Version: 2019.3
LanguageEnglish
  • C#

Texture2DArray

class in UnityEngine

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Inherits from:Texture

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Implemented in:UnityEngine.CoreModule

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Description

Class for handling 2D texture arrays.

Modern graphics APIs (e.g. D3D10 and later, OpenGL ES 3.0 and later, Metal etc.) support "texture arrays", which is an array of same size & format textures. From the shader side, they are treated as a single resource, and sampling them needs an extra coordinate that indicates which array element to sample from.

Typically texture arrays are useful as an alternative for texture atlases, or in other cases where objects use a set of same-sized textures (e.g. terrains).

Currently in Unity texture arrays do not have an import pipeline for them, and must be created from code, either at runtime or in editor scripts. Using Graphics.CopyTexture is useful for fast copying of pixel data from regular 2D textures into elements of a texture array. From editor scripts, a common way of creating serialized texture array is to create it, fill with data (either via Graphics.CopyTexture from regular 2D textures, or via SetPixels or SetPixels32) and save it as an asset via AssetDatabase.CreateAsset.

Note that not all platforms and GPUs support texture arrays; for example Direct3D9 and OpenGL ES 2.0 do not. Use SystemInfo.supports2DArrayTextures to check.

Static Properties

allSlicesRead Only. This property is used as a parameter in some overloads of the CommandBuffer.Blit, Graphics.Blit, CommandBuffer.SetRenderTarget, and Graphics.SetRenderTarget methods to indicate that all texture array slices are bound. The value of this property is -1.

Properties

depthNumber of elements in a texture array (Read Only).
formatTexture format (Read Only).
isReadableReturns true if this texture array is Read/Write Enabled; otherwise returns false. For dynamic textures created from script, always returns true.

Constructors

Texture2DArrayCreate a new texture array.

Public Methods

ApplyActually apply all previous SetPixels changes.
GetPixelsReturns pixel colors of a single array slice.
GetPixels32Returns pixel colors of a single array slice.
SetPixelDataSet pixel values from raw preformatted data.
SetPixelsSet pixel colors for the whole mip level.
SetPixels32Set pixel colors for the whole mip level.

Inherited Members

Static Properties

allowThreadedTextureCreationAllow texture creation to occur on any thread (rather than the dedicated render thread).
currentTextureMemoryThe amount of memory currently being used by textures.
desiredTextureMemoryThis amount of texture memory would be used before the texture streaming budget is applied.
GenerateAllMipsCan be used with texture constructors that take a mip count to indicate that all mips should be generated. The value of this field is -1.
nonStreamingTextureCountNumber of non-streaming textures.
nonStreamingTextureMemoryTotal amount of memory being used by non-streaming textures.
streamingMipmapUploadCountHow many times has a texture been uploaded due to texture mipmap streaming.
streamingRendererCountNumber of renderers registered with the texture streaming system.
streamingTextureCountNumber of streaming textures.
streamingTextureDiscardUnusedMipsForce the streaming texture system to discard all unused mipmaps immediately, rather than caching them until the texture memory budget is exceeded.
streamingTextureForceLoadAllForce streaming textures to load all mipmap levels.
streamingTextureLoadingCountNumber of streaming textures with mipmaps currently loading.
streamingTexturePendingLoadCountNumber of streaming textures with outstanding mipmaps to be loaded.
targetTextureMemoryThe amount of memory used by textures after the mipmap streaming and budget are applied and loading is complete.
totalTextureMemoryThe total amount of memory that would be used by all textures at mipmap level 0.

Properties

hideFlagsShould the object be hidden, saved with the Scene or modifiable by the user?
nameThe name of the object.
anisoLevelAnisotropic filtering level of the texture.
dimensionDimensionality (type) of the texture (Read Only).
filterModeFiltering mode of the texture.
graphicsFormatReturns the GraphicsFormat format or color format of a texture object.
heightHeight of the texture in pixels. (Read Only)
imageContentsHashThe hash value of the Texture.
isReadableReturns true if the Read/Write Enabled checkbox was checked when the texture was imported; otherwise returns false. For a dynamic Texture created from script, always returns true. For additional information, see TextureImporter.isReadable.
mipMapBiasMip map bias of the texture.
mipmapCountHow many mipmap levels are in this texture (Read Only).
updateCountThis counter is incremented when the texture is updated.
widthWidth of the texture in pixels. (Read Only)
wrapModeTexture coordinate wrapping mode.
wrapModeUTexture U coordinate wrapping mode.
wrapModeVTexture V coordinate wrapping mode.
wrapModeWTexture W coordinate wrapping mode for Texture3D.

Public Methods

GetInstanceIDReturns the instance id of the object.
ToStringReturns the name of the object.
GetNativeTexturePtrRetrieve a native (underlying graphics API) pointer to the texture resource.
IncrementUpdateCountIncrement the update counter.

Static Methods

DestroyRemoves a GameObject, component or asset.
DestroyImmediateDestroys the object obj immediately. You are strongly recommended to use Destroy instead.
DontDestroyOnLoadDo not destroy the target Object when loading a new Scene.
FindObjectOfTypeReturns the first active loaded object of Type type.
FindObjectsOfTypeReturns a list of all active loaded objects of Type type.
InstantiateClones the object original and returns the clone.
SetGlobalAnisotropicFilteringLimitsSets Anisotropic limits.
SetStreamingTextureMaterialDebugPropertiesUploads additional debug information to materials using textures set to stream mip maps.

Operators

boolDoes the object exist?
operator !=Compares if two objects refer to a different object.
operator ==Compares two object references to see if they refer to the same object.

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