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Game Development

Engine, physics, rendering and build bugs in games.

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Banner: Unity Rigidbody character jitter with camera follow caused by mixing Update and FixedUpdate

Game Development Bug Report

Unity Rigidbody character jitters with camera follow: Update vs FixedUpdate

Daniel Tran · Jun 23, 2026 · 9 min read

Our player character stuttered against the background whenever the camera followed it, worst on 144 Hz monitors. Movement wrote the transform in Update, the camera read physics positions, and interpolation was off. How we measured the jitter and fixed all three.