print-usd

Documents

Inspect and print USD scene hierarchy using the wu CLI. Use when the user wants to examine a USD file structure, list prims, show prim types, variants, API schemas, collections, custom token attributes, query a specific prim, limit traversal depth, or get scene statistics for .usd/.usda/.usdc/.usdz files.

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Print USD

Inspect USD scene hierarchy and prim metadata with wu print-usd.

When to Use

Use when the user wants a quick tree view of a USD asset.
Use when the user needs prim paths for rendering, material binding, filtering, debugging, or follow-up CLI commands.
Use when the user asks for prim types, variants, API schemas, collections, custom tokens, active-only traversal, depth-limited output, or statistics.
Use flatten-usd when the user wants to resolve composition arcs from a .usd, .usda, or .usdc stage, not merely inspect the composed stage.

Limitations

Very large scenes can produce thousands of lines. Prefer --max-depth, --start-prim, --query-prim, or --stats for focused output.
--query-prim requires an exact prim path.
Output is textual inspection only; it does not modify the USD file.

Prerequisites

Activate the repo Python environment and confirm wu is on PATH.
Ensure the input .usd, .usda, .usdc, or .usdz file exists.
USD Python bindings must be available in the environment.

Instructions

Start with a shallow overview for unknown scenes.
Add --stats for counts or --max-depth for large assets.
Add --show-types before choosing render, material, or physics targets.
Add --show-all only when the user needs all metadata.
Use --query-prim for a specific prim path and report whether the prim was found.
Return useful prim paths and suggested next commands.

Command Reference

wu print-usd <usd_path> [OPTIONS]

Option	Description
`--start-prim`, `-p`	Start traversal from a prim path.
`--show-types`, `-t`	Show prim type names.
`--show-variants`	Show variant set selections.
`--show-api-schemas`	Show applied API schemas.
`--show-collections`	Show collections and their includes.
`--show-custom-tokens`	Show custom token attributes.
`--show-all`, `-a`	Enable all metadata display flags.
`--active-only`	Show only active prims.
`--max-depth`, `-d`	Limit traversal depth.
`--no-info`	Hide the stage information header.
`--stats`, `-s`	Show scene statistics.
`--query-prim`, `-q`	Show detailed information for one prim.
`--verbose`, `-v`	Enable debug logging.

Common Workflows

# Basic tree and stage header.
wu print-usd scene.usd

# Types and variants for the top three levels.
wu print-usd scene.usd --show-types --show-variants --max-depth 3

# Metadata-rich inspection.
wu print-usd scene.usd --show-all --active-only

# Focus on a subtree.
wu print-usd scene.usd --start-prim /World/Geometry --show-types

# Query one prim.
wu print-usd scene.usd --query-prim /World/Geometry/mesh1

# Summary counts.
wu print-usd scene.usd --stats

Output Format

Report:

Command executed and input path.
Whether output was full tree, subtree, statistics, or a prim query.
Important prim paths, types, active/instance state, collection membership, or counts relevant to the user's goal.
Suggested follow-up command when useful, such as render-usd --focus or flatten-usd for .usd, .usda, or .usdc sources.
Any error cause, including missing file or missing prim path.

Troubleshooting

Symptom	Cause	Fix
USD file not found	Path is wrong or relative to a different directory.	Use an absolute path or rerun from the expected working directory.
Prim not found	`--query-prim` path is not exact.	Run a shallow `--show-types --max-depth` listing and copy the exact path.
Output is too large	Scene has many prims.	Use `--max-depth`, `--start-prim`, `--query-prim`, or `--stats`.
USD loading error	Missing USD bindings or unresolved asset issue.	Activate the repo environment and inspect the asset dependencies.