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.. Generated automatically by doc/tools/make_rst.py in Godot's source tree.
.. DO NOT EDIT THIS FILE, but the VisualShader.xml source instead.
.. The source is found in doc/classes or modules/<name>/doc_classes.

.. _class_VisualShader:

VisualShader
============

**Inherits:** :ref:`Shader<class_Shader>` **<** :ref:`Resource<class_Resource>` **<** :ref:`Reference<class_Reference>` **<** :ref:`Object<class_Object>`

A custom shader program with a visual editor.

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

This class allows you to define a custom shader program that can be used for various materials to render objects.

The visual shader editor creates the shader.

Properties
----------

+-------------------------------+---------------------------------------------------------------+---------------------+
| :ref:`Vector2<class_Vector2>` | :ref:`graph_offset<class_VisualShader_property_graph_offset>` | ``Vector2( 0, 0 )`` |
+-------------------------------+---------------------------------------------------------------+---------------------+

Methods
-------

+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                            | :ref:`add_node<class_VisualShader_method_add_node>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`VisualShaderNode<class_VisualShaderNode>` node, :ref:`Vector2<class_Vector2>` position, :ref:`int<class_int>` id **)**                                     |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`                         | :ref:`can_connect_nodes<class_VisualShader_method_can_connect_nodes>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)** |const|   |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Error<enum_@GlobalScope_Error>`           | :ref:`connect_nodes<class_VisualShader_method_connect_nodes>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)**                   |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                            | :ref:`connect_nodes_forced<class_VisualShader_method_connect_nodes_forced>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)**     |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                            | :ref:`disconnect_nodes<class_VisualShader_method_disconnect_nodes>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)**             |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`VisualShaderNode<class_VisualShaderNode>` | :ref:`get_node<class_VisualShader_method_get_node>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` id **)** |const|                                                                                                                           |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Array<class_Array>`                       | :ref:`get_node_connections<class_VisualShader_method_get_node_connections>` **(** :ref:`Type<enum_VisualShader_Type>` type **)** |const|                                                                                                                             |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PoolIntArray<class_PoolIntArray>`         | :ref:`get_node_list<class_VisualShader_method_get_node_list>` **(** :ref:`Type<enum_VisualShader_Type>` type **)** |const|                                                                                                                                           |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector2<class_Vector2>`                   | :ref:`get_node_position<class_VisualShader_method_get_node_position>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` id **)** |const|                                                                                                         |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>`                           | :ref:`get_valid_node_id<class_VisualShader_method_get_valid_node_id>` **(** :ref:`Type<enum_VisualShader_Type>` type **)** |const|                                                                                                                                   |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>`                         | :ref:`is_node_connection<class_VisualShader_method_is_node_connection>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)** |const| |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                            | :ref:`remove_node<class_VisualShader_method_remove_node>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` id **)**                                                                                                                             |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                            | :ref:`set_mode<class_VisualShader_method_set_mode>` **(** :ref:`Mode<enum_Shader_Mode>` mode **)**                                                                                                                                                                   |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| void                                            | :ref:`set_node_position<class_VisualShader_method_set_node_position>` **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` id, :ref:`Vector2<class_Vector2>` position **)**                                                                         |
+-------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

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

.. _enum_VisualShader_Type:

.. _class_VisualShader_constant_TYPE_VERTEX:

.. _class_VisualShader_constant_TYPE_FRAGMENT:

.. _class_VisualShader_constant_TYPE_LIGHT:

.. _class_VisualShader_constant_TYPE_MAX:

enum **Type**:

- **TYPE_VERTEX** = **0** --- A vertex shader, operating on vertices.

- **TYPE_FRAGMENT** = **1** --- A fragment shader, operating on fragments (pixels).

- **TYPE_LIGHT** = **2** --- A shader for light calculations.

- **TYPE_MAX** = **3** --- Represents the size of the :ref:`Type<enum_VisualShader_Type>` enum.

Constants
---------

.. _class_VisualShader_constant_NODE_ID_INVALID:

.. _class_VisualShader_constant_NODE_ID_OUTPUT:

- **NODE_ID_INVALID** = **-1**

- **NODE_ID_OUTPUT** = **0**

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

.. _class_VisualShader_property_graph_offset:

- :ref:`Vector2<class_Vector2>` **graph_offset**

+-----------+-------------------------+
| *Default* | ``Vector2( 0, 0 )``     |
+-----------+-------------------------+
| *Setter*  | set_graph_offset(value) |
+-----------+-------------------------+
| *Getter*  | get_graph_offset()      |
+-----------+-------------------------+

The offset vector of the whole graph.

Method Descriptions
-------------------

.. _class_VisualShader_method_add_node:

- void **add_node** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`VisualShaderNode<class_VisualShaderNode>` node, :ref:`Vector2<class_Vector2>` position, :ref:`int<class_int>` id **)**

Adds the specified node to the shader.

----

.. _class_VisualShader_method_can_connect_nodes:

- :ref:`bool<class_bool>` **can_connect_nodes** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)** |const|

Returns ``true`` if the specified nodes and ports can be connected together.

----

.. _class_VisualShader_method_connect_nodes:

- :ref:`Error<enum_@GlobalScope_Error>` **connect_nodes** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)**

Connects the specified nodes and ports.

----

.. _class_VisualShader_method_connect_nodes_forced:

- void **connect_nodes_forced** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)**

Connects the specified nodes and ports, even if they can't be connected. Such connection is invalid and will not function properly.

----

.. _class_VisualShader_method_disconnect_nodes:

- void **disconnect_nodes** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)**

Connects the specified nodes and ports.

----

.. _class_VisualShader_method_get_node:

- :ref:`VisualShaderNode<class_VisualShaderNode>` **get_node** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` id **)** |const|

Returns the shader node instance with specified ``type`` and ``id``.

----

.. _class_VisualShader_method_get_node_connections:

- :ref:`Array<class_Array>` **get_node_connections** **(** :ref:`Type<enum_VisualShader_Type>` type **)** |const|

Returns the list of connected nodes with the specified type.

----

.. _class_VisualShader_method_get_node_list:

- :ref:`PoolIntArray<class_PoolIntArray>` **get_node_list** **(** :ref:`Type<enum_VisualShader_Type>` type **)** |const|

Returns the list of all nodes in the shader with the specified type.

----

.. _class_VisualShader_method_get_node_position:

- :ref:`Vector2<class_Vector2>` **get_node_position** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` id **)** |const|

Returns the position of the specified node within the shader graph.

----

.. _class_VisualShader_method_get_valid_node_id:

- :ref:`int<class_int>` **get_valid_node_id** **(** :ref:`Type<enum_VisualShader_Type>` type **)** |const|

----

.. _class_VisualShader_method_is_node_connection:

- :ref:`bool<class_bool>` **is_node_connection** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` from_node, :ref:`int<class_int>` from_port, :ref:`int<class_int>` to_node, :ref:`int<class_int>` to_port **)** |const|

Returns ``true`` if the specified node and port connection exist.

----

.. _class_VisualShader_method_remove_node:

- void **remove_node** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` id **)**

Removes the specified node from the shader.

----

.. _class_VisualShader_method_set_mode:

- void **set_mode** **(** :ref:`Mode<enum_Shader_Mode>` mode **)**

Sets the mode of this shader.

----

.. _class_VisualShader_method_set_node_position:

- void **set_node_position** **(** :ref:`Type<enum_VisualShader_Type>` type, :ref:`int<class_int>` id, :ref:`Vector2<class_Vector2>` position **)**

Sets the position of the specified node.

.. |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.)`