# Simplygon 9.1 Release Notes

# Latest Simplygon 9.1 release 9.1.22400.0

3ds Max/Maya
- Added TextureDirectory button and browser
- Fixed issue when passing TextureOutputDirectory between UI and plug-in
Unity
- Fix for material names in GeometryDataCaster
- Support for prefab creation
FBX
- Read material channel colors from FBX files
UE4
- Fixed hardcoded path to SimplygonSDK inside the Simplygon module. The plugin should now work properly when putting it in project plugins folder.
- Fixed plugin compile issues when disabling PCH usage
- Added pipeline error checks. Errors should now be reported to the output log if a simplygon pipeline fails.
- Removed redundant processing timer. Pipeline execution time is now reported once to the output log.
Fixed inconsistent UV borders for ReductionProcessor
Python SDK stability improvements
Move installer, Uninstall.exe and SimplyUpdate.exe to .NET 5 to avoid random start-up failures
Fix for field index verification in ShadingGeometryFieldNode

# Older Simplygon 9.1 releases

# 9.1.20400.0

3ds Max
- Preserving unmapped vertex color fields
Maya
- Added support for color management
Unity
- Texcoords now imported even if not used
- Support for casting to other file format than PNG
- Fix for invalid number of submeshes in LOD
- Import method extended to better support custom scripting
3ds Max, Maya and Unity
- Fix for failing to import cascaded pipelines in UI
Support for indexed textures with bit depth 1
Support for Python 3.9

# 9.1.19200.0

3ds Max
- Support for materials with the same name
3ds Max and Maya
- Texture output directory option now available in the UI
- Select processed meshes option now available in the UI
glTF
- Fixed crashes when exporting skinned assets
New console input parameter for license application -DontSendTelemetry

# 9.1.17700.0

Blender
- Extended BSDF material support
glTF
- Added support for KHR_materials_clearcoat
- Added support for KHR_materials_transmission
Fix for incorrect blending when using ETextureBlendType::Over
Memory usage optimizations
Added memory tracking tool

# 9.1.16600.0

Blender
- Reduction template now works in Blender 2.91 and 2.92
Unity
- All Simplygon namespaces are now available in the Simplygon.Unity.EditorPlugin.dll and can be used for scripting
- The SPL/ini dependency is now removed from the editor plugin src for easy compilation
- Fix for missing environment variables when running Simplygon in Unity for the first time
UE4
- Fixed section info mapping for LODs with no material baking
FBXExporter
- Fix for preserving scene units
GLTFImporter
- Default material is now added to avoid crash if materials are missing
Added STL file format support
Fixed memory leak in color caster and DDS writer

# 9.1.14300.0

Welcoming Simplygon Free users to Simplygon 9
Unity / USD
- Added support for texture wrapping (repeat, clamp, mirror) to USD
- Path, WrapMode and SRGB are now texture specific
- Fixed issue when using Unity's Unlit shader (caused by invalid color values in USD)
- Fixes for root node rotation and scaling issues
- Always add base color when using automatic casters
- Fix for metallic/smoothness automatic casters and material channel name
- Added check for USD 2.0 installation status
- Documentation updates
- Knows issues:
  - Unity.USD.Export ignores SRGB - USD implementation limited to detecting normal maps
  - Unity.USD.Import ignores WrapMode - USD fully support WrapMode
  - Unity.USD does not export offset and tiling - USD does not seem to support these
Blender
- Fix crash when processing an asset without basecolor texture in Blender
- Added warnings for unsupported material channels
- Added checkboxes to the different reduction targets for StopCondition to function properly
- Added processing progress tracking
- Fixed automatic material casters
- Fixed SingleViewImpostor view direction
- Material caster deserialization fix
- Fixes for processing issues with cascaded and non-cascaded processings
- Documentation updates
Maya
- Removed length limit of field names for UVs and vertex colors
GLTFExporter
- Fix for opacity in basecolor alpha channel
- Fix crash when exporting asset without basecolor texture
Add ability to run Simplygon Grid Agent as a service
Add option for setting FBX file format version when using FBXExporter
Added possibility to zoom images in documentation
Fix crash when trying to run a remeshing with ERemeshingMode::Inside on a mesh without an inside
Fix crash when processing in Houdini (add support for GlobalAttributes in bgeo files)
Fix material section info when processing static meshes via LOD recipes in UE4

# 9.1.9100.0

Support passthrough of animation data in glTF
Read access violation fix
Houdini plugin fixes;
- Fix memory leak in HoudiniExporter
- Fix for missing temp dir in HDA scripts
- Added early check for triangulated input in HoudiniImporter
- Fix for temp dir cleanup
Changes to ERemeshingMode::Manual due to known issues with the implementation in 9.1 (will be fixed in 9.2). See ERemeshingMode for more information.
UE plugin fixes;
- Fix, incorrect section info mapping when using reduction pipeline from LOD Recipe
- Fix, crash when using the plugin without a valid license
- Fix, material baking settings was not reset correctly when removing all material property casters
- Fix, reset mapping image settings when material baking is disabled
- Chart aggregator is now using correct default values (same as aggregation)
- Added LOD streaming settings to LOD Recipe
Fix serialization of tangent space global settings
General Unity plugin improvements related to material mapping, transparency, skinning and impostor processor support. Upgrade to Unity.USD 2.0.
General Blender plugin improvements including UI cleanup, progress tracking and normal maping fixes etc.
Improved memory usage for long running processes using Simplygon
Fixed issue with MaxEdgeLength causing bad outputs. Default is now REAL_MAX and setting removed from integration UIs.

# 9.1.6600.0

Support for Unity USD package 2.0
Fixed crash when appending packed geometry with very few vertices
Fixed issue with OpacityInAlpha in color caster

# 9.1.6200.0

Support for running SimplygonGrid over multiple subnets
Support for distributing processings without locally installed license
Maya - fixed mapping issue related to bones with same name
Maya - stability improvements
3ds Max - stability improvements

# 9.1.5200.0

glTF texture packing improvements
Fixed crash in legacy remesher

# 9.1.4100.0

Blender 2.91 support
Fix for 3ds Max multi-material mapping issue
Fix for morph target issue
Unity impostor fix

# 9.1.3200.0

Blender fixes
glTF texture name handling

# Initial release (9.1.2600.0)

# Major updates

Standalone UE4 plugin
New impostor processor
Autodesk 3ds Max plugin (Max 2021 in preview)
FASTBuild and Incredibuild support
New integrations as previews: Blender, Houdini & Unity
New file formats: USD and Alembic

# Simplygon API updates

Ability to use opacity as transparency in material casters
Foliage processor is now part of impostor processor type: billboard cloud
Added posibilty to add meshes to CameraSelectionSets
Visibility support in new remeshing processor
Added method to dump a settings object as JSON
Added geometry field shading node
Added missing rotation methods to texture shading node interface

# Pipeline updates

Added batch API
Added support for metadata in pipeline settings
Added cascaded pipeline support in pipeline settings path
Arbitrary pipeline in cascade mode as intermediate
New setting for unique material names in pipelines

# Max plugin updates

Camera support for visibility
Automatic export of active selection sets
New impostor pipeline
Added support for legacy INI settings
Added support for physical material system in Max 2021 preview

# Maya plugin updates

Camera support for visibility
Automatic export of active selection sets
New impostor pipeline
ShaderFX/Stingray PBS documentation
Added support for legacy INI settings

# File format updates

Support for glTF KHR_texture_transform
Skinning support for glTF
glTF: Support for separate wrap modes
Support for Alembic and USD

← UI Older versions →