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name: visualization-and-export description: "Guides Nerfstudio viewer, evaluation, rendering, camera-path, point-cloud, mesh, camera, and Gaussian Splat export workflows from saved config.yml artifacts." disable-model-invocation: true metadata: disco-role: operating license: Apache 2.0

Visualization and Export

Use this route after a run has a saved config.yml, or when the task asks for viewer, metrics, rendering, point clouds, meshes, camera poses, or Gaussian Splat exports.

What this route covers

• ns-viewer --load-config CONFIG.yml for visualizing a completed run.
• ns-eval --load-config CONFIG.yml --output-path metrics.json for average metrics and optional render outputs.
• ns-render camera path, spiral/interpolated, or dataset rendering command planning.
• ns-export subcommands: pointcloud, tsdf, poisson, marching-cubes, cameras, and gaussian-splat.
• Preflight checks for config paths, output locations, remote viewer ports, checkpoint artifacts, normal/depth/RGB output names, and GPU/memory risk.

What this route excludes

• Data conversion and transforms.json validation: use data-preparation.
• Training command construction and resume behavior: use training-and-configs.
• Custom model/dataparser packaging: use api-extension.

Read/run these bundled files

• references/workflows.md for viewer/eval/render/export command recipes.
• references/api-reference.md for relevant Python classes and functions.
• references/troubleshooting.md for viewer, checkpoint, metric, export, and memory failures.
• scripts/check_artifacts.py to validate config/output path readiness without loading a model.
• scripts/check_viewer_config.py to preflight viewer ports and config paths without starting the service.

Safe workflow

1. Locate the saved config.yml from the completed run.
2. Verify that referenced checkpoint and dataset artifacts still exist.
3. Choose the output action: viewer, eval, render, or export.
4. Preflight paths and ports using bundled scripts.
5. Run the selected command only after confirming GPU/memory/time and output directory expectations.