BaseTexture

Base class of all the textures in babylon. It groups all the common properties the materials, post process, lights... might need in order to make a correct use of the texture.

Hierarchy

Index

Constructors

constructor

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  • Instantiates a new BaseTexture. Base class of all the textures in babylon. It groups all the common properties the materials, post process, lights... might need in order to make a correct use of the texture.

    Parameters

    Returns BaseTexture

Properties

animations

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animations: Animation[]

Define the list of animation attached to the texture.

anisotropicFilteringLevel

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anisotropicFilteringLevel: number

With compliant hardware and browser (supporting anisotropic filtering) this defines the level of anisotropic filtering in the texture. The higher the better but the slower. This defaults to 4 as it seems to be the best tradeoff.

canRescale

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canRescale: boolean

Get if the texture can rescale.

coordinatesIndex

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coordinatesIndex: number

Define the UV chanel to use starting from 0 and defaulting to 0. This is part of the texture as textures usually maps to one uv set.

coordinatesMode

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coordinatesMode: number

How a texture is mapped.

Value Type Description
0 EXPLICIT_MODE
1 SPHERICAL_MODE
2 PLANAR_MODE
3 CUBIC_MODE
4 PROJECTION_MODE
5 SKYBOX_MODE
6 INVCUBIC_MODE
7 EQUIRECTANGULAR_MODE
8 FIXED_EQUIRECTANGULAR_MODE
9 FIXED_EQUIRECTANGULAR_MIRRORED_MODE

delayLoadState

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delayLoadState: number

Define the current state of the loading sequence when in delayed load mode.

gammaSpace

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gammaSpace: boolean

Define if the texture contains data in gamma space (most of the png/jpg aside bump). HDR texture are usually stored in linear space. This only impacts the PBR and Background materials

getAlphaFromRGB

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getAlphaFromRGB: boolean

Defines if the alpha value should be determined via the rgb values. If true the luminance of the pixel might be used to find the corresponding alpha value.

hasAlpha

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hasAlpha: boolean

Define if the texture is having a usable alpha value (can be use for transparency or glossiness for instance).

invertZ

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invertZ: boolean

Is Z inverted in the texture (useful in a cube texture).

is3D

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is3D: boolean

Define if the texture is a 3d texture (webgl 2) or if false a 2d texture.

isBlocking

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isBlocking: boolean

Define if the texture is preventinga material to render or not. If not and the texture is not ready, the engine will use a default black texture instead.

isCube

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isCube: boolean

Define if the texture is a cube texture or if false a 2d texture.

isRGBD

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isRGBD: boolean

Gets whether or not the texture contains RGBD data.

isRenderTarget

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isRenderTarget: boolean

Define if the texture is a render target.

level

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level: number

Intensity or strength of the texture. It is commonly used by materials to fine tune the intensity of the texture

lodGenerationOffset

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lodGenerationOffset: number

With prefiltered texture, defined the offset used during the prefiltering steps.

lodGenerationScale

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lodGenerationScale: number

With prefiltered texture, defined the scale used during the prefiltering steps.

name

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name: string

Define the name of the texture.

onDispose

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onDispose: function

Callback triggered when the texture has been disposed. Kept for back compatibility, you can use the onDisposeObservable instead.

Type declaration

    • (): void
    • Returns void

onDisposeObservable

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onDisposeObservable: Observable<BaseTexture>

An event triggered when the texture is disposed.

sphericalPolynomial

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sphericalPolynomial: Nullable<SphericalPolynomial>

Get the polynomial representation of the texture data. This is mainly use as a fast way to recover IBL Diffuse irradiance data.

see

https://learnopengl.com/PBR/IBL/Diffuse-irradiance

textureFormat

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textureFormat: number

Get the texture underlying format (RGB, RGBA...)

textureType

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textureType: number

Get the texture underlying type (INT, FLOAT...)

uid

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uid: string

Define the unique id of the texture in the scene.

