week12👻

 轉動車子

 step01:jsyeh.org/3dcg10 下載 windows.zip data.zip
 step02:解壓縮 下載\windows\Transformation.exe

 step03:解壓縮 下載\windows\data\模型

 glTranslatef( 0.8, 0.0, 0.0);車子會向右轉

    

2.對特定軸轉動練習

https://120.125.80.50/GL/opengl_TRT_demo.html

    step01:把glRatated(angle,0,0,1);移到glPushMatrix();上面 按空白鍵旋轉

    step02:myDrawObject(0);移到glTranslatef(0,0,0)，

                使用glTranslatef(0,0,0);移動位置

---------------------------------------------------------------------------------------------------------------------------------

 #include <GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glRotatef(angle,0,0,1);///旋轉

    glTranslatef(0.4,-0.07,0);///旋轉

    glutSolidTeapot(0.3);///往右下移動(手把移動中心)

    glPopMatrix();

    glutSwapBuffers();

    angle+=0.1;

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("Week12_TRT");

    glutIdleFunc(display);

    glutDisplayFunc(display);

    glutMainLoop();

}

---------------------------------------------------------------------------------------------------------------------------------

#include <GL/glut.h>

float angle=0;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,1);///白色

    glutSolidTeapot(0.3);///大茶壺

    glPushMatrix();

      glTranslatef(0.3,0,0);///把下面的東西掛在某處

      glRotatef(angle,0,0,1);///旋轉

      glTranslatef(0.2,0,0);

      glColor3f(1,0,0);///紅色

      glutSolidTeapot(0.2);///茶壺

    glPushMatrix();

      glTranslatef(0.2,0,0);///把下面的東西掛在某處

      glRotatef(angle,0,0,1);///旋轉

      glTranslatef(0.2,0,0);

      glColor3f(1,0,0);///紅色

      glutSolidTeapot(0.2);///茶壺

    glPopMatrix();

     glPopMatrix();

    glutSwapBuffers();

    angle+=0.03;

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("Week12_TRT_TRT");

    glutIdleFunc(display);

    glutDisplayFunc(display);

    glutMainLoop();

}