godot-docs/classes/class_noisetexture2d.rst

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.. _class_NoiseTexture2D:

NoiseTexture2D
==============

**Inherits:** :ref:`Texture2D<class_Texture2D>` **<** :ref:`Texture<class_Texture>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

A 2D texture filled with noise generated by a :ref:`Noise<class_Noise>` object.

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

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

Uses the :ref:`FastNoiseLite<class_FastNoiseLite>` library or other noise generators to fill the texture data of your desired size. **NoiseTexture2D** can also generate normal map textures.

The class uses :ref:`Thread<class_Thread>`\ s to generate the texture data internally, so :ref:`Texture2D.get_image<class_Texture2D_method_get_image>` may return ``null`` if the generation process has not completed yet. In that case, you need to wait for the texture to be generated before accessing the image and the generated byte data:

::

    var texture = NoiseTexture2D.new()
    texture.noise = FastNoiseLite.new()
    await texture.changed
    var image = texture.get_image()
    var data = image.get_data()

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

Properties
----------

.. table::
   :widths: auto

   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`         | :ref:`as_normal_map<class_NoiseTexture2D_property_as_normal_map>`               | ``false``                                                                              |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`float<class_float>`       | :ref:`bump_strength<class_NoiseTexture2D_property_bump_strength>`               | ``8.0``                                                                                |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`Gradient<class_Gradient>` | :ref:`color_ramp<class_NoiseTexture2D_property_color_ramp>`                     |                                                                                        |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`         | :ref:`generate_mipmaps<class_NoiseTexture2D_property_generate_mipmaps>`         | ``true``                                                                               |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`           | :ref:`height<class_NoiseTexture2D_property_height>`                             | ``512``                                                                                |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`         | :ref:`in_3d_space<class_NoiseTexture2D_property_in_3d_space>`                   | ``false``                                                                              |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`         | :ref:`invert<class_NoiseTexture2D_property_invert>`                             | ``false``                                                                              |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`Noise<class_Noise>`       | :ref:`noise<class_NoiseTexture2D_property_noise>`                               |                                                                                        |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`         | :ref:`normalize<class_NoiseTexture2D_property_normalize>`                       | ``true``                                                                               |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`         | resource_local_to_scene                                                         | ``false`` (overrides :ref:`Resource<class_Resource_property_resource_local_to_scene>`) |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`bool<class_bool>`         | :ref:`seamless<class_NoiseTexture2D_property_seamless>`                         | ``false``                                                                              |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`float<class_float>`       | :ref:`seamless_blend_skirt<class_NoiseTexture2D_property_seamless_blend_skirt>` | ``0.1``                                                                                |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
   | :ref:`int<class_int>`           | :ref:`width<class_NoiseTexture2D_property_width>`                               | ``512``                                                                                |
   +---------------------------------+---------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+

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

----

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

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

.. _class_NoiseTexture2D_property_as_normal_map:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **as_normal_map** = ``false``

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

- void **set_as_normal_map** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **is_normal_map** **(** **)**

If ``true``, the resulting texture contains a normal map created from the original noise interpreted as a bump map.

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

----

.. _class_NoiseTexture2D_property_bump_strength:

.. rst-class:: classref-property

:ref:`float<class_float>` **bump_strength** = ``8.0``

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

- void **set_bump_strength** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_bump_strength** **(** **)**

Strength of the bump maps used in this texture. A higher value will make the bump maps appear larger while a lower value will make them appear softer.

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----

.. _class_NoiseTexture2D_property_color_ramp:

.. rst-class:: classref-property

:ref:`Gradient<class_Gradient>` **color_ramp**

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

- void **set_color_ramp** **(** :ref:`Gradient<class_Gradient>` value **)**
- :ref:`Gradient<class_Gradient>` **get_color_ramp** **(** **)**

A :ref:`Gradient<class_Gradient>` which is used to map the luminance of each pixel to a color value.

