Weights Tool

The advBlendshape Weights Tool manages painted blendShape weight maps as .bweights files. Open it from the AWT shelf button.

Painted weight maps (split masks like front, right, mouth) normally live on a single blendShape node and require repainting for every new mesh. This tool saves them to disk as a reusable library, applies them to any blendShape node in the scene, and can transfer them directly between blendShape nodes whose meshes differ in topology.

Source and Library

Element	Description
Blendshape	Dropdown of all blendShape nodes in the scene. Weights are applied to or exported from this node. Click the refresh icon to rescan.
Directory	Folder containing .bweights files. Click … to browse; the refresh icon rescans the folder. The directory is remembered between sessions.
Search	Filters the weight set list by name.
Weight Sets list	One entry per .bweights file found in the directory. Double-clicking an entry applies it immediately.
Method	How weights are mapped onto the blendShape’s base mesh: Index, UV, or Topology. The status icon shows compatibility. Index requires an exact vertex count match; hover for vertex counts.
Apply Weight	Applies the selected weight set to the chosen blendShape node using the selected method.
Export Weights	Saves the chosen blendShape node’s weights to a .bweights file. The list refreshes automatically if you save into the current directory.

Transfer

Transfers weights directly from the source blendShape node to another blendShape node, without an intermediate file.

Element	Description
Target Blendshape	The blendShape node to receive the weights. The source node is excluded from the list. Click the refresh icon to rescan.
Method	Mapping method between the source and target base meshes. The status icon shows compatibility. Index requires matching vertex counts.
Transfer Weights	Runs the transfer. Disabled until the selected method is compatible.

Batch Weights

Batch operations are available from the File menu in the Weights Tool.

Batch Export Weights

Exports weight maps for multiple blendShape nodes to .bweights files in a single directory.

Element	Description
Directory	Output folder for all .bweights files. Click Browse to select.
Node list	All blendShape nodes found in the scene, one per row. Check or uncheck rows to include or exclude them.
All / None	Check or uncheck all rows at once.
Export Files	Exports all checked nodes.

Batch Import Weights

Imports weight maps from .bweights files onto matching blendShape nodes.

Element	Description
Directory	Folder to scan for .bweights files. Click Browse, then Scan.
Entry list	One row per .bweights file. Each row shows the target mesh, the interpolation method, and a status indicator.
Interpolation Method	Per-entry method. Index requires matching vertex counts. The status icon confirms compatibility.
Import Files	Runs the import for all entries.