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66 lines
3.1 KiB
ReStructuredText
66 lines
3.1 KiB
ReStructuredText
:github_url: hide
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.. _class_VisualShaderNodeExpression:
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VisualShaderNodeExpression
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==========================
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**繼承：** :ref:`VisualShaderNodeGroupBase<class_VisualShaderNodeGroupBase>` **<** :ref:`VisualShaderNodeResizableBase<class_VisualShaderNodeResizableBase>` **<** :ref:`VisualShaderNode<class_VisualShaderNode>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
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**被繼承：** :ref:`VisualShaderNodeGlobalExpression<class_VisualShaderNodeGlobalExpression>`
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用Godot著色語言編寫的自訂視覺化著色器圖形運算式。
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.. rst-class:: classref-introduction-group
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說明
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----
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自訂 Godot 著色器語言運算式，有自訂數量的輸入和輸出埠。
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所提供的程式碼會直接注入到著色器圖中配對的著色器函式中（\ ``vertex``\ 、\ ``fragment`` 或 ``light``\ ），所以不能用於宣告函式、varying、uniform 或全域常數。這種全域定義見 :ref:`VisualShaderNodeGlobalExpression<class_VisualShaderNodeGlobalExpression>`\ 。
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.. rst-class:: classref-reftable-group
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屬性
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----
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.. table::
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:widths: auto
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+-----------------------------+-------------------------------------------------------------------------+--------+
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| :ref:`String<class_String>` | :ref:`expression<class_VisualShaderNodeExpression_property_expression>` | ``""`` |
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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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屬性說明
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--------
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.. _class_VisualShaderNodeExpression_property_expression:
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.. rst-class:: classref-property
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:ref:`String<class_String>` **expression** = ``""`` :ref:`🔗<class_VisualShaderNodeExpression_property_expression>`
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.. rst-class:: classref-property-setget
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- |void| **set_expression**\ (\ value\: :ref:`String<class_String>`\ )
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- :ref:`String<class_String>` **get_expression**\ (\ )
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Godot 著色器語言中的運算式，它將被注入到圖形配對的著色器函式（\ ``vertex``\ 、\ ``fragment`` 或 ``light``\ ）的開頭，因此不能用於宣告函式、varying、uniform 或全域常數。
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要使用者覆寫才能生效。)`
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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 (本方法沒有副作用。不會修改該實例的任何成員變數。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了這裡描述的參數外，還可以接受任意數量的參數。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用於建構一個型別。)`
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.. |static| replace:: :abbr:`static (本方法無需實例即可呼叫，因此可以直接使用類別名稱呼叫。)`
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.. |operator| replace:: :abbr:`operator (本方法描述將本型別作為左運算元時可用的有效運算子。)`
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.. |bitfield| replace:: :abbr:`BitField (此值是由下列旗標組成的位元遮罩整數。)`
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.. |void| replace:: :abbr:`void (無回傳值。)`
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