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.. _class_XRInterface:
XRInterface
===========
**繼承：** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
**被繼承：** :ref:`MobileVRInterface<class_MobileVRInterface>`, :ref:`OpenXRInterface<class_OpenXRInterface>`, :ref:`WebXRInterface<class_WebXRInterface>`, :ref:`XRInterfaceExtension<class_XRInterfaceExtension>`
XR 介面實作的基底類別。
.. rst-class:: classref-introduction-group
說明
----
需要實作該類以使 Godot 可以使用 AR 或 VR 平臺，並且這些應作為 C++ 模組或 GDExtension 模組實作。部分介面公開給 GDScript，因此可以偵測、啟用和配置 AR 或 VR 平臺。
介面應該以這樣一種方式編寫，只要簡單地啟用它們就會提供一個工作設定。可以通過 :ref:`XRServer<class_XRServer>` 查詢可用的介面。
.. rst-class:: classref-introduction-group
教學
----
- :doc:`XR 文件索引 <../tutorials/xr/index>`
.. rst-class:: classref-reftable-group
屬性
----
.. table::
:widths: auto
+--------------------------------------------------------------------+--------------------------------------------------------------------------------------------------+-----------+
| :ref:`bool<class_bool>` | :ref:`ar_is_anchor_detection_enabled<class_XRInterface_property_ar_is_anchor_detection_enabled>` | ``false`` |
+--------------------------------------------------------------------+--------------------------------------------------------------------------------------------------+-----------+
| :ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>` | :ref:`environment_blend_mode<class_XRInterface_property_environment_blend_mode>` | ``0`` |
+--------------------------------------------------------------------+--------------------------------------------------------------------------------------------------+-----------+
| :ref:`bool<class_bool>` | :ref:`interface_is_primary<class_XRInterface_property_interface_is_primary>` | ``false`` |
+--------------------------------------------------------------------+--------------------------------------------------------------------------------------------------+-----------+
| :ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` | :ref:`xr_play_area_mode<class_XRInterface_property_xr_play_area_mode>` | ``0`` |
+--------------------------------------------------------------------+--------------------------------------------------------------------------------------------------+-----------+
.. rst-class:: classref-reftable-group
方法
----
.. table::
:widths: auto
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`get_camera_feed_id<class_XRInterface_method_get_camera_feed_id>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`get_capabilities<class_XRInterface_method_get_capabilities>`\ (\ ) |const| |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`StringName<class_StringName>` | :ref:`get_name<class_XRInterface_method_get_name>`\ (\ ) |const| |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`PackedVector3Array<class_PackedVector3Array>` | :ref:`get_play_area<class_XRInterface_method_get_play_area>`\ (\ ) |const| |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Projection<class_Projection>` | :ref:`get_projection_for_view<class_XRInterface_method_get_projection_for_view>`\ (\ view\: :ref:`int<class_int>`, aspect\: :ref:`float<class_float>`, near\: :ref:`float<class_float>`, far\: :ref:`float<class_float>`\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Vector2<class_Vector2>` | :ref:`get_render_target_size<class_XRInterface_method_get_render_target_size>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Array<class_Array>` | :ref:`get_supported_environment_blend_modes<class_XRInterface_method_get_supported_environment_blend_modes>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Dictionary<class_Dictionary>` | :ref:`get_system_info<class_XRInterface_method_get_system_info>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`TrackingStatus<enum_XRInterface_TrackingStatus>` | :ref:`get_tracking_status<class_XRInterface_method_get_tracking_status>`\ (\ ) |const| |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`Transform3D<class_Transform3D>` | :ref:`get_transform_for_view<class_XRInterface_method_get_transform_for_view>`\ (\ view\: :ref:`int<class_int>`, cam_transform\: :ref:`Transform3D<class_Transform3D>`\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`int<class_int>` | :ref:`get_view_count<class_XRInterface_method_get_view_count>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`initialize<class_XRInterface_method_initialize>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`is_initialized<class_XRInterface_method_is_initialized>`\ (\ ) |const| |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`is_passthrough_enabled<class_XRInterface_method_is_passthrough_enabled>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`is_passthrough_supported<class_XRInterface_method_is_passthrough_supported>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`set_environment_blend_mode<class_XRInterface_method_set_environment_blend_mode>`\ (\ mode\: :ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>`\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`set_play_area_mode<class_XRInterface_method_set_play_area_mode>`\ (\ mode\: :ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>`\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`start_passthrough<class_XRInterface_method_start_passthrough>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`stop_passthrough<class_XRInterface_method_stop_passthrough>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| :ref:`bool<class_bool>` | :ref:`supports_play_area_mode<class_XRInterface_method_supports_play_area_mode>`\ (\ mode\: :ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>`\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`trigger_haptic_pulse<class_XRInterface_method_trigger_haptic_pulse>`\ (\ action_name\: :ref:`String<class_String>`, tracker_name\: :ref:`StringName<class_StringName>`, frequency\: :ref:`float<class_float>`, amplitude\: :ref:`float<class_float>`, duration_sec\: :ref:`float<class_float>`, delay_sec\: :ref:`float<class_float>`\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| |void| | :ref:`uninitialize<class_XRInterface_method_uninitialize>`\ (\ ) |
+--------------------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
.. rst-class:: classref-section-separator
----
.. rst-class:: classref-descriptions-group
訊號
----
.. _class_XRInterface_signal_play_area_changed:
.. rst-class:: classref-signal
**play_area_changed**\ (\ mode\: :ref:`int<class_int>`\ ) :ref:`🔗<class_XRInterface_signal_play_area_changed>`
當遊玩區域改變時發出。這可能是玩家重設邊界、進入新的遊玩區域、更改遊玩區域模式、重設其頭戴式裝置方向，或者世界比例改變的結果。
.. rst-class:: classref-section-separator
----
.. rst-class:: classref-descriptions-group
列舉
----
.. _enum_XRInterface_Capabilities:
.. rst-class:: classref-enumeration
enum **Capabilities**: :ref:`🔗<enum_XRInterface_Capabilities>`
.. _class_XRInterface_constant_XR_NONE:
.. rst-class:: classref-enumeration-constant
:ref:`Capabilities<enum_XRInterface_Capabilities>` **XR_NONE** = ``0``
沒有 XR 功能。
.. _class_XRInterface_constant_XR_MONO:
.. rst-class:: classref-enumeration-constant
:ref:`Capabilities<enum_XRInterface_Capabilities>` **XR_MONO** = ``1``
此介面可以與正常的算繪輸出一起工作（非基於 HMD 的 AR）。
.. _class_XRInterface_constant_XR_STEREO:
.. rst-class:: classref-enumeration-constant
:ref:`Capabilities<enum_XRInterface_Capabilities>` **XR_STEREO** = ``2``
該介面支援立體算繪。
.. _class_XRInterface_constant_XR_QUAD:
.. rst-class:: classref-enumeration-constant
