Drawing unfilled rectangle shape in c++ openGL
- by Bahaa
I want to draw unfilled rectangle shape in openGL using c++ programming language but when I used the glBegin(GL_QUADS) or glBegin(GL_POLYGON), the resulted shape is filled but I want to be unfilled. How I can draw unfilled rectangle.
void draweRect(void)
{
glClear(GL_COLOR_BUFFER_BIT);
glColor3f(0.0,0.0,1.0);
glLineWidth(30);
glBegin(GL_POLYGON);
glVertex2i(50,90);
glVertex2i(100,90);
glVertex2i(100,150);
glVertex2i(50,150);
glEnd();
glFlush();
}
