Print at Dec 16, 2025, 9:08:53 AM

Posted by Puybaret at Mar 23, 2023, 11:11:55 AM
Re: Process for orthographic, outlined, sectioned, images.
Thanks for your clear video and suggestions.
A 3D wall is exported at OBJ format as it's created in Sweet Home 3D, i.e. it's divided in two parts along its length to handle different materials for each side and it's cut along each window hole.

The two 3D walls you show in the first part of your video must come from two different walls in the plan. Some users could argue that if they created two walls on purpose then they would like them to appear as two walls in OBJ export.

Optimizing the internal building of 3D walls would require a lot of work on the Wall3D class which is already complex and probably even more work on the internal handling of faces and how they are exported in OBJWriter class which actually handles only triangles at the moment.
Maybe I could remove the faces at the place where walls join, but it's not so interesting because this would make the Wall3D class more complex with no visual benefit for Sweet Home 3D users. I would prefer to add support for round windows in round walls.
Sorry if I can't say yes to all your proposals.
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Emmanuel Puybaret, Sweet Home 3D creator