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classes/class_backbuffercopy.rst
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@@ -12,14 +12,14 @@ BackBufferCopy
**Inherits:** :ref:`Node2D<class_Node2D>` **<** :ref:`CanvasItem<class_CanvasItem>` **<** :ref:`Node<class_Node>` **<** :ref:`Object<class_Object>`
Copies a region of the screen (or the whole screen) to a buffer so it can be accessed in your shader scripts using the screen texture (i.e. a uniform sampler with ``hint_screen_texture``).
A node that copies a region of the screen to a buffer for access in shader code.
.. rst-class:: classref-introduction-group
Description
-----------
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 copy mode set. Use the screen texture in your shader scripts to access the buffer.
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``).
\ **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.