電腦圖學課程week05 叡

 Week 05

去 https://jsyeh.org/3dcg10/下載

- data data.zip

- win32 windows.zi                                                                             

將data放進window中,打開transformation出現可以轉動的汽車

分別是移動,旋轉,大小

朝著中心點轉
glRotatef(0.0,0.00,1.00,1.00)
glTranslatef(0.00,0.00,0.00)

車子本體旋轉
glTranslatef(0.00,0.00,0.00)
glRotatef(0.0,0.00,1.00,1.00)

Week05-1

先開啟codeblock,開啟一個openGL的project

#include <GL/glut.h>

float angle = 0; ///宣告global全域變數angle

void display()

{

    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); ///清背景

    glColor3f(0,1,0); ///綠色的

    glPushMatrix(); 

        glTranslatef(0.8,0,0); ///最後是綠色的移動

        glRotatef(angle,0,0,1); ///改對Z軸轉

        glutSolidTeapot(0.3);

    glPopMatrix(); ///還原矩陣

    glColor3f(1,0,0);///紅色的

    glPushMatrix();

        glRotatef(angle,0,0,1);  ///改對Z軸轉

        glTranslatef(0.8,0,0);

        glutSolidTeapot(0.3);

    glPopMatrix(); ///還原矩陣

glutSwapBuffers();

angle++; ///把角度++

}

int main(int argc, char *argv[])

{

glutInit(&argc, argv);

glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);

    glutCreateWindow("week04");

glutDisplayFunc(display);

    glutIdleFunc(display); ///有空idle時，就重畫畫面

glutMainLoop();

}

開啟桌面老師的範例

製作出一個手會轉動的人偶

接著用CodeBlock畫出來

#include <GL/glut.h>

float angle =0;

void display()

{

    glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );

    glColor3f(0,1,0);

    glPushMatrix();

    glutSolidCube(0.5);

    glPushMatrix();

    glTranslatef(0.25,0.25,0); 

    glRotatef(angle,0,0,1);

    glTranslatef(0.25,0.25,0)

     ///glTranslatef(0.5,0.5,0);

    glColor3f(1,0,0);

    glutSolidCube(0.5);

    glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

    angle++;

}

int main(int argc, char* argv[] )

{

    glutInit(&argc, argv);

    glutInitDisplayMode(GLUT_RGB|GLUT_DOUBLE|GLUT_DEPTH);

    glutCreateWindow("week03");

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutMainLoop();

}