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297 lines
17 KiB
ReStructuredText
297 lines
17 KiB
ReStructuredText
:github_url: hide
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.. _class_PortableCompressedTexture2D:
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PortableCompressedTexture2D
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===========================
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**Eredita:** :ref:`Texture2D<class_Texture2D>` **<** :ref:`Texture<class_Texture>` **<** :ref:`Resource<class_Resource>` **<** :ref:`RefCounted<class_RefCounted>` **<** :ref:`Object<class_Object>`
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Fornisce una texture compressa per disco e/o VRAM in modo che sia portabile.
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.. rst-class:: classref-introduction-group
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Descrizione
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----------------------
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Questa classe consente di memorizzare texture compresse come risorse autonome (non importate).
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Per l'utilizzo 2D (compresse su disco, non compresse in VRAM), sono consigliate le modalità lossy e lossless. Per l'utilizzo 3D (compresse in VRAM), dipende dalla piattaforma di destinazione.
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Se intendi usare solo desktop, sono consigliati S3TC o BPTC. Per i dispositivi mobili, è consigliato ETC2.
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Per texture 3D portatili e autonome che funzionano sia su desktop sia su dispositivi mobili, è consigliato Basis Universal (nonostante abbia un piccolo costo di qualità e un tempo di compressione più lungo come compromesso).
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Questa risorsa è pensata per essere creata da codice.
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.. rst-class:: classref-reftable-group
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Proprietà
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------------------
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.. table::
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:widths: auto
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+-------------------------------+--------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`keep_compressed_buffer<class_PortableCompressedTexture2D_property_keep_compressed_buffer>` | ``false`` |
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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:`Vector2<class_Vector2>` | :ref:`size_override<class_PortableCompressedTexture2D_property_size_override>` | ``Vector2(0, 0)`` |
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+-------------------------------+--------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------+
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.. rst-class:: classref-reftable-group
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Metodi
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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:`create_from_image<class_PortableCompressedTexture2D_method_create_from_image>`\ (\ image\: :ref:`Image<class_Image>`, compression_mode\: :ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>`, normal_map\: :ref:`bool<class_bool>` = false, lossy_quality\: :ref:`float<class_float>` = 0.8\ ) |
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+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` | :ref:`get_compression_mode<class_PortableCompressedTexture2D_method_get_compression_mode>`\ (\ ) |const| |
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+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`Format<enum_Image_Format>` | :ref:`get_format<class_PortableCompressedTexture2D_method_get_format>`\ (\ ) |const| |
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+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| :ref:`bool<class_bool>` | :ref:`is_keeping_all_compressed_buffers<class_PortableCompressedTexture2D_method_is_keeping_all_compressed_buffers>`\ (\ ) |static| |
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+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_basisu_compressor_params<class_PortableCompressedTexture2D_method_set_basisu_compressor_params>`\ (\ uastc_level\: :ref:`int<class_int>`, rdo_quality_loss\: :ref:`float<class_float>`\ ) |
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+--------------------------------------------------------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
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| |void| | :ref:`set_keep_all_compressed_buffers<class_PortableCompressedTexture2D_method_set_keep_all_compressed_buffers>`\ (\ keep\: :ref:`bool<class_bool>`\ ) |static| |
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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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Enumerazioni
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------------------------
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.. _enum_PortableCompressedTexture2D_CompressionMode:
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.. rst-class:: classref-enumeration
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enum **CompressionMode**: :ref:`🔗<enum_PortableCompressedTexture2D_CompressionMode>`
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.. _class_PortableCompressedTexture2D_constant_COMPRESSION_MODE_LOSSLESS:
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.. rst-class:: classref-enumeration-constant
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:ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` **COMPRESSION_MODE_LOSSLESS** = ``0``
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.. container:: contribute
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There is currently no description for this enum. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. _class_PortableCompressedTexture2D_constant_COMPRESSION_MODE_LOSSY:
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.. rst-class:: classref-enumeration-constant
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:ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` **COMPRESSION_MODE_LOSSY** = ``1``
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.. container:: contribute
