Animating thousands of fish with MultiMeshInstance3D — Godot Engine (stable) documentation in English

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Import configuration — Godot Engine (stable) documentation in English

Resources — Godot Engine (stable) documentation in English

Animating thousands of fish with MultiMeshInstance3D — Godot Engine (stable) documentation in English

Using AnimationTree — Godot Engine (stable) documentation in English

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2D skeletons — Godot Engine (stable) documentation in English