usdrt::UsdGeomNurbsPatch

Defined in usdrt/scenegraph/usd/usdGeom/nurbsPatch.h

Functions

Variables

class UsdGeomNurbsPatch : public usdrt::UsdGeomPointBased

Encodes a rational or polynomial non-uniform B-spline surface, with optional trim curves.

The encoding mostly follows that of RiNuPatch and RiTrimCurve: https://renderman.pixar.com/resources/current/RenderMan/geometricPrimitives.html#rinupatch , with some minor renaming and coalescing for clarity.

The layout of control vertices in the points attribute inherited from UsdGeomPointBased is row-major with U considered rows, and V columns.

NurbsPatch Form

The authored points, orders, knots, weights, and ranges are all that is required to render the nurbs patch. However, the only way to model closed surfaces with nurbs is to ensure that the first and last control points along the given axis are coincident. Similarly, to ensure the surface is not only closed but also C2 continuous, the last order - 1 control points must be (correspondingly) coincident with the first order - 1 control points, and also the spacing of the last corresponding knots must be the same as the first corresponding knots.

Form is provided as an aid to interchange between modeling and animation applications so that they can robustly identify the intent with which the surface was modelled, and take measures (if they are able) to preserve the continuity/concidence constraints as the surface may be rigged or deformed.

  • An open-form NurbsPatch has no continuity constraints.

  • A closed-form NurbsPatch expects the first and last control points to overlap

  • A periodic-form NurbsPatch expects the first and last order - 1 control points to overlap.

Nurbs vs Subdivision Surfaces

Nurbs are an important modeling primitive in CAD/CAM tools and early computer graphics DCC’s. Because they have a natural UV parameterization they easily support “trim curves”, which allow smooth shapes to be carved out of the surface.

However, the topology of the patch is always rectangular, and joining two nurbs patches together (especially when they have differing numbers of spans) is difficult to do smoothly. Also, nurbs are not supported by the Ptex texturing technology (http://ptex.us).

Neither of these limitations are shared by subdivision surfaces; therefore, although they do not subscribe to trim-curve-based shaping, subdivs are often considered a more flexible modeling primitive.

For any described attribute Fallback Value or Allowed Values below that are text/tokens, the actual token is published and defined in UsdGeomTokens. So to set an attribute to the value “rightHanded”, use UsdGeomTokens->rightHanded as the value.

Public Functions

inline explicit UsdGeomNurbsPatch(const UsdPrim &prim = UsdPrim())

Construct a UsdGeomNurbsPatch on UsdPrim prim. Equivalent to UsdGeomNurbsPatch::Get(prim.GetStage(), prim.GetPath()) for a valid prim , but will not immediately throw an error for an invalid prim.

inline explicit UsdGeomNurbsPatch(const UsdSchemaBase &schemaObj)

Construct a UsdGeomNurbsPatch on the prim held by schemaObj . Should be preferred over UsdGeomNurbsPatch(schemaObj.GetPrim()), as it preserves SchemaBase state.

inline virtual ~UsdGeomNurbsPatch()

Destructor.

inline operator bool() const

Boolean operator.

Returns

Return true if the contained prim is an instance of this schema using IsA, and false otherwise.

inline UsdAttribute GetUVertexCountAttr() const

Number of vertices in the U direction. Should be at least as large as uOrder.

Declaration

int uVertexCount

C++ Type

int

Usd Type

SdfValueTypeNames->Int

inline UsdAttribute CreateUVertexCountAttr() const

See GetUVertexCountAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetVVertexCountAttr() const

Number of vertices in the V direction. Should be at least as large as vOrder.

Declaration

int vVertexCount

C++ Type

int

Usd Type

SdfValueTypeNames->Int

inline UsdAttribute CreateVVertexCountAttr() const

See GetVVertexCountAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetUOrderAttr() const

Order in the U direction. Order must be positive and is equal to the degree of the polynomial basis to be evaluated, plus 1.

