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.. DO NOT EDIT THIS FILE!!!
.. Generated automatically from Godot engine sources.
.. Generator: https://github.com/godotengine/godot/tree/master/doc/tools/make_rst.py.
.. XML source: https://github.com/godotengine/godot/tree/master/doc/classes/PolygonOccluder3D.xml.

.. _class_PolygonOccluder3D:

PolygonOccluder3D
=================

**Inherits:** :ref:`Occluder3D<class_Occluder3D>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

Flat 2D polygon shape for use with occlusion culling in :ref:`OccluderInstance3D<class_OccluderInstance3D>`.

Description
-----------

``PolygonOccluder3D`` stores a polygon shape that can be used by the engine's occlusion culling system. When an :ref:`OccluderInstance3D<class_OccluderInstance3D>` with a ``PolygonOccluder3D`` is selected in the editor, an editor will appear at the top of the 3D viewport so you can add/remove points. All points must be placed on the same 2D plane, which means it is not possible to create arbitrary 3D shapes with a single ``PolygonOccluder3D``. To use arbitrary 3D shapes as occluders, use :ref:`ArrayOccluder3D<class_ArrayOccluder3D>` or :ref:`OccluderInstance3D<class_OccluderInstance3D>`'s baking feature instead.

See :ref:`OccluderInstance3D<class_OccluderInstance3D>`'s documentation for instructions on setting up occlusion culling.

Properties
----------

+-----------------------------------------------------+----------------------------------------------------------+--------------------------+
| :ref:`PackedVector2Array<class_PackedVector2Array>` | :ref:`polygon<class_PolygonOccluder3D_property_polygon>` | ``PackedVector2Array()`` |
+-----------------------------------------------------+----------------------------------------------------------+--------------------------+

Property Descriptions
---------------------

.. _class_PolygonOccluder3D_property_polygon:

- :ref:`PackedVector2Array<class_PackedVector2Array>` **polygon**

+-----------+--------------------------+
| *Default* | ``PackedVector2Array()`` |
+-----------+--------------------------+
| *Setter*  | set_polygon(value)       |
+-----------+--------------------------+
| *Getter*  | get_polygon()            |
+-----------+--------------------------+

The polygon to use for occlusion culling. The polygon can be convex or concave, but it should have as few points as possible to maximize performance.

The polygon must *not* have intersecting lines. Otherwise, triangulation will fail (with an error message printed).

.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`