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298 lines
17 KiB
ReStructuredText
298 lines
17 KiB
ReStructuredText
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.. _class_VisualShaderNode:
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VisualShaderNode
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================
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**繼承：** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
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**被繼承：** :ref:`VisualShaderNodeBillboard<class_VisualShaderNodeBillboard>`, :ref:`VisualShaderNodeClamp<class_VisualShaderNodeClamp>`, :ref:`VisualShaderNodeColorFunc<class_VisualShaderNodeColorFunc>`, :ref:`VisualShaderNodeColorOp<class_VisualShaderNodeColorOp>`, :ref:`VisualShaderNodeCompare<class_VisualShaderNodeCompare>`, :ref:`VisualShaderNodeConstant<class_VisualShaderNodeConstant>`, :ref:`VisualShaderNodeCubemap<class_VisualShaderNodeCubemap>`, :ref:`VisualShaderNodeCustom<class_VisualShaderNodeCustom>`, :ref:`VisualShaderNodeDerivativeFunc<class_VisualShaderNodeDerivativeFunc>`, :ref:`VisualShaderNodeDeterminant<class_VisualShaderNodeDeterminant>`, :ref:`VisualShaderNodeDistanceFade<class_VisualShaderNodeDistanceFade>`, :ref:`VisualShaderNodeDotProduct<class_VisualShaderNodeDotProduct>`, :ref:`VisualShaderNodeFloatFunc<class_VisualShaderNodeFloatFunc>`, :ref:`VisualShaderNodeFloatOp<class_VisualShaderNodeFloatOp>`, :ref:`VisualShaderNodeFresnel<class_VisualShaderNodeFresnel>`, :ref:`VisualShaderNodeIf<class_VisualShaderNodeIf>`, :ref:`VisualShaderNodeInput<class_VisualShaderNodeInput>`, :ref:`VisualShaderNodeIntFunc<class_VisualShaderNodeIntFunc>`, :ref:`VisualShaderNodeIntOp<class_VisualShaderNodeIntOp>`, :ref:`VisualShaderNodeIs<class_VisualShaderNodeIs>`, :ref:`VisualShaderNodeLinearSceneDepth<class_VisualShaderNodeLinearSceneDepth>`, :ref:`VisualShaderNodeMix<class_VisualShaderNodeMix>`, :ref:`VisualShaderNodeMultiplyAdd<class_VisualShaderNodeMultiplyAdd>`, :ref:`VisualShaderNodeOuterProduct<class_VisualShaderNodeOuterProduct>`, :ref:`VisualShaderNodeOutput<class_VisualShaderNodeOutput>`, :ref:`VisualShaderNodeParameter<class_VisualShaderNodeParameter>`, :ref:`VisualShaderNodeParameterRef<class_VisualShaderNodeParameterRef>`, :ref:`VisualShaderNodeParticleAccelerator<class_VisualShaderNodeParticleAccelerator>`, :ref:`VisualShaderNodeParticleConeVelocity<class_VisualShaderNodeParticleConeVelocity>`, :ref:`VisualShaderNodeParticleEmit<class_VisualShaderNodeParticleEmit>`, :ref:`VisualShaderNodeParticleEmitter<class_VisualShaderNodeParticleEmitter>`, :ref:`VisualShaderNodeParticleMultiplyByAxisAngle<class_VisualShaderNodeParticleMultiplyByAxisAngle>`, :ref:`VisualShaderNodeParticleRandomness<class_VisualShaderNodeParticleRandomness>`, :ref:`VisualShaderNodeProximityFade<class_VisualShaderNodeProximityFade>`, :ref:`VisualShaderNodeRandomRange<class_VisualShaderNodeRandomRange>`, :ref:`VisualShaderNodeRemap<class_VisualShaderNodeRemap>`, :ref:`VisualShaderNodeReroute<class_VisualShaderNodeReroute>`, :ref:`VisualShaderNodeResizableBase<class_VisualShaderNodeResizableBase>`, :ref:`VisualShaderNodeRotationByAxis<class_VisualShaderNodeRotationByAxis>`, :ref:`VisualShaderNodeSample3D<class_VisualShaderNodeSample3D>`, :ref:`VisualShaderNodeScreenNormalWorldSpace<class_VisualShaderNodeScreenNormalWorldSpace>`, :ref:`VisualShaderNodeScreenUVToSDF<class_VisualShaderNodeScreenUVToSDF>`, :ref:`VisualShaderNodeSDFRaymarch<class_VisualShaderNodeSDFRaymarch>`, :ref:`VisualShaderNodeSDFToScreenUV<class_VisualShaderNodeSDFToScreenUV>`, :ref:`VisualShaderNodeSmoothStep<class_VisualShaderNodeSmoothStep>`, :ref:`VisualShaderNodeStep<class_VisualShaderNodeStep>`, :ref:`VisualShaderNodeSwitch<class_VisualShaderNodeSwitch>`, :ref:`VisualShaderNodeTexture<class_VisualShaderNodeTexture>`, :ref:`VisualShaderNodeTextureSDF<class_VisualShaderNodeTextureSDF>`, :ref:`VisualShaderNodeTextureSDFNormal<class_VisualShaderNodeTextureSDFNormal>`, :ref:`VisualShaderNodeTransformCompose<class_VisualShaderNodeTransformCompose>`, :ref:`VisualShaderNodeTransformDecompose<class_VisualShaderNodeTransformDecompose>`, :ref:`VisualShaderNodeTransformFunc<class_VisualShaderNodeTransformFunc>`, :ref:`VisualShaderNodeTransformOp<class_VisualShaderNodeTransformOp>`, :ref:`VisualShaderNodeTransformVecMult<class_VisualShaderNodeTransformVecMult>`, :ref:`VisualShaderNodeUIntFunc<class_VisualShaderNodeUIntFunc>`, :ref:`VisualShaderNodeUIntOp<class_VisualShaderNodeUIntOp>`, :ref:`VisualShaderNodeUVFunc<class_VisualShaderNodeUVFunc>`, :ref:`VisualShaderNodeUVPolarCoord<class_VisualShaderNodeUVPolarCoord>`, :ref:`VisualShaderNodeVarying<class_VisualShaderNodeVarying>`, :ref:`VisualShaderNodeVectorBase<class_VisualShaderNodeVectorBase>`, :ref:`VisualShaderNodeWorldPositionFromDepth<class_VisualShaderNodeWorldPositionFromDepth>`
