godot-docs/classes/class_proceduralskymaterial.rst

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.. _class_ProceduralSkyMaterial:

ProceduralSkyMaterial
=====================

**Inherits:** :ref:`Material<class_Material>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

A material that defines a simple sky for a :ref:`Sky<class_Sky>` resource.

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

**ProceduralSkyMaterial** provides a way to create an effective background quickly by defining procedural parameters for the sun, the sky and the ground. The sky and ground are defined by a main color, a color at the horizon, and an easing curve to interpolate between them. Suns are described by a position in the sky, a color, and a max angle from the sun at which the easing curve ends. The max angle therefore defines the size of the sun in the sky.

\ **ProceduralSkyMaterial** supports up to 4 suns, using the color, and energy, direction, and angular distance of the first four :ref:`DirectionalLight3D<class_DirectionalLight3D>` nodes in the scene. This means that the suns are defined individually by the properties of their corresponding :ref:`DirectionalLight3D<class_DirectionalLight3D>`\ s and globally by :ref:`sun_angle_max<class_ProceduralSkyMaterial_property_sun_angle_max>` and :ref:`sun_curve<class_ProceduralSkyMaterial_property_sun_curve>`.

\ **ProceduralSkyMaterial** uses a lightweight shader to draw the sky and is therefore suited for real-time updates. This makes it a great option for a sky that is simple and computationally cheap, but unrealistic. If you need a more realistic procedural option, use :ref:`PhysicalSkyMaterial<class_PhysicalSkyMaterial>`.

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Properties
----------

.. table::
   :widths: auto

   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`Color<class_Color>`         | :ref:`ground_bottom_color<class_ProceduralSkyMaterial_property_ground_bottom_color>`           | ``Color(0.2, 0.169, 0.133, 1)``      |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`float<class_float>`         | :ref:`ground_curve<class_ProceduralSkyMaterial_property_ground_curve>`                         | ``0.02``                             |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`float<class_float>`         | :ref:`ground_energy_multiplier<class_ProceduralSkyMaterial_property_ground_energy_multiplier>` | ``1.0``                              |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`Color<class_Color>`         | :ref:`ground_horizon_color<class_ProceduralSkyMaterial_property_ground_horizon_color>`         | ``Color(0.6463, 0.6558, 0.6708, 1)`` |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`Texture2D<class_Texture2D>` | :ref:`sky_cover<class_ProceduralSkyMaterial_property_sky_cover>`                               |                                      |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`Color<class_Color>`         | :ref:`sky_cover_modulate<class_ProceduralSkyMaterial_property_sky_cover_modulate>`             | ``Color(1, 1, 1, 1)``                |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`float<class_float>`         | :ref:`sky_curve<class_ProceduralSkyMaterial_property_sky_curve>`                               | ``0.15``                             |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`float<class_float>`         | :ref:`sky_energy_multiplier<class_ProceduralSkyMaterial_property_sky_energy_multiplier>`       | ``1.0``                              |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`Color<class_Color>`         | :ref:`sky_horizon_color<class_ProceduralSkyMaterial_property_sky_horizon_color>`               | ``Color(0.6463, 0.6558, 0.6708, 1)`` |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`Color<class_Color>`         | :ref:`sky_top_color<class_ProceduralSkyMaterial_property_sky_top_color>`                       | ``Color(0.385, 0.454, 0.55, 1)``     |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`float<class_float>`         | :ref:`sun_angle_max<class_ProceduralSkyMaterial_property_sun_angle_max>`                       | ``30.0``                             |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`float<class_float>`         | :ref:`sun_curve<class_ProceduralSkyMaterial_property_sun_curve>`                               | ``0.15``                             |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+
   | :ref:`bool<class_bool>`           | :ref:`use_debanding<class_ProceduralSkyMaterial_property_use_debanding>`                       | ``true``                             |
   +-----------------------------------+------------------------------------------------------------------------------------------------+--------------------------------------+

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

.. _class_ProceduralSkyMaterial_property_ground_bottom_color:

.. rst-class:: classref-property

:ref:`Color<class_Color>` **ground_bottom_color** = ``Color(0.2, 0.169, 0.133, 1)``

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

- void **set_ground_bottom_color** **(** :ref:`Color<class_Color>` value **)**
- :ref:`Color<class_Color>` **get_ground_bottom_color** **(** **)**

Color of the ground at the bottom. Blends with :ref:`ground_horizon_color<class_ProceduralSkyMaterial_property_ground_horizon_color>`.

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.. _class_ProceduralSkyMaterial_property_ground_curve:

.. rst-class:: classref-property

:ref:`float<class_float>` **ground_curve** = ``0.02``

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

- void **set_ground_curve** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_ground_curve** **(** **)**

How quickly the :ref:`ground_horizon_color<class_ProceduralSkyMaterial_property_ground_horizon_color>` fades into the :ref:`ground_bottom_color<class_ProceduralSkyMaterial_property_ground_bottom_color>`.

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.. _class_ProceduralSkyMaterial_property_ground_energy_multiplier:

.. rst-class:: classref-property

:ref:`float<class_float>` **ground_energy_multiplier** = ``1.0``

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

- void **set_ground_energy_multiplier** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_ground_energy_multiplier** **(** **)**

Multiplier for ground color. A higher value will make the ground brighter.