Declaration

int uOrder

C++ Type

int

Usd Type

SdfValueTypeNames->Int

inline UsdAttribute CreateUOrderAttr() const

See GetUOrderAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetVOrderAttr() const

Order in the V direction. Order must be positive and is equal to the degree of the polynomial basis to be evaluated, plus 1.

Declaration

int vOrder

C++ Type

int

Usd Type

SdfValueTypeNames->Int

inline UsdAttribute CreateVOrderAttr() const

See GetVOrderAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetUKnotsAttr() const

Knot vector for U direction providing U parameterization. The length of this array must be ( uVertexCount + uOrder ), and its entries must take on monotonically increasing values.

Declaration

double[] uKnots

C++ Type

VtArray<double>

Usd Type

SdfValueTypeNames->DoubleArray

inline UsdAttribute CreateUKnotsAttr() const

See GetUKnotsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetVKnotsAttr() const

Knot vector for V direction providing U parameterization. The length of this array must be ( vVertexCount + vOrder ), and its entries must take on monotonically increasing values.

Declaration

double[] vKnots

C++ Type

VtArray<double>

Usd Type

SdfValueTypeNames->DoubleArray

inline UsdAttribute CreateVKnotsAttr() const

See GetVKnotsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetUFormAttr() const

Interpret the control grid and knot vectors as representing an open, geometrically closed, or geometrically closed and C2 continuous surface along the U dimension.

Declaration

uniform token uForm = "open"

C++ Type

TfToken

Usd Type

SdfValueTypeNames->Token

Variability

SdfVariabilityUniform

Allowed Values

open, closed, periodic

See also

NurbsPatch Form

inline UsdAttribute CreateUFormAttr() const

See GetUFormAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetVFormAttr() const

Interpret the control grid and knot vectors as representing an open, geometrically closed, or geometrically closed and C2 continuous surface along the V dimension.

Declaration

uniform token vForm = "open"

C++ Type

TfToken

Usd Type

SdfValueTypeNames->Token

Variability

SdfVariabilityUniform

Allowed Values

open, closed, periodic

See also

NurbsPatch Form

inline UsdAttribute CreateVFormAttr() const

See GetVFormAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetURangeAttr() const

Provides the minimum and maximum parametric values (as defined by uKnots) over which the surface is actually defined. The minimum must be less than the maximum, and greater than or equal to the value of uKnots[uOrder-1]. The maxium must be less than or equal to the last element’s value in uKnots.

Declaration

double2 uRange

C++ Type

GfVec2d

Usd Type

SdfValueTypeNames->Double2

inline UsdAttribute CreateURangeAttr() const

See GetURangeAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetVRangeAttr() const

Provides the minimum and maximum parametric values (as defined by vKnots) over which the surface is actually defined. The minimum must be less than the maximum, and greater than or equal to the value of vKnots[vOrder-1]. The maxium must be less than or equal to the last element’s value in vKnots.

Declaration

double2 vRange

C++ Type

GfVec2d

Usd Type

SdfValueTypeNames->Double2

inline UsdAttribute CreateVRangeAttr() const

See GetVRangeAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetPointWeightsAttr() const

Optionally provides “w” components for each control point, thus must be the same length as the points attribute. If authored, the patch will be rational. If unauthored, the patch will be polynomial, i.e. weight for all points is 1.0.

Declaration

double[] pointWeights

C++ Type

VtArray<double>

Usd Type

SdfValueTypeNames->DoubleArray

Note

Some DCC’s pre-weight the points, but in this schema, points are not pre-weighted.

inline UsdAttribute CreatePointWeightsAttr() const

See GetPointWeightsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetTrimCurveCountsAttr() const

Each element specifies how many curves are present in each “loop” of the trimCurve, and the length of the array determines how many loops the trimCurve contains. The sum of all elements is the total nuber of curves in the trim, to which we will refer as nCurves in describing the other trim attributes.

