Linux Air Combat / Discussion / Beginner Topics: Framerate too high?Activate LAC's "Framerate Limiter"

Framerate too high?Activate LAC's "Framerate Limiter"

Forum: Beginner Topics

Creator: bbosen

Created: 2025-10-11

Updated: 2025-10-13

bbosen - 2025-10-11

Much of the mathematics behind LAC's smooth, responsive, increasingly sophisticated flight model is based on the assumpution that the "Frame Rate" will not exceed about 100 Frames Per Second for long periods of time. For most desktop LINUX machines, an ideal rate of 60 FPS is easily achieved and remains stable almost constantly. If your frame rate drops down too low for smooth flight, you can usually elevate it by dimininishing LAC's configured "VIDEO QUALITY", "VIDEO VIEW" distance, or "VIDEO RESOLUTION".

On the other hand, some desktop LINUX machines, equipped with gaming-class video display adapters, can render LAC's basic graphics at HUNDREDS of frames per second, resulting in odd flight behavior, sometimes resulting in "unflyable" situations. If this happens on your hardware, you can configure LAC to activate its "Frame Rate Limiter" as described in LAC FAQ #71. Here's the text of that "Frequently Asked Question" with its published answer:

Q71: Does LAC have a framerate limiter? My frame rate is too high on my modern, powerful PC and it may be the cause of some crazy flight behavior.

A: Yes. LAC has a provision for keeping your framerate from exceeding the 60FPS rate upon which its flight mathematics is based. Most people don't need to use it, but if you need it you can enable or disable it by editing the "NetworkMode" field of your hidden ~home/.LAC/LacConfig.txt file according to the pattern described in LAC FAQ #70. We use the "512" bit of NetworkMode to configure LAC to enable or disable the framerate limiter.

If you are intimidated by the prospect of editing the "LacConfig.txt" file, you might prefer to use our "LacMenuLauncher" utility to do so, because it includes a handy "wizard" to expose the process to a simple menu and explanatory dialog. You can learn more about our LacMenuLauncher in FAQ #67.

Last edit: bbosen 2025-11-18

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bbosen - 2025-10-11

You can always examine our online "LAC FAQ" ("Frequently Asked Questions") page here:

https://askmisterwizard.com/2019/LinuxAirCombat/LacFaq.htm

Last edit: bbosen 2025-10-11

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

bbosen - 2025-10-13

More information about LAC's Framerate Limiter can be found here:

https://askmisterwizard.com/2019/LinuxAirCombat/FrameRateLimiter.htm

If you would like to refer to this comment somewhere else in this project, copy and paste the following link:

Framerate too high?Activate LAC's "Framerate Limiter"

Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.

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Framerate too high?Activate LAC's "Framerate Limiter"

Framerate too high?Activate LAC's "Framerate Limiter"

Combat Flight Simulator for LINUX. WW2. Network and VOIP. Open-source.

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Framerate too high?Activate LAC's "Framerate Limiter"