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

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.. _class_ProceduralSkyMaterial_property_ground_horizon_color:

.. rst-class:: classref-property

:ref:`Color<class_Color>` **ground_horizon_color** = ``Color(0.6463, 0.6558, 0.6708, 1)``

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

- void **set_ground_horizon_color** **(** :ref:`Color<class_Color>` value **)**
- :ref:`Color<class_Color>` **get_ground_horizon_color** **(** **)**

Color of the ground at the horizon. Blends with :ref:`ground_bottom_color<class_ProceduralSkyMaterial_property_ground_bottom_color>`.

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

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.. _class_ProceduralSkyMaterial_property_sky_cover:

.. rst-class:: classref-property

:ref:`Texture2D<class_Texture2D>` **sky_cover**

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

- void **set_sky_cover** **(** :ref:`Texture2D<class_Texture2D>` value **)**
- :ref:`Texture2D<class_Texture2D>` **get_sky_cover** **(** **)**

The sky cover texture to use. This texture must use an equirectangular projection (similar to :ref:`PanoramaSkyMaterial<class_PanoramaSkyMaterial>`). The texture's colors will be *added* to the existing sky color, and will be multiplied by :ref:`sky_energy_multiplier<class_ProceduralSkyMaterial_property_sky_energy_multiplier>` and :ref:`sky_cover_modulate<class_ProceduralSkyMaterial_property_sky_cover_modulate>`. This is mainly suited to displaying stars at night, but it can also be used to display clouds at day or night (with a non-physically-accurate look).

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

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.. _class_ProceduralSkyMaterial_property_sky_cover_modulate:

.. rst-class:: classref-property

:ref:`Color<class_Color>` **sky_cover_modulate** = ``Color(1, 1, 1, 1)``

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

- void **set_sky_cover_modulate** **(** :ref:`Color<class_Color>` value **)**
- :ref:`Color<class_Color>` **get_sky_cover_modulate** **(** **)**

The tint to apply to the :ref:`sky_cover<class_ProceduralSkyMaterial_property_sky_cover>` texture. This can be used to change the sky cover's colors or opacity independently of the sky energy, which is useful for day/night or weather transitions. Only effective if a texture is defined in :ref:`sky_cover<class_ProceduralSkyMaterial_property_sky_cover>`.

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

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.. _class_ProceduralSkyMaterial_property_sky_curve:

.. rst-class:: classref-property

:ref:`float<class_float>` **sky_curve** = ``0.15``

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

- void **set_sky_curve** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_sky_curve** **(** **)**

How quickly the :ref:`sky_horizon_color<class_ProceduralSkyMaterial_property_sky_horizon_color>` fades into the :ref:`sky_top_color<class_ProceduralSkyMaterial_property_sky_top_color>`.

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

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.. _class_ProceduralSkyMaterial_property_sky_energy_multiplier:

.. rst-class:: classref-property

:ref:`float<class_float>` **sky_energy_multiplier** = ``1.0``

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

- void **set_sky_energy_multiplier** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_sky_energy_multiplier** **(** **)**

Multiplier for sky color. A higher value will make the sky brighter.

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

----

.. _class_ProceduralSkyMaterial_property_sky_horizon_color:

.. rst-class:: classref-property

:ref:`Color<class_Color>` **sky_horizon_color** = ``Color(0.6463, 0.6558, 0.6708, 1)``

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

- void **set_sky_horizon_color** **(** :ref:`Color<class_Color>` value **)**
- :ref:`Color<class_Color>` **get_sky_horizon_color** **(** **)**

Color of the sky at the horizon. Blends with :ref:`sky_top_color<class_ProceduralSkyMaterial_property_sky_top_color>`.

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

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.. _class_ProceduralSkyMaterial_property_sky_top_color:

.. rst-class:: classref-property

:ref:`Color<class_Color>` **sky_top_color** = ``Color(0.385, 0.454, 0.55, 1)``

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

- void **set_sky_top_color** **(** :ref:`Color<class_Color>` value **)**
- :ref:`Color<class_Color>` **get_sky_top_color** **(** **)**

Color of the sky at the top. Blends with :ref:`sky_horizon_color<class_ProceduralSkyMaterial_property_sky_horizon_color>`.

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

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.. _class_ProceduralSkyMaterial_property_sun_angle_max:

.. rst-class:: classref-property

:ref:`float<class_float>` **sun_angle_max** = ``30.0``

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

- void **set_sun_angle_max** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_sun_angle_max** **(** **)**

Distance from center of sun where it fades out completely.

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

----

.. _class_ProceduralSkyMaterial_property_sun_curve:

.. rst-class:: classref-property

:ref:`float<class_float>` **sun_curve** = ``0.15``

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

- void **set_sun_curve** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_sun_curve** **(** **)**

How quickly the sun fades away between the edge of the sun disk and :ref:`sun_angle_max<class_ProceduralSkyMaterial_property_sun_angle_max>`.

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

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.. _class_ProceduralSkyMaterial_property_use_debanding:

.. rst-class:: classref-property

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

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

- void **set_use_debanding** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **get_use_debanding** **(** **)**

If ``true``, enables debanding. Debanding adds a small amount of noise which helps reduce banding that appears from the smooth changes in color in the sky.

.. |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.)`