:ref:`Capabilities<enum_XRInterface_Capabilities>` **XR_QUAD** = ``4``
該介面支援四邊形算繪（Godot 尚不支援）。
.. _class_XRInterface_constant_XR_VR:
.. rst-class:: classref-enumeration-constant
:ref:`Capabilities<enum_XRInterface_Capabilities>` **XR_VR** = ``8``
該介面支援 VR。
.. _class_XRInterface_constant_XR_AR:
.. rst-class:: classref-enumeration-constant
:ref:`Capabilities<enum_XRInterface_Capabilities>` **XR_AR** = ``16``
該介面支援 AR（影片背景和真實世界追蹤）。
.. _class_XRInterface_constant_XR_EXTERNAL:
.. rst-class:: classref-enumeration-constant
:ref:`Capabilities<enum_XRInterface_Capabilities>` **XR_EXTERNAL** = ``32``
該介面輸出至外部裝置。如果使用的是主視口，則螢幕上的輸出是未經修改的左眼或右眼緩衝區（如果視口大小未更改至與 :ref:`get_render_target_size()<class_XRInterface_method_get_render_target_size>` 相同的縱橫比，則會進行拉伸）。使用單獨的視口節點能夠將主視口讓出來做別的事情。
.. rst-class:: classref-item-separator
----
.. _enum_XRInterface_TrackingStatus:
.. rst-class:: classref-enumeration
enum **TrackingStatus**: :ref:`🔗<enum_XRInterface_TrackingStatus>`
.. _class_XRInterface_constant_XR_NORMAL_TRACKING:
.. rst-class:: classref-enumeration-constant
:ref:`TrackingStatus<enum_XRInterface_TrackingStatus>` **XR_NORMAL_TRACKING** = ``0``
追蹤行為符合預期。
.. _class_XRInterface_constant_XR_EXCESSIVE_MOTION:
.. rst-class:: classref-enumeration-constant
:ref:`TrackingStatus<enum_XRInterface_TrackingStatus>` **XR_EXCESSIVE_MOTION** = ``1``
過度運動會阻礙追蹤（玩家的移動速度大於追蹤的速度）。
.. _class_XRInterface_constant_XR_INSUFFICIENT_FEATURES:
.. rst-class:: classref-enumeration-constant
:ref:`TrackingStatus<enum_XRInterface_TrackingStatus>` **XR_INSUFFICIENT_FEATURES** = ``2``
追蹤受到功能不足的阻礙，太暗（對於基於相機的追蹤），玩家被阻礙等。
.. _class_XRInterface_constant_XR_UNKNOWN_TRACKING:
.. rst-class:: classref-enumeration-constant
:ref:`TrackingStatus<enum_XRInterface_TrackingStatus>` **XR_UNKNOWN_TRACKING** = ``3``
我們不知道追蹤的狀態，或者這個介面未提供回饋。
.. _class_XRInterface_constant_XR_NOT_TRACKING:
.. rst-class:: classref-enumeration-constant
:ref:`TrackingStatus<enum_XRInterface_TrackingStatus>` **XR_NOT_TRACKING** = ``4``
追蹤功能失效（相機未插電或被遮擋、燈塔關閉，等等）。
.. rst-class:: classref-item-separator
----
.. _enum_XRInterface_PlayAreaMode:
.. rst-class:: classref-enumeration
enum **PlayAreaMode**: :ref:`🔗<enum_XRInterface_PlayAreaMode>`
.. _class_XRInterface_constant_XR_PLAY_AREA_UNKNOWN:
.. rst-class:: classref-enumeration-constant
:ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` **XR_PLAY_AREA_UNKNOWN** = ``0``
遊玩區域模式未設定或不可用。
.. _class_XRInterface_constant_XR_PLAY_AREA_3DOF:
.. rst-class:: classref-enumeration-constant
:ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` **XR_PLAY_AREA_3DOF** = ``1``
遊玩區域僅支援方向追蹤，不支援位置追蹤，區域以玩家為中心。
.. _class_XRInterface_constant_XR_PLAY_AREA_SITTING:
.. rst-class:: classref-enumeration-constant
:ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` **XR_PLAY_AREA_SITTING** = ``2``
玩家處於坐姿，提供有限的位置追蹤，玩家周圍有固定的防護。
.. _class_XRInterface_constant_XR_PLAY_AREA_ROOMSCALE:
.. rst-class:: classref-enumeration-constant
:ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` **XR_PLAY_AREA_ROOMSCALE** = ``3``
玩家可以自由移動，提供完整的位置追蹤。
.. _class_XRInterface_constant_XR_PLAY_AREA_STAGE:
.. rst-class:: classref-enumeration-constant
:ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` **XR_PLAY_AREA_STAGE** = ``4``
Same as :ref:`XR_PLAY_AREA_ROOMSCALE<class_XRInterface_constant_XR_PLAY_AREA_ROOMSCALE>` but origin point is fixed to the center of the physical space. In this mode, system-level recentering may be disabled, requiring the use of :ref:`XRServer.center_on_hmd()<class_XRServer_method_center_on_hmd>`.
.. _class_XRInterface_constant_XR_PLAY_AREA_CUSTOM:
.. rst-class:: classref-enumeration-constant
:ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` **XR_PLAY_AREA_CUSTOM** = ``2147483647``
Custom play area set by a GDExtension.
