t+1);

eyex=cos(t/100.0*3.14);

eyey-=0.005;

eyez=sin(t/100.0*3.14);

thesize+=0.01;

glutPostRedisplay();

}

void myLight()

{

 const GLfloat light_position[] = { -2.0f, 5.0f, 5.0f, 0.0f };

 glEnable(GL_LIGHT0);

 glEnable(GL_NORMALIZE);

 glEnable(GL_COLOR_MATERIAL);

 glEnable(GL_LIGHTING);

 glLightfv(GL_LIGHT0, GL_POSITION, light_position); 

}

void display()

{

glEnable(GL_DEPTH_TEST);

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

glPushMatrix();

  gluLookAt(eyex,eyey,eyez,objx,objy,objz,upx,upy,upz);

  glScalef(thesize,thesize,thesize);

glScalef(0.8,0.8,0.8);

glRotatef(angleX, 0,1,0);

glutSolidTeapot(0.3);

 

glPushMatrix();//右肩 

glTranslatef(0.3,0,0);

glutSolidSphere(0.25,20,20);

glPushMatrix();//右手臂

glRotatef(angle2, 0,0,1);

glTranslatef(0.3,0,0);

glScalef(0.5,0.2,0.2);

glutSolidCube(1);

glPopMatrix();  

glPopMatrix();

glPushMatrix();//左肩 

glTranslatef(-0.3,0,0);

glutSolidSphere(0.25,20,20);

glPushMatrix();//左手臂

glRotatef(angle3, 0,0,1);

glTranslatef(-0.3,0,0);

glScalef(0.5,0.2,0.2);

glutSolidCube(1);

glPopMatrix();

glPopMatrix();

glPushMatrix();//左大腿 

glRotatef(angle4, 1,0,0);

glTranslatef(0.15,-0.4,0);

glScalef(0.2,0.5,0.2);

glutSolidCube(1);

glPushMatrix();//左小腿 

glTranslatef(0,-0.1,0);

glRotatef(angle6, 1,0,0);

glTranslatef(0,-0.8,0);

glScalef(0.8,0.9,0.8);

glutSolidCube(1);

glPopMatrix();

glPopMatrix();

glPushMatrix();//右大腿 

glRotatef(angle5, 1,0,0);

glTranslatef(-0.15,-0.4,0);

glScalef(0.2,0.5,0.2);

glutSolidCube(1);

glPushMatrix();//右小腿 

glTranslatef(0,-0.1,0);

glRotatef(angle7, 1,0,0);

glTranslatef(0,-0.8,0);

glScalef(0.8,0.9,0.8);

glutSolidCube(1);

glPopMatrix();

glPopMatrix();

glPushMatrix();//頭 

glRotatef(angle8, 0,1,0);

glTranslatef(0,0.5,0);

glutSolidSphere(0.3,30,30);

   glPushMatrix();

glTranslatef(0,0,-0.3);

glutSolidSphere(0.05,20,20);

glPopMatrix();

glPopMatrix();

 

glPopMatrix();

glutSwapBuffers();

}

int main()

{

 glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

 glutCreateWindow("week11");

 glutDisplayFunc(display);

 glutKeyboardFunc(keyboard);

 myLight();

  glMatrixMode(GL_PROJECTION);

glLoadIdentity();

glOrtho(-2,2,-2,2,-10,10);

glMatrixMode(GL_MODELVIEW);

 glutMainLoop();

}