Empty collection and MOPP parser

[AnyResO]

I'm trying to import an old map made for Unreal Engine 2 / 2.5 in UnrealEd.

@crapola Do you know why importing the following map in Blender 4.0 results in an empty collection with no meshes?

https://gist.github.com/AnyResO/1754e25777c75f5f8d1f3e170d62826c

[AnyResO]

Ah it seems your regex here expects classes to be only Brush while it could be Engine.Brush

blender_t3d/blender_t3d/t3d_parser.py

Line 30 in 7f77cfd

pattern:str=r"""(Begin Actor Class=Brush .*?End Actor)"""

see https://gist.github.com/AnyResO/1754e25777c75f5f8d1f3e170d62826c#file-mp-beml4-canyoncrusade-t3d-L32

[crapola]

Indeed, I think using r"""(Begin Actor Class=(?:Engine.)?Brush .*?End Actor)""" will work.

[AnyResO]

It seems that a .t3d can also be tied to a binary .mopp.
Do you by any chance have any clues on how to extract the terrain geometry from this file?

I found this wiki that describes the format in more detail, but that's all for now
https://github.com/niftools/nifxml/wiki/Havok-MOPP-Data-format

Here's a zip archive with sample data
MP-BEML4-BloodVeldt.zip