week03

 1-1下載win32的example範例

  https://jsyeh.org/3dcg10

  windows.zip  下載\windows\Shape.exe執行

1-2 Shape.exe左邊案mouse右鍵可以切換big及color外，右邊也可以用mouse改變point

 glBegin(GL_POLYGON) 開始畫
 glVertex3f(x,y,z) 頂點 Vertex
 glColor3f(r,g,b)色彩 Color
 glEnd() 

1-3

File-New-Project選glut檔名為week03_color專案存在桌面

刪除所有程式碼更改為

#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("week03的視窗");

    glutDisplayFunc(display);

    glutMainLoop();

    return 0;

}

1-4 

建立File-New-Project選glut專案檔名為week03_color_triangle存在桌面

更改程式碼 

glColor3f(1.0f, 0.0f, 0.0f);   glVertex2f(0.0f,   1.0f);

    glColor3f(0.0f, 1.0f, 0.0f);   glVertex2f(0.87f,  -0.5f);

    glColor3f(0.0f, 0.0f, 1.0f);   glVertex2f(-0.87f, -0.5f);