---
title: "animation asset type"
description: "A single animation clip, as a composite asset. The folder <name>.animation/ carries:"
section: "Types"
slug: "types-animation"
canonical: "https://origozero.ai/docs/types-animation"
updated: "2026-07-31T07:12:26.452245214+00:00"
tags: ["asset-type", "reference"]
---

# animation asset type

- **`data.zanim`** — the engine-native binary clip payload (bincode `AnimAsset`):
  bone-named tracks, duration, channels. This is the asset's *primary*; consumers
  reference the `.animation` asset's guid, never this inner file. Parallel to how
  `.mesh` carries `data.zmsh`.
- **`humanoid.profile`** (optional) — the editable retarget holder: the clip's
  source-rig role↔bone map, so any humanoid rig can consume the clip. Written by
  the retarget setup (`animation.onCreate` path), inspectable and hot-reloaded.

Clips are produced by the model importers (`model`, `model_animation`),
which decode embedded animation tracks and call
`asset.create("animation", name, { bytes })`. Bare `.anim` files are the legacy
shape; the `.animation` composite supersedes them (existing `.anim` guids are
inherited by their migrated `.animation` asset so references keep resolving).