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UsdVolParticleFieldKernelGaussianEllipsoidAPI Class Reference

#include <particleFieldKernelGaussianEllipsoidAPI.h>

+ Inheritance diagram for UsdVolParticleFieldKernelGaussianEllipsoidAPI:

Public Member Functions

 UsdVolParticleFieldKernelGaussianEllipsoidAPI (const UsdPrim &prim=UsdPrim())
 
 UsdVolParticleFieldKernelGaussianEllipsoidAPI (const UsdSchemaBase &schemaObj)
 
virtual USDVOL_API ~UsdVolParticleFieldKernelGaussianEllipsoidAPI ()
 Destructor. More...
 
ParticleFieldKernelBaseAPI

Convenience accessors for the built-in UsdVolParticleFieldKernelBaseAPI

USDVOL_API
UsdVolParticleFieldKernelBaseAPI 
ParticleFieldKernelBaseAPI () const
 
- Public Member Functions inherited from UsdAPISchemaBase
 UsdAPISchemaBase (const UsdPrim &prim=UsdPrim())
 
 UsdAPISchemaBase (const UsdSchemaBase &schemaObj)
 
virtual USD_API ~UsdAPISchemaBase ()=0
 Destructor. More...
 
- Public Member Functions inherited from UsdSchemaBase
bool IsConcrete () const
 
bool IsTyped () const
 
bool IsAPISchema () const
 Returns whether this is an API schema or not. More...
 
bool IsAppliedAPISchema () const
 
bool IsMultipleApplyAPISchema () const
 
UsdSchemaKind GetSchemaKind () const
 Returns the kind of schema this class is. More...
 
USD_API UsdSchemaBase (const UsdPrim &prim=UsdPrim())
 Construct and store prim as the held prim. More...
 
USD_API UsdSchemaBase (const UsdSchemaBase &otherSchema)
 Construct and store for the same prim held by otherSchema. More...
 
virtual USD_API ~UsdSchemaBase ()
 Destructor. More...
 
USD_API operator bool () const
 
UsdPrim GetPrim () const
 Return this schema object's held prim. More...
 
SdfPath GetPath () const
 Shorthand for GetPrim()->GetPath(). More...
 
USD_API const UsdPrimDefinitionGetSchemaClassPrimDefinition () const
 

Static Public Member Functions

static USDVOL_API const
TfTokenVector
GetSchemaAttributeNames (bool includeInherited=true)
 
static USDVOL_API
UsdVolParticleFieldKernelGaussianEllipsoidAPI 
Get (const UsdStagePtr &stage, const SdfPath &path)
 
static USDVOL_API bool CanApply (const UsdPrim &prim, std::string *whyNot=nullptr)
 
static USDVOL_API
UsdVolParticleFieldKernelGaussianEllipsoidAPI 
Apply (const UsdPrim &prim)
 
- Static Public Member Functions inherited from UsdAPISchemaBase
static USD_API const
TfTokenVector
GetSchemaAttributeNames (bool includeInherited=true)
 
- Static Public Member Functions inherited from UsdSchemaBase
static const TfTokenVectorGetSchemaAttributeNames (bool includeInherited=true)
 

Static Public Attributes

static const UsdSchemaKind schemaKind = UsdSchemaKind::SingleApplyAPI
 
- Static Public Attributes inherited from UsdAPISchemaBase
static const UsdSchemaKind schemaKind = UsdSchemaKind::AbstractBase
 
- Static Public Attributes inherited from UsdSchemaBase
static const UsdSchemaKind schemaKind = UsdSchemaKind::AbstractBase
 

Protected Member Functions

USDVOL_API UsdSchemaKind _GetSchemaKind () const override
 
- Protected Member Functions inherited from UsdAPISchemaBase
 UsdAPISchemaBase (const UsdPrim &prim, const TfToken &instanceName)
 
 UsdAPISchemaBase (const UsdSchemaBase &schemaObj, const TfToken &instanceName)
 
const TfToken_GetInstanceName () const
 
USD_API bool _IsCompatible () const override
 
- Protected Member Functions inherited from UsdSchemaBase
virtual UsdSchemaKind _GetSchemaType () const
 
const TfType_GetType () const
 
USD_API UsdAttribute _CreateAttr (TfToken const &attrName, SdfValueTypeName const &typeName, bool custom, SdfVariability variability, VtValue const &defaultValue, bool writeSparsely) const
 

Friends

class UsdSchemaRegistry
 

Additional Inherited Members

- Static Protected Member Functions inherited from UsdAPISchemaBase
static USD_API TfTokenVector _GetMultipleApplyInstanceNames (const UsdPrim &prim, const TfType &schemaType)
 

Detailed Description

Defines the gaussian ellipsoid kernel for a given ParticleField.

An untransformed kernel (i.e. identity position, scale, rotation, opacity) will define opacity at point 'p' by g(u=0;o=1;x = p.length()). Note that since the standard deviation is 1, the 3-sigma point is 3.0 and 99.7% of the splat support is within a spherical region of radius 3.

