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179 lines
6.0 KiB
ReStructuredText
179 lines
6.0 KiB
ReStructuredText
:github_url: hide
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.. DO NOT EDIT THIS FILE!!!
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.. Generated automatically from Godot engine sources.
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.. Generator: https://github.com/godotengine/godot/tree/master/doc/tools/make_rst.py.
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.. XML source: https://github.com/godotengine/godot/tree/master/doc/classes/VisualShaderNodeColorFunc.xml.
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.. _class_VisualShaderNodeColorFunc:
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VisualShaderNodeColorFunc
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=========================
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**Inherits:** :ref:`VisualShaderNode<class_VisualShaderNode>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
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A :ref:`Color<class_Color>` function to be used within the visual shader graph.
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.. rst-class:: classref-introduction-group
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Description
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-----------
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Accept a :ref:`Color<class_Color>` to the input port and transform it according to :ref:`function<class_VisualShaderNodeColorFunc_property_function>`.
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.. rst-class:: classref-reftable-group
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Properties
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----------
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.. table::
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:widths: auto
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+----------------------------------------------------------+--------------------------------------------------------------------+-------+
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| :ref:`Function<enum_VisualShaderNodeColorFunc_Function>` | :ref:`function<class_VisualShaderNodeColorFunc_property_function>` | ``0`` |
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+----------------------------------------------------------+--------------------------------------------------------------------+-------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Enumerations
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------------
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.. _enum_VisualShaderNodeColorFunc_Function:
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.. rst-class:: classref-enumeration
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enum **Function**: :ref:`🔗<enum_VisualShaderNodeColorFunc_Function>`
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.. _class_VisualShaderNodeColorFunc_constant_FUNC_GRAYSCALE:
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.. rst-class:: classref-enumeration-constant
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:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_GRAYSCALE** = ``0``
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Converts the color to grayscale using the following formula:
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::
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vec3 c = input;
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float max1 = max(c.r, c.g);
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float max2 = max(max1, c.b);
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float max3 = max(max1, max2);
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return vec3(max3, max3, max3);
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.. _class_VisualShaderNodeColorFunc_constant_FUNC_HSV2RGB:
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.. rst-class:: classref-enumeration-constant
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:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_HSV2RGB** = ``1``
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Converts HSV vector to RGB equivalent.
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.. _class_VisualShaderNodeColorFunc_constant_FUNC_RGB2HSV:
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.. rst-class:: classref-enumeration-constant
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:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_RGB2HSV** = ``2``
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Converts RGB vector to HSV equivalent.
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.. _class_VisualShaderNodeColorFunc_constant_FUNC_SEPIA:
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.. rst-class:: classref-enumeration-constant
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:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_SEPIA** = ``3``
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Applies sepia tone effect using the following formula:
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::
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vec3 c = input;
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float r = (c.r * 0.393) + (c.g * 0.769) + (c.b * 0.189);
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float g = (c.r * 0.349) + (c.g * 0.686) + (c.b * 0.168);
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float b = (c.r * 0.272) + (c.g * 0.534) + (c.b * 0.131);
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return vec3(r, g, b);
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.. _class_VisualShaderNodeColorFunc_constant_FUNC_LINEAR_TO_SRGB:
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.. rst-class:: classref-enumeration-constant
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:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_LINEAR_TO_SRGB** = ``4``
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Converts color from linear color space to sRGB color space using the following formula:
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::
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vec3 c = clamp(c, vec3(0.0), vec3(1.0));
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const vec3 a = vec3(0.055f);
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return mix((vec3(1.0f) + a) * pow(c.rgb, vec3(1.0f / 2.4f)) - a, 12.92f * c.rgb, lessThan(c.rgb, vec3(0.0031308f)));
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The Compatibility renderer uses a simpler formula:
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::
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vec3 c = input;
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return max(vec3(1.055) * pow(c, vec3(0.416666667)) - vec3(0.055), vec3(0.0));
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.. _class_VisualShaderNodeColorFunc_constant_FUNC_SRGB_TO_LINEAR:
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.. rst-class:: classref-enumeration-constant
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:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_SRGB_TO_LINEAR** = ``5``
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Converts color from sRGB color space to linear color space using the following formula:
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::
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vec3 c = input;
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return mix(pow((c.rgb + vec3(0.055)) * (1.0 / (1.0 + 0.055)), vec3(2.4)), c.rgb * (1.0 / 12.92), lessThan(c.rgb, vec3(0.04045)));
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The Compatibility renderer uses a simpler formula:
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::
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vec3 c = input;
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return c * (c * (c * 0.305306011 + 0.682171111) + 0.012522878);
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.. _class_VisualShaderNodeColorFunc_constant_FUNC_MAX:
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.. rst-class:: classref-enumeration-constant
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:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **FUNC_MAX** = ``6``
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Represents the size of the :ref:`Function<enum_VisualShaderNodeColorFunc_Function>` enum.
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Property Descriptions
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---------------------
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.. _class_VisualShaderNodeColorFunc_property_function:
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.. rst-class:: classref-property
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:ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **function** = ``0`` :ref:`🔗<class_VisualShaderNodeColorFunc_property_function>`
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.. rst-class:: classref-property-setget
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- |void| **set_function**\ (\ value\: :ref:`Function<enum_VisualShaderNodeColorFunc_Function>`\ )
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- :ref:`Function<enum_VisualShaderNodeColorFunc_Function>` **get_function**\ (\ )
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A function to be applied to the input color.
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.. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)`
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.. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)`
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.. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)`
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.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`
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.. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)`
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.. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)`
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.. |void| replace:: :abbr:`void (No return value.)`
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