22 lines
1.2 KiB
Markdown
22 lines
1.2 KiB
Markdown
# Panel Raycaster
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A derived [Raycaster](Raycasters.md) to raycast against UI Toolkit panel instances at runtime.
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During the Start method of the EventSystem, a PanelRaycaster is automatically added to the scene for each
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active UI Document in the scene. To disable this behavior, call
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EventSystem.SetUITookitEventSystemOverride before the Start method
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executes.
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You can use the Sort Order of the Panel Settings asset referenced by each document to configure
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the priority of the raycast between multiple documents. You can also use the PanelRaycaster in combination
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with a [GraphicRaycaster](script-GraphicRaycaster.md). In that case, the Sort Order of documents is compared to
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the Sort Order of Canvases to determine overall priority.
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For additional information about using input and event systems with UI Toolkit,
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refer to [FAQ for event and input system](https://docs.unity3d.com/Manual/UIE-faq-event-and-input-system.html).
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## Properties
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|**Property:** |**Function:** |
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|`panel`| The panel that this component relates to. If the panel is null, this component has no effect. It will automatically be set to `null` automatically if the panel is disposed of from an external source. | |