![]() NI vsync pertains to fullscreen exclusive mode apps like FSX so NI settings like half refresh don't work with P3D since P3D is a desktop window and the actual monitor vsync is fixed to the desktop setting. ![]() VSync in P3D Display Settings is not the same as vsync in NI. These Display Settings in P3D are not just for final setting up of the sim, they are also used for profiling the performance before final setting. Choose a sim graphics setup and a limit that the sim can maintain throughout the flight. Introduce the NI limiter if the setup of the sim has been determined to be unable to reach the monitor refresh. Increase the graphics settings until the sim fps cannot reach this monitor refresh frequency. Set the sim up with low graphics so it can easily outperform the monitor refresh and try setting the P3D VSync On/Off to properly determine the behaviour of P3D rendering. Start the sim and is limited to ~30, we can add some stability with VSync=On, we can also try TP=On for more consistent fps.Ī good thing to do is try out what I have showed in the comment above. Start nvidiaProfileInspector.exe and select the Prepar3D profile, set vsync back to app controlled, set fps limit to 29.5 - Apply. exe), temporarily we are going to change vertical sync to off to create a new profile for nvidiaProfileInspector.exe (basically changing anything creates the new profile), Apply, Exit. Making a profile: Right-click - NVidia Control Panel - Manage 3D Settings, Global Settings, Default, Apply - Program Settings, select Prepar3D (add and point to v4. Set VSync=On and observe the fps is now running at approximately the monitor refresh frequency say 60Hz for example. ![]() In the sim Display Settings set fps to Unlimited VSync=Off and set sliders far enough left so that we can observe (shift-Z) the sim running easily at more than the monitor refresh frequency. ![]() Use the nvidiaProfileInspector fps limiter in P3D: ![]()
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January 2023
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