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Performance Tips

UI is often a silent performance killer in Unity. HookUI does a lot of optimization for you, but you can help it.

1. Canvas Splitting​

Don't put everything under one massive Canvas.

  • Dynamic UI: (Health bars, damage numbers) -> Separate Canvas.
  • Static UI: (Backgrounds, Borders) -> Separate Canvas.
  • HookUI Flows: HookUI handles HookViews efficiently by disabling their Canvas Component when hidden. This prevents Unity from re-calculating the layout for hidden screens.

2. Graphic Raycasters​

Every GraphicRaycaster on screen has a cost every frame (or every input).

  • HookUI Automatic: HookView automatically disables the GraphicRaycaster when the view is hidden.
  • Manual: If you have complex nesting, ensure you don't have Raycasters on objects that don't need interaction (like Images acting as backgrounds).

3. ID Lookups​

HookUI uses string hashes for lookups internally in some places, but string comparisons in others.

  • Cached: The database is loaded into memory. Lookups are fast (Dictionary or Hash based).
  • Avoid: Don't call HookUIDatabase.GetItems() every frame. Cache the result in Start().