How to generate modern rendering demo's mesh chunk.

In the demo 'modern rendering in metal', I saw that you split the bistro 3d model into mesh chunks.

Can you tell me which algorithm is used here? kmeans or others?

Thanks.

The model data uses kmeans. Specifically, we used this open source mesh optimizer by Arseny Kapoulkine

How to generate modern rendering demo's mesh chunk.
 
 
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