TextureReader

Reader of image texture

Helper class reading data from texture. Used withing image processing pipeline to get texture data on the client side.

Constructors

new TextureReader()

new TextureReader(gl): TextureReader

Constructor

Parameters

• gl: WebGL2RenderingContext

WebGL context where program is instantiated

Returns

TextureReader

Properties

frameBuffer

protected frameBuffer: null | WebGLFramebuffer = null

Frame buffer

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gl

protected gl: WebGL2RenderingContext

WebGL context where program is instantiated

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pixelBuffer

protected pixelBuffer: null | WebGLBuffer = null

Methods

dispose()

dispose(): void

Dispose texture reader

Releases resources and instances allocated by reader. Reader object cannot be used after calling dispose().

Returns

void

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read()

read(image, level): null | Uint8Array

Read texture data

Parameters

• image: ImageTexture

Image texture

• level: number = 0

Mipmap level

Returns

null | Uint8Array

Texture data

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readAsync()

readAsync(image, level): Promise<null | Uint8Array>

Non-blocking read of texture data

Parameters

• image: ImageTexture

Image texture

• level: number = 0

Mipmap level

Returns

Promise<null | Uint8Array>

Texture data