# Extension
Base class for all extensions. Extensions are created via createExtension method from the viewer instance.
# Fields
| viewer |
|---|
# Accessors
| enabled | inject |
|---|
# Methods
| onEarlyUpdate | onLateUpdate | onRender | onResize |
|---|
# Fields
# viewer
protected viewer: IViewer
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All extensions hold a reference to the viewer implementation instance that spawned them
# Accessors
# enabled
get enabled(): boolean
set enabled(value: boolean)
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2
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All extensions should implement enabling/disabling themselves
# inject
get inject(): Array<Constructor<Extension>>
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Gets the list of extensions that need to get injected on creation time. This is how an extension declares that it needs other extensions injected. Injection is automatically done when calling createExtension
# Methods
# onEarlyUpdate
onEarlyUpdate(deltaTime?: number)
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Update function called before the viewer's update
# onLateUpdate
onLateUpdate(deltaTime?: number)
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Update function called after the viewer's update
# onRender
onRender()
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Render function called after the viewer's render
# onResize
onResize()
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Called whenever a resize happens