godot-docs/classes/class_canvaslayer.rst

:github_url: hide

.. DO NOT EDIT THIS FILE!!!
.. Generated automatically from Godot engine sources.
.. Generator: https://github.com/godotengine/godot/tree/3.6/doc/tools/make_rst.py.
.. XML source: https://github.com/godotengine/godot/tree/3.6/doc/classes/CanvasLayer.xml.

.. _class_CanvasLayer:

CanvasLayer
===========

**Inherits:** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`

**Inherited By:** :ref:`ParallaxBackground<class_ParallaxBackground>`

Canvas drawing layer.

.. rst-class:: classref-introduction-group

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

Canvas drawing layer. :ref:`CanvasItem<class_CanvasItem>` nodes that are direct or indirect children of a **CanvasLayer** will be drawn in that layer. The layer is a numeric index that defines the draw order. The default 2D scene renders with index 0, so a **CanvasLayer** with index -1 will be drawn below, and one with index 1 will be drawn above. This is very useful for HUDs (in layer 1+ or above), or backgrounds (in layer -1 or below).

.. rst-class:: classref-introduction-group

Tutorials
---------

- :doc:`Viewport and canvas transforms <../tutorials/2d/2d_transforms>`

- :doc:`Canvas layers <../tutorials/2d/canvas_layers>`

- `2D Dodge The Creeps Demo <https://godotengine.org/asset-library/asset/515>`__

.. rst-class:: classref-reftable-group

Properties
----------

.. table::
   :widths: auto

   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`Node<class_Node>`               | :ref:`custom_viewport<class_CanvasLayer_property_custom_viewport>`               |                                     |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`bool<class_bool>`               | :ref:`follow_viewport_enable<class_CanvasLayer_property_follow_viewport_enable>` | ``false``                           |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`float<class_float>`             | :ref:`follow_viewport_scale<class_CanvasLayer_property_follow_viewport_scale>`   | ``1.0``                             |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`int<class_int>`                 | :ref:`layer<class_CanvasLayer_property_layer>`                                   | ``1``                               |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`Vector2<class_Vector2>`         | :ref:`offset<class_CanvasLayer_property_offset>`                                 | ``Vector2( 0, 0 )``                 |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`float<class_float>`             | :ref:`rotation<class_CanvasLayer_property_rotation>`                             | ``0.0``                             |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`float<class_float>`             | :ref:`rotation_degrees<class_CanvasLayer_property_rotation_degrees>`             | ``0.0``                             |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`Vector2<class_Vector2>`         | :ref:`scale<class_CanvasLayer_property_scale>`                                   | ``Vector2( 1, 1 )``                 |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`Transform2D<class_Transform2D>` | :ref:`transform<class_CanvasLayer_property_transform>`                           | ``Transform2D( 1, 0, 0, 1, 0, 0 )`` |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+
   | :ref:`bool<class_bool>`               | :ref:`visible<class_CanvasLayer_property_visible>`                               | ``true``                            |
   +---------------------------------------+----------------------------------------------------------------------------------+-------------------------------------+

.. rst-class:: classref-reftable-group

Methods
-------

.. table::
   :widths: auto

   +---------------------------------------+----------------------------------------------------------------------------------------------+
   | :ref:`RID<class_RID>`                 | :ref:`get_canvas<class_CanvasLayer_method_get_canvas>` **(** **)** |const|                   |
   +---------------------------------------+----------------------------------------------------------------------------------------------+
   | :ref:`Transform2D<class_Transform2D>` | :ref:`get_final_transform<class_CanvasLayer_method_get_final_transform>` **(** **)** |const| |
   +---------------------------------------+----------------------------------------------------------------------------------------------+
   | void                                  | :ref:`hide<class_CanvasLayer_method_hide>` **(** **)**                                       |
   +---------------------------------------+----------------------------------------------------------------------------------------------+
   | void                                  | :ref:`show<class_CanvasLayer_method_show>` **(** **)**                                       |
   +---------------------------------------+----------------------------------------------------------------------------------------------+

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

Signals
-------

.. _class_CanvasLayer_signal_visibility_changed:

.. rst-class:: classref-signal

**visibility_changed** **(** **)**

Emitted when visibility of the layer is changed. See :ref:`visible<class_CanvasLayer_property_visible>`.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

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

.. _class_CanvasLayer_property_custom_viewport:

.. rst-class:: classref-property

:ref:`Node<class_Node>` **custom_viewport**

.. rst-class:: classref-property-setget

- void **set_custom_viewport** **(** :ref:`Node<class_Node>` value **)**
- :ref:`Node<class_Node>` **get_custom_viewport** **(** **)**

The custom :ref:`Viewport<class_Viewport>` node assigned to the **CanvasLayer**. If ``null``, uses the default viewport instead.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_follow_viewport_enable:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **follow_viewport_enable** = ``false``

.. rst-class:: classref-property-setget

- void **set_follow_viewport** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **is_following_viewport** **(** **)**

If enabled, the **CanvasLayer** will use the viewport's transform, so it will move when camera moves instead of being anchored in a fixed position on the screen.

