Integrating 3dsMax 2018 - Vray UDIM Textures into Unity Help

[axbaby123]

I bought 2 Models as my Main Nemesis's.

www.cgtrader.com/3d-models/character/man/old-man-alex

and

www.cgtrader.com/3d-models/character/man/young-man-alex

They use some weird Texture system that looks awful and just plain weird in Unity.

TEXTURES / SHADERS

PBR Materials & Textures. 8 UDIM 4K textures for body and head.

The Modeller refuses to help, telling me I am on my own because he is too busy. ($300 wasted unless I can get these converted to Unity)

I have no idea how to use 3Dmax nor do I want to buy it. By the description I assume they were normal PBR materials for Unity/Unreal AND some weird UDIM stuff.

Does anyone have a clue how to fix these?  The modeller sent me this link www.fxguide.com/fxfeatured/udim-uv-mapping/

and now I am even more confused.

Thanks

I hope this is not too off topic but the characters once fixed will use Invector.

[axbaby123]

Apparently the model needs to be baked, I hate cooking and the mess afterwards.