.. rst-class:: classref-item-separator
----
.. _enum_XRInterface_EnvironmentBlendMode:
.. rst-class:: classref-enumeration
enum **EnvironmentBlendMode**: :ref:`🔗<enum_XRInterface_EnvironmentBlendMode>`
.. _class_XRInterface_constant_XR_ENV_BLEND_MODE_OPAQUE:
.. rst-class:: classref-enumeration-constant
:ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>` **XR_ENV_BLEND_MODE_OPAQUE** = ``0``
不透明混合模式。通常用於 VR 裝置。
.. _class_XRInterface_constant_XR_ENV_BLEND_MODE_ADDITIVE:
.. rst-class:: classref-enumeration-constant
:ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>` **XR_ENV_BLEND_MODE_ADDITIVE** = ``1``
加法混合模式。通常用於帶有穿透功能的 AR 或 VR 裝置。
.. _class_XRInterface_constant_XR_ENV_BLEND_MODE_ALPHA_BLEND:
.. rst-class:: classref-enumeration-constant
:ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>` **XR_ENV_BLEND_MODE_ALPHA_BLEND** = ``2``
Alpha 混合模式。通常用於帶有穿透功能的 AR 或 VR 裝置。Alpha 通道控制穿透的可見程度。Alpha 為 0.0 表示穿透可見、該圖元處於加法模式。Alpha 為 1.0 表示穿透不可見，該圖元處於不透明模式。
.. rst-class:: classref-item-separator
----
.. _enum_XRInterface_VRSTextureFormat:
.. rst-class:: classref-enumeration
enum **VRSTextureFormat**: :ref:`🔗<enum_XRInterface_VRSTextureFormat>`
.. _class_XRInterface_constant_XR_VRS_TEXTURE_FORMAT_UNIFIED:
.. rst-class:: classref-enumeration-constant
:ref:`VRSTextureFormat<enum_XRInterface_VRSTextureFormat>` **XR_VRS_TEXTURE_FORMAT_UNIFIED** = ``0``
The texture format is the same as returned by :ref:`XRVRS.make_vrs_texture()<class_XRVRS_method_make_vrs_texture>`.
.. _class_XRInterface_constant_XR_VRS_TEXTURE_FORMAT_FRAGMENT_SHADING_RATE:
.. rst-class:: classref-enumeration-constant
:ref:`VRSTextureFormat<enum_XRInterface_VRSTextureFormat>` **XR_VRS_TEXTURE_FORMAT_FRAGMENT_SHADING_RATE** = ``1``
The texture format is the same as expected by the Vulkan ``VK_KHR_fragment_shading_rate`` extension.
.. _class_XRInterface_constant_XR_VRS_TEXTURE_FORMAT_FRAGMENT_DENSITY_MAP:
.. rst-class:: classref-enumeration-constant
:ref:`VRSTextureFormat<enum_XRInterface_VRSTextureFormat>` **XR_VRS_TEXTURE_FORMAT_FRAGMENT_DENSITY_MAP** = ``2``
The texture format is the same as expected by the Vulkan ``VK_EXT_fragment_density_map`` extension.
.. rst-class:: classref-section-separator
----
.. rst-class:: classref-descriptions-group
屬性說明
--------
.. _class_XRInterface_property_ar_is_anchor_detection_enabled:
.. rst-class:: classref-property
:ref:`bool<class_bool>` **ar_is_anchor_detection_enabled** = ``false`` :ref:`🔗<class_XRInterface_property_ar_is_anchor_detection_enabled>`
.. rst-class:: classref-property-setget
- |void| **set_anchor_detection_is_enabled**\ (\ value\: :ref:`bool<class_bool>`\ )
- :ref:`bool<class_bool>` **get_anchor_detection_is_enabled**\ (\ )
在 AR 介面上，如果啟用錨點偵測，則為 ``true``\ 。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_property_environment_blend_mode:
.. rst-class:: classref-property
:ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>` **environment_blend_mode** = ``0`` :ref:`🔗<class_XRInterface_property_environment_blend_mode>`
.. rst-class:: classref-property-setget
- :ref:`bool<class_bool>` **set_environment_blend_mode**\ (\ mode\: :ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>`\ )
- :ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>` **get_environment_blend_mode**\ (\ )
指定 XR 應如何融入環境。這特定於某些 AR 和直通裝置，其中相機影像由 XR 合成器混合。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_property_interface_is_primary:
.. rst-class:: classref-property
:ref:`bool<class_bool>` **interface_is_primary** = ``false`` :ref:`🔗<class_XRInterface_property_interface_is_primary>`
.. rst-class:: classref-property-setget
- |void| **set_primary**\ (\ value\: :ref:`bool<class_bool>`\ )
- :ref:`bool<class_bool>` **is_primary**\ (\ )
``true`` 如果這是個主介面。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_property_xr_play_area_mode:
.. rst-class:: classref-property
:ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` **xr_play_area_mode** = ``0`` :ref:`🔗<class_XRInterface_property_xr_play_area_mode>`
.. rst-class:: classref-property-setget
- :ref:`bool<class_bool>` **set_play_area_mode**\ (\ mode\: :ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>`\ )
- :ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>` **get_play_area_mode**\ (\ )
該介面的遊玩區域模式。
.. rst-class:: classref-section-separator
----
.. rst-class:: classref-descriptions-group
方法說明
--------
.. _class_XRInterface_method_get_camera_feed_id:
.. rst-class:: classref-method
:ref:`int<class_int>` **get_camera_feed_id**\ (\ ) :ref:`🔗<class_XRInterface_method_get_camera_feed_id>`
如果這是一個需要顯示相機畫面作為背景的 AR 介面，此方法返回該介面的 :ref:`CameraServer<class_CameraServer>` 中的畫面 ID。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_capabilities:
.. rst-class:: classref-method
:ref:`int<class_int>` **get_capabilities**\ (\ ) |const| :ref:`🔗<class_XRInterface_method_get_capabilities>`
返回 :ref:`Capabilities<enum_XRInterface_Capabilities>` 標籤的組合，提供關於這個介面功能的資訊。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_name:
.. rst-class:: classref-method
:ref:`StringName<class_StringName>` **get_name**\ (\ ) |const| :ref:`🔗<class_XRInterface_method_get_name>`
Returns the name of this interface (``"OpenXR"``, ``"OpenVR"``, ``"OpenHMD"``, ``"ARKit"``, etc.).
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_play_area:
.. rst-class:: classref-method
:ref:`PackedVector3Array<class_PackedVector3Array>` **get_play_area**\ (\ ) |const| :ref:`🔗<class_XRInterface_method_get_play_area>`
Returns an array of vectors that represent the physical play area mapped to the virtual space around the :ref:`XROrigin3D<class_XROrigin3D>` point. The points form a convex polygon that can be used to react to or visualize the play area. This returns an empty array if this feature is not supported or if the information is not yet available.
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_projection_for_view:
.. rst-class:: classref-method
:ref:`Projection<class_Projection>` **get_projection_for_view**\ (\ view\: :ref:`int<class_int>`, aspect\: :ref:`float<class_float>`, near\: :ref:`float<class_float>`, far\: :ref:`float<class_float>`\ ) :ref:`🔗<class_XRInterface_method_get_projection_for_view>`
返回視圖/眼睛的投影矩陣。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_render_target_size:
.. rst-class:: classref-method
:ref:`Vector2<class_Vector2>` **get_render_target_size**\ (\ ) :ref:`🔗<class_XRInterface_method_get_render_target_size>`
返回在VR平臺套用鏡頭失真等內容之前算繪的中間結果的解析度。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_supported_environment_blend_modes:
.. rst-class:: classref-method
:ref:`Array<class_Array>` **get_supported_environment_blend_modes**\ (\ ) :ref:`🔗<class_XRInterface_method_get_supported_environment_blend_modes>`
返回支援的環境混合模式陣列，見 :ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>`\ 。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_system_info:
.. rst-class:: classref-method
:ref:`Dictionary<class_Dictionary>` **get_system_info**\ (\ ) :ref:`🔗<class_XRInterface_method_get_system_info>`
返回包含額外系統資訊的 :ref:`Dictionary<class_Dictionary>`\ 。介面應該返回 ``XRRuntimeName`` 和 ``XRRuntimeVersion``\ ，表示所使用的 XR 運作時資訊。還可以額外提供關於特定介面的條目。
\ **注意：**\ 這個資訊可能只在成功呼叫 :ref:`initialize()<class_XRInterface_method_initialize>` 後可用。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_tracking_status:
.. rst-class:: classref-method
:ref:`TrackingStatus<enum_XRInterface_TrackingStatus>` **get_tracking_status**\ (\ ) |const| :ref:`🔗<class_XRInterface_method_get_tracking_status>`
如果支援，返回我們的追蹤狀態。這將使你能夠向使用者回饋，是否存在位置追蹤的問題。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_transform_for_view:
.. rst-class:: classref-method
:ref:`Transform3D<class_Transform3D>` **get_transform_for_view**\ (\ view\: :ref:`int<class_int>`, cam_transform\: :ref:`Transform3D<class_Transform3D>`\ ) :ref:`🔗<class_XRInterface_method_get_transform_for_view>`
