Conversion of Gsplat (.ply) model into USD for Nvidia Isaac Sim

[jj7258]

Hello,

I’ve enjoyed exploring your repository and noticed you successfully converted your Gaussian splat model (.ply) into USD for Isaac Sim. I’ve tried the same on my end but haven’t been able to get a working USD output. Could you please share the tools, scripts, or detailed steps you used to generate the USD (or USDC) asset from your Gaussian splat representation?

Thanks in advance!

[j3soon]

Hi @jj7258, you can use any method that can extract mesh from 3dgs such as SuGaR, then you can convert that mesh into USD format.

In the poster demo, we simply reuse a mesh we extracted before using Nerfacto for simplicity.

Related: #6 (comment)

Update: If you want higher mesh quality, consider specialized GS methods such as PGSR, which train the 3DGS model to be aware of mesh constraints, resulting in better mesh outputs.