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135 lines
6.1 KiB
ReStructuredText
135 lines
6.1 KiB
ReStructuredText
:github_url: hide
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.. _class_CurveTexture:
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CurveTexture
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============
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**继承：** :ref:`Texture2D<class_Texture2D>` **<** :ref:`Texture<class_Texture>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
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一维纹理，像素亮度对应于曲线上的点。
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.. rst-class:: classref-introduction-group
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描述
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----
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一维纹理，像素亮度对应于单位 :ref:`Curve<class_Curve>` 资源上的点，可以是灰度图或红色图。这种视觉表达简化了将曲线保存为图像文件的任务。
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如果你需要在单个纹理中存储最多 3 条曲线，请改用 :ref:`CurveXYZTexture<class_CurveXYZTexture>`\ 。另见 :ref:`GradientTexture1D<class_GradientTexture1D>` 和 :ref:`GradientTexture2D<class_GradientTexture2D>`\ 。
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.. rst-class:: classref-reftable-group
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属性
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----
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.. table::
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:widths: auto
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+---------------------------------------------------+---------------------------------------------------------------+----------------------------------------------------------------------------------------+
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| :ref:`Curve<class_Curve>` | :ref:`curve<class_CurveTexture_property_curve>` | |
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+---------------------------------------------------+---------------------------------------------------------------+----------------------------------------------------------------------------------------+
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| :ref:`bool<class_bool>` | resource_local_to_scene | ``false`` (overrides :ref:`Resource<class_Resource_property_resource_local_to_scene>`) |
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+---------------------------------------------------+---------------------------------------------------------------+----------------------------------------------------------------------------------------+
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| :ref:`TextureMode<enum_CurveTexture_TextureMode>` | :ref:`texture_mode<class_CurveTexture_property_texture_mode>` | ``0`` |
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+---------------------------------------------------+---------------------------------------------------------------+----------------------------------------------------------------------------------------+
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| :ref:`int<class_int>` | :ref:`width<class_CurveTexture_property_width>` | ``256`` |
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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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枚举
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----
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.. _enum_CurveTexture_TextureMode:
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.. rst-class:: classref-enumeration
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enum **TextureMode**: :ref:`🔗<enum_CurveTexture_TextureMode>`
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.. _class_CurveTexture_constant_TEXTURE_MODE_RGB:
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.. rst-class:: classref-enumeration-constant
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:ref:`TextureMode<enum_CurveTexture_TextureMode>` **TEXTURE_MODE_RGB** = ``0``
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将曲线平均存储在红色、绿色和蓝色通道上。这会使用更多的显存，但与只读取绿色和蓝色值的着色器更兼容。
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.. _class_CurveTexture_constant_TEXTURE_MODE_RED:
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.. rst-class:: classref-enumeration-constant
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:ref:`TextureMode<enum_CurveTexture_TextureMode>` **TEXTURE_MODE_RED** = ``1``
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仅将曲线存储在红色通道中。这可以节省显存，但某些自定义着色器可能无法使用它。
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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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属性说明
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--------
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.. _class_CurveTexture_property_curve:
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.. rst-class:: classref-property
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:ref:`Curve<class_Curve>` **curve** :ref:`🔗<class_CurveTexture_property_curve>`
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.. rst-class:: classref-property-setget
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- |void| **set_curve**\ (\ value\: :ref:`Curve<class_Curve>`\ )
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- :ref:`Curve<class_Curve>` **get_curve**\ (\ )
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渲染到该纹理上的 :ref:`Curve<class_Curve>`\ 。应当为单位 :ref:`Curve<class_Curve>`\ 。
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.. rst-class:: classref-item-separator
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----
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.. _class_CurveTexture_property_texture_mode:
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.. rst-class:: classref-property
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:ref:`TextureMode<enum_CurveTexture_TextureMode>` **texture_mode** = ``0`` :ref:`🔗<class_CurveTexture_property_texture_mode>`
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.. rst-class:: classref-property-setget
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- |void| **set_texture_mode**\ (\ value\: :ref:`TextureMode<enum_CurveTexture_TextureMode>`\ )
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- :ref:`TextureMode<enum_CurveTexture_TextureMode>` **get_texture_mode**\ (\ )
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生成纹理时应使用的格式。将 CurveTexture 作为输入传递给 :ref:`Shader<class_Shader>` 时，可能需要调整。
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.. rst-class:: classref-item-separator
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----
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.. _class_CurveTexture_property_width:
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.. rst-class:: classref-property
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:ref:`int<class_int>` **width** = ``256`` :ref:`🔗<class_CurveTexture_property_width>`
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.. rst-class:: classref-property-setget
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- |void| **set_width**\ (\ value\: :ref:`int<class_int>`\ )
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- :ref:`int<class_int>` **get_width**\ (\ )
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纹理宽度（单位为像素）。较大的值能够更好地表示高频数据（例如方向的突变），但会增加生成时间和内存占用。
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.. |virtual| replace:: :abbr:`virtual (本方法通常需要用户覆盖才能生效。)`
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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 (本方法无副作用，不会修改该实例的任何成员变量。)`
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.. |vararg| replace:: :abbr:`vararg (本方法除了能接受在此处描述的参数外，还能够继续接受任意数量的参数。)`
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.. |constructor| replace:: :abbr:`constructor (本方法用于构造某个类型。)`
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.. |static| replace:: :abbr:`static (调用本方法无需实例，可直接使用类名进行调用。)`
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.. |operator| replace:: :abbr:`operator (本方法描述的是使用本类型作为左操作数的有效运算符。)`
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.. |bitfield| replace:: :abbr:`BitField (这个值是由下列位标志构成位掩码的整数。)`
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.. |void| replace:: :abbr:`void (无返回值。)`
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