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There is currently no description for this enum. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. _class_PortableCompressedTexture2D_constant_COMPRESSION_MODE_BASIS_UNIVERSAL:
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.. rst-class:: classref-enumeration-constant
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:ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` **COMPRESSION_MODE_BASIS_UNIVERSAL** = ``2``
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.. container:: contribute
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There is currently no description for this enum. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. _class_PortableCompressedTexture2D_constant_COMPRESSION_MODE_S3TC:
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.. rst-class:: classref-enumeration-constant
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:ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` **COMPRESSION_MODE_S3TC** = ``3``
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.. container:: contribute
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There is currently no description for this enum. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. _class_PortableCompressedTexture2D_constant_COMPRESSION_MODE_ETC2:
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.. rst-class:: classref-enumeration-constant
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:ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` **COMPRESSION_MODE_ETC2** = ``4``
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.. container:: contribute
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There is currently no description for this enum. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. _class_PortableCompressedTexture2D_constant_COMPRESSION_MODE_BPTC:
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.. rst-class:: classref-enumeration-constant
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:ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` **COMPRESSION_MODE_BPTC** = ``5``
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.. container:: contribute
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There is currently no description for this enum. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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.. _class_PortableCompressedTexture2D_constant_COMPRESSION_MODE_ASTC:
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.. rst-class:: classref-enumeration-constant
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:ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` **COMPRESSION_MODE_ASTC** = ``6``
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.. container:: contribute
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There is currently no description for this enum. Please help us by `contributing one <https://contributing.godotengine.org/en/latest/documentation/class_reference.html>`__!
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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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Descrizioni delle proprietà
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------------------------------------------------------
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.. _class_PortableCompressedTexture2D_property_keep_compressed_buffer:
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.. rst-class:: classref-property
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:ref:`bool<class_bool>` **keep_compressed_buffer** = ``false`` :ref:`🔗<class_PortableCompressedTexture2D_property_keep_compressed_buffer>`
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.. rst-class:: classref-property-setget
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- |void| **set_keep_compressed_buffer**\ (\ value\: :ref:`bool<class_bool>`\ )
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- :ref:`bool<class_bool>` **is_keeping_compressed_buffer**\ (\ )
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If ``true``, when running in the editor, this texture will keep the source-compressed data in memory, allowing the data to persist after loading. Otherwise, the source-compressed data is lost after loading and the texture can't be re-saved.
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\ **Note:** This property must be set before :ref:`create_from_image()<class_PortableCompressedTexture2D_method_create_from_image>` for this to work.
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.. rst-class:: classref-item-separator
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----
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.. _class_PortableCompressedTexture2D_property_size_override:
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.. rst-class:: classref-property
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:ref:`Vector2<class_Vector2>` **size_override** = ``Vector2(0, 0)`` :ref:`🔗<class_PortableCompressedTexture2D_property_size_override>`
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.. rst-class:: classref-property-setget
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- |void| **set_size_override**\ (\ value\: :ref:`Vector2<class_Vector2>`\ )
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- :ref:`Vector2<class_Vector2>` **get_size_override**\ (\ )
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Allows overriding the texture's size (for 2D only).
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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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Descrizioni dei metodi
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--------------------------------------------
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.. _class_PortableCompressedTexture2D_method_create_from_image:
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.. rst-class:: classref-method
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|void| **create_from_image**\ (\ image\: :ref:`Image<class_Image>`, compression_mode\: :ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>`, normal_map\: :ref:`bool<class_bool>` = false, lossy_quality\: :ref:`float<class_float>` = 0.8\ ) :ref:`🔗<class_PortableCompressedTexture2D_method_create_from_image>`
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Inizializza la texture compressa da un'immagine di base. Deve essere specificata la modalità di compressione.
