How Anti-Aliasing Quality (FIntDebugForceMSAASamples) works in ClientAppSettings.json
Locks Multisample Anti-Aliasing sample count to eliminate jagged brick edges or disable MSAA for maximum competitive frame rates.
When you adjust **Engine Settings → Anti-aliasing quality (MSAA)** inside Bloxstrap, the bootstrapper writes `FIntDebugForceMSAASamples` into `ClientSettings\ClientAppSettings.json` before `RobloxPlayerBeta.exe` initializes its renderer.
Recommended values and stability tips
- **Accepted values:** `Automatic, 1x (Off), 2x, 4x`. Stick to the built-in GUI preset under Engine Settings unless you are testing a specific JSON override.
- **Resetting:** If a custom value causes visual artifacts or a startup crash, use Reset FastFlags to default.
- **Installer:** Download the latest Windows build of Bloxstrap from /download.
Frequently asked questions
What FastFlag does "Anti-Aliasing Quality (FIntDebugForceMSAASamples)" control?
It manages `FIntDebugForceMSAASamples` inside `ClientAppSettings.json`, accessible directly via **Engine Settings → Anti-aliasing quality (MSAA)**.
Will this setting reset when Roblox updates?
No. Bloxstrap rewrites `ClientAppSettings.json` into the new Roblox version folder on every launch.