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:ref:`AnimationTree<class_AnimationTree>` 節點的基底類別。與場景節點無關。
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.. rst-class:: classref-introduction-group
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說明
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----
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視覺化著色器圖由各種節點組成。圖中的每個節點都是一個獨立的物件，它們被表示為帶有標題和一系列屬性的矩形框。每個節點都有連接埠，可以將其連接到另一個節點並控制著色器的流程。
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.. rst-class:: classref-introduction-group
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教學
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----
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- :doc:`使用視覺化著色器 <../tutorials/shaders/visual_shaders>`
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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:`int<class_int>` | :ref:`linked_parent_graph_frame<class_VisualShaderNode_property_linked_parent_graph_frame>` | ``-1`` |
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+-----------------------+---------------------------------------------------------------------------------------------+--------+
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| :ref:`int<class_int>` | :ref:`output_port_for_preview<class_VisualShaderNode_property_output_port_for_preview>` | ``-1`` |
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+-----------------------+---------------------------------------------------------------------------------------------+--------+
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.. rst-class:: classref-reftable-group
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方法
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----
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.. table::
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:widths: auto
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+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`clear_default_input_values<class_VisualShaderNode_method_clear_default_input_values>`\ (\ ) |
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+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`int<class_int>` | :ref:`get_default_input_port<class_VisualShaderNode_method_get_default_input_port>`\ (\ type\: :ref:`PortType<enum_VisualShaderNode_PortType>`\ ) |const| |
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+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Array<class_Array>` | :ref:`get_default_input_values<class_VisualShaderNode_method_get_default_input_values>`\ (\ ) |const| |
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+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Variant<class_Variant>` | :ref:`get_input_port_default_value<class_VisualShaderNode_method_get_input_port_default_value>`\ (\ port\: :ref:`int<class_int>`\ ) |const| |
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+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`remove_input_port_default_value<class_VisualShaderNode_method_remove_input_port_default_value>`\ (\ port\: :ref:`int<class_int>`\ ) |
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+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_default_input_values<class_VisualShaderNode_method_set_default_input_values>`\ (\ values\: :ref:`Array<class_Array>`\ ) |
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+-------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_input_port_default_value<class_VisualShaderNode_method_set_input_port_default_value>`\ (\ port\: :ref:`int<class_int>`, value\: :ref:`Variant<class_Variant>`, prev_value\: :ref:`Variant<class_Variant>` = null\ ) |
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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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列舉
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----