返回視圖/眼睛的變換。
\ ``view`` 是視圖/眼睛的索引。
\ ``cam_transform`` 是將裝置座標對應至場景座標的變換，通常是目前 XROrigin3D 的 :ref:`Node3D.global_transform<class_Node3D_property_global_transform>`\ 。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_get_view_count:
.. rst-class:: classref-method
:ref:`int<class_int>` **get_view_count**\ (\ ) :ref:`🔗<class_XRInterface_method_get_view_count>`
返回該裝置算繪所需的視圖數量。1 代表單目平面視圖，2 代表雙目立體視圖。
.. rst-class:: classref-item-separator
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.. _class_XRInterface_method_initialize:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **initialize**\ (\ ) :ref:`🔗<class_XRInterface_method_initialize>`
呼叫它來初始化這個介面。被初始化的第一個介面被識別為主介面，它將用於算繪輸出。
初始化想要使用的介面後，需要啟用視口的 AR/VR 模式，並且算繪應該開始。
\ **注意：**\ 對於任何使用 Godot 主輸出的裝置，例如移動 VR，必須在主視口上啟用 XR 模式。
如果為處理自己輸出的平臺（例如 OpenVR）執行該操作，則 Godot 將只顯示一隻眼睛而不會在螢幕上失真。或者，可以將單獨的視口節點新增到場景並在該視口上啟用 AR/VR。它將被用於輸出到 HMD，讓你可以在主視窗中自由地做任何你喜歡的事情，例如使用單獨的相機作為旁觀者相機或算繪完全不同的東西。
雖然目前未使用，但可以啟動其他介面。如果想追蹤來自其他平臺的控制器，可能會希望這樣做。但是，此時只有一個介面可以算繪到 HMD。
.. rst-class:: classref-item-separator
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.. _class_XRInterface_method_is_initialized:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **is_initialized**\ (\ ) |const| :ref:`🔗<class_XRInterface_method_is_initialized>`
如果這個介面已初始化，則返回 ``true``\ 。
.. rst-class:: classref-item-separator
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.. _class_XRInterface_method_is_passthrough_enabled:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **is_passthrough_enabled**\ (\ ) :ref:`🔗<class_XRInterface_method_is_passthrough_enabled>`
**已棄用：** Check if :ref:`environment_blend_mode<class_XRInterface_property_environment_blend_mode>` is :ref:`XR_ENV_BLEND_MODE_ALPHA_BLEND<class_XRInterface_constant_XR_ENV_BLEND_MODE_ALPHA_BLEND>`, instead.
Returns ``true`` if passthrough is enabled.
.. rst-class:: classref-item-separator
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.. _class_XRInterface_method_is_passthrough_supported:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **is_passthrough_supported**\ (\ ) :ref:`🔗<class_XRInterface_method_is_passthrough_supported>`
**已棄用：** Check that :ref:`XR_ENV_BLEND_MODE_ALPHA_BLEND<class_XRInterface_constant_XR_ENV_BLEND_MODE_ALPHA_BLEND>` is supported using :ref:`get_supported_environment_blend_modes()<class_XRInterface_method_get_supported_environment_blend_modes>`, instead.
Returns ``true`` if this interface supports passthrough.
.. rst-class:: classref-item-separator
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.. _class_XRInterface_method_set_environment_blend_mode:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **set_environment_blend_mode**\ (\ mode\: :ref:`EnvironmentBlendMode<enum_XRInterface_EnvironmentBlendMode>`\ ) :ref:`🔗<class_XRInterface_method_set_environment_blend_mode>`
Sets the active environment blend mode.
\ ``mode`` is the environment blend mode starting with the next frame.
\ **Note:** Not all runtimes support all environment blend modes, so it is important to check this at startup. For example:
::
func _ready():
var xr_interface = XRServer.find_interface("OpenXR")
if xr_interface and xr_interface.is_initialized():
var vp = get_viewport()
vp.use_xr = true
var acceptable_modes = [XRInterface.XR_ENV_BLEND_MODE_OPAQUE, XRInterface.XR_ENV_BLEND_MODE_ADDITIVE]
var modes = xr_interface.get_supported_environment_blend_modes()
for mode in acceptable_modes:
if mode in modes:
xr_interface.set_environment_blend_mode(mode)
break
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_set_play_area_mode:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **set_play_area_mode**\ (\ mode\: :ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>`\ ) :ref:`🔗<class_XRInterface_method_set_play_area_mode>`
Sets the active play area mode, will return ``false`` if the mode can't be used with this interface.