Together with :ref:`follow_viewport_scale<class_CanvasLayer_property_follow_viewport_scale>` it can be used for a pseudo 3D effect.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_follow_viewport_scale:

.. rst-class:: classref-property

:ref:`float<class_float>` **follow_viewport_scale** = ``1.0``

.. rst-class:: classref-property-setget

- void **set_follow_viewport_scale** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_follow_viewport_scale** **(** **)**

Scales the layer when using :ref:`follow_viewport_enable<class_CanvasLayer_property_follow_viewport_enable>`. Layers moving into the foreground should have increasing scales, while layers moving into the background should have decreasing scales.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_layer:

.. rst-class:: classref-property

:ref:`int<class_int>` **layer** = ``1``

.. rst-class:: classref-property-setget

- void **set_layer** **(** :ref:`int<class_int>` value **)**
- :ref:`int<class_int>` **get_layer** **(** **)**

Layer index for draw order. Lower values are drawn behind higher values.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_offset:

.. rst-class:: classref-property

:ref:`Vector2<class_Vector2>` **offset** = ``Vector2( 0, 0 )``

.. rst-class:: classref-property-setget

- void **set_offset** **(** :ref:`Vector2<class_Vector2>` value **)**
- :ref:`Vector2<class_Vector2>` **get_offset** **(** **)**

The layer's base offset.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_rotation:

.. rst-class:: classref-property

:ref:`float<class_float>` **rotation** = ``0.0``

.. rst-class:: classref-property-setget

- void **set_rotation** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_rotation** **(** **)**

The layer's rotation in radians.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_rotation_degrees:

.. rst-class:: classref-property

:ref:`float<class_float>` **rotation_degrees** = ``0.0``

.. rst-class:: classref-property-setget

- void **set_rotation_degrees** **(** :ref:`float<class_float>` value **)**
- :ref:`float<class_float>` **get_rotation_degrees** **(** **)**

The layer's rotation in degrees.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_scale:

.. rst-class:: classref-property

:ref:`Vector2<class_Vector2>` **scale** = ``Vector2( 1, 1 )``

.. rst-class:: classref-property-setget

- void **set_scale** **(** :ref:`Vector2<class_Vector2>` value **)**
- :ref:`Vector2<class_Vector2>` **get_scale** **(** **)**

The layer's scale.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_transform:

.. rst-class:: classref-property

:ref:`Transform2D<class_Transform2D>` **transform** = ``Transform2D( 1, 0, 0, 1, 0, 0 )``

.. rst-class:: classref-property-setget

- void **set_transform** **(** :ref:`Transform2D<class_Transform2D>` value **)**
- :ref:`Transform2D<class_Transform2D>` **get_transform** **(** **)**

The layer's transform.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_property_visible:

.. rst-class:: classref-property

:ref:`bool<class_bool>` **visible** = ``true``

.. rst-class:: classref-property-setget

- void **set_visible** **(** :ref:`bool<class_bool>` value **)**
- :ref:`bool<class_bool>` **is_visible** **(** **)**

If ``false``, any :ref:`CanvasItem<class_CanvasItem>` under this **CanvasLayer** will be hidden.

Unlike :ref:`CanvasItem.visible<class_CanvasItem_property_visible>`, visibility of a **CanvasLayer** isn't propagated to underlying layers.

.. rst-class:: classref-section-separator

----

.. rst-class:: classref-descriptions-group

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

.. _class_CanvasLayer_method_get_canvas:

.. rst-class:: classref-method

:ref:`RID<class_RID>` **get_canvas** **(** **)** |const|

Returns the RID of the canvas used by this layer.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_method_get_final_transform:

.. rst-class:: classref-method

:ref:`Transform2D<class_Transform2D>` **get_final_transform** **(** **)** |const|

Returns the transform from the **CanvasLayer**\ s coordinate system to the :ref:`Viewport<class_Viewport>`\ s coordinate system.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_method_hide:

.. rst-class:: classref-method

void **hide** **(** **)**

Hides any :ref:`CanvasItem<class_CanvasItem>` under this **CanvasLayer**. This is equivalent to setting :ref:`visible<class_CanvasLayer_property_visible>` to ``false``.

.. rst-class:: classref-item-separator

----

.. _class_CanvasLayer_method_show:

.. rst-class:: classref-method

void **show** **(** **)**

Shows any :ref:`CanvasItem<class_CanvasItem>` under this **CanvasLayer**. This is equivalent to setting :ref:`visible<class_CanvasLayer_property_visible>` to ``true``.

.. |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.)`
.. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)`