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.. _enum_VisualShaderNode_PortType:
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.. rst-class:: classref-enumeration
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enum **PortType**: :ref:`🔗<enum_VisualShaderNode_PortType>`
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.. _class_VisualShaderNode_constant_PORT_TYPE_SCALAR:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_SCALAR** = ``0``
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Floating-point scalar. Translated to ``float`` type in shader code.
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.. _class_VisualShaderNode_constant_PORT_TYPE_SCALAR_INT:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_SCALAR_INT** = ``1``
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Integer scalar. Translated to ``int`` type in shader code.
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.. _class_VisualShaderNode_constant_PORT_TYPE_SCALAR_UINT:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_SCALAR_UINT** = ``2``
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Unsigned integer scalar. Translated to ``uint`` type in shader code.
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.. _class_VisualShaderNode_constant_PORT_TYPE_VECTOR_2D:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_VECTOR_2D** = ``3``
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2D vector of floating-point values. Translated to ``vec2`` type in shader code.
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.. _class_VisualShaderNode_constant_PORT_TYPE_VECTOR_3D:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_VECTOR_3D** = ``4``
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3D vector of floating-point values. Translated to ``vec3`` type in shader code.
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.. _class_VisualShaderNode_constant_PORT_TYPE_VECTOR_4D:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_VECTOR_4D** = ``5``
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4D vector of floating-point values. Translated to ``vec4`` type in shader code.
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.. _class_VisualShaderNode_constant_PORT_TYPE_BOOLEAN:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_BOOLEAN** = ``6``
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Boolean type. Translated to ``bool`` type in shader code.
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.. _class_VisualShaderNode_constant_PORT_TYPE_TRANSFORM:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_TRANSFORM** = ``7``
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Transform type. Translated to ``mat4`` type in shader code.
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.. _class_VisualShaderNode_constant_PORT_TYPE_SAMPLER:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_SAMPLER** = ``8``
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取樣器型別。在著色器程式碼中，會被翻譯為對取樣器 uniform 的引用。只能用於非 uniform 節點的輸入埠。
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.. _class_VisualShaderNode_constant_PORT_TYPE_MAX:
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.. rst-class:: classref-enumeration-constant
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:ref:`PortType<enum_VisualShaderNode_PortType>` **PORT_TYPE_MAX** = ``9``
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表示 :ref:`PortType<enum_VisualShaderNode_PortType>` 列舉的大小。
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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_VisualShaderNode_property_linked_parent_graph_frame:
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.. rst-class:: classref-property
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:ref:`int<class_int>` **linked_parent_graph_frame** = ``-1`` :ref:`🔗<class_VisualShaderNode_property_linked_parent_graph_frame>`
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.. rst-class:: classref-property-setget
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- |void| **set_frame**\ (\ value\: :ref:`int<class_int>`\ )
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- :ref:`int<class_int>` **get_frame**\ (\ )
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Represents the index of the frame this node is linked to. If set to ``-1`` the node is not linked to any frame.
