Known issues and limitations ​

Listed below are the current known limitations and issues.

General issues ​

• When running a long process and the user is performing other tasks, the add-on will still import as soon as the processing is over, potentially interrupting something else.
• Running a python script mid-processing causes Blender to forget that the processing is happening and the output is never imported back.

Scene inconsistencies ​

• Since the meshes go through the glTF exporter and importer certain geometry fields, material types, or other scene contents may disappear or be modified after processing.
• Scene node hierarchy may also be modified.
• Skinned meshes may behave strangely if they have transforms applied to the skeleton root.

Missing functionality ​

All functionality that depend on selection sets are currently disabled, including:

• Processing selection set
• Clipping geometry and clipping planes
• Custom cameras for visibility culling
• Etc.

Blender installed via Steam ​

We do not recommend using Simplygon with Steam's version of Blender due to following reasons:

• We do not detect a Blender installed through Steam so you need to perform manual installation.
• Steam auto updates of Blender can break compatibility with Simplygon add-on.

Materials ​

Since the meshes go through the glTF exporter and importer, the material channels that are possible to setup for casting are limited to those supported by the Blender glTF exporter.