Twinmotion 2023.1 Preview 2 Release Notes

Twinmotion 2023.1 Preview 2 is now available.

If you're an existing user, you can download and install the latest release from the Epic Games Launcher on your computer.

If you're a new user, you can get started here.

Feel free to start a New Discussion in the Twinmotion support community to share your thoughts on this release. If you need to report a bug regarding this release please contact Customer Support.

What’s New

New User Interface (UI)

The user interface has been redesigned to offer greater flexibility and speed of work.

• The More buttons in the docks have been replaced by a Properties panel where you can view and modify all settings.

• The Properties panel groups all of the Twinmotion settings. These are organized into three levels for quick access and easy navigation back to the main settings.

  • Level 1: the main settings, these are the most important controls to quickly adjust your scene.

  • Level 2: additional controls that offer extra settings for your scene.

  • Level 3: settings for precision and technical fine tuning.

• The Header above the Viewport gives you direct access to:

  • The Home Panel, which contains Architecture and Product visualization templates to quickly get started with new scenes.

  • The Toolbar, which contains Render, UV, Transform, Gravity, and Axis tools.

  • My account, where you can sign in and out of your Epic Account, and open Twinmotion Cloud.

• With the shortcuts in the Footer below the Viewport, you can show and hide the docks and panels. Note that the Transform panel is now named XYZ, and Scene states are now named View sets.

• The new Twinmotion interface provides flexibility to users for configuring the layout of the interface, with panels and docks that can be shown or hidden, and a Properties panel that can be docked next to the Scene panel.

• With the new Interface scale option in the Preferences panel, you can adjust the resolution of the interface from 75% to 200%.

• F1 shortcuts that open videos showing various workflows are available in many of the tooltips.

• The Library panel and Scene graph have not changed, however some visual elements have been modified to match the visual style of the new user interface.

Viewport Resolution Scaling

You can now change the resolution of the Viewport with the new Viewport Resolution Scaling option in the Preferences panel.

• Choosing 30%, 50%, or 70% will improve performance in frames per second (FPS) but will decrease the visual quality in the Viewport.

• Choosing 100% will give you the maximum quality you can get on your monitor.

• By default the resolution is set to Auto, which is the optimal setting for both quality and performance.

New Path Tracer Features

The Path Tracer now supports the following features:

• Decals

• Height fog

• Improved atmospheric rendering, including sky color and light scattering.

• Temporal video denoising (Preview): The denoiser option must be enabled in the Path Tracer settings. This denoiser does not remove rendering artifacts, but it can reduce them.

• Multi-GPU support: Windows 10 version 2004 or later is required to use multiple GPUs. Computing lighting with multiple GPUs is supported through NVIDIA's Scalable Link Interface (SLI) technology which links multiple NVIDIA GPUs together.

  The Use Multi GPU option is available in the Preferences panel under Path Tracer.

Credit Export for Sketchfab Assets

To be compliant with the Creative Commons license rules, you can now export the license information stored in Sketchfab assets used in a scene.

• License information is exported in a .CSV file, and formatted to be compatible with spreadsheets using delimiters (separated by “ ”).

• Available under: File > Export credits.

Scaling at Container Level

The contents of Containers in the Scene graph can now be scaled all at once by selecting the Container and using the Scale tool.

Limitations:

• Non-uniform scaling on Containers is not supported.

• The following Library assets will not scale inside Containers: Measure Tool, Doors, Animators and any child object of the Animator, Decals, and Landscapes.

• Paths, and painted and scattered vegetation created in your scene will not scale.

• Trees from the Library can be scaled when inside a Container, but any change to the Age setting of a tree in the Properties panel will reset the tree to its default scale.

High Quality Reflections

You can now enable high precision vertex normal and tangent encoding when importing your assets in order to improve the quality of reflections. To do this, select the Full precision normals checkbox in the Import window.

IES Lights

In addition to fixing certain regressions that were introduced in previous builds, the functionality of IES lights has been improved. It is now possible to import non-symmetric IES files and render them accurately.

UV Mapping of Primitives

To add more visual consistency, the UV mapping of Primitives in the Library has been improved and is now identical across all Primitives.

Industry Survey

An Industry Survey was implemented so you can tell us which industry you work in.

