Instance Method


Returns the minimum region entirely enclosing the asset’s contents at the specified time sample.


func boundingBox(atTime time: TimeInterval) -> MDLAxisAlignedBoundingBox



A timestamp referring to timed information in the asset.

Return Value

The asset’s bounding box as of the specified time sample.


If an asset does not contain timed information, calling this method with any time sample is equivalent to reading the boundingBox property.

All assets can provide bounding box information without traversing their hierarchy of objects.

See Also

Working with Asset Content

func object(at: Int) -> MDLObject

Returns the top-level object at the specified index in the asset.

subscript(Int) -> MDLObject?

Returns the top-level object at the specified index in the asset, using subscript syntax.

var count: Int

The number of top-level objects in the asset.

func childObjects(of: AnyClass) -> [MDLObject]

Returns all objects contained in the asset of the specified class.

func add(MDLObject)

Adds the specified object to the asset’s list of top-level objects.

func remove(MDLObject)

Removes the specified object from the asset’s list of top-level objects.

var boundingBox: MDLAxisAlignedBoundingBox

The minimum region entirely enclosing the asset’s contents.

var url: URL?

The URL from which the asset was loaded, if available.

var bufferAllocator: MDLMeshBufferAllocator

An object responsible for allocating mesh vertex data loaded from the asset.

var vertexDescriptor: MDLVertexDescriptor?

The description of the vertex data format to be used for loading mesh data from the asset.

var masters: MDLObjectContainerComponent

An array of objects that can be reused in the asset's object hierarchy through instancing.

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