Export / Import¶

The Export / Import tab is the primary file interface: it writes a blendShape node to a .deltas file and reads it back onto any target mesh using topology-independent interpolation.

Open it from the main window.

Export¶

The Adv Blendshape Export section saves delta data from a blendShape node to a .deltas file.

Element	Description
BlendShape	Source blendShape node to export. Type a node name or click Assign to populate from the selected mesh.
File Path	Output `.deltas` file path. Click … to browse. Defaults to a temp directory.
Threshold	Minimum vertex delta magnitude to include. Deltas below this value are treated as zero. Default: `0.0`.
Export Blendshape	Runs the export. All targets and combination shape data are written to the file.

Import¶

The Adv Blendshape Import section reads a .deltas file and applies delta data onto a target mesh.

Element	Description
Target Mesh	Mesh to receive the imported blendShapes. Click Assign to set from the current mesh selection.
File Path	Path to the `.deltas` file. Click … to browse.
Interpolation Method	How vertex deltas are mapped from the file onto the target mesh. See Interpolation Methods. A status indicator shows whether the selected method is compatible with the current mesh and file.
Threshold	Minimum delta magnitude to keep during import. Targets with all deltas below this value are pruned.
Auto Name Combination Shapes	When enabled, imported combination shape nodes are renamed to `{Driver1}_{Driver2}_CS`.
Apply Constraints	When enabled, runs stored correspondence constraint groups after interpolation to correct closure ratios. Only active for the Index method. Requires constraint groups authored on the blendShape node.
Import Blendshape	Runs the import using all targets in the file, or the subset configured via options. If the target mesh already has a blendShape node, new targets are added into it.
Options button	Opens the Import Options dialog to select specific targets to import.

Import Options Dialog¶

Lets you select a subset of targets to import from the file.

Element	Description
Select All / Deselect All	Check or uncheck all targets.
Toggle Selected	Flips the check state of highlighted items. Use Ctrl+click or Shift+click to highlight multiple items first.
Target list	Every target found in the file, each with a checkbox. Unchecked targets are skipped.
Import Blendshape	Accepts the selection and immediately runs the import with the checked targets only.