Rukhanka is a GPU and CPU ECS Animation System that uses standard Unity animation editing tools (i.e. ‘Mecanim’) as authoring workflow. It produces exactly the same animation results as the CPU engine. The animation engine can be preconfigured or switched per entity at run time.
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This is a paid asset, but now you can download the “Rukhanka Animation System 2” for FREE. Please keep in mind that this package is provided only for learning purposes or to test before buying the product, NOT FOR COMMERCIAL PURPOSES.
Rukhanka Animation System 2 v2.2.1 (04 May 2025) (Latest version)
“If possible, please buy the package to support the developer”
Description
Rukhanka depends on the ‘Entities’ package. It prepares animation data for rendering with the ‘Entities Graphics’ package. These two packages are required for the functioning of Rukhanka.
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Rukhanka is an ECS animation system that mimics the standard ‘Mecanim’ animation system of Unity. Use familiar tools for authoring animations and animation state machines without any difference from the ‘Monobehaviour’ world. During the baking phase, it converts all required Animator, Animation, Skinned Mesh Renderer, and Avatar Mask data into its internal structures. All converted data is ‘Burst’ compatible and processed in a parallel and very performant way.
An innovative GPU animation engine is implemented using GPU compute shaders and can run on any platform that supports Vulkan/Metal/D3D11+ APIs. It produces exactly the same animation results as the CPU engine. The animation engine can be preconfigured or switched per entity at run time.
Rukhanka has the following main features:
GPU and CPU animation engines, that can be switched at run time
Unity Animator Controller conversion and processing
Generic and Humanoid animations and avatars
Animation data preparation for Entities Graphics skinned meshes
Bone visualization system
Extended logging and validation layer
Arbitrary (non-skinned meshes) object hierarchy animation
Avatar masks
Root motion
All 2D blend tree types support (Direct, 1D, 2D Simple Directional, 2D Freeform Directional, 2D Freeform Cartesian)
Client-server animations synchronization with ‘Unity Netcode for Entites’ package
Works with Unity.Physics
Animation and animator controller events
Inverse Kinematics
Blend shapes
Full source code
The package contains samples for HDRP and URP.
Rukhanka has limitations:
Legacy animations are not supported.
Although Rukhanka implements all core animation functionality it is not 100% equivalent to Unity ‘Mecanim’. For a full feature support matrix please refer to documentation.
CPU and GPU animation engines have different feature support. All different details described in documentation.
Technical details
Dependencies:
Unity 2022.3 or Unity 6
Entities 1.0.16
Performance:
100% Burst compatible. All core systems are ISystem based.
Animations processed on per-bone basis, not per-object. This allows fully utilize all available processor cores in high-bone and low-bone skinned meshes.
