39 lines
2 KiB
XML
39 lines
2 KiB
XML
<?xml version="1.0" encoding="UTF-8" ?>
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<class name="VisibleOnScreenNotifier3D" inherits="VisualInstance3D" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd">
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<brief_description>
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A box-shaped region of 3D space that detects whether it is visible on screen.
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</brief_description>
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<description>
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[VisibleOnScreenEnabler3D] represents a box-shaped region of 3D space. When any part of this region becomes visible on screen or in a [Camera3D]'s view, it will emit a [signal screen_entered] signal, and likewise it will emit a [signal screen_exited] signal when no part of it remains visible.
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If you want a node to be enabled automatically when this region is visible on screen, use [VisibleOnScreenEnabler3D].
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[b]Note:[/b] [VisibleOnScreenNotifier3D] uses an approximate heuristic that doesn't take walls and other occlusion into account, unless occlusion culling is used. It also won't function unless [member Node3D.visible] is set to [code]true[/code].
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</description>
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<tutorials>
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</tutorials>
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<methods>
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<method name="is_on_screen" qualifiers="const">
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<return type="bool" />
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<description>
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Returns [code]true[/code] if the bounding box is on the screen.
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[b]Note:[/b] It takes one frame for the [VisibleOnScreenNotifier3D]'s visibility to be assessed once added to the scene tree, so this method will always return [code]false[/code] right after it is instantiated.
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</description>
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</method>
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</methods>
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<members>
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<member name="aabb" type="AABB" setter="set_aabb" getter="get_aabb" default="AABB(-1, -1, -1, 2, 2, 2)">
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The [VisibleOnScreenNotifier3D]'s bounding box.
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</member>
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</members>
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<signals>
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<signal name="screen_entered">
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<description>
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Emitted when the [VisibleOnScreenNotifier3D] enters the screen.
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</description>
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</signal>
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<signal name="screen_exited">
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<description>
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Emitted when the [VisibleOnScreenNotifier3D] exits the screen.
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</description>
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</signal>
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</signals>
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</class>
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