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129 lines
5.3 KiB
ReStructuredText
129 lines
5.3 KiB
ReStructuredText
:github_url: hide
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.. _class_BackBufferCopy:
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BackBufferCopy
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==============
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**Hereda:** :ref:`Node2D<class_Node2D>` **<** :ref:`CanvasItem<class_CanvasItem>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`
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A node that copies a region of the screen to a buffer for access in shader code.
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.. rst-class:: classref-introduction-group
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Descripción
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----------------------
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Node for back-buffering the currently-displayed screen. The region defined in the **BackBufferCopy** node is buffered with the content of the screen it covers, or the entire screen according to the :ref:`copy_mode<class_BackBufferCopy_property_copy_mode>`. It can be accessed in shader scripts using the screen texture (i.e. a uniform sampler with ``hint_screen_texture``).
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\ **Note:** Since this node inherits from :ref:`Node2D<class_Node2D>` (and not :ref:`Control<class_Control>`), anchors and margins won't apply to child :ref:`Control<class_Control>`-derived nodes. This can be problematic when resizing the window. To avoid this, add :ref:`Control<class_Control>`-derived nodes as *siblings* to the **BackBufferCopy** node instead of adding them as children.
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.. rst-class:: classref-introduction-group
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Tutoriales
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--------------------
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- :doc:`Shaders de lectura de pantalla <../tutorials/shaders/screen-reading_shaders>`
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.. rst-class:: classref-reftable-group
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Propiedades
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----------------------
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.. table::
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:widths: auto
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+-----------------------------------------------+-----------------------------------------------------------+---------------------------------+
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| :ref:`CopyMode<enum_BackBufferCopy_CopyMode>` | :ref:`copy_mode<class_BackBufferCopy_property_copy_mode>` | ``1`` |
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+-----------------------------------------------+-----------------------------------------------------------+---------------------------------+
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| :ref:`Rect2<class_Rect2>` | :ref:`rect<class_BackBufferCopy_property_rect>` | ``Rect2(-100, -100, 200, 200)`` |
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+-----------------------------------------------+-----------------------------------------------------------+---------------------------------+
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Enumeraciones
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--------------------------
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.. _enum_BackBufferCopy_CopyMode:
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.. rst-class:: classref-enumeration
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enum **CopyMode**: :ref:`🔗<enum_BackBufferCopy_CopyMode>`
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.. _class_BackBufferCopy_constant_COPY_MODE_DISABLED:
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.. rst-class:: classref-enumeration-constant
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:ref:`CopyMode<enum_BackBufferCopy_CopyMode>` **COPY_MODE_DISABLED** = ``0``
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Disables the buffering mode. This means the **BackBufferCopy** node will directly use the portion of screen it covers.
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.. _class_BackBufferCopy_constant_COPY_MODE_RECT:
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.. rst-class:: classref-enumeration-constant
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:ref:`CopyMode<enum_BackBufferCopy_CopyMode>` **COPY_MODE_RECT** = ``1``
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**BackBufferCopy** almacena una región rectangular.
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.. _class_BackBufferCopy_constant_COPY_MODE_VIEWPORT:
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.. rst-class:: classref-enumeration-constant
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:ref:`CopyMode<enum_BackBufferCopy_CopyMode>` **COPY_MODE_VIEWPORT** = ``2``
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**BackBufferCopy** almacena toda la pantalla.
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.. rst-class:: classref-section-separator
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----
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.. rst-class:: classref-descriptions-group
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Descripciones de Propiedades
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--------------------------------------------------------
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.. _class_BackBufferCopy_property_copy_mode:
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.. rst-class:: classref-property
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:ref:`CopyMode<enum_BackBufferCopy_CopyMode>` **copy_mode** = ``1`` :ref:`🔗<class_BackBufferCopy_property_copy_mode>`
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.. rst-class:: classref-property-setget
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- |void| **set_copy_mode**\ (\ value\: :ref:`CopyMode<enum_BackBufferCopy_CopyMode>`\ )
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- :ref:`CopyMode<enum_BackBufferCopy_CopyMode>` **get_copy_mode**\ (\ )
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Modo de búfer.
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.. rst-class:: classref-item-separator
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----
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.. _class_BackBufferCopy_property_rect:
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.. rst-class:: classref-property
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:ref:`Rect2<class_Rect2>` **rect** = ``Rect2(-100, -100, 200, 200)`` :ref:`🔗<class_BackBufferCopy_property_rect>`
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.. rst-class:: classref-property-setget
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- |void| **set_rect**\ (\ value\: :ref:`Rect2<class_Rect2>`\ )
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- :ref:`Rect2<class_Rect2>` **get_rect**\ (\ )
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The area covered by the **BackBufferCopy**. Only used if :ref:`copy_mode<class_BackBufferCopy_property_copy_mode>` is :ref:`COPY_MODE_RECT<class_BackBufferCopy_constant_COPY_MODE_RECT>`.
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.. |virtual| replace:: :abbr:`virtual (Normalmente, este método debería ser sobreescrito por el usuario para que tenga algún efecto.)`
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.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
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.. |const| replace:: :abbr:`const (Este método no tiene efectos secundarios. No modifica ninguna de las variables miembro de la instancia.)`
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.. |vararg| replace:: :abbr:`vararg (Este método permite agregar cualquier número de argumentos después de los descritos aquí.)`
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.. |constructor| replace:: :abbr:`constructor (Este método se utiliza para construir un tipo.)`
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.. |static| replace:: :abbr:`static (Este método no necesita una instancia para ser llamado, por lo que puede llamarse directamente utilizando el nombre de la clase.)`
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.. |operator| replace:: :abbr:`operator (Este método describe un operador válido para usar con este tipo como operando izquierdo.)`
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.. |bitfield| replace:: :abbr:`BitField (Este valor es un entero compuesto como una máscara de bits de las siguientes banderas.)`
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.. |void| replace:: :abbr:`void (Sin valor de retorno.)`
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