--- name: FileMesh last_updated: 2026-06-10T23:09:11Z inherits: - DataModelMesh - Instance - Object type: class memory_category: BaseParts summary: "The FileMesh object applies a mesh to a BasePart when parented to it. Its properties are inherited by the SpecialMesh object." --- # Class: FileMesh > The FileMesh object applies a mesh to a [BasePart](/docs/reference/engine/classes/BasePart.md) when parented to it. > Its properties are inherited by the [SpecialMesh](/docs/reference/engine/classes/SpecialMesh.md) object. ## Description The FileMesh object applies a textured mesh to a [BasePart](/docs/reference/engine/classes/BasePart.md) when parented to it. Its properties are inherited by the [SpecialMesh](/docs/reference/engine/classes/SpecialMesh.md) object. ## What is a FileMesh? FileMeshes allow user uploaded meshes to be applied to a [BasePart](/docs/reference/engine/classes/BasePart.md). The mesh that is applied is dependent on the [FileMesh.MeshId](/docs/reference/engine/classes/FileMesh.md) property. A texture can also be applied to this mesh using [FileMesh.TextureId](/docs/reference/engine/classes/FileMesh.md). Although it is not an abstract class, and can be used by developers, all [FileMesh](/docs/reference/engine/classes/FileMesh.md) properties are inherited by the [SpecialMesh](/docs/reference/engine/classes/SpecialMesh.md) object. A [SpecialMesh](/docs/reference/engine/classes/SpecialMesh.md) behaves identically to the FileMesh object when its [SpecialMesh.MeshType](/docs/reference/engine/classes/SpecialMesh.md) is set to 'FileMesh'. Although both objects are functional, the [SpecialMesh](/docs/reference/engine/classes/SpecialMesh.md) object is the official supported class. For more information on using meshes, please see the [SpecialMesh](/docs/reference/engine/classes/SpecialMesh.md) page. ## Code Samples **FileMesh Offset and Scale** In this code sample a `BasePart` is instanced with a `FileMesh`. The [DataModelMesh.Scale](/docs/reference/engine/classes/DataModelMesh.md) and [DataModelMesh.Offset](/docs/reference/engine/classes/DataModelMesh.md) properties of the `FileMesh` are then animated using `TweenService`. ```lua local TweenService = game:GetService("TweenService") local part = Instance.new("Part") part.Size = Vector3.new(4, 8, 4) part.Position = Vector3.new(0, 4, 0) part.Anchored = true part.CanCollide = false local mesh = Instance.new("FileMesh") -- advised to use SpecialMesh instead mesh.MeshId = "rbxassetid://1086413449" mesh.TextureId = "rbxassetid://1461576423" mesh.Offset = Vector3.new(0, 0, 0) mesh.Scale = Vector3.new(4, 4, 4) mesh.Parent = part local box = Instance.new("SelectionBox") box.Adornee = part box.Parent = part part.Parent = workspace local tween = TweenService:Create( mesh, TweenInfo.new(1, Enum.EasingStyle.Linear, Enum.EasingDirection.Out, -1, true, 0), { Scale = Vector3.new(1, 1, 1), Offset = Vector3.new(0, 3, 0) } ) tween:Play() ``` ## Properties ### Property: FileMesh.MeshId ```json { "type": "ContentId", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Data", "capabilities": [ "Basic" ] } ``` The MeshId is the content ID of the mesh that is to be displayed. The content ID for a mesh is generated when a developer uploads a mesh to Roblox. **Mesh VertexColor** In this code sample a `BasePart` is instanced with a `SpecialMesh`. The [DataModelMesh.VertexColor](/docs/reference/engine/classes/DataModelMesh.md) property of the `SpecialMesh` is then animated using `TweenService`. ```lua local TweenService = game:GetService("TweenService") -- instance a part and a mesh local part = Instance.new("Part") part.Size = Vector3.new(4, 8, 4) part.Position = Vector3.new(0, 4, 0) part.Anchored = true part.CanCollide = false local mesh = Instance.new("SpecialMesh") mesh.MeshType = Enum.MeshType.FileMesh mesh.MeshId = "rbxassetid://1086413449" mesh.TextureId = "rbxassetid://1461576423" mesh.Offset = Vector3.new(0, 0, 0) mesh.Scale = Vector3.new(4, 4, 4) mesh.VertexColor = Vector3.new(1, 1, 1) mesh.Parent = part -- parent part to workspace part.Parent = workspace -- create tweens local tweenInfo = TweenInfo.new(1, Enum.EasingStyle.Linear, Enum.EasingDirection.Out) local blackTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(0, 0, 0) }) local redTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(1, 0, 0) }) local greenTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(0, 1, 0) }) local blueTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(0, 0, 1) }) local resetTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(1, 1, 1) }) -- animate while true do blackTween:Play() blackTween.Completed:Wait() redTween:Play() redTween.Completed:Wait() greenTween:Play() greenTween.Completed:Wait() blueTween:Play() blueTween.Completed:Wait() resetTween:Play() resetTween.Completed:Wait() task.wait() end ``` ### Property: FileMesh.TextureId ```json { "type": "ContentId", "access": "ReadWrite", "security": { "read": "None", "write": "None" }, "serialization": { "can_load": true, "can_save": true }, "thread_safety": "ReadSafe", "category": "Data", "capabilities": [ "Basic" ] } ``` The TextureId is the content ID of the image that is to be applied to used for the meshes texture. When the TextureId property is set to an empty string, no texture will be applied to the mesh. #### How can I change the texture of a mesh? Using the TextureId property, the texture of a mesh can be changed without having to reupload the mesh. To do this, a new image will need to be uploaded to Roblox with the desired texture. The original texture image file can be obtained by exporting the mesh using the 'Export Selection' option in Roblox Studio. The image file will be saved alongside the exported .obj file. The new texture can then be re-uploaded to Roblox as a Decal and its content ID can be applied to the mesh using the TextureId property. #### How can I make a textured mesh? A mesh can only be textured if the mesh has been UV mapped. UV mapping refers to the practice of projecting a texture map onto a mesh. This cannot be done using Roblox Studio and has to be done using an external 3D modelling application such as [Blender][1]. [1]: https://www.blender.org/ **Mesh VertexColor** In this code sample a `BasePart` is instanced with a `SpecialMesh`. The [DataModelMesh.VertexColor](/docs/reference/engine/classes/DataModelMesh.md) property of the `SpecialMesh` is then animated using `TweenService`. ```lua local TweenService = game:GetService("TweenService") -- instance a part and a mesh local part = Instance.new("Part") part.Size = Vector3.new(4, 8, 4) part.Position = Vector3.new(0, 4, 0) part.Anchored = true part.CanCollide = false local mesh = Instance.new("SpecialMesh") mesh.MeshType = Enum.MeshType.FileMesh mesh.MeshId = "rbxassetid://1086413449" mesh.TextureId = "rbxassetid://1461576423" mesh.Offset = Vector3.new(0, 0, 0) mesh.Scale = Vector3.new(4, 4, 4) mesh.VertexColor = Vector3.new(1, 1, 1) mesh.Parent = part -- parent part to workspace part.Parent = workspace -- create tweens local tweenInfo = TweenInfo.new(1, Enum.EasingStyle.Linear, Enum.EasingDirection.Out) local blackTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(0, 0, 0) }) local redTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(1, 0, 0) }) local greenTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(0, 1, 0) }) local blueTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(0, 0, 1) }) local resetTween = TweenService:Create(mesh, tweenInfo, { VertexColor = Vector3.new(1, 1, 1) }) -- animate while true do blackTween:Play() blackTween.Completed:Wait() redTween:Play() redTween.Completed:Wait() greenTween:Play() greenTween.Completed:Wait() blueTween:Play() blueTween.Completed:Wait() resetTween:Play() resetTween.Completed:Wait() task.wait() end ``` ## Inherited Members ### From [DataModelMesh](/docs/reference/engine/classes/DataModelMesh.md) - **Property `Offset`** (`Vector3`): The Offset of a mesh determines the relative position from the - **Property `Scale`** (`Vector3`): The Scale of a mesh determines the size of the mesh relative to its - **Property `VertexColor`** (`Vector3`): Changes the hue of a mesh's texture, used with FileMesh.TextureId. ### From [Instance](/docs/reference/engine/classes/Instance.md) - **Property `Archivable`** (`boolean`): Determines if an Instance and its descendants can be cloned using - **Property `archivable`** (`boolean`): *(deprecated, hidden)* - **Property `Capabilities`** (`SecurityCapabilities`): The set of capabilities allowed to be used for scripts inside this - **Property `Name`** (`string`): A non-unique identifier of the Instance. - **Property `Parent`** (`Instance`): Determines the hierarchical parent of the Instance. - **Property `PredictionMode`** (`PredictionMode`): - **Property `RobloxLocked`** (`boolean`): A deprecated property that used to protect CoreGui objects. *(hidden)* - **Property `Sandboxed`** (`boolean`): When enabled, the instance can only access abilities in its `Capabilities` - **Property `UniqueId`** (`UniqueId`): A unique identifier for the instance. - **Method `AddTag(tag: string): ()`**: Applies a tag to the instance. - **Method `children(): Instances`**: Returns an array of the object's children. *(deprecated)* - **Method `ClearAllChildren(): ()`**: This method destroys all of an instance's children. - **Method `Clone(): Instance`**: Create a copy of an instance and all its descendants, ignoring instances - **Method `clone(): Instance`**: *(deprecated)* - **Method `Destroy(): ()`**: Sets the Instance.Parent property to `nil`, locks the - **Method `destroy(): ()`**: *(deprecated)* - **Method `FindFirstAncestor(name: string): Instance?