> Thanks. I need to draw animation in real time. Real time? Maybe so, but certainly not at 1000 frames per second.
If you draw more frames than your system can display, you are simply wasting resources. If you draw more frames than a human observer can perceive, you are simply wasting resources. So... 10 frames per second might be a bit marginal for the average observer, but adequate. 20 FPS would look smooth to most observers. 1000 FPS is pointless. > But it seemed that I can use > fl_begin_offscreen(),fl_end_offscreen(),fl_copy_offscreen() > + Fl_Window to replace Fl_Double_Window. > > By the way, why will Fl_Double_Window drawing be slower than > Fl_Window drawing? Is it due to fl_*_offscreen() call? Yes, basically. SELEX Galileo Ltd Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS14 3EL A company registered in England & Wales. Company no. 02426132 ******************************************************************** This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ******************************************************************** _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk

