# Interface: Motion (/pixi-vn-live2d/core/namespaces/Cubism2Spec/interfaces/Motion)



Defined in: node_modules/untitled-pixi-live2d-engine/types/index.d.ts:4917

## Properties [#properties]

### fade_in? [#fade_in]

\> `optional` **fade_in?**: `number`

Defined in: node_modules/untitled-pixi-live2d-engine/types/index.d.ts:4923

Motion fade-in timeout.

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### fade_out? [#fade_out]

\> `optional` **fade_out?**: `number`

Defined in: node_modules/untitled-pixi-live2d-engine/types/index.d.ts:4925

Motion fade-out timeout.

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### file [#file]

\> **file**: `string`

Defined in: node_modules/untitled-pixi-live2d-engine/types/index.d.ts:4919

`*.mtn` file.

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### sound? [#sound]

\> `optional` **sound?**: `string`

Defined in: node_modules/untitled-pixi-live2d-engine/types/index.d.ts:4921

Sound file.