USD Assets

xforms_nested

weird_matrix_transform

simple_transform

scopes_and_xforms_nested

subdiv_loop_triangles

timeCodesPerSecond_48

timeCodesPerSecond_24

timeCodesPerSecond_128

timeCodesPerSecond_101

timeCodesPerSecond_100

timeCodesPerSecond_1

timeCodesPerSecond_-1

start_end_timeCodes_swapped

start_end_timeCodes_superset

start_end_timeCodes_subset

negative_start_end_timeCodes

missing_start_end_timeCodes

missing_startTimeCode

missing_endTimeCode

large_start_end_timeCodes

multiple_root_prims_with_defaultPrim

inherit_and_specialize

sublayer_parent_folder

sublayer_invalid

sublayer_child_folder

_stage

_child_stage

reference_prim_in_same_file

reference_prim_in_other_file

_stage

reference_same_folder

reference_parent_folder

reference_invalid

reference_child_folder

_stage

_child_stage

payload_same_folder

payload_parent_folder

animated_cube_translation

TextureCoordinateTest

RoughnessTest

SublayeredInternalReferenceTest

ReferencedAssembliesWithInternalReferencesTest

InternalReferenceTest

ExternalReferenceBadTargetTest

Environment

hardware.shading

hardware.modeling

InternalReferenceUnencapsulatedPrototypes

InternalReferenceEncapsulatedPrototypes

washer

bolt

NormalsTextureBiasAndScale

basic_flatten

basicTextured_flatten

USD Assets Working Group

This repository contains examples of USD assets provided under the umbrella of the ASWF USD WG. Our objective is to foster information exchange within the USD community regarding USD asset import/export, asset structure, testing, and schema design. The overarching goal of this group is to bolster the U of USD.

The GitHub repository is only half the story: much of the value this working group provides is in the monthly sync where folks present schema, discuss asset/pipeline problems, and share plans for this repository — please consider joining!

What’s in this Repo?

The repository is roughly structure into three buckets: documentation, test assets, and full assets.

Documentation: A collection of markdown docs and educational assets designed for education and common practices for asset design.

Test Assets: Test assets are intended to be used as unit tests and include docs and screenshots. Correct and intentionally malformed assets are included in this collection. Schema-specific assets are designed to aid developers in correctly handling various USD schema. It’s often unclear exactly how a specific schema should be imported or exported based on the schema docs alone and the unit tests provided by the schema typically don’t include written descriptions of intent or reference images to show how a given asset should appear.

Full Assets: The full_assets folder contains examples of assets that you might find in the wild, in terms of their structure, but are still limited in terms of file size. The largest “full asset” at the time of this writing is 30mb.

Contributing

If you’d like to get involved to contribute, discuss schema, or just generally talk about USD assets, please reach out on slack or join our monthly sync:

Submitting a New Asset

Before submitting, take a look at an existing asset. A well formed example should include a read me doc with license, a screenshot and comments on how the asset is intended to be used and common issues to avoid.

A minimal schema test asset should include one representative asset per USD schema, with qualitative & quantitative descriptions, along with screenshots of what the asset should look like when correctly imported and exported. In addition, the readme page should offer high-level guidance on round-trip concerns or common issues specific to the schema.

Why ASWF USD Assets and ASWF DPEL Assets?

The Digital Production Example Library (DPEL) is for production assets of all data formats, where the USD Assets group is purely for USD assets, which are explicitly small and/or educational (very much NOT production assets).

Even Moar USD Assets

The USD Assets repository is limited to small assets designed for testing, validation, and learning; the external links we’ve collected below are larger assets more representative of something in a real production, which can be useful for scale testing or learning how a large pipeline is designed.

If you have suggestions for this list, please open a GitHub issue and share a link!

Notable Asset Stores with USD Content

Tutorial Assets, Blogs & Videos

Licenses

Each asset has a license declared in the readme, typically CC0 or something highly permissive. Everything else is provided under the repository license.