ఠ_ఠ week05

 Week05    

(1)

1-1. 在 https://jsyeh.org/3dcg10，下載data , win32

1-2. 解壓縮，把data放到windows裡

1-3.開Transformation.exe

1-4.下方區域按右鍵，點S(上下兩行程式交換)

(2)

2-1. File-New-Project , 開GLUT

2-2. 設定freeglut

2-3. 程式碼全刪

2-4. 茶壺 按一個鍵可以定位

 #include <GL/glut.h>

#include <stdio.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,0);

    glutSolidTeapot(0.3);

    glutSwapBuffers();

}

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

{

    printf("你按下了 %C 在 %d %d 座標\n",key,x,y);

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("Week05 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMainLoop();

}

2-5.做成可隨著滑鼠移動(接續上面) 藍－>橘－>綠－>紫

#include <GL/glut.h>

#include <stdio.h>

float x=150,y=150,z=0,scale=1.0 ;

int oldX=0,oldY=0;

void display()

{

    glClearColor(0.5,0.5,0.5,1); ///R,G,B,A  其中A半透明功能，目前沒開

    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glTranslatef((x-150)/150.0,-(y-150)/150.0,z);

        glScalef(scale,scale,scale);

        glColor3f(1,1,0);

        glutSolidTeapot(0.3);

    glPopMatrix();

    glutSwapBuffers();

}

void keyboard (unsigned char key, int mousex ,int mousey)

{

}

void mouse(int button,int state,int mousex,int mousey)

{

        oldX=mousex; oldY=mousey;

}

void motion(int mousex,int mousey)

{

        if(mousex=oldX>0) scale*=1.01;

        if(mousex=oldX>0) scale*=0.99;

       /// x+=(mousex-oldX); y+=(mousey-oldY);

        oldX=mousex;      oldY=mousey;

        display();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("Week05 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}