The file size is too large and there is no instancing

[RyugaRyuzaki]

• When converting to .bim the file size is too large. The solution can be to use Flatbuffer for file compression(https://flatbuffers.dev) and protobuffer for file transfer over HTTP/2x networks./(https://github.com/protocolbuffers/protobuf).
• The two objects have the same geometry and material but different coordination and rotation (exam: 2 chairs) but are still listed in the file. Is there a way to replace it with instancing? (image below)
  

[paireks]

There is a way for mesh instancing: you create a mesh once (e.g. a mesh representing that chair) and then you refer to that mesh of the chair multiple times as a seperate elements. This way even if you have 1000 chairs you can have 1 mesh and 1000 elements.

Small update to that is the fact that I was experimenting with some mesh deduplication algorithm and developed some solutions for that here: https://github.com/paireks/meshmeshmesh. These algorythms can help to detect duplicate meshes and then save them once and then refer to them multiple times. There are some pros and cons of that solution, it's still better to save the deduplicated elements at start if possible rather than preprocess it later like that, but just wanted to mention this method as well.

[Isaina]

Can you add on for this mesh mesh so you can add mesh and system could detect element like wall , chair etc

[paireks]

@Isaina, nice idea. It would require some machine learning probably. Will think about it.

[Isaina]

Small LLM model or similar and would be great to convert dotBIM to IFC Best regards, Ivo Sent using the mail.com mail app

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On 7/6/25 at 12:27 PM, Wojciech Radaczyński wrote: paireks left a comment (paireks/dotbim#40) @Isaina, nice idea. It would require some machine learning probably. Will think about it. -- Reply to this email directly or view it on GitHub: #40 (comment) You are receiving this because you were mentioned. Message ID: ***@***.***>