I hope the furniture editor will be incorporated into the main program.

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Well, if not, the application needs a complete rebuild. You can’t see the the icons, saving takes forever and it needs additional functionality such as deduplication in my opinion.

I said it a couple years ago: the furniture and texture editor should be built in for user convenience.

BTW I have 9000 clips in my library, a slow computer will take a few minutes to open, a SDD computer will open a lot faster. I don't think you can choose fewer models just because they open slowly.

On the contrary I think a lot of features related to the model library must be enhanced.

One way to make it better for everyone is to not load the furniture library by default every time you start it, but you can choose to load all the libraries during the loading process, or load the libraries every time you start it.

Sorry, but then you are doing something wrong. How many of those have you ever used? How many will you never use? For textures I can understand a large set but for models you should have multiple libraries with specific sets of models. Look at the libraries I offer on dodecagon.nl. Small libraries with a specific set of furniture.
One of the great advantages of libraries is that you can selectively add and remove libraries to keep the total number of models and textures to only those that you might need for a project. THAT is what is missing in Sweet Home 3D: Selectively load/unload libraries in the catalog WITHOUT having to manually remove libraries and having

Which ones? I'm interested because I can think of a few too but would like to know what others would like to see add/enhanced in the Furniture Library Editor.

I can say there are the following: students who do scene restoration and improvement, people who count the area before buying a house, people who sell lab equipment, detectives, students who study movie design subplotting, people who repair their own big houses in the countryside, and people who match the on/off diagrams for the smart home control in their own house. And basically nothing else~

As I said before, there are a few very very powerful and almost free online decoration design rendering sites in China. sh3D will never surpass them, and SH3D's content reaches about 1% compared to theirs. So in this case, who is still in SH3D is very critical.

For example the preview of seamless textures, right now the process is not previewable. You have to actually lay it on a flat surface if you want to see the effect, too much trouble. Suggest where the texture preview is, one is full size display, one is 3X3 display

For example, expanding the format. It is to take the SH3D file and put it into the library as an object to be called. The benefits are many. First of all, it can save a lot of space in the material library, especially trees and other things that take up a lot of space. There is also the whole set of furniture directly into the. Don't want you delete is, very save time. This function is also very important!

For example, textures can't handle colors in real time. When I have a green marble texture, can I get a red marble texture, purple, black, white with a few mouse clicks.

Not everyone knows a lot of know how like the masters in the forums. For newbies, they also won't learn or care in which place to switch material library, which material library ~ 99.9% of them will not be on this forum.

I agree that language is a problem, especially with languages that are difficult to translate with online translation software. Your language is one of the very difficult ones to translate because of a different alphabet and different order of words.

Yes, there are many different types of users. But I don't think Sweet Home 3D is for one-time users. It is too complex for that. Those users are better off with a simple online solution.

That is a very good idea! A preview with an additional 3x3 preview will show how the end result should look. However, there is an additional problem here. The object surfaces as defined in the OBJ file have definitions for how a texture is orientated on the surface (face). A texture is displayed according to those definitions, you can't get around that, Currently we can scale, shift, and rotate a texture but in many cases the difinition is not correctly overruled. Together with texture selection a better system to manipulate the texture orientation and stretching is needed.

You can do that! You can "Select all on all levels" (might need the Advanced edit plugin, I am not sure). Then you can export your complete project to an OBJ file and import it into a library (or use it as just the OBJ/MTL file).

True. It is because Sweet Home 3D only supports a small set of the MTL properties for colors and textures:
Ka and Kd are supported but the specular color Ks is not supported.
map_Kd is the only property supported for textures. It is a simple reference to an image that is used as the texture. Sweet Home 3D does nont support the other texture properties (map_Ka, map_Ks, map_Ns, map_d) that allows textures to become real life like. That is why you can't set a different color for the same texture, the texture and color components are not split.
I too would really like to see support for the other texture properties but this is very difficult to implement. I am not even sure it can be done with Java. It does make the 3D processing a lot heavier.

No, you're not understanding what I'm saying. What I said is much more advanced. You can think of it as a data structure that uses many low-level parts to form a complex high-level object. For example, it turns out that a tree takes 20MB of OBJ storage, and in this way you can compress it down to 0.5MB.

I would really like to know what the trick behind that is. Schrinking to 1/40 of the original size is huge. Sweet Home 3D is not the very best considering OBJ size. Take for example the Sycamore tree from the Scopia library. It is created in Blender and is around 7.6MB. Export it from Sweet Home 3D and the resulting OBJ file is 18.8MB. Efficient? Not really and that is putting it mild. Import that export in Blender and export it again and the size shrinks back to 7.6MB. But what you mention is something entirely different.
You may have read in one of my other posts that, besides developing 3D models, I work mainly with very large projects. And those are causing problems in Sweet Home 3D because of their size. Having the tools to considerably shrink objects is very welcome.

