Instance Method

componentConforming(to:)

Returns the object’s component for the specified protocol.

Declaration

func componentConforming(to protocol: Protocol) -> MDLComponent?

Parameters

protocol

The protocol for which to retrieve a component. This protocol must extend the MDLComponent protocol.

Return Value

The object’s component for the protocol, or nil if the object does not have such a component.

Discussion

Components are the basis for customizable file format and object graph support in Model I/O. By default, the MDLObject uses the MDLObjectContainerComponent and MDLTransformComponent protocols to model object hierarchies and spatial transforms: When you load an object graph from a MDLAsset instance, Model I/O creates container and transforms components to represent the object hierarchy and spatial relationships described in the asset file. However, you can also create custom components. For example, a custom component protocol could add support for an asset format that encodes gameplay-related information such as scripting triggers, or a custom class for the MDLObjectContainerComponent could implement other ways to store or traverse object hierarchies.

See Also

Customizing Objects with Components

func setComponent(MDLComponent, for: Protocol)

Associates a component with the object for the specified protocol.