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Public Member Functions | Static Public Member Functions | Protected Member Functions | List of all members
UsdImagingDataSourcePrim Class Reference

#include <dataSourcePrim.h>

+ Inheritance diagram for UsdImagingDataSourcePrim:

Public Member Functions

 HD_DECLARE_DATASOURCE (UsdImagingDataSourcePrim)
 
USDIMAGING_API TfTokenVector GetNames () override
 
USDIMAGING_API
HdDataSourceBaseHandle 		Get (const TfToken &name) override
 
- Public Member Functions inherited from HdContainerDataSource
 HD_DECLARE_DATASOURCE_ABSTRACT (HdContainerDataSource)
 
- Public Member Functions inherited from HdDataSourceBase
virtual HD_API ~HdDataSourceBase ()=0
 

Static Public Member Functions

static USDIMAGING_API
HdDataSourceLocatorSet 		Invalidate (UsdPrim const &prim, const TfToken &subprim, const TfTokenVector &properties, UsdImagingPropertyInvalidationType invalidationType)
 
- Static Public Member Functions inherited from HdContainerDataSource
static HD_API
HdDataSourceBaseHandle 		Get (const Handle &container, const HdDataSourceLocator &locator)
 

Protected Member Functions

USDIMAGING_API UsdImagingDataSourcePrim (const SdfPath &sceneIndexPath, UsdPrim usdPrim, const UsdImagingDataSourceStageGlobals &stageGlobals)
 
const SdfPath & _GetSceneIndexPath () const
 
const UsdPrim & _GetUsdPrim () const
 
const
UsdImagingDataSourceStageGlobals & 		_GetStageGlobals () const
 

Detailed Description

Data source representing a basic USD prim. This class is meant to check for behaviors we might expect on all nodes of the scene, including interior nodes; e.g. xform, visibility. It's expected that concrete imaging types would derive from this and add imaging prim-related attributes.

Note: while every prim gets at least this datasource defined on it, this datasource tries to aggressively early out of attribute checks based on type information (IsA/HasA) or namespace-accelerated attribute checks.

Since a Usd prim can populate multiple imaging prims (e.g. /prim, /prim.a, /prim.b); and since the default prim path (/prim) is always populated; we drop inherited attributes on subprims (/prim.a), letting them inherit from /prim instead. This way we don't (e.g.) double-apply transforms.

Definition at line 446 of file dataSourcePrim.h.

Constructor & Destructor Documentation

USDIMAGING_API UsdImagingDataSourcePrim::UsdImagingDataSourcePrim ( const SdfPath &  sceneIndexPath,
UsdPrim  usdPrim,
const UsdImagingDataSourceStageGlobals &  stageGlobals 
)
protected

Use to construct a new UsdImagingDataSourcePrim.

sceneIndexPath is the path of this object in the scene index. (Note: this can be different than the usd path if one usd prim inserts multiple imaging prims).

usdPrim is the USD prim object that this data source represents.

stageGlobals represents the context object for the UsdStage with which to evaluate this attribute data source.

Note: client code calls this via static New().

Member Function Documentation

const SdfPath& UsdImagingDataSourcePrim::_GetSceneIndexPath ( ) const
inlineprotected

Definition at line 491 of file dataSourcePrim.h.

const UsdImagingDataSourceStageGlobals& UsdImagingDataSourcePrim::_GetStageGlobals ( ) const
inlineprotected

Definition at line 499 of file dataSourcePrim.h.

const UsdPrim& UsdImagingDataSourcePrim::_GetUsdPrim ( ) const
inlineprotected

Definition at line 495 of file dataSourcePrim.h.

USDIMAGING_API HdDataSourceBaseHandle UsdImagingDataSourcePrim::Get ( const TfToken &  name)
overridevirtual

Returns the data source representing name, if valid.

Implements HdContainerDataSource.

Reimplemented in UsdImagingDataSourceRenderVarPrim, UsdImagingDataSourceRenderProductPrim, UsdImagingDataSourceFieldAssetPrim, UsdImagingDataSourceVolumePrim, and UsdImagingDataSourceRenderSettingsPrim.

USDIMAGING_API TfTokenVector UsdImagingDataSourcePrim::GetNames ( )
overridevirtual

Returns the names for which this data source can return meaningful results.

Implements HdContainerDataSource.

Reimplemented in UsdImagingDataSourceRenderVarPrim, UsdImagingDataSourceRenderProductPrim, UsdImagingDataSourceFieldAssetPrim, UsdImagingDataSourceVolumePrim, and UsdImagingDataSourceRenderSettingsPrim.

UsdImagingDataSourcePrim::HD_DECLARE_DATASOURCE ( UsdImagingDataSourcePrim  )
static USDIMAGING_API HdDataSourceLocatorSet UsdImagingDataSourcePrim::Invalidate ( UsdPrim const &  prim,
const TfToken &  subprim,
const TfTokenVector &  properties,
UsdImagingPropertyInvalidationType  invalidationType 
)
static

Returns the hydra attribute set we should invalidate if the value of the USD properties in properties change.

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