Per-splat opacity is multiplicative with the gaussian falloff; rotation and scale will transform the gaussian sphere kernel into an ellipsoid; and position moves the per-splat peak falloff from the origin.

Definition at line 52 of file particleFieldKernelGaussianEllipsoidAPI.h.

Constructor & Destructor Documentation

UsdVolParticleFieldKernelGaussianEllipsoidAPI::UsdVolParticleFieldKernelGaussianEllipsoidAPI ( const UsdPrim prim = UsdPrim())
inlineexplicit

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

Definition at line 64 of file particleFieldKernelGaussianEllipsoidAPI.h.

UsdVolParticleFieldKernelGaussianEllipsoidAPI::UsdVolParticleFieldKernelGaussianEllipsoidAPI ( const UsdSchemaBase schemaObj)
inlineexplicit

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

Definition at line 72 of file particleFieldKernelGaussianEllipsoidAPI.h.

virtual USDVOL_API UsdVolParticleFieldKernelGaussianEllipsoidAPI::~UsdVolParticleFieldKernelGaussianEllipsoidAPI ( )
virtual

Destructor.

Member Function Documentation

USDVOL_API UsdSchemaKind UsdVolParticleFieldKernelGaussianEllipsoidAPI::_GetSchemaKind ( ) const
overrideprotectedvirtual

Returns the kind of schema this class belongs to.

See Also
UsdSchemaKind

Reimplemented from UsdAPISchemaBase.

static USDVOL_API UsdVolParticleFieldKernelGaussianEllipsoidAPI UsdVolParticleFieldKernelGaussianEllipsoidAPI::Apply ( const UsdPrim prim)
static

Applies this single-apply API schema to the given prim. This information is stored by adding "ParticleFieldKernelGaussianEllipsoidAPI" to the token-valued, listOp metadata apiSchemas on the prim.

Returns
A valid UsdVolParticleFieldKernelGaussianEllipsoidAPI object is returned upon success. An invalid (or empty) UsdVolParticleFieldKernelGaussianEllipsoidAPI object is returned upon failure. See UsdPrim::ApplyAPI() for conditions resulting in failure.
See Also
UsdPrim::GetAppliedSchemas()
UsdPrim::HasAPI()
UsdPrim::CanApplyAPI()
UsdPrim::ApplyAPI()
UsdPrim::RemoveAPI()
static USDVOL_API bool UsdVolParticleFieldKernelGaussianEllipsoidAPI::CanApply ( const UsdPrim prim,
std::string *  whyNot = nullptr 
)
static

Returns true if this single-apply API schema can be applied to the given prim. If this schema can not be a applied to the prim, this returns false and, if provided, populates whyNot with the reason it can not be applied.

Note that if CanApply returns false, that does not necessarily imply that calling Apply will fail. Callers are expected to call CanApply before calling Apply if they want to ensure that it is valid to apply a schema.

See Also
UsdPrim::GetAppliedSchemas()
UsdPrim::HasAPI()
UsdPrim::CanApplyAPI()
UsdPrim::ApplyAPI()
UsdPrim::RemoveAPI()
static USDVOL_API UsdVolParticleFieldKernelGaussianEllipsoidAPI UsdVolParticleFieldKernelGaussianEllipsoidAPI::Get ( const UsdStagePtr &  stage,
const SdfPath path 
)
static

Return a UsdVolParticleFieldKernelGaussianEllipsoidAPI holding the prim adhering to this schema at path on stage. If no prim exists at path on stage, or if the prim at that path does not adhere to this schema, return an invalid schema object. This is shorthand for the following:

static USDVOL_API const TfTokenVector& UsdVolParticleFieldKernelGaussianEllipsoidAPI::GetSchemaAttributeNames ( bool  includeInherited = true)
static

Return a vector of names of all pre-declared attributes for this schema class and all its ancestor classes. Does not include attributes that may be authored by custom/extended methods of the schemas involved.

USDVOL_API UsdVolParticleFieldKernelBaseAPI UsdVolParticleFieldKernelGaussianEllipsoidAPI::ParticleFieldKernelBaseAPI ( ) const

Constructs and returns a UsdVolParticleFieldKernelBaseAPI object. Use this object to access UsdVolParticleFieldKernelBaseAPI custom methods.

Friends And Related Function Documentation

friend class UsdSchemaRegistry
friend

Definition at line 150 of file particleFieldKernelGaussianEllipsoidAPI.h.

Member Data Documentation

const UsdSchemaKind UsdVolParticleFieldKernelGaussianEllipsoidAPI::schemaKind = UsdSchemaKind::SingleApplyAPI
static

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

See Also
UsdSchemaKind

Definition at line 58 of file particleFieldKernelGaussianEllipsoidAPI.h.


The documentation for this class was generated from the following file: