# WorldModel

Roblox Engine API class from Roblox Studio 0.744.0.7441077 (version-7aaa6838d36c4448).

- Inherits from, nearest first: [WorldRoot](https://rapi.sleaze.dev/classes/WorldRoot.md), [Model](https://rapi.sleaze.dev/classes/Model.md), [PVInstance](https://rapi.sleaze.dev/classes/PVInstance.md), [Instance](https://rapi.sleaze.dev/classes/Instance.md), [Object](https://rapi.sleaze.dev/classes/Object.md)
- Memory category: BaseParts
- HTML page: https://rapi.sleaze.dev/classes/WorldModel/
- Roblox documentation: https://create.roblox.com/docs/reference/engine/classes/WorldModel

Extends limited physics to its children.

## Properties

### UseWorkspaceCollisionGroups

```luau
WorldModel.UseWorkspaceCollisionGroups: boolean = false
```

- Tags: Read capabilities: Basic

Determines whether this [`WorldModel`](https://rapi.sleaze.dev/classes/WorldModel.md) uses [`Workspace`](https://rapi.sleaze.dev/classes/Workspace.md) collision groups or its own independent collision groups for queries.

## Inherited members

- From [WorldRoot](https://rapi.sleaze.dev/classes/WorldRoot.md): `Wind`, `WindDirection`, `AutoSimulate`, `CollisionGroupData`, `GravityDirection`, `SimulationRate`, `PhysicsStepTime`, `ArePartsTouchingOthers`, `Blockcast`, `BulkMoveTo`, `CacheCurrentTerrain`, `ClearCachedTerrain`, `CollisionGroupsAreCollidable`, `CollisionGroupSetCollidable`, `GetAwakeContactNormals`, `GetAwakeContactParts`, `GetAwakeContactPositions`, `GetAwakeRootParts`, `GetMaxCollisionGroups`, `GetPartBoundsInBox`, `GetPartBoundsInRadius`, `GetPartsInPart`, `GetRegisteredCollisionGroups`, `IKMoveTo`, `IsCollisionGroupRegistered`, `Raycast`, `RaycastCachedTerrain`, `RegisterCollisionGroup`, `RenameCollisionGroup`, `SetInsertPoint`, `Shapecast`, `Simulate`, `Spherecast`, `StepPhysics`, `UnregisterCollisionGroup`, `FindPartOnRay`, `FindPartOnRayWithIgnoreList`, `FindPartOnRayWithWhitelist`, `FindPartsInRegion3`, `FindPartsInRegion3WithIgnoreList`, `FindPartsInRegion3WithWhiteList`, `IsRegion3Empty`, `IsRegion3EmptyWithIgnoreList`, `findPartOnRay`, `findPartsInRegion3`, `CollisionGroupCollidableChanged`
- From [Model](https://rapi.sleaze.dev/classes/Model.md): `LevelOfDetail`, `ModelStreamingMode`, `LodEntity`, `ModelMeshCFrame`, `ModelMeshData`, `ModelMeshSize`, `NeedsPivotMigration`, `SlimAnimationTarget`, `SlimHash`, `PrimaryPart`, `Scale`, `ScaleFactor`, `WorldPivot`, `WorldPivotData`, `AddPersistentPlayer`, `GetBoundingBox`, `GetExtentsSize`, `GetPersistentPlayers`, `GetScale`, `MoveTo`, `RemovePersistentPlayer`, `ScaleTo`, `TranslateBy`, `BreakJoints`, `GetModelCFrame`, `GetModelSize`, `GetPrimaryPartCFrame`, `MakeJoints`, `ResetOrientationToIdentity`, `SetIdentityOrientation`, `SetPrimaryPartCFrame`, `breakJoints`, `makeJoints`, `move`, `moveTo`
- From [PVInstance](https://rapi.sleaze.dev/classes/PVInstance.md): `Pivot Offset`, `Origin`, `GetPivot`, `PivotTo`
- From [Instance](https://rapi.sleaze.dev/classes/Instance.md): `Archivable`, `archivable`, `Attributes`, `AttributesReplicate`, `AttributesSerialize`, `HistoryId`, `Name`, `Parent`, `PredictionMode`, `PropertyStatusStudio`, `RobloxLocked`, `SerializedOverrides`, `SourceAssetId`, `Tags`, `UniqueId`, `numExpectedDirectChildren`, `DataCost`, `Capabilities`, `DefinesCapabilities`, `IsInSandbox`, `Sandboxed`, `AddTag`, `ClearAllChildren`, `Clone`, `Destroy`, `FindFirstAncestor`, `FindFirstAncestorOfClass`, `FindFirstAncestorWhichIsA`, `FindFirstChild`, `FindFirstChildOfClass`, `FindFirstChildWhichIsA`, `FindFirstDescendant`, `GetActor`, `GetAttribute`, `GetAttributeChangedSignal`, `GetAttributes`, `GetChildren`, `GetDebugId`, `GetDescendants`, `GetFullName`, `GetStyled`, `GetStyledPropertyChangedSignal`, `GetTags`, `HasTag`, `IsAncestorOf`, `IsDescendantOf`, `IsPropertyModified`, `QueryDescendants`, `RemoveTag`, `ResetPropertyToDefault`, `SetAttribute`, `WaitForChild`, `Remove`, `children`, `clone`, `destroy`, `findFirstChild`, `getChildren`, `isDescendantOf`, `remove`, `AncestryChanged`, `AttributeChanged`, `ChildAdded`, `ChildRemoved`, `DescendantAdded`, `DescendantRemoving`, `Destroying`, `StyledPropertiesChanged`, `childAdded`
- From [Object](https://rapi.sleaze.dev/classes/Object.md): `ClassName`, `className`, `GetPropertyChangedSignal`, `IsA`, `isA`, `Changed`