Release Notes Lotta 2023.2 Pre-release

Release Notes Lotta 2023.2 Pre-release

Release Notes

Build 53451 - Pre-release of 2023.2

August 1, 2023

The release notes include:

  • What's new and improved in Lotta 2023.2

  • What's fixed in Lotta 2023.2

  • Instructions on upgrading and downloading new Lotta versions

What's New and Improved in Lotta 2023.2

This release includes the following new and improved features:

  • Apple Silicon Native Support​​

This release includes full compatibility with Apple’s M1 and M2 processors, enabling faster simulations. For further information, see the System Requirements.

  • HDRI lights

    HDRI Light improvements include improved 3D orientation, standardizing the 3D display with other 3D tools, and tools for better control over the lighting of a scene. This version includes the “Link HDRI to camera​​ option that allows controlling an object’s shadow.  
    For more information, refer to Adjusting the 3D Window Environment.

  • Parametric Lights

Included the ability to define custom Parametric Lights, to improve the overall look of the render output. You can add area, spot, directional, or point lights. Using Parametric Lights reduces dependency on HDRI, which requires more computing power for Unreal.

For more information, refer to Parametric Lights.

  • ​​​Full Support of Adobe Substance​​

Full support of all Adobe Substance format capabilities, including:

    • Support of Substance for fabrics, seams, artwork and trims
    • Full compatibility with the 13K materials in the Substance 3D Asset Store
    • Support of the Substance materials exported from the Substance 3D Sampler
    • Support of SBSAR files with non-square output sizes
    • Support of the Substance 3D Sampler embroidery filter in VStitcher
  • ​​Control Artwork Position per Size​​

Enable manual positioning of artworks for each size while maintaining the artwork size group. 
For more information, refer to Defining a Grouping of Sizes.

  • ​​​New Parametric Avatars​​

Added new parametric avatars for children: a boy toddler (2–4 years old), and a 5–10-year-old boy and girl.

For a list of all the parametric avatars, see the Parametric Avatars Overview.

  • ​​​New Kids Garments​​

Added new garments to the Kids section in the cloud, including dresses, skirts, and shorts. To use the new garments, make sure you first download the Charlie avatar. 

For details on how to access the new garments, refer to Import from Cloud.

  • Stitch Construction Improvement

    Improvements to the stitch construction include new sliders for better control over the depth of the normal and displacement maps, and width of the stitches. This release also includes improvements to the puckering and wash effects. For more information, refer toCreating a 3D Stitch Effect.

  • Vertical Resources Tabs 
    Some user interface changes have been applied to the resources tabs and are now displayed vertically. For more information, refer to Resources Tabs Details.

  • Insert Tool Improvements 
    Added the ability to insert ellipses and circles from the center point, and the ability to snap circles or ellipses together from the center point. For more information, refer to Inserting a Shape.

What's Fixed in Lotta 2023.2

This release includes fixes for the following issues:

  • Software sometimes crashing when changing between workspaces
  • Unexpected behaviors of 3D trim direction when assigning trims
  • Software sometimes crashing when Vray preview is open
  • Fabric results not always matching in the 2D and 3D windows
  • Unexpected shadows and holes in simulation and rendering results 
  • Some Chinese characters appearing distorted when importing DXF files with Chinese characters
  • Keyboard shortcuts can't be imported into the software

Download and Upgrade Versions Instructions

VStitcher 2023.2 is a pre-release version available to select users only. For more information on this release, please contact your customer support representative.

  • Download and install Lotta 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 2023.2 contact

File Versions

Lotta 2023.2 and VStitcher 2023.2 both support files created in earlier VStitcher and Lotta versions.

Earlier VStitcher and Lotta versions do not support version 2023.2 files.

Version Support

With the release of Lotta 2023.2 and VStitcher 2023.2 the company's support now extends to the following versions of Lotta and VStitcher:

  • 2023.1

  • 2022.2

  • 2022.1

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