諺哥的圖學筆記week03

開啟blogger寫今天的課堂作業

1.範例 jsyeh.org/3dcg10

1.1下載 data,win32 解壓縮

windows.zip >  下載\windows\Transformation.exe

data.zip > 下載\windows\data\模型.obj

1.2 執行 Transformation.exe

(右上角)右鍵換模型

2

    glPushMatrix();///備份矩陣

        glTranslated(x,y,0);

        glColor3f(1,1,0);

        glutSolidTeapot(0.3);

    glPopMatrix();///還原矩陣

#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("第02週的程式喔!");

    glutDisplayFunc(display);

    glutMainLoop();

}

3

mouse

#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("第02週的程式喔!");

    glutDisplayFunc(display);

    glutMouseFunc(mouse);

    glutMainLoop();

}