week03

基本架構

#include <GL/glut.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);

    glutCreateWindow("week03 Mouse");

    glutDisplayFunc(display);

    glutMainLoop();

}

    mouse印程式碼

    #include <stdio.h>
   void mouse(int button, int state,int x,int y)
  {
       if(state==GLUT_DOWN)printf("glVert2f(%f,%f);\n",(x-150)/150.0,-(y-150)/150.0);
  }
.....
.....
...
  glutMouseFunc(mouse);

MOTION

#include <GL/glut.h>

float teapotX=0,teapotY=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glTranslatef(teapotX,teapotY,0);

    glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

#include <stdio.h>

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

{

    if(state==GLUT_DOWN)printf("glVert2f(%f,%f);\n",(x-150)/150.0,-(y-150)/150.0);

}

void motion(int x,int y)

{

    teapotX=(x-150)/150.0; teapotY=-(y-150)/150.0;

    printf("%d %d\n",x,y);

    glutPostRedisplay();

}

int main(int argc,char**argv)

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);

    glutCreateWindow("week03 Mouse");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}