電腦圖學筆記_week03

 Transformation

1. 至https://jsyeh.org/3dcg10 下載data , win32
2. windows.zip解壓縮 >> windows / transformation.exe
3. data.zip解壓縮 >> windows / data / 模型obj
4. 把data檔案放進windows >> 執行transformation.exe

=========================================================================

茶壺

moodle下載freeglut.zip >> 解壓縮至桌面 >> freeglut資料夾 >> lib >> 將libfreeglut.a複製貼上 >> 重新命名libglut32.a (此步驟才能讓codeblocks跑) 

codeblocks 17.12 >> file >> new >> project >>選GLUT >> 存桌面 >> next >> 設定GULT目錄(如圖) >> 跑程式

將程式碼都刪掉 >> 

#include <GL/glut.h>

void display()

{

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        glColor3f(1,1,0);

        glutSolidTeapot(0.3);

        glutSwapBuffers();

}

int main(int argc,char** argv){

    glutInit( &argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("第2週的程式");

    glutDisplayFunc(display);

    glutMainLoop();

}

拿上面的程式碼改

#include <GL/glut.h>

void display()

{

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        glPushMatrix();

        glTranslatef(0.5,0.5,0);

        glColor3f(1,1,0);

        glutSolidTeapot(0.3);

        glPushMatrix();

        glutSwapBuffers();

}

int main(int argc,char** argv){

    glutInit( &argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week03 移動");

    glutDisplayFunc(display);

    glutMainLoop();

}

#include <GL/glut.h>

void myTeapot(float x,float y)

{

    glPushMatrix();

    glTranslatef(x,y,0);

    glColor3f(1,1,0);

    glutSolidTeapot(0.3);

    glPopMatrix();

}

void display()

{

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        myTeapot(0.5,0.5);

        myTeapot(0.5,-0.5);

        myTeapot(-0.5,-0.5);

        myTeapot(-0.5,0.5);

        glutSwapBuffers();

}

int main(int argc,char** argv){

    glutInit( &argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week03 移動");

    glutDisplayFunc(display);

    glutMainLoop();

}

=======================================================================

用滑鼠動茶壺

#include <GL/glut.h>

float mouseX=0,mouseY=0;

void myTeapot(float x,float y)

{

    glPushMatrix();

        glTranslatef(x,y,0);

        glColor3f(1,1,0);

        glutSolidTeapot(0.3);

    glPopMatrix();

}

void display()

{

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        myTeapot((mouseX-150)/150.0,-(mouseY-150)/150.0 );

        glutSwapBuffers();

}

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

{

    mouseX=x;

    mouseY=y;

}

int main(int argc,char** argv){

    glutInit( &argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week03 移動");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}

=======================================================================

有顯示數據的用滑鼠動茶壺

#include <GL/glut.h>

#include<stdio.h>>

float mouseX=0,mouseY=0;

void myTeapot(float x,float y)

{

    glPushMatrix();

        glTranslatef(x,y,0);

        glColor3f(1,1,0);

        glutSolidTeapot(0.1);

    glPopMatrix();

}

void display()

{

        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        myTeapot((mouseX-150)/150.0,-(mouseY-150)/150.0 );

        glutSwapBuffers();

}

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

{

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

    mouseX=x;

    mouseY=y;

}

int main(int argc,char** argv){

    glutInit( &argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week03 移動");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}