`**: Returns the first ancestor of the Instance whose - **Method `FindFirstAncestorOfClass(className: string): Instance?`**: Returns the first ancestor of the Instance whose - **Method `FindFirstAncestorWhichIsA(className: string): Instance?`**: Returns the first ancestor of the Instance for whom - **Method `FindFirstChild(name: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance found with the given name. - **Method `findFirstChild(name: string, recursive?: boolean): Instance`**: *(deprecated)* - **Method `FindFirstChildOfClass(className: string): Instance?`**: Returns the first child of the Instance whose - **Method `FindFirstChildWhichIsA(className: string, recursive?: boolean): Instance?`**: Returns the first child of the Instance for whom - **Method `FindFirstDescendant(name: string): Instance?`**: Returns the first descendant found with the given Instance.Name. - **Method `GetActor(): Actor?`**: Returns the Actor associated with the Instance, if any. - **Method `GetAttribute(attribute: string): Variant`**: Returns the value which has been assigned to the given attribute name. - **Method `GetAttributeChangedSignal(attribute: string): RBXScriptSignal`**: Returns an event that fires when the given attribute changes. - **Method `GetAttributes(): Dictionary`**: Returns a dictionary of the instance's attributes. - **Method `GetChildren(): Instances`**: Returns an array containing all of the instance's children. - **Method `getChildren(): Instances`**: *(deprecated)* - **Method `GetDebugId(scopeLength?: int): string`**: Returns a coded string of the debug ID used internally by Roblox. - **Method `GetDescendants(): Instances`**: Returns an array containing all of the descendants of the instance. - **Method `GetFullName(): string`**: Returns a string describing the instance's ancestry. - **Method `GetStyled(name: string, selector: string?): Variant`**: Returns the styled or explicitly modified value of the specified property, - **Method `GetStyledPropertyChangedSignal(property: string): RBXScriptSignal`**: - **Method `GetTags(): Array`**: Gets an array of all tags applied to the instance. - **Method `HasTag(tag: string): boolean`**: Check whether the instance has a given tag. - **Method `IsAncestorOf(descendant: Instance): boolean`**: Returns true if an Instance is an ancestor of the given - **Method `IsDescendantOf(ancestor: Instance): boolean`**: Returns `true` if an Instance is a descendant of the given - **Method `isDescendantOf(ancestor: Instance): boolean`**: *(deprecated)* - **Method `IsPropertyModified(property: string): boolean`**: Returns `true` if the value stored in the specified property is not equal - **Method `QueryDescendants(selector: string): Instances`**: - **Method `Remove(): ()`**: Sets the object's `Parent` to `nil`, and does the same for all its *(deprecated)* - **Method `remove(): ()`**: *(deprecated)* - **Method `RemoveTag(tag: string): ()`**: Removes a tag from the instance. - **Method `ResetPropertyToDefault(property: string): ()`**: Resets a property to its default value. - **Method `SetAttribute(attribute: string, value: Variant): ()`**: Sets the attribute with the given name to the given value. - **Method `WaitForChild(childName: string, timeOut: double): Instance`**: Returns the child of the Instance with the given name. If the - **Event `AncestryChanged`**: Fires when the Instance.Parent property of this object or one of - **Event `AttributeChanged`**: Fires whenever an attribute is changed on the Instance. - **Event `ChildAdded`**: Fires after an object is parented to this Instance. - **Event `childAdded`**: *(deprecated)* - **Event `ChildRemoved`**: Fires after a child is removed from this Instance. - **Event `DescendantAdded`**: Fires after a descendant is added to the Instance. - **Event `DescendantRemoving`**: Fires immediately before a descendant of the Instance is removed. - **Event `Destroying`**: Fires immediately before (or is deferred until after) the instance is - **Event `StyledPropertiesChanged`**: Fires whenever any style property is changed on the instance, including ### From [Object](/docs/reference/engine/classes/Object.md) - **Property `ClassName`** (`string`): A read-only string representing the class this Object belongs to. - **Property `className`** (`string`): *(deprecated)* - **Method `GetPropertyChangedSignal(property: string): RBXScriptSignal`**: Get an event that fires when a given property of the object changes. - **Method `IsA(className: string): boolean`**: Returns true if an object's class matches or inherits from a given class. - **Method `isA(className: string): boolean`**: *(deprecated)* - **Event `Changed`**: Fires immediately after a property of the object changes, with some