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.. DO NOT EDIT THIS FILE!!!
.. Generated automatically from Godot engine sources.
.. Generator: https://github.com/godotengine/godot/tree/3.5/doc/tools/make_rst.py.
.. XML source: https://github.com/godotengine/godot/tree/3.5/doc/classes/VisualShaderNodeScalarDerivativeFunc.xml.

.. _class_VisualShaderNodeScalarDerivativeFunc:

VisualShaderNodeScalarDerivativeFunc
====================================

**Inherits:** :ref:`VisualShaderNode<class_VisualShaderNode>` **<** :ref:`Resource<class_Resource>` **<** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`

Calculates a scalar derivative within the visual shader graph.

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

This node is only available in ``Fragment`` and ``Light`` visual shaders.

Properties
----------

+---------------------------------------------------------------------+-------------------------------------------------------------------------------+-------+
| :ref:`Function<enum_VisualShaderNodeScalarDerivativeFunc_Function>` | :ref:`function<class_VisualShaderNodeScalarDerivativeFunc_property_function>` | ``0`` |
+---------------------------------------------------------------------+-------------------------------------------------------------------------------+-------+

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

.. _enum_VisualShaderNodeScalarDerivativeFunc_Function:

.. _class_VisualShaderNodeScalarDerivativeFunc_constant_FUNC_SUM:

.. _class_VisualShaderNodeScalarDerivativeFunc_constant_FUNC_X:

.. _class_VisualShaderNodeScalarDerivativeFunc_constant_FUNC_Y:

enum **Function**:

- **FUNC_SUM** = **0** --- Sum of absolute derivative in ``x`` and ``y``.

- **FUNC_X** = **1** --- Derivative in ``x`` using local differencing.

- **FUNC_Y** = **2** --- Derivative in ``y`` using local differencing.

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

.. _class_VisualShaderNodeScalarDerivativeFunc_property_function:

- :ref:`Function<enum_VisualShaderNodeScalarDerivativeFunc_Function>` **function**

+-----------+---------------------+
| *Default* | ``0``               |
+-----------+---------------------+
| *Setter*  | set_function(value) |
+-----------+---------------------+
| *Getter*  | get_function()      |
+-----------+---------------------+

The derivative type. See :ref:`Function<enum_VisualShaderNodeScalarDerivativeFunc_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.)`