Hi, I used outline fonts to display text at various locations. for example "Text1" at location (30,30) "Text2" at location (60,60) and i am using glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); option. It took some time to clear the color buffer. So it is looking like flicker on the screen. How i can avoid it?. If i removed the GL_COLOR_BUFFER_BIT it is working fine. But when i am displaying text "text3" at location (30,30), the "text3" is superimposed on the text "text1". Thanks, Kannan

You may have to use double buffering to avoid this.