SADmodelfix

A BepInEx plugin for R.E.P.O. that automatically fixes common issues in community mods — broken physics colliders, wrong spawn bounds, incorrect center of mass, and misclassified object sizes — all at runtime, without touching the original mod files.

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What it fixes

Fix	What it does
MeshCollider	Enables convex mode on non-convex MeshColliders so objects fall and rotate with the correct shape (not like invisible cubes)
RoomVolumeCheck	Recalculates the spawn AABB pivot and size so objects actually spawn in rooms instead of clipping through walls or floors
Center of Mass	Moves Rigidbody.centerOfMass to the geometric center of all colliders so objects don't spin wildly when grabbed
VolumeType	Auto-classifies Tiny / Small / Medium / Big / Wide / Tall / VeryTall based on real mesh bounds so objects end up in the correct loot pool
Hierarchy Check	Detects mesh renderers incorrectly placed on the prefab root (experimental, off by default)
PhotonView Fix	Removes non-IPunObservable components from PhotonView.ObservedComponents — stops thousands of Photon error spam lines per session (e.g. ChargingStation, Minecraft items)
Localization Fix	Suppresses ArgumentException: Empty Table Reference spam from mods that register items with an empty LocalizedString table
SillyValuables Fix	Preloader patcher that rewrites SillyValuables.dll on disk to fix MissingMethodException: void .Sound.PlayLoop(bool,single,single,single) spam — grenade/throw sounds in SillyValuables now work correctly

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Installation

Install via Thunderstore Mod Manager or Gale — no manual steps required.

Manual: drop REPOModelFixer.dll into BepInEx/plugins/REPOModelFixer/.

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Configuration

All fixes can be toggled in BepInEx/config/mrnak.REPOModelFixer.cfg:

FixMeshColliders         = true   (default: true)
FixRoomVolumeCheck       = true   (default: true)
FixCenterOfMass          = true   (default: true)
FixVolumeType            = true   (default: true)
CheckHierarchy           = true   (default: true)
FixHierarchy             = false  (default: false — experimental)
FixPhotonViewObservers   = true   (default: true)
FixEmptyLocalizationTable= true   (default: true)
VerboseLogging           = false  (default: false)
BlockList                =        (comma-separated prefab names to skip)

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Compatibility

• R.E.P.O. v0.4.4+
• BepInEx 5.4.23+
• REPOLib 4.1.0+
• Works alongside all existing mods — only patches, never replaces

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Changelog

1.2.0

• SillyValuables compatibility patcher: fixes MissingMethodException: void .Sound.PlayLoop spam, grenade/throw sounds now work

1.1.0

• PhotonView observer fix, LocalizedString error suppression, VolumeType improvements

1.0.0

• Initial release
• Convex MeshCollider fix (shape-accurate physics)
• RoomVolumeCheck bounds recalculation
• Center of mass correction
• VolumeType auto-classification
• Harmony hooks on REPOLib Valuables / Enemies / Items + fallback director patches