Bugs Fixed and Deployed on March 20th

• TM-11725 - Fixed a crash when attempting to use DirectX12 on an Intel HD GPU with an outdated driver.

• TM-11650 - Fixed a crash when opening certain 2023.1 Preview 1 files in 2023.1 Preview 2.

• TM-11510 - Fixed a crash when attempting to drag an item from a Container to the root of the Scene graph.

• TM-11723 - Fixed a crash when opening and editing certain scenes containing painted vegetation.

• TM-11728 - Fixed a crash when using Twinmotion on a Virtual Machine.

Bugs Fixed in Preview 2

Cloud Assets - Megascan - Sketchfab

• TM-10762 - Fixed an issue where multiple unused materials were created when dragging cloud assets into a scene.

• TM-11184 - Normal smoothing of cloud characters has been fixed.

Core

• TM-8544 - Fixed an issue where the Safe frame option was resetting the phasing status of Local and Cloud Presentations.

• TM-8160 - Fixed Z-fighting and other issues when snow and foam are both enabled.

• TM-11361 - Fixed an issue where Sculpted Terrain did not appear correctly in media previews and exports.

• TM-9129 - Fixed an issue with Containers containing terrains being saved to the User Library which led to an application freeze on exit.

Interoperability

• TM-11120 - Fixed an issue when importing a PNG file as a Landscape where the Reset Option only worked when the Smoothing option was selected.

• TM-10782 - Fixed an issue where a static mesh was exported when a measure tool was exported through the Datasmith Exporter.

• TM-10779 - Fixed an issue where the Section cube tool was exported as geometry through the Datasmith Exporter.

• TM-10870 - Point cloud .e57 files are now importing correctly.

Rendering

• TM-6889 - Fixed an issue where the Notes leader line was missing at export.

• TM-11071 - Fixed an issue where Backdrop HDRIs were appearing twice on reflective material when rendered in Path Tracer mode.

• TM-7017 - Fixed an issue where Clay render did not render two sided objects correctly.

Tools

• TM-9344- Fixed an issue where door triggers did not work when doors were selected.

• TM-11102 - Fixed a crash that occurred and an issue where the Custom path was not visible when selecting a Custom path loaded through a legacy scene.

• TM-11081 - LED Wall video textures are now displaying correctly in Cloud Presentations.

• TM-11175 - Fixed an issue where deleted descriptions in Notes were reappearing when a scene was reopened.

• TM-10926 - Fixed an issue where the body of Notes could not be moved or rotated.

• TM-10856 - The Delay option on Custom paths now works correctly on the first pass.

• TM-10857 - Fixed an issue where Vegetation Age settings on certain assets were not maintained after reopening a scene.

• TM-10791 - Fixed an issue where Local and Cloud Presentations that contained Posed Humans were sometimes crashing.

UI

• TM-11524 - Fixed an issue with the Media icons in Presentations.

• TM-11091 - Fixed an issue where colors previewed in the Color picker appear washed out.

• TM-8702 - Fixed an issue with the Favorites filter in theLibrary not loading correctly.

VR

• TM-11223 - Black strips are no longer visible in the background of the starting scene.

• TM-11296 - Fixed an issue where icons were missing in the user interface of Presentations.

Known Bugs and Limitations

Cloud Assets - Megascan - Sketchfab

• TM-11013 - The orientation of cloud assets is different from local assets.

• TM-10224 - The thumbnails in the Quixel Megascans Variation window are displayed with low LODs.

• TM-11097 - Quixel Megascans "Mossy Chapel Stone" asset has missing texture on preview.

• TM-11554 - Non square Quixel Megascans Surface maps cannot easily be sized correctly.

• TM-11541 - Export of CSV files (Sketchfab credits or Material GUID) is not working on macOS Monterey or Ventura.

• TM-11569 - Quixel Megascans assets lose their textures after texture modifications are undone.

Content

• TM-11494 - The pivot points on all healthcare assets with wheels are incorrect.

Core

• TM-9761 - Backward compatibility issues with Landscapes saved in the User Library. This is currently not supported.

• TM-10170 - Blending mode is incorrect when painting Landscapes using materials from the Quixel Megascans library.

• TM-10169 - When painting Landscapes, the default scale of materials dragged to the dock is not kept.

• TM-10166 - Distance fading does not render correctly on Landscapes.

