Render same mesh several times

Questions
1

Hello. I am developing an application for visualizing BIM models.

The model is a single mesh, I control colors and visibility using vertex buffers (position buffer does not change, visibility is controlled by a separate buffer).

I have a desire to render a mesh several times but with different vertex buffers (colors and visibility) as shown in the picture.

image
image858×277 55.4 KB

I would like to ask about the best way to implement this.
I read about View, Viewports, Multiview and to be honest, I got a little confused.

Basic requirements:

  1. Ability to change vertex buffers separately.
  2. Ability to use multiple canvases (with different sizes).
  3. Perfomance and efficient use of memory (using one mesh).
2

To me, if vertex buffers are different, then it should be a different mesh.
But grouped by vertex buffer, is something like thin instances would be usefull? Thin Instances | Babylon.js Documentation

Also, how many time do you want to render these meshes? If it’s a couple times, I’m not sure it’s worth trying to get more performant.
If it’s hundred or thousand of times, then thin instances might be usefull.

And here is a bunch of ways to improve rendering performance : Optimizing Your Scene | Babylon.js Documentation

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