Hello,

My solution so far is to export to .obj and to open the model in 'VR Model Viewer', available on Steam (https://store.steampowered.com/app/8914 ... el_Viewer/)

The answer is Twinmotion2022, which is free for individuals
Sweet Home 3D model is rotated down once and exported OBJ to Twinmotion2022 to be displayed directly. And the result is much better than the Sweet Home 3D display. If the graphics card is good, it also supports ray tracing for real-time display. It also supports importing to UE4.27
I think Sweet Home 3D should get a plug-in or better support Twinmotion, that's the key.
It would be better to support Twinmotion's batch replacement function. It's better to support Twinmotion's batch replacement function, so you can quickly replace light sources in Twinmotion.