The Prune Weights window allows you to set weights that are below a certain specified value to zero. This has the effect of removing small or unneeded weights and generally cleaning up any weights that you may not want to have on nodes.

1. Select a mesh that has the Muscle deformer applied that you want to prune weights for.
2. Select Muscle > Weighting > Prune Weights from the main menu.

   The Prune Weights window appears.

   

3. From the Weight drop-down list, select the weight type you want to prune.
4. Enter the value you want to prune at. Any weights below this value are set to 0. For weight types that normalize (such as Sticky weights), any needed remainders are redistributed to the largest weight.
5. Click Prune Weights.