week04?

程式碼:

#1.

#include <GL/glut.h>
#include <stdio.h>
float s = 1;
void display()
{
    glClearColor(1,1,0.9,1);
    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
    glColor3f(0,1,0);
    glPushMatrix();
        glScalef(s,s,s);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
void motion(int x, int y)
{
    s=1+(x-150)/150.0;
    display();
}
int main(int argc, char *argv[])
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE| GLUT_DEPTH);
    glutCreateWindow("week4 mouse glScalef");
    glutDisplayFunc(display);
    glutMotionFunc(motion);
    glutMainLoop();
}
 

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#2.

#include <GL/glut.h>

#include <stdio.h>

float s = 1;

float angle = 1;

float teapotX=0.5,teapotY=0;

void display()

{

    glClearColor(1,1,0.9,1);

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(0,1,0);

    glPushMatrix();

        glTranslatef(teapotX,teapotY,0);

        glRotatef(angle++,0,0,1);

        glScalef(s,s,s);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void motion(int x, int y)

{

    s=1+(x-150)/150.0;

    display();

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE| GLUT_DEPTH);

    glutCreateWindow("week4 mouse glScalef");

    glutIdleFunc(display);

    glutDisplayFunc(display);

    glutMotionFunc(motion);

    glutMainLoop();

}

#3.

#include <GL/glut.h>

#include <stdio.h>

int N = 0;

float teapotX[1000], teapotY[1000];

void display()

{

    glClearColor(1,1,0.9,1);

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(0,1,0);

    for(int i=0;i<N;i++){

    glPushMatrix();

        glTranslatef(teapotX[i],teapotY[i],0);

        glutSolidTeapot(0.1);

    glPopMatrix();

    }

    glutSwapBuffers();

}

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

{

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

}

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

{

    teapotX[N]=(x-150)/150.0;

    teapotY[N]=-(y-150)/150.0;

    N++;

}

int main(int argc, char *argv[])

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_DOUBLE| GLUT_DEPTH);

    glutCreateWindow("week4 keyboard mouse motion");

    glutIdleFunc(display);

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMainLoop();

}