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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/VisualShaderNodeColorFunc.xml.

.. _class_VisualShaderNodeColorFunc:

VisualShaderNodeColorFunc
=========================

**Inherits:** :ref:`VisualShaderNode<class_VisualShaderNode>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`

A :ref:`Color<class_Color>` function to be used within the visual shader graph.

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

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

Accept a :ref:`Color<class_Color>` to the input port and transform it according to :ref:`function<class_VisualShaderNodeColorFunc_property_function>`.

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

Properties
----------

.. table::
   :widths: auto

   +----------------------------------------------------------+--------------------------------------------------------------------+-------+
   | :ref:`Function<enum_VisualShaderNodeColorFunc_Function>` | :ref:`function<class_VisualShaderNodeColorFunc_property_function>` | ``0`` |
   +----------------------------------------------------------+--------------------------------------------------------------------+-------+

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

----

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

Enumerations
------------

.. _enum_VisualShaderNodeColorFunc_Function:

.. rst-class:: classref-enumeration

enum **Function**: :ref:`🔗<enum_VisualShaderNodeColorFunc_Function>`

.. _class_VisualShaderNodeColorFunc_constant_FUNC_GRAYSCALE:

.. rst-class:: classref-enumeration-constant

:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_GRAYSCALE** = ``0``

Converts the color to grayscale using the following formula:

::

    vec3 c = input;
    float max1 = max(c.r, c.g);
    float max2 = max(max1, c.b);
    float max3 = max(max1, max2);
    return vec3(max3, max3, max3);

.. _class_VisualShaderNodeColorFunc_constant_FUNC_HSV2RGB:

.. rst-class:: classref-enumeration-constant

:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_HSV2RGB** = ``1``

Converts HSV vector to RGB equivalent.

.. _class_VisualShaderNodeColorFunc_constant_FUNC_RGB2HSV:

.. rst-class:: classref-enumeration-constant

:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_RGB2HSV** = ``2``

Converts RGB vector to HSV equivalent.

.. _class_VisualShaderNodeColorFunc_constant_FUNC_SEPIA:

.. rst-class:: classref-enumeration-constant

:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_SEPIA** = ``3``

Applies sepia tone effect using the following formula:

::

    vec3 c = input;
    float r = (c.r * 0.393) + (c.g * 0.769) + (c.b * 0.189);
    float g = (c.r * 0.349) + (c.g * 0.686) + (c.b * 0.168);
    float b = (c.r * 0.272) + (c.g * 0.534) + (c.b * 0.131);
    return vec3(r, g, b);

.. _class_VisualShaderNodeColorFunc_constant_FUNC_MAX:

.. rst-class:: classref-enumeration-constant

:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_MAX** = ``4``

Represents the size of the :ref:`Function<enum_VisualShaderNodeColorFunc_Function>` enum.

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

----

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

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

.. _class_VisualShaderNodeColorFunc_property_function:

.. rst-class:: classref-property

:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **function** = ``0`` :ref:`🔗<class_VisualShaderNodeColorFunc_property_function>`

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

- |void| **set_function**\ (\ value\: :ref:`Function<enum_VisualShaderNodeColorFunc_Function>`\ )
- :ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **get_function**\ (\ )

A function to be applied to the input color. See :ref:`Function<enum_VisualShaderNodeColorFunc_Function>` for options.

.. |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.)`
.. |void| replace:: :abbr:`void (No return value.)`