some conceptual problem...

In opengl if u want to have lines of different kinds can we really draw it.Also is it possible to draw an arc or ellipse in opengl ? Are there any special functions or we break it up into lines and then draw it.

Hi !

OpenGL does not have any function to render arc or circles (you can do disk’s with GLU though, with or without holes, glu can also render bezier and spline curves that can be used to create arcs and circle’s).