Declaration

int[] trimCurve:counts

C++ Type

VtArray<int>

Usd Type

SdfValueTypeNames->IntArray

inline UsdAttribute CreateTrimCurveCountsAttr() const

See GetTrimCurveCountsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetTrimCurveOrdersAttr() const

Flat list of orders for each of the nCurves curves.

Declaration

int[] trimCurve:orders

C++ Type

VtArray<int>

Usd Type

SdfValueTypeNames->IntArray

inline UsdAttribute CreateTrimCurveOrdersAttr() const

See GetTrimCurveOrdersAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetTrimCurveVertexCountsAttr() const

Flat list of number of vertices for each of the nCurves curves.

Declaration

int[] trimCurve:vertexCounts

C++ Type

VtArray<int>

Usd Type

SdfValueTypeNames->IntArray

inline UsdAttribute CreateTrimCurveVertexCountsAttr() const

See GetTrimCurveVertexCountsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetTrimCurveKnotsAttr() const

Flat list of parametric values for each of the nCurves curves. There will be as many knots as the sum over all elements of vertexCounts plus the sum over all elements of orders.

Declaration

double[] trimCurve:knots

C++ Type

VtArray<double>

Usd Type

SdfValueTypeNames->DoubleArray

inline UsdAttribute CreateTrimCurveKnotsAttr() const

See GetTrimCurveKnotsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetTrimCurveRangesAttr() const

Flat list of minimum and maximum parametric values (as defined by knots) for each of the nCurves curves.

Declaration

double2[] trimCurve:ranges

C++ Type

VtArray<GfVec2d>

Usd Type

SdfValueTypeNames->Double2Array

inline UsdAttribute CreateTrimCurveRangesAttr() const

See GetTrimCurveRangesAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetTrimCurvePointsAttr() const

Flat list of homogeneous 2D points (u, v, w) that comprise the nCurves curves. The number of points should be equal to the um over all elements of vertexCounts.

Declaration

double3[] trimCurve:points

C++ Type

VtArray<GfVec3d>

Usd Type

SdfValueTypeNames->Double3Array

inline UsdAttribute CreateTrimCurvePointsAttr() const

See GetTrimCurvePointsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetPointsAttr() const

The primary geometry attribute for all PointBased primitives, describes points in (local) space.

Declaration

point3f[] points

C++ Type

VtArray<GfVec3f>

Usd Type

SdfValueTypeNames->Point3fArray

inline UsdAttribute CreatePointsAttr() const

See GetPointsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetVelocitiesAttr() const

If provided, ‘velocities’ should be used by renderers to.

compute positions between samples for the ‘points’ attribute, rather than interpolating between neighboring ‘points’ samples. This is the only reasonable means of computing motion blur for topologically varying PointBased primitives. It follows that the length of each ‘velocities’ sample must match the length of the corresponding ‘points’ sample. Velocity is measured in position units per second, as per most simulation software. To convert to position units per UsdTimeCode, divide by UsdStage::GetTimeCodesPerSecond().

See also UsdGeom_VelocityInterpolation .

Declaration

vector3f[] velocities

C++ Type

VtArray<GfVec3f>

Usd Type

SdfValueTypeNames->Vector3fArray

inline UsdAttribute CreateVelocitiesAttr() const

See GetVelocitiesAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetAccelerationsAttr() const

If provided, ‘accelerations’ should be used with velocities to compute positions between samples for the ‘points’ attribute rather than interpolating between neighboring ‘points’ samples. Acceleration is measured in position units per second-squared. To convert to position units per squared UsdTimeCode, divide by the square of UsdStage::GetTimeCodesPerSecond().

