I have an app that uses ThreeJS where the user can visualize 3D models and some data. I would like to know when a user modify/edit some properties of a 3D object in ThreeJS (say color, position, or userData), what is the good practice on how to save the data ? Option 1: Is it better to make a file…

[NEMINES] saving data about 3D objects in GLB file or in Database? mongodb, amazon-s3, three.js asked by NEMINES on 11:34PM - 31 Oct 22 UTC

I have a similar situation and elected for model + data in db. The advantage is in reusing the same glb in several objects (for caching and performance) and updating a single model updates all derivatives.

Thanks for your input Peter, So if I understand correctly, one option (most likely the best option) is to keep the model untouched, and store all relevant variables in DB. If we take an example, we would have a glb model with many meshes, where each mesh would have a unique ID stored in UserData (…

Hmm, many meshes in one .glb? Might not be the most flexible, or efficient for loading over a network. Would need to know more about your application…

The glb would contain somewhere around 50 to 100 meshes (different meshes so instancing is not an option…). The total glb file size when compressed would not exceed 5MB. My worry is not loading the model but how to keep track of the user changes ? It seems to me that it’s tedious to keep track of a…

Why lumping all your meshes into a single glb?

Not for a specific reason. Because it is possible. What would be the alternative ? have many glbs, one glb per mesh ? The question remains, do you edit the glb directly (overwriting the old one or creating a new one in the storage service) or do you write the edits into the DB, leaving the glbs unt…

All depends on the use scenario. I maintain trinityjs ( trinityjs.com ), a server for serving .glbs. My biggest customer make children’s beds, that are modular. In that scenario it makes sense to have everything in separate .glb’s (containing one or more meshes) that can be streamed to the client dep…

Hi Nemines, I am interested in exactly what you are describing! Did you manage to create a download onto computer/database of the customised glb model like you described? I would love to know how you did it/get some of your insights into how I can do the same? Thank you!

Hi EatEddy, We have opted for the option where we save one mesh per glb into a storage service. But when it come to metadata specific to that mesh, we store this data into a DB. The link between the storage service and the DB is the unique ID of the mesh (PK). Hope this helps

Saving data about 3D objects in new GLB file or in Database?

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Nemines October 31, 2022, 11:36pm 2

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Saving data about 3D objects in new GLB file or in Database?

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