mirror of
https://github.com/godotengine/godot-docs-l10n.git
synced 2025-12-31 09:49:22 +03:00
225 lines
10 KiB
ReStructuredText
225 lines
10 KiB
ReStructuredText
:github_url: hide
|
|
|
|
.. _class_GLTFBufferView:
|
|
|
|
GLTFBufferView
|
|
==============
|
|
|
|
**繼承：** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
|
|
|
|
Represents a glTF buffer view.
|
|
|
|
.. rst-class:: classref-introduction-group
|
|
|
|
說明
|
|
----
|
|
|
|
GLTFBufferView is a data structure representing a glTF ``bufferView`` that would be found in the ``"bufferViews"`` array. A buffer is a blob of binary data. A buffer view is a slice of a buffer that can be used to identify and extract data from the buffer.
|
|
|
|
Most custom uses of buffers only need to use the :ref:`buffer<class_GLTFBufferView_property_buffer>`, :ref:`byte_length<class_GLTFBufferView_property_byte_length>`, and :ref:`byte_offset<class_GLTFBufferView_property_byte_offset>`. The :ref:`byte_stride<class_GLTFBufferView_property_byte_stride>` and :ref:`indices<class_GLTFBufferView_property_indices>` properties are for more advanced use cases such as interleaved mesh data encoded for the GPU.
|
|
|
|
.. rst-class:: classref-introduction-group
|
|
|
|
教學
|
|
----
|
|
|
|
- `Buffers, BufferViews, and Accessors in Khronos glTF specification <https://github.com/KhronosGroup/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_005_BuffersBufferViewsAccessors.md>`__
|
|
|
|
- :doc:`執行時檔案載入與儲存 <../tutorials/io/runtime_file_loading_and_saving>`
|
|
|
|
.. rst-class:: classref-reftable-group
|
|
|
|
屬性
|
|
----
|
|
|
|
.. table::
|
|
:widths: auto
|
|
|
|
+-------------------------+---------------------------------------------------------------------------+-----------+
|
|
| :ref:`int<class_int>` | :ref:`buffer<class_GLTFBufferView_property_buffer>` | ``-1`` |
|
|
+-------------------------+---------------------------------------------------------------------------+-----------+
|
|
| :ref:`int<class_int>` | :ref:`byte_length<class_GLTFBufferView_property_byte_length>` | ``0`` |
|
|
+-------------------------+---------------------------------------------------------------------------+-----------+
|
|
| :ref:`int<class_int>` | :ref:`byte_offset<class_GLTFBufferView_property_byte_offset>` | ``0`` |
|
|
+-------------------------+---------------------------------------------------------------------------+-----------+
|
|
| :ref:`int<class_int>` | :ref:`byte_stride<class_GLTFBufferView_property_byte_stride>` | ``-1`` |
|
|
+-------------------------+---------------------------------------------------------------------------+-----------+
|
|
| :ref:`bool<class_bool>` | :ref:`indices<class_GLTFBufferView_property_indices>` | ``false`` |
|
|
+-------------------------+---------------------------------------------------------------------------+-----------+
|
|
| :ref:`bool<class_bool>` | :ref:`vertex_attributes<class_GLTFBufferView_property_vertex_attributes>` | ``false`` |
|
|
+-------------------------+---------------------------------------------------------------------------+-----------+
|
|
|
|
.. rst-class:: classref-reftable-group
|
|
|
|
方法
|
|
----
|
|
|
|
.. table::
|
|
:widths: auto
|
|
|
|
+-----------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| :ref:`GLTFBufferView<class_GLTFBufferView>` | :ref:`from_dictionary<class_GLTFBufferView_method_from_dictionary>`\ (\ dictionary\: :ref:`Dictionary<class_Dictionary>`\ ) |static| |
|
|
+-----------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| :ref:`PackedByteArray<class_PackedByteArray>` | :ref:`load_buffer_view_data<class_GLTFBufferView_method_load_buffer_view_data>`\ (\ state\: :ref:`GLTFState<class_GLTFState>`\ ) |const| |
|
|
+-----------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------+
|
|
| :ref:`Dictionary<class_Dictionary>` | :ref:`to_dictionary<class_GLTFBufferView_method_to_dictionary>`\ (\ ) |const| |
|
|
+-----------------------------------------------+------------------------------------------------------------------------------------------------------------------------------------------+
|
|
|
|
.. rst-class:: classref-section-separator
|
|
|
|
----
|
|
|
|
.. rst-class:: classref-descriptions-group
|
|
|
|
屬性說明
|
|
--------
|
|
|
|
.. _class_GLTFBufferView_property_buffer:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`int<class_int>` **buffer** = ``-1`` :ref:`🔗<class_GLTFBufferView_property_buffer>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_buffer**\ (\ value\: :ref:`int<class_int>`\ )
|
|
- :ref:`int<class_int>` **get_buffer**\ (\ )
|
|
|
|
