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Re: Create a solid Shape
Generally you create 'weird' shapes by resizing and combining basic shapes like box, cylinder, triangle etc. You can make sides invisible if they are in the way or invisible because they are 'inside' another shape. My DodecagonShapes library offers many other shapes you might find useful.
You can also use walls and rooms and export/import these. That allows you to create shapes using curved walls. After import you can adjust the height. If you use a room to create a shape then make sure you un-check the ceiling before export and make sure you do this on a extra level that has an elevation >0. The floor thickness of that will be the height of the created object but you can still change it after import.
Another way to get other shapes is to find a model that has that shape as a part of it. Make all parts invisible except the part you want to extract. Export/import and you have that part as a new object.
You can select multiple shapes and export them together, after import you have a single object in the created shape. Of course you can include and combine shapes that you created with any of them mentioned methods above.
If you want a single material name for that combined object you can edit the obj and mtl files: in the object file change the material name of the first occurrence of "usemtl <name>' to the name you want. Remove all lines starting with 'g ' and 'usemtl ' except the first occurrence (the two lines at the top after the description lines). Edit the mtl file and remove all black starting with 'newmtl <name>" except the first one. Set the name after 'newmtl' to the name you used in the obj file.
Of course you can also create objects in another program like Blender and export it as obj file. This you can import in Sweet Home 3D.
If you can show us an image we can advise you better. Upload an image to an image host like mediafire or imgur and post the download url in your forum post.
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Re: Create a solid Shape
Hi, Thank you for your detailed reply.
So, I added a new level, then drew the shape I wanted with the wall tool. I then double clicked inside the shape with the wall tool. I deselected the display ceiling made the colour dark grey and then selected the item and exported it to OBJ. When I then imported the OBJ using import furniture it came back in exactly the same and not solid.
Am I doing something wrong?
The shape really needs to be the whole outline of the building and then made solid if possible.
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Re: Create a solid Shape
What do you mean by 'solid'? An exported/imported room IS a solid object. I'm not sure what else you expect or what you need.
ETA I looked at your file. You exported both walls and room. Select only the room and export that. After import you can adjust the height to a solid block with the height of the walls. That what you are looking for?
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[Edit 1 times,
last edit by Keet at Oct 20, 2025, 4:05:26 PM]
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Re: Create a solid Shape
Why do you want the rooms as solid objects?
Keeping them as room objects has advantages that 'normal' objects don't have: easy to recalculate the surface when you moved a door or wall and you can punch a hole with a staircase.
If you really want floors as solid objects then wait with exporting until you are finished with your project and only then export. Leave staircases visible but don't select them, the exported room will have the hole for the staircase after import.
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Re: Create a solid Shape
It is not the room I need Solid, it's the outline of the building, but only when there are some awkward shapes. if it has square lines then the wall tool is fine.
The only down side to this is where there is a window or door I then have to leave a gap and then draw those sections with the wall tool.
It does seem a bit strange I know but I just needed an easy and quicker way of making solid objects. I used to use Solid Works and with that you could draw whatever you liked and then extrude it.
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Re: Create a solid Shape
Actually I retract it, it doesn't work how I need it to because once I have re-imported it, I can't see it properly to add the wall sections so I can drop a door or window in.
