GripAndFlip

Grip & Flip

3-axis rotation for held objects in Grain Rot.

The base game only lets you rotate grabbed loot and furniture around the

vertical axis (Q/E). Grip & Flip adds full pitch and roll — tumble that

armchair, hang that painting sideways, stack crates at whatever angle you

want.

Controls (while holding an object)

| Input | Action |

|---|---|

| Hold Left Alt + move mouse | Rotate freely (horizontal = spin, vertical = tumble). Camera stays put while Alt is held. |

| Arrow keys | Hold for smooth rotation, tap for a small nudge |

| Numpad 8 / 2 / 4 / 6 | Precise 15° steps (pitch / roll) |

| Numpad 5 | Reset to vanilla upright |

| Shift + Arrow keys | Precise 15° steps — for keyboards with no numpad |

| Shift + Backspace | Reset to vanilla upright — for keyboards with no numpad |

| Q / E | Native yaw (untouched) |

Releasing or re-grabbing an object cleanly returns it to vanilla behavior.

Installation

Install Mod Manager or r2modmanPlus — the

required UE4SS setup (GrainRot UE4SS + unreal shimloader) installs

automatically as dependencies.

Multiplayer

• Friends do not need the mod to play with you — nothing in the game

files is modified, so modded and unmodded players join each other freely.

• Rotation only works when you are the HOST (or in singleplayer). The

host's machine owns held-object physics; as a joining client your rotation

would just fight the server's corrections, so the mod detects this and

disables itself with a console message. If everyone in your group wants to

grip and flip, take turns hosting.

• While you carry a tilted item, other players see it upright (the game

replicates held rotation yaw-only). The moment you drop or place it,

everyone sees the true orientation.

How it works (for the curious)

Grain Rot's grab system rewrites the held object's physics-handle target

rotation as yaw-only every frame (that's the auto-upright behavior). Grip &

Flip keeps a pitch/roll offset and re-composes it onto that target every frame

from a hook on the player's animation update — after the game's write, before

physics — so the game's own physics driver does all the actual movement.

Held-key and Alt state come from a tiny background PowerShell poller

(keypoll.ps1), because querying key state through the engine's scripting

bridge is fatally crash-prone on this UE4SS/UE 5.7 combination. The poller is

plain readable script (nothing compiled), starts with the mod, touches nothing

but a small key-state file in your temp folder, and exits with the game.

Troubleshooting

• Taps rotate but holding/Alt does nothing — the key poller didn't start.

Check the UE4SS log for a keypoll warning line.

• hook registration failed in the log at startup — harmless; the hook

registers automatically once you're in a level.

Changelog

• 17.1.1 — new icon; the tenkeyless controls added in 17.1.0 are now

listed in the controls table above.

• 17.1.0 — tenkeyless support: Shift+Arrows = 15° steps,

Shift+Backspace = reset tilt (numpad still works).

• 17.0.1 — poller path now resolves from the mod's own folder, so the

Alt/held-key features work under mod-manager (shimloader) installs.

• v17 — client-side prediction: joining clients' rotations no longer

jitter on their own screen (host still needs the mod for client rotation).

Credits

• Runs on the GrainRot UE4SS

community overlay and RE-UE4SS.