But Unreal Engine treats things in its 3d world differently than how they were set up in the other 3d modeling programs. That’s why when importing in from other programs we have to make certain adjustments. Unreal Engine dose’t assign lightmaps to Blender models, so you have to make sure its got a lightmap baked first before importing or you get a black model when the lighting is built… Because there’s no 3d modeling program within in the engine itself and so those other programs have set their 3d worlds up differently than Unreal Engine’s has been
coded to do while these other programs have been coded to do things different to how the engine likes it. . . Had Unreal Engine had its own built-in3d modeling program we wouldn’t be having all these export/import issues that come when using third party software programs. This is why you run into issues with importing things into the engine from other programs. Not all the data gets transferred or you may have to make
adjustments. Even on Turbosquid, they say that converting from one model file format to another is no guanretee that it will 100% convert or that you won’t lose any modeling data during conversion.
Almost as bad as the poor targeting with the BSP Geometry system which dosen’t always Pick up every single face of BSP Geometry
when converting it into a static mesh. It dosen’t always convert every face properly…
So there are issues and limitations in the engine. (especially with the BSP Geometry) but that’s just one example I found when using the engine.