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.. rst-class:: classref-item-separator
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----
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.. _class_VisualShaderNode_property_output_port_for_preview:
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.. rst-class:: classref-property
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:ref:`int<class_int>` **output_port_for_preview** = ``-1`` :ref:`🔗<class_VisualShaderNode_property_output_port_for_preview>`
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.. rst-class:: classref-property-setget
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- |void| **set_output_port_for_preview**\ (\ value\: :ref:`int<class_int>`\ )
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- :ref:`int<class_int>` **get_output_port_for_preview**\ (\ )
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設定將被顯示為預覽的輸出埠索引。如果設定為\ ``-1``\ ，則沒有埠會被打開進行預覽。
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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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方法說明
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--------
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.. _class_VisualShaderNode_method_clear_default_input_values:
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.. rst-class:: classref-method
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|void| **clear_default_input_values**\ (\ ) :ref:`🔗<class_VisualShaderNode_method_clear_default_input_values>`
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清除預設輸入埠值。
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.. rst-class:: classref-item-separator
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----
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.. _class_VisualShaderNode_method_get_default_input_port:
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.. rst-class:: classref-method
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:ref:`int<class_int>` **get_default_input_port**\ (\ type\: :ref:`PortType<enum_VisualShaderNode_PortType>`\ ) |const| :ref:`🔗<class_VisualShaderNode_method_get_default_input_port>`
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由於將連接從現有節點拖曳到圖形上的空白區域而建立此節點時，返回預設應連接的輸入連接埠。
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.. rst-class:: classref-item-separator
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----
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.. _class_VisualShaderNode_method_get_default_input_values:
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.. rst-class:: classref-method
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:ref:`Array<class_Array>` **get_default_input_values**\ (\ ) |const| :ref:`🔗<class_VisualShaderNode_method_get_default_input_values>`
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返回一個包含節點所有輸入埠預設值的 :ref:`Array<class_Array>`\ ，形式為 ``[index0, value0, index1, value1, ...]``\ 。
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.. rst-class:: classref-item-separator
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----
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.. _class_VisualShaderNode_method_get_input_port_default_value:
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.. rst-class:: classref-method
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:ref:`Variant<class_Variant>` **get_input_port_default_value**\ (\ port\: :ref:`int<class_int>`\ ) |const| :ref:`🔗<class_VisualShaderNode_method_get_input_port_default_value>`
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返回輸入埠 ``port`` 的預設值。
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.. rst-class:: classref-item-separator
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----
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.. _class_VisualShaderNode_method_remove_input_port_default_value:
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.. rst-class:: classref-method
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|void| **remove_input_port_default_value**\ (\ port\: :ref:`int<class_int>`\ ) :ref:`🔗<class_VisualShaderNode_method_remove_input_port_default_value>`
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移除輸入埠 ``port`` 的預設值。
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.. rst-class:: classref-item-separator
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----
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.. _class_VisualShaderNode_method_set_default_input_values:
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.. rst-class:: classref-method
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|void| **set_default_input_values**\ (\ values\: :ref:`Array<class_Array>`\ ) :ref:`🔗<class_VisualShaderNode_method_set_default_input_values>`
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使用 ``[index0, value0, index1, value1, ...]`` 形式的 :ref:`Array<class_Array>` 設定默認輸入埠值。例如: ``[0, Vector3(0, 0, 0), 1, Vector3(0, 0, 0)]``\ 。
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.. rst-class:: classref-item-separator
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----
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.. _class_VisualShaderNode_method_set_input_port_default_value:
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.. rst-class:: classref-method
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|void| **set_input_port_default_value**\ (\ port\: :ref:`int<class_int>`, value\: :ref:`Variant<class_Variant>`, prev_value\: :ref:`Variant<class_Variant>` = null\ ) :ref:`🔗<class_VisualShaderNode_method_set_input_port_default_value>`
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設定輸入埠 ``port`` 的預設值 ``value``\ 。
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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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