Declaration

vector3f[] accelerations

C++ Type

VtArray<GfVec3f>

Usd Type

SdfValueTypeNames->Vector3fArray

inline UsdAttribute CreateAccelerationsAttr() const

See GetAccelerationsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetNormalsAttr() const

Provide an object-space orientation for individual points, which, depending on subclass, may define a surface, curve, or free points. Note that ‘normals’ should not be authored on any Mesh that is subdivided, since the subdivision algorithm will define its own normals. ‘normals’ is not a generic primvar, but the number of elements in this attribute will be determined by its ‘interpolation’. See SetNormalsInterpolation() . If ‘normals’ and ‘primvars:normals’ are both specified, the latter has precedence.

Declaration

normal3f[] normals

C++ Type

VtArray<GfVec3f>

Usd Type

SdfValueTypeNames->Normal3fArray

inline UsdAttribute CreateNormalsAttr() const

See GetNormalsAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetDisplayColorAttr() const

It is useful to have an “official” colorSet that can be used as a display or modeling color, even in the absence of any specified shader for a gprim. DisplayColor serves this role; because it is a UsdGeomPrimvar, it can also be used as a gprim override for any shader that consumes a displayColor parameter.

Declaration

color3f[] primvars:displayColor

C++ Type

VtArray<GfVec3f>

Usd Type

SdfValueTypeNames->Color3fArray

inline UsdAttribute CreateDisplayColorAttr() const

See GetDisplayColorAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetDisplayOpacityAttr() const

Companion to displayColor that specifies opacity, broken out as an independent attribute rather than an rgba color, both so that each can be independently overridden, and because shaders rarely consume rgba parameters.

Declaration

float[] primvars:displayOpacity

C++ Type

VtArray<float>

Usd Type

SdfValueTypeNames->FloatArray

inline UsdAttribute CreateDisplayOpacityAttr() const

See GetDisplayOpacityAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetDoubleSidedAttr() const

Although some renderers treat all parametric or polygonal surfaces as if they were effectively laminae with outward-facing normals on both sides, some renderers derive significant optimizations by considering these surfaces to have only a single outward side, typically determined by control-point winding order and/or orientation. By doing so they can perform “backface culling” to avoid drawing the many polygons of most closed surfaces that face away from the viewer.

However, it is often advantageous to model thin objects such as paper and cloth as single, open surfaces that must be viewable from both sides, always. Setting a gprim’s doubleSided attribute to true instructs all renderers to disable optimizations such as backface culling for the gprim, and attempt (not all renderers are able to do so, but the USD reference GL renderer always will) to provide forward-facing normals on each side of the surface for lighting calculations.

Declaration

uniform bool doubleSided = 0

C++ Type

bool

Usd Type

SdfValueTypeNames->Bool

Variability

SdfVariabilityUniform

inline UsdAttribute CreateDoubleSidedAttr() const

See GetDoubleSidedAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetOrientationAttr() const

Orientation specifies whether the gprim’s surface normal should be computed using the right hand rule, or the left hand rule. Please see UsdGeom_WindingOrder for a deeper explanation and generalization of orientation to composed scenes with transformation hierarchies.

Declaration

uniform token orientation = "rightHanded"

C++ Type

TfToken

Usd Type

SdfValueTypeNames->Token

Variability

SdfVariabilityUniform

Allowed Values

rightHanded, leftHanded

inline UsdAttribute CreateOrientationAttr() const

See GetOrientationAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetExtentAttr() const

Extent is a three dimensional range measuring the geometric extent of the authored gprim in its own local space (i.e. its own transform not applied), without accounting for any shader-induced displacement. If any extent value has been authored for a given Boundable, then it should be authored at every timeSample at which geometry-affecting properties are authored, to ensure correct evaluation via ComputeExtent(). If no extent value has been authored, then ComputeExtent() will call the Boundable’s registered ComputeExtentFunction(), which may be expensive, which is why we strongly encourage proper authoring of extent.

An authored extent on a prim which has children is expected to include the extent of all children, as they will be pruned from BBox computation during traversal.