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\ ``normal_map`` è consigliato per garantire una qualità ottimale se questa immagine sarà utilizzata come mappa normale.
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Se è richiesta una compressione con perdita di dati, è possibile fornire facoltativamente l'impostazione della qualità. Questo mappa la qualità di compressione Lossy WebP.
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.. rst-class:: classref-item-separator
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----
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.. _class_PortableCompressedTexture2D_method_get_compression_mode:
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.. rst-class:: classref-method
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:ref:`CompressionMode<enum_PortableCompressedTexture2D_CompressionMode>` **get_compression_mode**\ (\ ) |const| :ref:`🔗<class_PortableCompressedTexture2D_method_get_compression_mode>`
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Restituisce la modalità di compressione utilizzata (valida dopo l'inizializzazione).
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.. rst-class:: classref-item-separator
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----
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.. _class_PortableCompressedTexture2D_method_get_format:
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.. rst-class:: classref-method
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:ref:`Format<enum_Image_Format>` **get_format**\ (\ ) |const| :ref:`🔗<class_PortableCompressedTexture2D_method_get_format>`
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Restituisce il formato immagine utilizzato (valido dopo l'inizializzazione).
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.. rst-class:: classref-item-separator
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----
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.. _class_PortableCompressedTexture2D_method_is_keeping_all_compressed_buffers:
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.. rst-class:: classref-method
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:ref:`bool<class_bool>` **is_keeping_all_compressed_buffers**\ (\ ) |static| :ref:`🔗<class_PortableCompressedTexture2D_method_is_keeping_all_compressed_buffers>`
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Returns ``true`` if the flag is overridden for all textures of this type.
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.. rst-class:: classref-item-separator
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----
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.. _class_PortableCompressedTexture2D_method_set_basisu_compressor_params:
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.. rst-class:: classref-method
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|void| **set_basisu_compressor_params**\ (\ uastc_level\: :ref:`int<class_int>`, rdo_quality_loss\: :ref:`float<class_float>`\ ) :ref:`🔗<class_PortableCompressedTexture2D_method_set_basisu_compressor_params>`
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Sets the compressor parameters for Basis Universal compression. See also the settings in :ref:`ResourceImporterTexture<class_ResourceImporterTexture>`.
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\ **Note:** This method must be called before :ref:`create_from_image()<class_PortableCompressedTexture2D_method_create_from_image>` for this to work.
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.. rst-class:: classref-item-separator
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----
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.. _class_PortableCompressedTexture2D_method_set_keep_all_compressed_buffers:
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.. rst-class:: classref-method
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|void| **set_keep_all_compressed_buffers**\ (\ keep\: :ref:`bool<class_bool>`\ ) |static| :ref:`🔗<class_PortableCompressedTexture2D_method_set_keep_all_compressed_buffers>`
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If ``keep`` is ``true``, overrides the flag globally for all textures of this type. This is used primarily by the editor.
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.. |virtual| replace:: :abbr:`virtual (Questo metodo dovrebbe solitamente essere sovrascritto dall'utente per aver un effetto.)`
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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 (Questo metodo non ha effetti collaterali. Non modifica alcuna variabile appartenente all'istanza.)`
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.. |vararg| replace:: :abbr:`vararg (Questo metodo accetta qualsiasi numero di argomenti oltre a quelli descritti qui.)`
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.. |constructor| replace:: :abbr:`constructor (Questo metodo è utilizzato per creare un tipo.)`
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.. |static| replace:: :abbr:`static (Questo metodo non necessita di alcun'istanza per essere chiamato, quindi può essere chiamato direttamente usando il nome della classe.)`
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.. |operator| replace:: :abbr:`operator (Questo metodo descrive un operatore valido da usare con questo tipo come operando di sinistra.)`
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.. |bitfield| replace:: :abbr:`BitField (Questo valore è un intero composto da una maschera di bit dei seguenti flag.)`
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.. |void| replace:: :abbr:`void (Nessun valore restituito.)`
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