본문/내용
#include
void display()
{
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_POINTS);
for(int i=-100;i<100;i++)
for(int j=-100;j<100;j++)
{
if((2020)){
glColor3d(1.0,1.0,0.0);
glVertex2i(i,j);
}
else if(j-i&& j>-100){
glColor3d(1.0,0.0,0.0);
glVertex2i(i,j);
}
else if((-40