See also

ComputeExtent()

See also

Why Extent and not Bounds ?.

Declaration

float3[] extent

C++ Type

VtArray<GfVec3f>

Usd Type

SdfValueTypeNames->Float3Array

inline UsdAttribute CreateExtentAttr() const

See GetExtentAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetXformOpOrderAttr() const

Encodes the sequence of transformation operations in the order in which they should be pushed onto a transform stack while visiting a UsdStage’s prims in a graph traversal that will effect the desired positioning for this prim and its descendant prims.

You should rarely, if ever, need to manipulate this attribute directly. It is managed by the AddXformOp(), SetResetXformStack(), and SetXformOpOrder(), and consulted by GetOrderedXformOps() and GetLocalTransformation().

Declaration

uniform token[] xformOpOrder

C++ Type

VtArray<TfToken>

Usd Type

SdfValueTypeNames->TokenArray

Variability

SdfVariabilityUniform

inline UsdAttribute CreateXformOpOrderAttr() const

See GetXformOpOrderAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetVisibilityAttr() const

Visibility is meant to be the simplest form of “pruning” visibility that is supported by most DCC apps. Visibility is animatable, allowing a sub-tree of geometry to be present for some segment of a shot, and absent from others; unlike the action of deactivating geometry prims, invisible geometry is still available for inspection, for positioning, for defining volumes, etc.

Declaration

token visibility = "inherited"

C++ Type

TfToken

Usd Type

SdfValueTypeNames->Token

Allowed Values

inherited, invisible

inline UsdAttribute CreateVisibilityAttr() const

See GetVisibilityAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdAttribute GetPurposeAttr() const

Purpose is a classification of geometry into categories that can each be independently included or excluded from traversals of prims on a stage, such as rendering or bounding-box computation traversals.

See UsdGeom_ImageablePurpose for more detail about how purpose is computed and used.

Declaration

uniform token purpose = "default"

C++ Type

TfToken

Usd Type

SdfValueTypeNames->Token

Variability

SdfVariabilityUniform

Allowed Values

default, render, proxy, guide

inline UsdAttribute CreatePurposeAttr() const

See GetPurposeAttr(), and also Create vs Get Property Methods for when to use Get vs Create. If specified, author defaultValue as the attribute’s default, sparsely (when it makes sense to do so) if writeSparsely is true - the default for writeSparsely is false.

inline UsdRelationship GetProxyPrimRel() const

The proxyPrim relationship allows us to link a prim whose purpose is “render” to its (single target) purpose=”proxy” prim. This is entirely optional, but can be useful in several scenarios:

  • In a pipeline that does pruning (for complexity management) by deactivating prims composed from asset references, when we deactivate a purpose=”render” prim, we will be able to discover and additionally deactivate its associated purpose=”proxy” prim, so that preview renders reflect the pruning accurately.

  • DCC importers may be able to make more aggressive optimizations for interactive processing and display if they can discover the proxy for a given render prim.

  • With a little more work, a Hydra-based application will be able to map a picked proxy prim back to its render geometry for selection.

Note

It is only valid to author the proxyPrim relationship on prims whose purpose is “render”.

inline UsdRelationship CreateProxyPrimRel() const

See GetProxyPrimRel(), and also Create vs Get Property Methods for when to use Get vs Create.

UsdPrim GetPrim() const

Return this schema object’s held prim.

SdfPath GetPath() const

Return the SdfPath to this schema object’s held prim.

Public Static Functions

static inline UsdGeomNurbsPatch Define(const UsdStageRefPtr &stage, const SdfPath &path)

Attempt to ensure a UsdPrim adhering to this schema at path is defined (according to UsdPrim::IsDefined()) on this stage.

Public Static Attributes

static const UsdSchemaType schemaType = UsdSchemaType::ConcreteTyped

Compile time constant representing what kind of schema this class is.

See also

UsdSchemaType