Projects Patreon Community Docs About

BeamNG Modding Docs

Guides

Reference

cdefDebugDraw Reference cdefGpuMesh Reference cdefImgui Reference cdefMath Reference cdefs Reference controlSystems Reference csvlib Reference delayLine Reference dequeue Reference devUtils Reference Event Reference extensions Reference filters Reference graphpath Reference guihooks Reference inputFilters Reference interpolatedMap Reference introspection Reference jbeamWriter Reference json-ast Reference json Reference jsonDebug Reference jsonPrettyEncoderCustom Reference kdtreebox2d Reference kdtreebox3d Reference kdtreepoint3d Reference lpack Reference luaBinding Reference luaCore Reference luaProfiler Reference mathlib Reference particles Reference quadtree Reference settings Reference tcpServer Reference timeEvents Reference utils Reference

UI

Resources

BeamNG Game Engine Lua Cheat Sheet GE Developer Recipes MCP Server Setup

// RLS.STUDIOS=true

Premium Mods for BeamNG.drive. Career systems, custom vehicles, and immersive gameplay experiences.

Index

Home Projects Patreon

Socials

Discord Patreon (RLS)Patreon (Vehicles)

© 2026 RLS Studios. All rights reserved.

Modding since 2024

API Referencecommon

cdefMath Reference

Module defined in `lua/common/cdefMath.lua`. Defines FFI C structs for vec3 and quat types used by the math library.

Module defined in lua/common/cdefMath.lua. Defines FFI C structs for vec3 and quat types used by the math library.

Exports

No Lua exports. Registers FFI C struct definitions when ffi is available.

FFI Types

`__luaVec3_t`

Type: FFI struct {double x, y, z}
Description: 3D vector with double precision. Used as the backing type for vec3().

`__luaQuat_t`

Type: FFI struct {double x, y, z, w}
Description: Quaternion with double precision. Used as the backing type for quat().

Internal Notes

These structs are metatyped in mathlib.lua to provide operator overloading and methods
Uses double precision (not float) for accuracy in physics calculations

cdefImgui Reference

Module defined in `lua/common/cdefImgui.lua`. Defines a single FFI C function for ImGui input text callback integration.

cdefs Reference

Module defined in `lua/common/cdefs.lua`. Aggregator module that requires all FFI C definition files.

On this page

Exports FFI Types __luaVec3_t__luaQuat_tInternal Notes