View Full Version : round points become a square points

10-02-2002, 07:51 PM
The round points in my graphic turn to square points when I use a laptop to do my openGL. Why is this so?
Is there anyway to change it back to round points?

10-04-2002, 02:52 AM
hmmm, what graphics cards are you using? I think nvidia support round points, don't know about others.

10-04-2002, 02:19 PM
Apparently there is big a difference between various graphics chips. See prior discussion on the opengl newsgroup comp.graphics.api.opengl.

Try this example, "Multiple Viewports" at http://www.mfcogl.com/Multiple%20Viewports,%20MFC%20&%20OpenGL%20.htm

A "big" point appears in one of the viewports and it has worked on all accelerated nvidia hardware from a tnt2 to gf4 that I have tried.

10-06-2002, 04:16 PM
Thanks for your help and explaination http://www.opengl.org/discussion_boards/ubb/smile.gif

10-07-2002, 06:52 AM
If you have antialiasing disabled (or if the OpenGL implementation on your laptop doesn't support aa) points will be rendered square. Using aa yields round points.

[This message has been edited by jmg (edited 10-07-2002).]

10-07-2002, 09:01 AM
What is the value of your GL_POINT_SMOOTH_HINT?