Release Notes VStitcher 2023.3.1

Release Notes VStitcher 2023.3.1

Release Notes

Build 53649

December 31, 2023

The release notes include:

  • What's new and improved in VStitcher 2023.3.1

  • What was fixed in VStitcher 2023.3.1
  • What was removed in VStitcher 2023.3.1
  • Instructions on upgrading and downloading new VStitcher versions

What's New and Improved in VStitcher 2023.3.1

This release includes the following new and improved features:

  • 2D Measure Tool​​

Enhancements to the 2D Measure tool provide pattern makers with advanced 2D inspection capabilities, reduces the need to switch between software, reduces file conversions (importing and exporting DXF files), and speeds up the fit approval process. Pattern makers can use the 2D Measure tool to measure and inspect pattern pieces in all sizes. The tool includes the ability to create mathematical formulae to allow comparing edge structure using edge length, X, Y and straight values.

For more information, see 2D Measuring.

  • Symmetrical Styling

A new symmetrical styling mode was added to the Styling menu. This mode allows pinching a 3D garment on one side and seeing the same styling results on the symmetrical piece on the other side.

For further information, see 3D Styling.

  • Transferring Avatar Measurements

Added the Import Avatar Measurements and Export Avatar Measurements buttons in the Edit Avatar pane, which allow transferring measurements between avatars in CSV format.
You can transfer measurements:

    • From a CSV file to a parametric avatar
    • From a non-parametric avatar to a parametric avatar with measuring tapes, in CSV format
    • From old avatars (Deborah and Adam) to newer avatars (Olivia and Oliver)
    • From older parametric avatar versions to newer versions
    • Between ethnicities (from Olivia to Gabrielle or Lili)

For more information, see Transferring measurements between avatars.

  • New Parametric Avatar Deformation Options​​

This version includes additional deformation options for the most realistic 3D version of fit models. For more information, see Editing New Parametric Avatars.

Feature Description Avatar
Hair position Changes the hairstyle position


New Poses

Sitting, Bicycle, Running, Walking

Olivia, Oliver
Body part - Neck Height

Changes the height of the neck - a non-measurement body part

Remove Hair with Check Mark Includes a checkbox to remove hair; not a slider Olivia, Oliver, Charlie, Emil, Emily
Body part - Lower Thigh Adjusts the lower thigh measurements Olivia, Oliver
Body part - Crotch Shape Edits the crotch shape to look more realistic Olivia, Oliver
Body part - Arm Rotation Rotates the arms through the shoulders. Provides different arms postures. Olivia, Oliver
Body part - Muscle Reverse Option Reduces the muscles and creates a smoother body shape Oliver
Switch Hair Switches between two hair shapes Charlie, Emily
Body part - Age Adjusts the age of the avatar Faceless Baby, Charlie, Emil, Emily
  • Toggle Edges Length Display in 2D

    Added a button to allow toggling to show or hide all pattern edge length measurements. This option aligns with common display options found in other CAD systems. For further information see 2D Window Details.

  • Set Corner Points as Grading Points by Default

All corner points generated by the users, either by creating a shape or adding a point, are defined as grade points by default. As a result of this change, the Grade point property was removed from the context view of points. For further information see Configuring Points as Grade Points.

  • Parametric Lights - 3D Gizmo Improvements

To provide consistent and flexible 3D transformations for parametric lights, the Spot, Directional and Area lights will now use all the local transformation options. This means that the 3D gizmo will always be aligned with the object coordinates. Point light will use World transformation, which means that the 3D gizmo will always be aligned with the world coordinates. These changes support a smooth workflow and maintain the 3D transformation when changing the light type. For further information see Parametric Lights.

  • Include Piece Names on Exported 3D Geometries for glTF and GLB

Pattern piece information is now included in glTF and GLB file formats when exporting 3D objects. For further information see Editing 3D Object Export Settings.

  • Color Library Additions

Added the Polyester Color Library by Archroma. 

  • New Default PBR Mode for Exported glTF and GLB

Changed the default PBR mode for exported glTF and GLB to Metalness/Roughness instead of Specular/Glossiness to align with the most common and most expected PBR standards. Metalness/Roughness is a lighter weight export option and it produces less artefacts or unexpected display issues on web viewers.​​

What was fixed in VStitcher 2023.3.1

  • Internal lines did not appear in the 3D window when the "Show in 3D" button was toggled on.
  • Pattern shape attributes and artwork handles appeared in the Tech Pack although these were not selected for inclusion prior to exporting.
  • The 3D trim textures did not display in the 3D window when using OpenGL Engine.
  • Unused pattern pieces in the 3D window appeared in manually saved snapshots.
  • Inconsistencies in tension maps when opening the same file in different VStitcher versions.
  • The fabric group "shell fabric+ AOP" did not appear in the same row when the Tech Pack was rendered for Excel and "Consolidate by material name" was selected for all colorways.
  • An additional colorway appeared in the Multipack Render Preview.
  • Wire stitch lines were not visible in Prepare Mode.
  • White specks appeared in fabric where the Fur property was applied.
  • Incorrect stitch size is applied to smart zippers in sizes other than base size, resulting in an uneven simulation.
  • After optimization, file size increased.
  • Saving an outfit caused VStitcher to crash.
  • Not all colorways were rendered when the “All colorways” option was selected.
  • The 3D workspace did not display properly when opening some files.
  • Color names appeared as RGB values and not as actual names when updated via API.
  • In the Excel Tech Pack Annotations layout, rows were not scaled so that all information was immediately visible by default.
  • The API MenuFunctionReloadAdd plugin was not working properly.
  • The facial appearance of custom parametric avatars was distorted using OpenGL render engine.

What was removed in VStitcher 2023.3.1

  • BWO viewer

    As of this version, the BWO Viewer is no longer supported. To view garments in 3D on all platforms without installing an additional viewer, it is possible to generate animated GIF files or export glTF/GLB files instead. Animated GIF files can be sent as email attachments and glTF/GLB files can be loaded on web browsers.


Download and Upgrade Versions Instructions


Upgrading to VStitcher 2023.3.1:

  • Download and install VStitcher from here.

  • Cloud License Users - send your upgrade request to There is no need to send any files.
  • Dongle License Users - you must update your license dongle. Send your C2V to For further information, refer to Retrieving a C2V File and Applying a V2C File.

  • If you need to renew your contract and are interested in version 2023.3 contact

File Versions

Lotta 2023.3 and VStitcher 2023.3 both support files created in earlier VStitcher and Lotta versions.

Earlier VStitcher and Lotta versions do not support version 2023.3 files.

Version Support

With the release of Lotta 2023.3 and VStitcher 2023.3 the company's support now extends to the following versions of Lotta and VStitcher:

  • 2023.2

  • 2023.1
  • 2022.2

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