thank you very much

Is there a manual for this plugin??

There are sites that offer free models, that are monochrome. Maybe your model comes from such a site.

Over the years I have imported 100'2 if not 1000'2 of models without problems.

choose a higher resolution image?

You can download a FREE installable version here - https://sourceforge.net/projects/sweeth ... t/download

Wow, what a great job. This is the start of a very flexible tool.

I didn't have time to give your plugin a very thorough workout, but it looks promising.
There are a few details I notice:
- A gap of 0.1 cm is very small. Maybe realistic, but it shows doors and drawers as one piece. I suggest a ...

Isn't it sad that the owner of this site isn't capable of correctly posting images??

Easiest solution might be to create a new level at the same elevation, and place wall and door on that level, then make the level invisible when necessary.

You're not the first to have this idea...

https://sourceforge.net/p/sweethome3d/d-models/330/

Scroll down to find the most complete set of roof parts.

@Daniels
I completely removed SH3D, and after several attempts was able to install it from the MS app-store. Version: 7.6.2 MS Store 1521.

From Github I downloaded the Plugin Manager v1.5.3 and installed it. I installed my most used plugins - now it works!

However, the Yafaray plugin cannot be ...