Week05 ─ 沒有最狂只有更狂，狂日記

一、先到jsyeh.org/3dcg10下載 

data.zip、windows.zip、glut32.dll，
解壓縮後把資料全部放在同一個資料夾，
並點擊transform.exe開啟檔案。



二、做出會移動的茶壺，
改寫程式碼讓茶壺移動。



程式碼如下:

#include <GL/glut.h>
float mouseX=0, mouseY=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        glTranslatef(mouseX, mouseY, 0);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
void motion(int x, int y)
{
    mouseX = (x-150)/150.0;
    mouseY = -(y-150)/150.0;
    glutPostRedisplay();
}
int main(int argc,char **argv )
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("03160153 translate rotate scale");
    glutDisplayFunc(display);
    glutMotionFunc(motion);
    glutMainLoop();
}

也可以利用程式碼改變茶壺大小、
讓茶壺旋轉。




程式碼如下:

1.大小程式碼

#include <GL/glut.h>
float mouseX=0, mouseY=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        glScalef(mouseX, mouseY, 0);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
void motion(int x, int y)
{
    mouseX = (x-150)/150.0;
    mouseY = -(y-150)/150.0;
    glutPostRedisplay();
}
int main(int argc,char **argv )
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("03160153 translate rotate scale");
    glutDisplayFunc(display);
    ///glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutMainLoop();
}

2.旋轉程式碼

#include <GL/glut.h>
float mouseX=0, mouseY=0, rotx=0;
void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glPushMatrix();
        glRotatef(rotx, 0,0,1);
        glutSolidTeapot(0.3);
    glPopMatrix();
    glutSwapBuffers();
}
void motion(int x, int y)
{
    mouseX = (x-150)/150.0;
    mouseY = -(y-150)/150.0;
    rotx = x;
    glutPostRedisplay();
}
int main(int argc,char **argv )
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
    glutCreateWindow("03160153 translate rotate scale");
    glutDisplayFunc(display);
    ///glutMouseFunc(mouse);
    glutMotionFunc(motion);
    glutMainLoop();
}