:github_url: hide .. 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` **<** :ref:`Resource` **<** :ref:`RefCounted` **<** :ref:`Object` A :ref:`Color` function to be used within the visual shader graph. .. rst-class:: classref-introduction-group Description ----------- Accept a :ref:`Color` to the input port and transform it according to :ref:`function`. .. rst-class:: classref-reftable-group Properties ---------- .. table:: :widths: auto +----------------------------------------------------------+--------------------------------------------------------------------+-------+ | :ref:`Function` | :ref:`function` | ``0`` | +----------------------------------------------------------+--------------------------------------------------------------------+-------+ .. rst-class:: classref-section-separator ---- .. rst-class:: classref-descriptions-group Enumerations ------------ .. _enum_VisualShaderNodeColorFunc_Function: .. rst-class:: classref-enumeration enum **Function**: :ref:`🔗` .. _class_VisualShaderNodeColorFunc_constant_FUNC_GRAYSCALE: .. rst-class:: classref-enumeration-constant :ref:`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` **FUNC_HSV2RGB** = ``1`` Converts HSV vector to RGB equivalent. .. _class_VisualShaderNodeColorFunc_constant_FUNC_RGB2HSV: .. rst-class:: classref-enumeration-constant :ref:`Function` **FUNC_RGB2HSV** = ``2`` Converts RGB vector to HSV equivalent. .. _class_VisualShaderNodeColorFunc_constant_FUNC_SEPIA: .. rst-class:: classref-enumeration-constant :ref:`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_LINEAR_TO_SRGB: .. rst-class:: classref-enumeration-constant :ref:`Function` **FUNC_LINEAR_TO_SRGB** = ``4`` Converts color from linear color space to sRGB color space using the following formula: :: vec3 c = clamp(c, vec3(0.0), vec3(1.0)); const vec3 a = vec3(0.055f); 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))); The Compatibility renderer uses a simpler formula: :: vec3 c = input; return max(vec3(1.055) * pow(c, vec3(0.416666667)) - vec3(0.055), vec3(0.0)); .. _class_VisualShaderNodeColorFunc_constant_FUNC_SRGB_TO_LINEAR: .. rst-class:: classref-enumeration-constant :ref:`Function` **FUNC_SRGB_TO_LINEAR** = ``5`` Converts color from sRGB color space to linear color space using the following formula: :: vec3 c = input; 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))); The Compatibility renderer uses a simpler formula: :: vec3 c = input; return c * (c * (c * 0.305306011 + 0.682171111) + 0.012522878); .. _class_VisualShaderNodeColorFunc_constant_FUNC_MAX: .. rst-class:: classref-enumeration-constant :ref:`Function` **FUNC_MAX** = ``6`` Represents the size of the :ref:`Function` enum. .. rst-class:: classref-section-separator ---- .. rst-class:: classref-descriptions-group Property Descriptions --------------------- .. _class_VisualShaderNodeColorFunc_property_function: .. rst-class:: classref-property :ref:`Function` **function** = ``0`` :ref:`🔗` .. rst-class:: classref-property-setget - |void| **set_function**\ (\ value\: :ref:`Function`\ ) - :ref:`Function` **get_function**\ (\ ) A function to be applied to the input color. .. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)` .. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)` .. |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.)`