Hi everyone, I am developing an application showing running sonograms on an FLTK panel and I am having a hard time understanding how tho have VBlank synchro work on Windows. The same app is running without a glitch on Linux.
I have made tests on 1) an ASUS based Intel PC with NVIDIA video running Windows8 and 2) on a TabletPC with Intel video running Windows7. I am not sure the TabletPC handles VBlank, but my tests show that it behaves differently depending on whether I use, wglSwapIntervalEXT1(1) or wglSwapIntervalEXT1(0) in the OpenGL context of the panel (the ::draw() function). The NVIDIA based PC definitely supports VBlank but the display still looks choppy in full screen mode although it is not too bad otherwise. The program is usable but I would much prefer to solve this issue since most users would run the Windows version. I welcome any clue on how to setup VBlank on a FLTK app on Windows. Of course I already played with the NVIDIA setting utilities and tried all related settings there. I have checked the timings and I can check that the painting of the video buffer occurs just before the VBlank is due (if I understand correctly). The same timing approach works well on Linux. _______________________________________________ fltk-opengl mailing list fltk-opengl@easysw.com http://lists.easysw.com/mailman/listinfo/fltk-opengl
