Requirements

Code	Message	Rule
AA.002	Asset must use only supported file types	SupportedFileTypesChecker
AA.001	Asset references should use anchored paths	AnchoredAssetPathsChecker
AA.OV.001	Texture UDIMs are not supported in USDZ files in NVIDIA Omniverse	UsdzUdimLimitationChecker
AA.003	Asset paths should use forward slashes for cross-platform portability	PortableAssetPathChecker
UN.001	Stage must specify upAxis to define the orientation of the stage	StageMetadataChecker
UN.002	Stage must specify metersPerUnit to define the linear unit scale	StageMetadataChecker
VG.002	Boundable geometry primitives should have valid extent values.	ExtentsChecker
VG.010	Do not subdivide meshes with Normals.	SubdivisionSchemeChecker
VG.007	Mesh geometry must be manifold	ManifoldChecker
VG.009	Use indexed primvars when values are repeated	IndexedPrimvarChecker
VG.018	Mesh topology should be without unused vertices, edges, or faces.	UnusedMeshTopologyChecker
VG.019	Faces should have non-zero area.	ZeroAreaFaceChecker
VG.016	Each vertex position should be unique	WeldChecker
VG.014	Mesh topology must be valid	ValidateTopologyChecker
VG.011	Only include primvars that are actively used	UnusedPrimvarChecker
VG.027	All non-subdivided meshes must have normals.	NormalsExistChecker
VG.028	Mesh normals values must be valid to produce correct shading.	NormalsValidChecker
VG.029	The winding order of faces in a mesh must correctly represent the orientation (front/back) of the face.	NormalsWindingsChecker
VG.MESH.001	All geometry shall be represented as non-subdivided mesh primitives using the UsdGeomMesh schema.	ContainsMeshChecker
VG.025	Geometry shall be defined as such that the asset is correctly positioned and oriented at the origin (0,0,0).	AssetOriginPositioningChecker
HI.004	Stage must specify a default prim to define the root entry point.	DefaultPrimChecker
VM.MDL.001	MDL material source assets must be properly referenced and accessible to ensure material loading and rendering.	MaterialPathChecker
VM.BIND.001	Material bindings must use appropriate scope to ensure proper material assignment and inheritance.	MaterialOutOfScopeChecker
VM.PS.001	Material attributes must comply with the UsdPreviewSurface specification to ensure consistent rendering and viewer compatibility.	MaterialUsdPreviewSurfaceChecker
VM.MDL.002	MDL Shaders must use standard OpenUSD shader source attributes to ensure compatibility.	MaterialOldMdlSchemaChecker
RB.005	Rigid bodies cannot be part of a scene graph instance.	RigidBodyChecker
RB.003	Rigid bodies have to be UsdGeomXformable prims.	RigidBodyChecker
RB.009	Rigid bodies have to be UsdGeomXformable prims without skew matrix.	RigidBodyChecker
RB.COL.004	The collision shape scale must be uniform for the following geometries: Sphere, Capsule, Cylinder, Cone & Points.	ColliderChecker
JT.002	Targets set to Body0 and Body1 relationships must exist.	PhysicsJointChecker
JT.003	Body0 and Body1 relationships must not have more than one target.	PhysicsJointChecker
JT.ART.002	Articulation roots cannot be nested.	ArticulationChecker
JT.ART.004	Articulations are not allowed on static bodies.	ArticulationChecker
RB.007	Rigid bodies _or_ their descendent collision shapes should have a mass & their other inertial properties explicitly specified.	MassChecker
VG.035	ParticleField3DGaussianSplat prims must satisfy schema and data consistency rules required for interoperable 3D Gaussian splat assets.	GaussianSplatSchemaChecker
HI.001	Prim hierarchy must have a single root prim.	HierarchyHasRootChecker
HI.003	The root prim of the asset hierarchy must be transformable	RootPrimXformableChecker
VG.RTX.001	World space bounds must not exceed RTX limit.	AlmostExtremeExtentChecker
VG.020	The values of the points attribute must not exceed the limit at which a given precision can be represented using 32-bit floats.	PointsPrecisionChecker
UN.006	Stage must specify upAxis = “Z” to define the orientation of the stage	UpAxisZChecker
UN.007	Stage must specify metersPerUnit = 1.0 to define the linear unit scale	UnitsInMetersChecker