Camera Momentum

The first-person camera banks, sways and dips with what you are doing instead of sitting still like a tripod.

Five effects

Strafe bank   the view rolls into sideways movement
Turn sway     lags behind a fast look, settles when you stop
Landing dip   a kick on landing, scaled by the fall
Sprint lurch  one nudge when a sprint starts
Elytra bank   rolls into a glide turn, like an aircraft

Hopping off a block does nothing and a fall from build height will not throw the camera - the dip has a floor and a ceiling. The sprint lurch fires once rather than bobbing the whole time you run.

Tuning

• A master strength plus a slider for each of the five. Zero turns one off.
• Max roll caps the total tilt so the view edges never clip.
• Reduce motion halves everything and turns off the two impulse effects, keeping the smooth ones.

It changes camera angles only - no FOV change, no projection change - so it sits happily next to Sodium, Iris, shaderpacks and other camera mods. First person only.

Where the settings are

• NeoForge 1.21.1 and Forge 1.20.1 - the Config button on the mod list.
• The newer Fabric and 26.2 builds - a page in Sodium's video settings.
• Fabric 1.20.1 - no screen; edit config/momentum.json.

Client-side and first-person only, no server install. NeoForge 1.21.1 and 26.2, Forge 1.20.1, Fabric 1.20.1 / 1.21.1 / 26.2. MIT. Free to use in modpacks.