# Function: asData()

> **asData**\<`T`\>(`source`): `T`

Defined in: [linear.ts:12](https://github.com/debuffjp/debuff/blob/487a371b887e2dbf1b4e95719a9b0b5ed1a5efa1/packages/spryte/src/linear.ts#L12)

Marks an image as data, not colour: an MSDF atlas, a noise or lookup table. Under `blendSpace: "linear"` colour
images are stored as sRGB so sampling returns linear light; a data image keeps its bytes as they are, which
is what a shader reading distances or indices needs. Call it before the image is first drawn. Has no effect
under the default sRGB blending. Returns the image.

## Type Parameters

### T

`T` *extends* `object`

## Parameters

### source

`T`

## Returns

`T`