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275 lines
13 KiB
ReStructuredText
275 lines
13 KiB
ReStructuredText
:github_url: hide
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.. _class_GLTFLight:
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GLTFLight
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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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Represents a glTF light.
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.. rst-class:: classref-introduction-group
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說明
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----
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Represents a light as defined by the ``KHR_lights_punctual`` glTF extension.
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.. rst-class:: classref-introduction-group
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教學
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----
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- :doc:`執行時檔案載入與儲存 <../tutorials/io/runtime_file_loading_and_saving>`
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- `KHR_lights_punctual glTF extension spec <https://github.com/KhronosGroup/glTF/blob/main/extensions/2.0/Khronos/KHR_lights_punctual>`__
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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:`Color<class_Color>` | :ref:`color<class_GLTFLight_property_color>` | ``Color(1, 1, 1, 1)`` |
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+-----------------------------+--------------------------------------------------------------------+-----------------------+
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| :ref:`float<class_float>` | :ref:`inner_cone_angle<class_GLTFLight_property_inner_cone_angle>` | ``0.0`` |
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+-----------------------------+--------------------------------------------------------------------+-----------------------+
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| :ref:`float<class_float>` | :ref:`intensity<class_GLTFLight_property_intensity>` | ``1.0`` |
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+-----------------------------+--------------------------------------------------------------------+-----------------------+
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| :ref:`String<class_String>` | :ref:`light_type<class_GLTFLight_property_light_type>` | ``""`` |
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+-----------------------------+--------------------------------------------------------------------+-----------------------+
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| :ref:`float<class_float>` | :ref:`outer_cone_angle<class_GLTFLight_property_outer_cone_angle>` | ``0.7853982`` |
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+-----------------------------+--------------------------------------------------------------------+-----------------------+
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| :ref:`float<class_float>` | :ref:`range<class_GLTFLight_property_range>` | ``inf`` |
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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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| :ref:`GLTFLight<class_GLTFLight>` | :ref:`from_dictionary<class_GLTFLight_method_from_dictionary>`\ (\ dictionary\: :ref:`Dictionary<class_Dictionary>`\ ) |static| |
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+-------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`GLTFLight<class_GLTFLight>` | :ref:`from_node<class_GLTFLight_method_from_node>`\ (\ light_node\: :ref:`Light3D<class_Light3D>`\ ) |static| |
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+-------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Variant<class_Variant>` | :ref:`get_additional_data<class_GLTFLight_method_get_additional_data>`\ (\ extension_name\: :ref:`StringName<class_StringName>`\ ) |
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+-------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_additional_data<class_GLTFLight_method_set_additional_data>`\ (\ extension_name\: :ref:`StringName<class_StringName>`, additional_data\: :ref:`Variant<class_Variant>`\ ) |
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+-------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Dictionary<class_Dictionary>` | :ref:`to_dictionary<class_GLTFLight_method_to_dictionary>`\ (\ ) |const| |
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+-------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Light3D<class_Light3D>` | :ref:`to_node<class_GLTFLight_method_to_node>`\ (\ ) |const| |
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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_GLTFLight_property_color:
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.. rst-class:: classref-property
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:ref:`Color<class_Color>` **color** = ``Color(1, 1, 1, 1)`` :ref:`🔗<class_GLTFLight_property_color>`
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.. rst-class:: classref-property-setget
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- |void| **set_color**\ (\ value\: :ref:`Color<class_Color>`\ )
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- :ref:`Color<class_Color>` **get_color**\ (\ )
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The :ref:`Color<class_Color>` of the light in linear space. Defaults to white. A black color causes the light to have no effect.
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This value is linear to match glTF, but will be converted to nonlinear sRGB when creating a Godot :ref:`Light3D<class_Light3D>` node upon import, or converted to linear when exporting a Godot :ref:`Light3D<class_Light3D>` to glTF.
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_property_inner_cone_angle:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **inner_cone_angle** = ``0.0`` :ref:`🔗<class_GLTFLight_property_inner_cone_angle>`
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.. rst-class:: classref-property-setget
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- |void| **set_inner_cone_angle**\ (\ value\: :ref:`float<class_float>`\ )
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- :ref:`float<class_float>` **get_inner_cone_angle**\ (\ )
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聚光燈下圓錐體的內角。必須小於等於外錐角。
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在這個角度內，光線處於全亮狀態。在內錐角和外錐角之間，存在一個從全亮度到零亮度的過渡。建立 Godot :ref:`SpotLight3D<class_SpotLight3D>` 時，內外錐角之間的比率將被來計算光的衰減。
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_property_intensity:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **intensity** = ``1.0`` :ref:`🔗<class_GLTFLight_property_intensity>`
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.. rst-class:: classref-property-setget
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- |void| **set_intensity**\ (\ value\: :ref:`float<class_float>`\ )
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- :ref:`float<class_float>` **get_intensity**\ (\ )
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光的強度。對於點光和聚光，用燭光（流明/立體光）表示；對於平行光，用勒克斯（流明/平方米）表示。在建立 Godot 燈光時，這個值會被轉換為無單位的乘數。
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_property_light_type:
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.. rst-class:: classref-property
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:ref:`String<class_String>` **light_type** = ``""`` :ref:`🔗<class_GLTFLight_property_light_type>`
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.. rst-class:: classref-property-setget
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- |void| **set_light_type**\ (\ value\: :ref:`String<class_String>`\ )
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- :ref:`String<class_String>` **get_light_type**\ (\ )
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燈光的型別。Godot接受的值有“point”、“spot”、“directional”，分別對應 Godot 的 :ref:`OmniLight3D<class_OmniLight3D>`\ 、\ :ref:`SpotLight3D<class_SpotLight3D>`\ 、\ :ref:`DirectionalLight3D<class_DirectionalLight3D>`\ 。
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_property_outer_cone_angle:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **outer_cone_angle** = ``0.7853982`` :ref:`🔗<class_GLTFLight_property_outer_cone_angle>`
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.. rst-class:: classref-property-setget
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- |void| **set_outer_cone_angle**\ (\ value\: :ref:`float<class_float>`\ )
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- :ref:`float<class_float>` **get_outer_cone_angle**\ (\ )
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聚光燈下圓錐體的外角。必須大於等於內錐角。
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在這個角度，光線會下降到零亮度。在內錐角和外錐角之間，存在一個從全亮度到零亮度的過渡。如果這個角度是一個半圓，那麼聚光燈會向所有方向發射。建立一個 Godot :ref:`SpotLight3D<class_SpotLight3D>` 時，外錐角被用作聚光燈的角度。
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_property_range:
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.. rst-class:: classref-property
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:ref:`float<class_float>` **range** = ``inf`` :ref:`🔗<class_GLTFLight_property_range>`
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.. rst-class:: classref-property-setget
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- |void| **set_range**\ (\ value\: :ref:`float<class_float>`\ )
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- :ref:`float<class_float>` **get_range**\ (\ )
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The range of the light, beyond which the light has no effect. glTF lights with no range defined behave like physical lights (which have infinite range). When creating a Godot light, the range is clamped to ``4096.0``.
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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_GLTFLight_method_from_dictionary:
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.. rst-class:: classref-method
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:ref:`GLTFLight<class_GLTFLight>` **from_dictionary**\ (\ dictionary\: :ref:`Dictionary<class_Dictionary>`\ ) |static| :ref:`🔗<class_GLTFLight_method_from_dictionary>`
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通過解析給定的 :ref:`Dictionary<class_Dictionary>` 新建 GLTFLight 實例。
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_method_from_node:
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.. rst-class:: classref-method
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:ref:`GLTFLight<class_GLTFLight>` **from_node**\ (\ light_node\: :ref:`Light3D<class_Light3D>`\ ) |static| :ref:`🔗<class_GLTFLight_method_from_node>`
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從給定的 Godot :ref:`Light3D<class_Light3D>` 節點新建 GLTFLight 實例。
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_method_get_additional_data:
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.. rst-class:: classref-method
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:ref:`Variant<class_Variant>` **get_additional_data**\ (\ extension_name\: :ref:`StringName<class_StringName>`\ ) :ref:`🔗<class_GLTFLight_method_get_additional_data>`
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.. container:: contribute
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There is currently no description for this method. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_method_set_additional_data:
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.. rst-class:: classref-method
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|void| **set_additional_data**\ (\ extension_name\: :ref:`StringName<class_StringName>`, additional_data\: :ref:`Variant<class_Variant>`\ ) :ref:`🔗<class_GLTFLight_method_set_additional_data>`
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.. container:: contribute
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There is currently no description for this method. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_method_to_dictionary:
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.. rst-class:: classref-method
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:ref:`Dictionary<class_Dictionary>` **to_dictionary**\ (\ ) |const| :ref:`🔗<class_GLTFLight_method_to_dictionary>`
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將這個 GLTFLight 實例序列化為 :ref:`Dictionary<class_Dictionary>`\ 。
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.. rst-class:: classref-item-separator
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----
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.. _class_GLTFLight_method_to_node:
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.. rst-class:: classref-method
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:ref:`Light3D<class_Light3D>` **to_node**\ (\ ) |const| :ref:`🔗<class_GLTFLight_method_to_node>`
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將這個 GLTFLight 實例轉換為 Godot :ref:`Light3D<class_Light3D>` 節點。
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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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