\ **Note:** Changing this after the interface has already been initialized can be jarring for the player, so it's recommended to recenter on the HMD with :ref:`XRServer.center_on_hmd()<class_XRServer_method_center_on_hmd>` (if switching to :ref:`XR_PLAY_AREA_STAGE<class_XRInterface_constant_XR_PLAY_AREA_STAGE>`) or make the switch during a scene change.
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_start_passthrough:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **start_passthrough**\ (\ ) :ref:`🔗<class_XRInterface_method_start_passthrough>`
**已棄用：** Set the :ref:`environment_blend_mode<class_XRInterface_property_environment_blend_mode>` to :ref:`XR_ENV_BLEND_MODE_ALPHA_BLEND<class_XRInterface_constant_XR_ENV_BLEND_MODE_ALPHA_BLEND>`, instead.
啟動穿透，如果無法啟動則會返回 ``false``\ 。
\ **注意：**\ XR 所使用的視口必須有透明背景，否則穿透可能無法正確算繪。
.. rst-class:: classref-item-separator
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.. _class_XRInterface_method_stop_passthrough:
.. rst-class:: classref-method
|void| **stop_passthrough**\ (\ ) :ref:`🔗<class_XRInterface_method_stop_passthrough>`
**已棄用：** Set the :ref:`environment_blend_mode<class_XRInterface_property_environment_blend_mode>` to :ref:`XR_ENV_BLEND_MODE_OPAQUE<class_XRInterface_constant_XR_ENV_BLEND_MODE_OPAQUE>`, instead.
停止穿透。
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_supports_play_area_mode:
.. rst-class:: classref-method
:ref:`bool<class_bool>` **supports_play_area_mode**\ (\ mode\: :ref:`PlayAreaMode<enum_XRInterface_PlayAreaMode>`\ ) :ref:`🔗<class_XRInterface_method_supports_play_area_mode>`
請呼叫這個方法來查詢此介面是否支援給定的遊玩區域模式。
.. rst-class:: classref-item-separator
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.. _class_XRInterface_method_trigger_haptic_pulse:
.. rst-class:: classref-method
|void| **trigger_haptic_pulse**\ (\ action_name\: :ref:`String<class_String>`, tracker_name\: :ref:`StringName<class_StringName>`, frequency\: :ref:`float<class_float>`, amplitude\: :ref:`float<class_float>`, duration_sec\: :ref:`float<class_float>`, delay_sec\: :ref:`float<class_float>`\ ) :ref:`🔗<class_XRInterface_method_trigger_haptic_pulse>`
Triggers a haptic pulse on a device associated with this interface.
\ ``action_name`` is the name of the action for this pulse.
\ ``tracker_name`` is optional and can be used to direct the pulse to a specific device provided that device is bound to this haptic.
\ ``frequency`` is the frequency of the pulse, set to ``0.0`` to have the system use a default frequency.
\ ``amplitude`` is the amplitude of the pulse between ``0.0`` and ``1.0``.
\ ``duration_sec`` is the duration of the pulse in seconds.
\ ``delay_sec`` is a delay in seconds before the pulse is given.
.. rst-class:: classref-item-separator
----
.. _class_XRInterface_method_uninitialize:
.. rst-class:: classref-method
|void| **uninitialize**\ (\ ) :ref:`🔗<class_XRInterface_method_uninitialize>`
關閉介面。
.. |virtual| replace:: :abbr:`virtual (本方法通常需要使用者覆寫才能生效。)`
.. |required| replace:: :abbr:`required (This method is required to be overridden when extending its base class.)`
.. |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。)`
.. |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。)`
.. |constructor| replace:: :abbr:`constructor (本方法用於建構一個型別。)`
.. |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。)`
.. |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。)`
.. |bitfield| replace:: :abbr:`BitField (此值是由下列旗標組成的位元遮罩整數。)`
.. |void| replace:: :abbr:`void (無回傳值。)`
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