wrapR

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wrapR: number
Value Type Description
0 CLAMP_ADDRESSMODE
1 WRAP_ADDRESSMODE
2 MIRROR_ADDRESSMODE

wrapU

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wrapU: number
Value Type Description
0 CLAMP_ADDRESSMODE
1 WRAP_ADDRESSMODE
2 MIRROR_ADDRESSMODE

wrapV

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wrapV: number
Value Type Description
0 CLAMP_ADDRESSMODE
1 WRAP_ADDRESSMODE
2 MIRROR_ADDRESSMODE

Static DEFAULT_ANISOTROPIC_FILTERING_LEVEL

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DEFAULT_ANISOTROPIC_FILTERING_LEVEL: number

Default anisotropic filtering level for the application. It is set to 4 as a good tradeoff between perf and quality.

Methods

clone

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delayLoad

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  • delayLoad(): void
  • Triggers the load sequence in delayed load mode.

    Returns void

dispose

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  • dispose(): void
  • Dispose the texture and release its associated resources.

    Returns void

getBaseSize

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  • Get the base size of the texture. It can be different from the size if the texture has been resized for POT for instance

    Returns ISize

    the base size

getClassName

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  • getClassName(): string
  • Get the class name of the texture.

    Returns string

    "BaseTexture"

getInternalTexture

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getReflectionTextureMatrix

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  • getReflectionTextureMatrix(): Matrix
  • Get the texture reflection matrix used to rotate/transform the reflection.

    Returns Matrix

    the reflection matrix

getScene

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  • Get the scene the texture belongs to.

    Returns Nullable<Scene>

    the scene or null if undefined

getSize

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  • Get the size of the texture.

    Returns ISize

    the texture size.

getTextureMatrix

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  • Get the texture transform matrix used to offset tile the texture for istance.

    Returns Matrix

    the transformation matrix

isReady

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  • isReady(): boolean
  • Get if the texture is ready to be used (downloaded, converted, mip mapped...).

    Returns boolean

    true if fully ready

isReadyOrNotBlocking

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  • isReadyOrNotBlocking(): boolean
  • Get if the texture is ready to be consumed (either it is ready or it is not blocking)

    Returns boolean

    true if ready or not blocking

readPixels

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  • readPixels(faceIndex?: number, level?: number, buffer?: Nullable<ArrayBufferView>): Nullable<ArrayBufferView>
  • Reads the pixels stored in the webgl texture and returns them as an ArrayBuffer. This will returns an RGBA array buffer containing either in values (0-255) or float values (0-1) depending of the underlying buffer type.

    Parameters

    • Optional faceIndex: number

      defines the face of the texture to read (in case of cube texture)

    • Optional level: number

      defines the LOD level of the texture to read (in case of Mip Maps)

    • Optional buffer: Nullable<ArrayBufferView>

      defines a user defined buffer to fill with data (can be null)

    Returns Nullable<ArrayBufferView>

    The Array buffer containing the pixels data.

releaseInternalTexture

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  • releaseInternalTexture(): void
  • Release and destroy the underlying lower level texture aka internalTexture.

    Returns void

scale

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  • scale(ratio: number): void
  • Scales the texture if is canRescale()

    Parameters

    • ratio: number

      the resize factor we want to use to rescale

    Returns void

serialize

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  • serialize(): any
  • Serialize the texture into a JSON representation that can be parsed later on.

    Returns any

    the JSON representation of the texture

toString

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  • toString(): string
  • Return a string representation of the texture.

    Returns string

    the texture as a string

Static WhenAllReady

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  • WhenAllReady(textures: BaseTexture[], callback: function): void
  • Helper function to be called back once a list of texture contains only ready textures.

    Parameters

    • textures: BaseTexture[]

      Define the list of textures to wait for

    • callback: function

      Define the callback triggered once the entire list will be ready

        • (): void
        • Returns void

    Returns void

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