godot-docs/classes/class_heightmapshape3d.rst

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.. _class_HeightMapShape3D:

HeightMapShape3D
================

**Inherits:** :ref:`Shape3D<class_Shape3D>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

A 3D height map shape used for physics collision.

.. rst-class:: classref-introduction-group

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

A 3D heightmap shape, intended for use in physics. Usually used to provide a shape for a :ref:`CollisionShape3D<class_CollisionShape3D>`. This is useful for terrain, but it is limited as overhangs (such as caves) cannot be stored. Holes in a **HeightMapShape3D** are created by assigning very low values to points in the desired area.

\ **Performance:** **HeightMapShape3D** is faster to check collisions against than :ref:`ConcavePolygonShape3D<class_ConcavePolygonShape3D>`, but it is significantly slower than primitive shapes like :ref:`BoxShape3D<class_BoxShape3D>`.

.. rst-class:: classref-reftable-group

Properties
----------

.. table::
   :widths: auto

   +-----------------------------------------------------+-------------------------------------------------------------+------------------------------------+
   | :ref:`PackedFloat32Array<class_PackedFloat32Array>` | :ref:`map_data<class_HeightMapShape3D_property_map_data>`   | ``PackedFloat32Array(0, 0, 0, 0)`` |
   +-----------------------------------------------------+-------------------------------------------------------------+------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`map_depth<class_HeightMapShape3D_property_map_depth>` | ``2``                              |
   +-----------------------------------------------------+-------------------------------------------------------------+------------------------------------+
   | :ref:`int<class_int>`                               | :ref:`map_width<class_HeightMapShape3D_property_map_width>` | ``2``                              |
   +-----------------------------------------------------+-------------------------------------------------------------+------------------------------------+

.. rst-class:: classref-reftable-group

Methods
-------

.. table::
   :widths: auto

   +---------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`float<class_float>` | :ref:`get_max_height<class_HeightMapShape3D_method_get_max_height>` **(** **)** |const| |
   +---------------------------+-----------------------------------------------------------------------------------------+
   | :ref:`float<class_float>` | :ref:`get_min_height<class_HeightMapShape3D_method_get_min_height>` **(** **)** |const| |
   +---------------------------+-----------------------------------------------------------------------------------------+

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

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

.. _class_HeightMapShape3D_property_map_data:

.. rst-class:: classref-property

:ref:`PackedFloat32Array<class_PackedFloat32Array>` **map_data** = ``PackedFloat32Array(0, 0, 0, 0)``

.. rst-class:: classref-property-setget

- void **set_map_data** **(** :ref:`PackedFloat32Array<class_PackedFloat32Array>` value **)**
- :ref:`PackedFloat32Array<class_PackedFloat32Array>` **get_map_data** **(** **)**

Height map data. The array's size must be equal to :ref:`map_width<class_HeightMapShape3D_property_map_width>` multiplied by :ref:`map_depth<class_HeightMapShape3D_property_map_depth>`.

.. rst-class:: classref-item-separator

----

.. _class_HeightMapShape3D_property_map_depth:

.. rst-class:: classref-property

:ref:`int<class_int>` **map_depth** = ``2``

.. rst-class:: classref-property-setget

- void **set_map_depth** **(** :ref:`int<class_int>` value **)**
- :ref:`int<class_int>` **get_map_depth** **(** **)**

Number of vertices in the depth of the height map. Changing this will resize the :ref:`map_data<class_HeightMapShape3D_property_map_data>`.

.. rst-class:: classref-item-separator

----

.. _class_HeightMapShape3D_property_map_width:

.. rst-class:: classref-property

:ref:`int<class_int>` **map_width** = ``2``

.. rst-class:: classref-property-setget

- void **set_map_width** **(** :ref:`int<class_int>` value **)**
- :ref:`int<class_int>` **get_map_width** **(** **)**

Number of vertices in the width of the height map. Changing this will resize the :ref:`map_data<class_HeightMapShape3D_property_map_data>`.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Method Descriptions
-------------------

.. _class_HeightMapShape3D_method_get_max_height:

.. rst-class:: classref-method

:ref:`float<class_float>` **get_max_height** **(** **)** |const|

Returns the largest height value found in :ref:`map_data<class_HeightMapShape3D_property_map_data>`. Recalculates only when :ref:`map_data<class_HeightMapShape3D_property_map_data>` changes.

.. rst-class:: classref-item-separator

----

.. _class_HeightMapShape3D_method_get_min_height:

.. rst-class:: classref-method

:ref:`float<class_float>` **get_min_height** **(** **)** |const|

Returns the smallest height value found in :ref:`map_data<class_HeightMapShape3D_property_map_data>`. Recalculates only when :ref:`map_data<class_HeightMapShape3D_property_map_data>` changes.

.. |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.)`
.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`