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

----

.. _class_NoiseTexture2D_property_generate_mipmaps:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **generate_mipmaps** = ``true``

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

- void **set_generate_mipmaps** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **is_generating_mipmaps** **(** **)**

Determines whether mipmaps are generated for this texture. Enabling this results in less texture aliasing in the distance, at the cost of increasing memory usage by roughly 33% and making the noise texture generation take longer.

\ **Note:** :ref:`generate_mipmaps<class_NoiseTexture2D_property_generate_mipmaps>` requires mipmap filtering to be enabled on the material using the **NoiseTexture2D** to have an effect.

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

----

.. _class_NoiseTexture2D_property_height:

.. rst-class:: classref-property

:ref:`int<class_int>` **height** = ``512``

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

- void **set_height** **(** :ref:`int<class_int>` value **)**
- :ref:`int<class_int>` **get_height** **(** **)**

Height of the generated texture (in pixels).

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

----

.. _class_NoiseTexture2D_property_in_3d_space:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **in_3d_space** = ``false``

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

- void **set_in_3d_space** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **is_in_3d_space** **(** **)**

Determines whether the noise image is calculated in 3D space. May result in reduced contrast.

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

----

.. _class_NoiseTexture2D_property_invert:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **invert** = ``false``

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

- void **set_invert** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **get_invert** **(** **)**

If ``true``, inverts the noise texture. White becomes black, black becomes white.

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

----

.. _class_NoiseTexture2D_property_noise:

.. rst-class:: classref-property

:ref:`Noise<class_Noise>` **noise**

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

- void **set_noise** **(** :ref:`Noise<class_Noise>` value **)**
- :ref:`Noise<class_Noise>` **get_noise** **(** **)**

The instance of the :ref:`Noise<class_Noise>` object.

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

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.. _class_NoiseTexture2D_property_normalize:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **normalize** = ``true``

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

- void **set_normalize** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **is_normalized** **(** **)**

If ``true``, the noise image coming from the noise generator is normalized to the range ``0.0`` to ``1.0``.

Turning normalization off can affect the contrast and allows you to generate non repeating tileable noise textures.

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

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.. _class_NoiseTexture2D_property_seamless:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **seamless** = ``false``

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

- void **set_seamless** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **get_seamless** **(** **)**

If ``true``, a seamless texture is requested from the :ref:`Noise<class_Noise>` resource.

\ **Note:** Seamless noise textures may take longer to generate and/or can have a lower contrast compared to non-seamless noise depending on the used :ref:`Noise<class_Noise>` resource. This is because some implementations use higher dimensions for generating seamless noise.

\ **Note:** The default :ref:`FastNoiseLite<class_FastNoiseLite>` implementation uses the fallback path for seamless generation. If using a :ref:`width<class_NoiseTexture2D_property_width>` or :ref:`height<class_NoiseTexture2D_property_height>` lower than the default, you may need to increase :ref:`seamless_blend_skirt<class_NoiseTexture2D_property_seamless_blend_skirt>` to make seamless blending more effective.

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

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.. _class_NoiseTexture2D_property_seamless_blend_skirt:

.. rst-class:: classref-property

:ref:`float<class_float>` **seamless_blend_skirt** = ``0.1``

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

- void **set_seamless_blend_skirt** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_seamless_blend_skirt** **(** **)**

Used for the default/fallback implementation of the seamless texture generation. It determines the distance over which the seams are blended. High values may result in less details and contrast. See :ref:`Noise<class_Noise>` for further details.

\ **Note:** If using a :ref:`width<class_NoiseTexture2D_property_width>` or :ref:`height<class_NoiseTexture2D_property_height>` lower than the default, you may need to increase :ref:`seamless_blend_skirt<class_NoiseTexture2D_property_seamless_blend_skirt>` to make seamless blending more effective.

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

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.. _class_NoiseTexture2D_property_width:

.. rst-class:: classref-property

:ref:`int<class_int>` **width** = ``512``

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

- void **set_width** **(** :ref:`int<class_int>` value **)**
- :ref:`int<class_int>` **get_width** **(** **)**

Width of the generated texture (in pixels).

.. |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.)`