vastSolver 2.0

vastSolver 2.0




The vastSolver is an Autodesk® Maya® plugin that lets you convert any vertex animation into a skin weights and joints animation. The main use is to compress mesh animations, such as a blendshape-driven animation or a cloth/muscle simulation, for use in the game engines.




Now you can use the existing joints skeleton and skinning weights and solve for joints animation only. A skeleton and weights do not have to be produced by vastSolver - it works for any joints hierarchy. 


The vastSolver comes with a compact GUI that lets you set basic parameters (such as a maximum number of joints) and two additional controls to fine-tune solving. Also, a Maya command is provided: there is a User Guide that contains command documentation.


On a technical note, the solver implements an iterative algorithm that searches for the best approximation of a vertex animation. The solver is robust to a non-uniform deformation (e.g. when a portion of the mesh does not have any deformation). The solver implements a custom solving strategy with the goal of the best results for fewer joints. For this purpose, it features Laplacian smooth skin weights regularization. The user can fine-tune parameters of Skin Regularization to get better results or to produce skin weights that resemble hand-painted weights.


By default, the solver solves for translations and rotations of joints. The user can choose to solve for joints scaling. This usually improves results.


The plugin comes with a User Guide and a test scene.


Demo video:


License Activation Process

To activate the vastSolver plugin follow these steps:

  1. After the purchase is completed you will immediately receive a product key by email;
  2. Enter your email address (associated with your Autodesk App Store account) and the product key in the vastSolver activation window;
  3. Generate and copy a response key;
  4. Go to and paste the response key to get an activation code;
  5. Enter the activation code in vastSolver activation window and press Activate.


The product key can be used to install the plugin on up to 2 personal devices.



We offer a commerce license for 5 or more seats. For more information please contact

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Informationen zu dieser Version

Version 2.0.1, 23.02.2021
- Adds Joints Only mode - the solver can now use existing joints skeleton and solve for joints animation - Adds support for a commercial license - Improves multithreading support on macOS

Screenshots und Videos


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  • Great!
    Marc Felico | Juli 10, 2020 Geprüfter Download (Was ist das?)

    PErfect, plugin for a convert ncloth simulations to joints and so can export to unreal engine. Congrats!

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