Making instances of an imported mesh

Questions
1

Hello.
I’m trying to create instances of a mesh I imported.
On my local project I’m successfully importing a mesh that was made in blender, but when I try to create instances of it nothing happens.
The mesh is really simple and similar to a block and I’ll need to display hundreds of them at once which is why the instancing is critical for our project.
The objects do get created and I can print them out to the console, but the mesh is not being displayed.

I made a playground where you can see this behavior.
I cannot create instances of the rabbit mesh just like I can’t create instances of my own mesh in my local project.
The tree mesh and simple blocks work just fine on both the playground and my local project.

https://playground.babylonjs.com/#UB332R#2

Are there certain criteria for a mesh to be able to be made an instance of?

2

Hi Stephan,

You just need to create an instance from the right mesh (which is not always the first in the array). It all depends on the file you are loading:

https://playground.babylonjs.com/#UB332R#3

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3

Removed boxes and scaled rabbit to make instances of imported more obvious.

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4

Hi gang. There’s mesh.instantiateHierarchy() too… https://www.babylonjs-playground.com/#5NIBE1#10

I don’t know much about it, but it sounds like a “tree-walking instantiator”… which somehow sounds important. :slight_smile: It might be used mostly for root-less models… not sure.

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5

If you use loadAssetContainer, you can use the new function that @deltakosh added instantiateModelsToScene to duplicate all of the loaded models. This will duplicate skeletons, animation groups, etc. so that you can animate the duplicates separately.

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6

Thank you @RaananW @JohnK @Wingnut @bghgary all of your posts made me understand what is going on better.

Using the second mesh from the array solved my issue like @RaananW suggested.
I’ll look more into mesh instantiateHierarchy() and the LoadAssetContainer as well :slight_smile:

Seeing how supportive this community and devs are makes me really excited to dive deeper into babylon. Hopefully I’ll also be able to also help someone down the road.

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