Unreal crashes when trying to reopen project after importing a vray-scene with some meshes having more than 8 supported mapchannels.

Archive V-Ray for Unreal V-Ray for Unreal :: Issues
1

When importing the mesh of a galley into unreal, 3 meshes give the following error message:

mesh … has more than the supported 8 map channels.

The scene works fine, but when I close and save it and try to reopen it, it crashes, so I have to delete the content in the folder and then reopen the project.
The mesh has a vraymaterial with just mapchannel 1 and 3 occupied, but I assume there might be a map channel in the mesh somewhere that is not used.

Edit: Unfortunatelity the meshes throwing the error are not the issue. Something else seems to be wrong, not sure what it is.

Thank you. Really impressive this plugin.

Robert

2

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screenshot.PNG794×119 13.4 KB

Screenshot from log window after importing.

3

Hi Robert

I cannot seem to reproduce the issue on my end. Can you please send the content of PROJECT_NAME/Saved/Crashes and PROJECT_NAME/Saved/Logs folders, KernelBase.dll and ntdll.dll located in C:\Windows\System32 and/or Test project/scene that reproduces the problem.

Best regards,
Alexander

4

I have solved this. The issue were hidden faces on the edit-mesh-modifier on some objects in Max. The faces were hidden by us accidentally or by a former script. The objects were properly imported into Unreal, but on next opening, Unreal crashed.
I have implemented a small script that unhides all hidden faces with the meshop.functions.
I will try to put the information that you requested, together and send it to you.

This is the line of code for maxscript to fix the issue prior export:

for o in $ do meshop.setHiddenFaces o #{}