mirror of
https://github.com/godotengine/godot-docs.git
synced 2025-12-31 17:49:03 +03:00
243 lines
9.4 KiB
ReStructuredText
243 lines
9.4 KiB
ReStructuredText
:github_url: hide
|
|
|
|
.. DO NOT EDIT THIS FILE!!!
|
|
.. Generated automatically from Godot engine sources.
|
|
.. Generator: https://github.com/godotengine/godot/tree/4.3/doc/tools/make_rst.py.
|
|
.. XML source: https://github.com/godotengine/godot/tree/4.3/doc/classes/VisualShaderNodeDerivativeFunc.xml.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc:
|
|
|
|
VisualShaderNodeDerivativeFunc
|
|
==============================
|
|
|
|
**Inherits:** :ref:`VisualShaderNode<class_VisualShaderNode>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
|
|
|
|
Calculates a derivative within the visual shader graph.
|
|
|
|
.. rst-class:: classref-introduction-group
|
|
|
|
Description
|
|
-----------
|
|
|
|
This node is only available in ``Fragment`` and ``Light`` visual shaders.
|
|
|
|
.. rst-class:: classref-reftable-group
|
|
|
|
Properties
|
|
----------
|
|
|
|
.. table::
|
|
:widths: auto
|
|
|
|
+-----------------------------------------------------------------+---------------------------------------------------------------------------+-------+
|
|
| :ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` | :ref:`function<class_VisualShaderNodeDerivativeFunc_property_function>` | ``0`` |
|
|
+-----------------------------------------------------------------+---------------------------------------------------------------------------+-------+
|
|
| :ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` | :ref:`op_type<class_VisualShaderNodeDerivativeFunc_property_op_type>` | ``0`` |
|
|
+-----------------------------------------------------------------+---------------------------------------------------------------------------+-------+
|
|
| :ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` | :ref:`precision<class_VisualShaderNodeDerivativeFunc_property_precision>` | ``0`` |
|
|
+-----------------------------------------------------------------+---------------------------------------------------------------------------+-------+
|
|
|
|
.. rst-class:: classref-section-separator
|
|
|
|
----
|
|
|
|
.. rst-class:: classref-descriptions-group
|
|
|
|
Enumerations
|
|
------------
|
|
|
|
.. _enum_VisualShaderNodeDerivativeFunc_OpType:
|
|
|
|
.. rst-class:: classref-enumeration
|
|
|
|
enum **OpType**: :ref:`🔗<enum_VisualShaderNodeDerivativeFunc_OpType>`
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_OP_TYPE_SCALAR:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` **OP_TYPE_SCALAR** = ``0``
|
|
|
|
A floating-point scalar.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_OP_TYPE_VECTOR_2D:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` **OP_TYPE_VECTOR_2D** = ``1``
|
|
|
|
A 2D vector type.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_OP_TYPE_VECTOR_3D:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` **OP_TYPE_VECTOR_3D** = ``2``
|
|
|
|
A 3D vector type.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_OP_TYPE_VECTOR_4D:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` **OP_TYPE_VECTOR_4D** = ``3``
|
|
|
|
A 4D vector type.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_OP_TYPE_MAX:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` **OP_TYPE_MAX** = ``4``
|
|
|
|
Represents the size of the :ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` enum.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _enum_VisualShaderNodeDerivativeFunc_Function:
|
|
|
|
.. rst-class:: classref-enumeration
|
|
|
|
enum **Function**: :ref:`🔗<enum_VisualShaderNodeDerivativeFunc_Function>`
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_FUNC_SUM:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` **FUNC_SUM** = ``0``
|
|
|
|
Sum of absolute derivative in ``x`` and ``y``.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_FUNC_X:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` **FUNC_X** = ``1``
|
|
|
|
Derivative in ``x`` using local differencing.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_FUNC_Y:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` **FUNC_Y** = ``2``
|
|
|
|
Derivative in ``y`` using local differencing.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_FUNC_MAX:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` **FUNC_MAX** = ``3``
|
|
|
|
Represents the size of the :ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` enum.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _enum_VisualShaderNodeDerivativeFunc_Precision:
|
|
|
|
.. rst-class:: classref-enumeration
|
|
|
|
enum **Precision**: :ref:`🔗<enum_VisualShaderNodeDerivativeFunc_Precision>`
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_PRECISION_NONE:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` **PRECISION_NONE** = ``0``
|
|
|
|
No precision is specified, the GPU driver is allowed to use whatever level of precision it chooses. This is the default option and is equivalent to using ``dFdx()`` or ``dFdy()`` in text shaders.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_PRECISION_COARSE:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` **PRECISION_COARSE** = ``1``
|
|
|
|
The derivative will be calculated using the current fragment's neighbors (which may not include the current fragment). This tends to be faster than using :ref:`PRECISION_FINE<class_VisualShaderNodeDerivativeFunc_constant_PRECISION_FINE>`, but may not be suitable when more precision is needed. This is equivalent to using ``dFdxCoarse()`` or ``dFdyCoarse()`` in text shaders.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_PRECISION_FINE:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` **PRECISION_FINE** = ``2``
|
|
|
|
The derivative will be calculated using the current fragment and its immediate neighbors. This tends to be slower than using :ref:`PRECISION_COARSE<class_VisualShaderNodeDerivativeFunc_constant_PRECISION_COARSE>`, but may be necessary when more precision is needed. This is equivalent to using ``dFdxFine()`` or ``dFdyFine()`` in text shaders.
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_constant_PRECISION_MAX:
|
|
|
|
.. rst-class:: classref-enumeration-constant
|
|
|
|
:ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` **PRECISION_MAX** = ``3``
|
|
|
|
Represents the size of the :ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` enum.
|
|
|
|
.. rst-class:: classref-section-separator
|
|
|
|
----
|
|
|
|
.. rst-class:: classref-descriptions-group
|
|
|
|
Property Descriptions
|
|
---------------------
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_property_function:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` **function** = ``0`` :ref:`🔗<class_VisualShaderNodeDerivativeFunc_property_function>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_function**\ (\ value\: :ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>`\ )
|
|
- :ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` **get_function**\ (\ )
|
|
|
|
A derivative function type. See :ref:`Function<enum_VisualShaderNodeDerivativeFunc_Function>` for options.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_property_op_type:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` **op_type** = ``0`` :ref:`🔗<class_VisualShaderNodeDerivativeFunc_property_op_type>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_op_type**\ (\ value\: :ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>`\ )
|
|
- :ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` **get_op_type**\ (\ )
|
|
|
|
A type of operands and returned value. See :ref:`OpType<enum_VisualShaderNodeDerivativeFunc_OpType>` for options.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_VisualShaderNodeDerivativeFunc_property_precision:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` **precision** = ``0`` :ref:`🔗<class_VisualShaderNodeDerivativeFunc_property_precision>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_precision**\ (\ value\: :ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>`\ )
|
|
- :ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` **get_precision**\ (\ )
|
|
|
|
Sets the level of precision to use for the derivative function. See :ref:`Precision<enum_VisualShaderNodeDerivativeFunc_Precision>` for options. When using the GL Compatibility renderer, this setting has no effect.
|
|
|
|
.. |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.)`
|