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Requirements

• Windows x64, an ordinary compatible webcam, and a clearly visible face.
• A supported local game-output path and permission to configure the selected game.
• Time for calibration and per-game response tuning.

First calibration

Place the webcam near the display, avoid strong backlight, keep your face in view, and use a comfortable neutral pose. Follow every calibration target without stretching to the edge of your range.

Output setup boundaries

FreeTrack direct uses shared memory and temporarily manages the current user’s NPClient Location value. opentrack UDP defaults to 127.0.0.1; a configured non-loopback host receives mapped pose/output data.

Game compatibility varies. Recenter after changing seat, camera, display, or posture.

Common alpha limits

• Lighting changes and face occlusion can reduce tracking quality.
• Camera placement and calibration quality affect the usable response.
• Hardware timing and per-game protocol behavior can differ.

Share diagnostics carefully

Session JSONL logs may contain raw facial landmarks, pose, timing, paths, and technical errors. Screenshots can reveal faces, usernames, rooms, applications, or game-account data. Review and redact before sharing.