Interoperability

• TM-10978 - Random crashes when importing SketchUp .udatasmith files on MacOS.

• TM-10815 - Crash when reimporting LiDAR Point Cloud files.

• TM-10797 - Default material is bright red on MacOS in UE after being exported from Twinmotion using the Datasmith Exporter.

• TM-10778 - Spot light cone angle is wrong in UE after being exported from Twinmotion using the Datasmith Exporter.

• TM-10772 - Water volume has no material in UE after being exported from Twinmotion using the Datasmith Exporter.

• TM-10793 - Tint RGB values on Glass materials are not preserved in imported FBX files.

• TM-10037 - Certain buses have one-sided materials instead of two-sided in UE after being exported from Twinmotion using the Datasmith Exporter.

• TM-10036 - Aircraft have no material in UE after being exported from Twinmotion using the Datasmith Exporter.

• TM-11499 - The Import button may be disabled when the Enable Substitution checkbox is selected.

  Workaround: Deselect the Enable Substitution checkbox or re-apply the path for the CVS file.

• TM-11302 - The import of .udatasmith files takes an unusually long time when using the Collapse mode.

• TM-11266 - The material on Posed humans is incorrect in Datasmith files imported into UE 5.1.

• UE-179297 - Lighting issue with Sketchup files imported into Twinmotion using Datasmith Exporter plugins.

Render - Export

• TM-9542 - Artifacts on colored shadows in Path Tracer mode.

• TM-11501 - Frequent crashes when using the Path Tracer on AMD GPUs.

• TM-11492 - Path Tracer is launched twice in a row in Media mode.

• TM-11255 - Conflict between snow and clay renders (glitches on surfaces).

• TM-11719 - "Error not supported" message appears when attempting to use the Path Tracer on certain compatible GPUs.

• TM-11712 - Path Tracer continuously renders in the Viewport when the Dynamic resolution option is selected.

  Workaround: Deselect the Dynamic resolution checkbox in the Quality tab of the Preferences panel.

Tools

• TM-8949 - Color from Measure Tool head and tail is not persistent between sessions.

• TM-8910 - Turning off the Facing camera setting for Notes does not revert the camera back to its previous state.

• TM-11014 - Cutouts facing the camera break when parented to an object and rotated.

• TM-7341 - Notes cannot be copied with Shift + Drag.

• TM-10751 - Unable to cancel Presentation exports.

• TM-8949 - Measure Tool head and tail color persistence issue when opening legacy scenes.

• TM-11117 - Crash when moving the Measure tool in the Scene graph after scaling it in a container.

• TM-11316 - Crash after the Monochromatic template is downloaded and loaded for the first time on some MacOS configurations.

• TM-11553 - Notes are not visible in the Notes Preview panel.

• TM-11510 - Crash when dragging an item from a Container to the root of the Scene graph.

• TM-11272 - When the default pivot point of an object is changed, the pivot point reverts to the default when the object is used in a Custom path.

• TM-11245 - Objects in the Viewport cannot be selected when a cloud asset is selected in the Library.

• TM-11225 - 3DConnexionSpacemouse does not work in Local Presentations.

Twinmotion Cloud

• TM-11512 - Login to EOS prompts after exporting Panorama Sets and before they are uploaded to Twinmotion Cloud.

UI

• TM-11513 - Assets with child items should be collapsed by default.

• TM-11520 - Multiple tooltips appear in the Viewport when importing a file.

• TM-11352 - Right-clicking on Ambience opens up the Scene graph menu.

• TM-11327 - The Material dock jumps when selecting a material.

VR

• TM-10548 - Haptic feedback duration is too long on controllers when using the Varjo OpenXR runtime.

• TM-10547 -The edges of the central display area can be seen on the Varjo VR-3 and XR-3 headset due to continuity issues between the central area and peripheral area. This effect is worse on higher quality modes.

• TM-10731 - HDRI does not render on the right eye in VR.

• TM-11159 - Some shadows remain when moving the headset.

• TM-11134 - Reflection probes are rendered black on the right eye.

• TM-11127 - Oculus Quest 2 controller pointer is not straight.

• TM-11126 - Weather effect particles are visible inside buildings.

• TM-11516 - Shadows are not properly scaled and placed in Varjo headsets.