You can understand it like this:
This is an example of separating an object, I'm going to draw a luxury table from the French court, consisting of a large table board and 6 table legs, the large table board is 1MB, each table leg is 1MB. if you export the OBJ directly, then naturally it's 7MB. or you split it up and lay it out in a SH3D file 1 large table board plus 6 table legs. You save the file and see it's 2MB because those 6 table legs are the same and add up to a 1MB.
The same big tree why take up a lot of file space, because he has thousands of leaves, each leaf is very large, let's break it down, a trunk plus thousands of the same leaves. 0.5MB (this is a bit exaggerated)

I understand and recognize the principals like you described. Im a professional developer and the idea is similar to object oriented programming.
But that is not something that can be done by using OBJ/MTL files. The OBJ file format has no mechanism to define a part ("object") and then use references with coordinates to display that part ("instances").
That leaves converting to another format. For example converting OBJ to gLTF gives a huge reduction in size. I think the conversion does something similar to what you described. I'm going to try that for display of one my large projects on a web page. The disadvantage over the Sweet Home 3D html5 export is that you loose the options for level choices and 'walking' through the project. But at least it should load and move.

Maybe you haven't understood what I mean.
SH3D's save file format is SH3D, as long as the material library editor can put SH3D in it. Then it's all solved. It shouldn't be too hard.

That I do not understand. Do you mean a Texture Library with "material library"? A Texture Library is just a zip with a collection of texture images. Putting in a sh3d file makes no sense. I guess you mean something different.

@keet the concept which YGYL is trying to describe is the same of grouped furniture. SH3D is already capable of handlig this, but lacks the ability to copy this group in the catalog for future use.
Of course you can export the group as a single object and import it in the catalog, but this will be no longer editable and will take more space, since all vertex coordinates have been copied in the new model.
Furniture groups instead don't take up space, because they are just a list of references to existing models along with spatial information about where they should be placed in the plan.
Even in the case where this new kind of object would camepackaged in a furniture library along with vertex data, there is a chance to save space. Think about a group made by a table with 6 chairs: you could have vertex data for the table alone and for a single chair, then the group will say to duplicate the chair model around the table, but this happens at runtime, so only one chair model is actually taking space on the disk.

@keet the concept which YGYL is trying to describe is the same of grouped furniture. SH3D is already capable of handlig this, but lacks the ability to copy this group in the catalog for future use.
Of course you can export the group as a single object and import it in the catalog, but this will be no longer editable and will take more space, since all vertex coordinates have been copied in the new model.
Furniture groups instead don't take up space, because they are just a list of references to existing models along with spatial information about where they should be placed in the plan.
Even in the case where this new kind of object would camepackaged in a furniture library along with vertex data, there is a chance to save space. Think about a group made by a table with 6 chairs: you could have vertex data for the table alone and for a single chair, then the group will say to duplicate the chair model around the table, but this happens at runtime, so only one chair model is actually taking space on the disk.

I have one project in progress where this would have an incredible impact: a stadium with 10.000+ seats. I already optimized this partly by grouping seats and running them through Blender to merge groups and then repeat the same for rows. Imagine the impact of defining a single seat and 10.000+ positions instead of 10.000+ seats! The project would shrink from 300+ MB to just a few MB's

...Including making a lamp with multiple light sources,...

YES! That is a wish I have mentioned before. A light source should be connected to a material and not to the object. I don't think an implementation would be too difficult but there is a huge problem: backward compatibility with the current light sources. And I don't know how photo renderers handle the light sources, there might a problem with light sources connected to a material and not the object.

I'm not saying the light source should be attached to the material. Now such light sources are also wanted. It's just that adding light sources to furniture is a pain in the ass and too much of a hassle for furniture library creators. That's why not many people in the world are willing to do that.

How is this difficult? In the Library editor you set a material name for the material that you want to act as a light. That's it. Nothing more to it.

About the power setting for each light source individually:
This was discussed before here: https://sweethome3d.com/support/forum/viewthread_thread,12755#60154 (Some remarks in that thread are no longer valid. Back then you had to manually edit the properties file in the zip to set the light source. That is no longer needed.)

I just carefully looked at the web link you gave. And downloaded the actual test and figured out how it works. But this method is not really a glowing material. He is just a white lighted white board. Even according to this method can not do the effect of the TV screen. It's not even close to a real light-emitting material.

I agree with you when you say “add a switch for white light source or not under gloss in the material modification options”. It's better than nothing, and Puybaret is sometimes too obsessed with “simplicity”. Puybaret is sometimes too obsessed with “simplicity” and ignores a lot of more critical real user needs.

There's also the transparency modification you mentioned in the link above. I mentioned it many years ago if I remember correctly. I don't know why sweethome3d hasn't added this important feature after all these years ~ it should be very simple to implement!

Already 10-15 years ago, I suggested to Puybaret to split the Preferences section into two: Standard and Advanced. These days, I still think that's a good idea, and maybe even more so than all those years ago.

I agree that some plugins should be integrated into the program (provided he original developers agree). I can't live without AdvancedEDit and a few others.

I have an immense admiration for what Puybaret has achieved these past 15 years, and I hope SpaceMushrooms continues on that path.