01160413 莊博鈞 Week 10

讓鍵盤可以控制teapot

讓小黑視窗能夠顯示滑鼠移動中所有的座標

#include <GL/glut.h>

#include<stdio.h>

float teapotX=0, teapotY=0;

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

{

printf("%c %d %d\n",key,x,y);

if(key=='a'||key=='A') teapotX+=0.1;

if(key=='b'||key=='B') teapotX-=0.1;

if(key=='c'||key=='C') teapotY+=0.1;

if(key=='d'||key=='D') teapotY-=0.1;

glutPostRedisplay();

}

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

{

printf("%d %d %d %d\n",button,state,x,y);

}

void motion (int x, int y)

{

printf("%d %d\n",x,y);

}

void display()

{

glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

glPushMatrix();

glTranslatef(teapotX,teapotY,0);

glutSolidTeapot(0.3);

glPopMatrix();

glutSwapBuffers();

}

int main()

{

glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

glutCreateWindow("week10");

glutDisplayFunc(display);

glutKeyboardFunc(keyboard);

glutMouseFunc(mouse);

glutMotionFunc(motion);

glutMainLoop();

}

讓滑鼠能夠拉teapot讓它轉動

#include <GL/glut.h>

#include<stdio.h>

float teapotX=0, teapotY=0;

float angleX=0,startX=0;

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

{

printf("%d %d %d %d\n",button,state,x,y);

startX=x;

}

void motion (int x, int y)

{

printf("%d %d\n",x,y);

angleX+=(x-startX);

glutPostRedisplay();

}

void display()

{

glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

glPushMatrix();

glTranslatef(teapotX,teapotY,0);

glRotatef(angleX,0,1,0);

glutSolidTeapot(0.3);

glPopMatrix();

glutSwapBuffers();

}

int main()

{

glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

glutCreateWindow("week10");

glutDisplayFunc(display);

glutMouseFunc(mouse);

glutMotionFunc(motion);

glutMainLoop();

}

這是能夠隨意旋轉的程式碼,加上打光

#include <GL/glut.h>
#include<stdio.h>

float teapotX=0, teapotY=0;
float angleX=0,startX=0;
float angleY=0,startY=0;
void mouse (int button,int state,int x,int y)
{
printf("%d %d %d %d\n",button,state,x,y);
startX=x;
startY=y;
}
void motion (int x, int y)
{
printf("%d %d\n",x,y);
angleX+=(x-startX);startX=x;
angleY+=(y-startY);startY=y;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
glTranslatef(teapotX,teapotY,0);
glRotatef(angleX,0,-1,0);
glRotatef(angleY,-1,0,0);
glutSolidTeapot(0.3);
glPopMatrix();
glutSwapBuffers();
}
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);
}

int main()
{
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week10");
glutDisplayFunc(display);
glutMouseFunc(mouse);
glutMotionFunc(motion);
myLight();
glutMainLoop();
}