Version: Unity 6.1 Alpha (6000.1)
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 does not. Use SystemInfo.supports2DArrayTextures to check. Also, this class does not support Texture2DArray creation with a Crunch compression TextureFormat.

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

activeMipmapLimitThe number of high resolution mipmap levels from the texture that Unity doesn't upload to the GPU. (Read Only)
depthNumber of elements in a texture array (Read Only).
formatTexture format (Read Only).
ignoreMipmapLimitThis property causes a texture to ignore all texture mipmap limit settings.
mipmapLimitGroupThe name of the texture mipmap limit group that this texture is associated with. (Read Only)

Constructors

Texture2DArrayCreate a new texture array.

Public Methods

ApplyCopies changes you've made in a CPU texture to the GPU.
CopyPixelsCopies pixel data from another texture on the CPU.
GetPixelDataGets the raw data from a texture.
GetPixelsGets the pixel color data for a mipmap level of a slice as Color structs.
GetPixels32Gets the pixel color data for a mipmap level of a slice as Color32 structs.
SetPixelDataSets the raw data of an entire mipmap level directly in CPU memory.
SetPixelsSets the pixel colors of an entire mipmap level of a slice.
SetPixels32Sets the pixel colors of an entire mipmap level of a slice.

Inherited Members

Static Properties

allowThreadedTextureCreationAllow Unity internals to perform Texture creation on any thread (rather than the dedicated render thread).
currentTextureMemoryThe amount of memory that all Textures in the scene use.
desiredTextureMemoryThe total amount of texture memory, in bytes, that Unity would use if no constraints are 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.
nonStreamingTextureCountThe number of non-streaming Textures in the scene. This includes instances of Texture2D and CubeMap Textures. This does not include any other Texture types, or 2D and CubeMap Textures that Unity creates internally.
nonStreamingTextureMemoryThe amount of memory Unity allocates for non-streaming Textures in the scene. This only includes instances of Texture2D and CubeMap Textures. This does not include any other Texture types, or 2D and CubeMap Textures that Unity creates internally.
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.
streamingTextureDiscardUnusedMipsThis property forces the streaming Texture system to discard all unused mipmaps instead of caching them until the Texture memory budget is exceeded. This is useful when you profile or write tests to keep a predictable set of Textures in memory.
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.
targetTextureMemoryTotal texture memory usage in bytes after applying the memory budget and loading all textures.
totalTextureMemoryThe total texture memory, in bytes, that Unity would use if all textures are loaded at full resolution.

Properties

hideFlagsShould the object be hidden, saved with the Scene or modifiable by the user?
nameThe name of the object.
anisoLevelDefines the anisotropic 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.
graphicsTexture GraphicsTexture that represents the texture resource uploaded to the graphics device (read-only).
heightHeight of the Texture in pixels (Read Only).
imageContentsHashThe hash value of the Texture.
isDataSRGBReturns true if the texture pixel data is in sRGB color space (Read Only).
isReadableWhether Unity stores an additional copy of this texture's pixel data in CPU-addressable memory.
mipMapBiasThe mipmap 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

GetInstanceIDGets 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.
FindAnyObjectByTypeRetrieves any active loaded object of Type type.
FindFirstObjectByTypeRetrieves the first active loaded object of Type type.
FindObjectsByTypeRetrieves a list of all loaded objects of Type type.
InstantiateClones the object original and returns the clone.
InstantiateAsyncCaptures a snapshot of the original object (that must be related to some GameObject) and returns the AsyncInstantiateOperation.
SetGlobalAnisotropicFilteringLimitsSets Anisotropic limits.
SetStreamingTextureMaterialDebugPropertiesThis function sets mipmap streaming debug properties on all materials known by the mipmap streaming system.

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.