How to get the true scales of normalized 3d assets in asset-harvester?

Omniverse Core Platform NuRec
1

I noticed that insertion and harmonization have been performed in the article `Asset Harvester: Extracting 3D Assets from Autonomous Driving Logs for Simulation`, since the harveted 3d assets are normalized, hot to get the related true scales? I tried to insert a harvested vehicle gaussian ply in camera view, the size of vechile in rendered image mismatched which in original image. Thank you, looking forward for your reply.

2

The harvested gaussians.ply is deliberately in a normalized, object-local coordinate system. It is not a meter-scale scene object by itself.

For supported NuRec integration, do not derive scale from PLY bounds. Use the supplied pipeline:

python -m asset_harvester.utils.orient_gaussians_for_nurec \
  --input-dir outputs/ncore_harvest \
  --output-dir outputs/ncore_harvest_nurec

python asset_harvester/utils/generate_external_assets_metadata.py \
  --input-dir outputs/ncore_harvest_nurec

Then package that directory using NuRec’s external-asset workflow.