The index of the buffer this buffer view is referencing. If ``-1``, this buffer view is not referencing any buffer.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_GLTFBufferView_property_byte_length:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`int<class_int>` **byte_length** = ``0`` :ref:`🔗<class_GLTFBufferView_property_byte_length>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_byte_length**\ (\ value\: :ref:`int<class_int>`\ )
|
|
- :ref:`int<class_int>` **get_byte_length**\ (\ )
|
|
|
|
The length, in bytes, of this buffer view. If ``0``, this buffer view is empty.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_GLTFBufferView_property_byte_offset:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`int<class_int>` **byte_offset** = ``0`` :ref:`🔗<class_GLTFBufferView_property_byte_offset>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_byte_offset**\ (\ value\: :ref:`int<class_int>`\ )
|
|
- :ref:`int<class_int>` **get_byte_offset**\ (\ )
|
|
|
|
The offset, in bytes, from the start of the buffer to the start of this buffer view.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_GLTFBufferView_property_byte_stride:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`int<class_int>` **byte_stride** = ``-1`` :ref:`🔗<class_GLTFBufferView_property_byte_stride>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_byte_stride**\ (\ value\: :ref:`int<class_int>`\ )
|
|
- :ref:`int<class_int>` **get_byte_stride**\ (\ )
|
|
|
|
The stride, in bytes, between interleaved data. If ``-1``, this buffer view is not interleaved.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_GLTFBufferView_property_indices:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`bool<class_bool>` **indices** = ``false`` :ref:`🔗<class_GLTFBufferView_property_indices>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_indices**\ (\ value\: :ref:`bool<class_bool>`\ )
|
|
- :ref:`bool<class_bool>` **get_indices**\ (\ )
|
|
|
|
``true`` if the GLTFBufferView's OpenGL GPU buffer type is an ``ELEMENT_ARRAY_BUFFER`` used for vertex indices (integer constant ``34963``). ``false`` if the buffer type is any other value. See `Buffers, BufferViews, and Accessors <https://github.com/KhronosGroup/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_005_BuffersBufferViewsAccessors.md>`__ for possible values. This property is set on import and used on export.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_GLTFBufferView_property_vertex_attributes:
|
|
|
|
.. rst-class:: classref-property
|
|
|
|
:ref:`bool<class_bool>` **vertex_attributes** = ``false`` :ref:`🔗<class_GLTFBufferView_property_vertex_attributes>`
|
|
|
|
.. rst-class:: classref-property-setget
|
|
|
|
- |void| **set_vertex_attributes**\ (\ value\: :ref:`bool<class_bool>`\ )
|
|
- :ref:`bool<class_bool>` **get_vertex_attributes**\ (\ )
|
|
|
|
``true`` if the GLTFBufferView's OpenGL GPU buffer type is an ``ARRAY_BUFFER`` used for vertex attributes (integer constant ``34962``). ``false`` if the buffer type is any other value. See `Buffers, BufferViews, and Accessors <https://github.com/KhronosGroup/glTF-Tutorials/blob/master/gltfTutorial/gltfTutorial_005_BuffersBufferViewsAccessors.md>`__ for possible values. This property is set on import and used on export.
|
|
|
|
.. rst-class:: classref-section-separator
|
|
|
|
----
|
|
|
|
.. rst-class:: classref-descriptions-group
|
|
|
|
方法說明
|
|
--------
|
|
|
|
.. _class_GLTFBufferView_method_from_dictionary:
|
|
|
|
.. rst-class:: classref-method
|
|
|
|
:ref:`GLTFBufferView<class_GLTFBufferView>` **from_dictionary**\ (\ dictionary\: :ref:`Dictionary<class_Dictionary>`\ ) |static| :ref:`🔗<class_GLTFBufferView_method_from_dictionary>`
|
|
|
|
Creates a new GLTFBufferView instance by parsing the given :ref:`Dictionary<class_Dictionary>`.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_GLTFBufferView_method_load_buffer_view_data:
|
|
|
|
.. rst-class:: classref-method
|
|
|
|
:ref:`PackedByteArray<class_PackedByteArray>` **load_buffer_view_data**\ (\ state\: :ref:`GLTFState<class_GLTFState>`\ ) |const| :ref:`🔗<class_GLTFBufferView_method_load_buffer_view_data>`
|
|
|
|
Loads the buffer view data from the buffer referenced by this buffer view in the given :ref:`GLTFState<class_GLTFState>`. Interleaved data with a byte stride is not yet supported by this method. The data is returned as a :ref:`PackedByteArray<class_PackedByteArray>`.
|
|
|
|
.. rst-class:: classref-item-separator
|
|
|
|
----
|
|
|
|
.. _class_GLTFBufferView_method_to_dictionary:
|
|
|
|
.. rst-class:: classref-method
|
|
|
|
:ref:`Dictionary<class_Dictionary>` **to_dictionary**\ (\ ) |const| :ref:`🔗<class_GLTFBufferView_method_to_dictionary>`
|
|
|
|
Serializes this GLTFBufferView instance into a :ref:`Dictionary<class_Dictionary>`.
|
|
|
|
.. |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。)`
|