A RenderPass prim encapsulates the necessary information to generate multipass renders. More...

Inheritance diagram for UsdRenderPass:

Public Member Functions
	UsdRenderPass (const UsdPrim &prim=UsdPrim())
	Construct a UsdRenderPass on UsdPrim `prim` . More...

	UsdRenderPass (const UsdSchemaBase &schemaObj)
	Construct a UsdRenderPass on the prim held by `schemaObj` . More...

virtual USDRENDER_API	~UsdRenderPass ()
	Destructor. More...

USDRENDER_API UsdAttribute	GetPassTypeAttr () const
	A string used to categorize differently structured or executed types of passes within a customized pipeline. More...

USDRENDER_API UsdAttribute	CreatePassTypeAttr (VtValue const &defaultValue=VtValue(), bool writeSparsely=false) const
	See GetPassTypeAttr(), and also Create vs Get Property Methods for when to use Get vs Create. More...

USDRENDER_API UsdAttribute	GetCommandAttr () const
	The command to run in order to generate renders for this pass. More...

USDRENDER_API UsdAttribute	CreateCommandAttr (VtValue const &defaultValue=VtValue(), bool writeSparsely=false) const
	See GetCommandAttr(), and also Create vs Get Property Methods for when to use Get vs Create. More...

USDRENDER_API UsdAttribute	GetFileNameAttr () const
	The asset that contains the rendering prims or other information needed to render this pass. More...

USDRENDER_API UsdAttribute	CreateFileNameAttr (VtValue const &defaultValue=VtValue(), bool writeSparsely=false) const
	See GetFileNameAttr(), and also Create vs Get Property Methods for when to use Get vs Create. More...

USDRENDER_API UsdAttribute	GetDenoiseEnableAttr () const
	When True, this Pass pass should be denoised. More...

USDRENDER_API UsdAttribute	CreateDenoiseEnableAttr (VtValue const &defaultValue=VtValue(), bool writeSparsely=false) const
	See GetDenoiseEnableAttr(), and also Create vs Get Property Methods for when to use Get vs Create. More...

USDRENDER_API UsdRelationship	GetRenderSourceRel () const
	The source prim to render from. More...

USDRENDER_API UsdRelationship	CreateRenderSourceRel () const
	See GetRenderSourceRel(), and also Create vs Get Property Methods for when to use Get vs Create. More...

USDRENDER_API UsdRelationship	GetInputPassesRel () const
	The set of other Passes that this Pass depends on in order to be constructed properly. More...

USDRENDER_API UsdRelationship	CreateInputPassesRel () const
	See GetInputPassesRel(), and also Create vs Get Property Methods for when to use Get vs Create. More...

USDRENDER_API UsdRelationship	GetDenoisePassRel () const
	The The UsdRenderDenoisePass prim from which to source denoise settings. More...

USDRENDER_API UsdRelationship	CreateDenoisePassRel () const
	See GetDenoisePassRel(), and also Create vs Get Property Methods for when to use Get vs Create. More...

Public Member Functions inherited from UsdTyped
	UsdTyped (const UsdPrim &prim=UsdPrim())
	Construct a UsdTyped on UsdPrim `prim` . More...

	UsdTyped (const UsdSchemaBase &schemaObj)
	Construct a UsdTyped on the prim wrapped by `schemaObj` . More...

Public Member Functions inherited from UsdSchemaBase
bool	IsConcrete () const
	Returns whether or not this class corresponds to a concrete instantiable prim type in scene description. More...

bool	IsTyped () const
	Returns whether or not this class inherits from UsdTyped. More...

bool	IsAPISchema () const
	Returns whether this is an API schema or not. More...

bool	IsAppliedAPISchema () const
	Returns whether this is an applied API schema or not. More...

bool	IsMultipleApplyAPISchema () const
	Returns whether this is an applied API schema or not. More...

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 UsdPrimDefinition *	GetSchemaClassPrimDefinition () const
	Return the prim definition associated with this schema instance if one exists, otherwise return null. More...

Static Public Member Functions
static USDRENDER_API const TfTokenVector &	GetSchemaAttributeNames (bool includeInherited=true)
	Return a vector of names of all pre-declared attributes for this schema class and all its ancestor classes. More...

static USDRENDER_API UsdRenderPass	Get (const UsdStagePtr &stage, const SdfPath &path)
	Return a UsdRenderPass holding the prim adhering to this schema at `path` on `stage`. More...

static USDRENDER_API UsdRenderPass	Define (const UsdStagePtr &stage, const SdfPath &path)
	Attempt to ensure a UsdPrim adhering to this schema at `path` is defined (according to UsdPrim::IsDefined()) on this stage. More...

Static Public Member Functions inherited from UsdTyped
static const TfTokenVector &	GetSchemaAttributeNames (bool includeInherited=true)
	Return a vector of names of all pre-declared attributes for this schema class and all its ancestor classes. More...

static USD_API UsdTyped	Get (const UsdStagePtr &stage, const SdfPath &path)
	Return a UsdTyped holding the prim adhering to this schema at `path` on `stage`. More...

Static Public Member Functions inherited from UsdSchemaBase
static const TfTokenVector &	GetSchemaAttributeNames (bool includeInherited=true)

Static Public Attributes
static const UsdSchemaKind	schemaKind = UsdSchemaKind::ConcreteTyped
	Compile time constant representing what kind of schema this class is. More...

Static Public Attributes inherited from UsdTyped
static const UsdSchemaKind	schemaKind = UsdSchemaKind::AbstractBase
	Compile time constant representing what kind of schema this class is. More...

Static Public Attributes inherited from UsdSchemaBase
static const UsdSchemaKind	schemaKind = UsdSchemaKind::AbstractBase
	Compile time constant representing what kind of schema this class is. More...

Protected Member Functions
USDRENDER_API UsdSchemaKind	_GetSchemaKind () const override
	Returns the kind of schema this class belongs to. More...

Protected Member Functions inherited from UsdTyped
USD_API bool	_IsCompatible () const override
	Subclasses may override _IsCompatible to do specific compatibility checking with the given prim, such as type compatibility or value compatibility. More...

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

Detailed Description

A RenderPass prim encapsulates the necessary information to generate multipass renders.

It houses properties for generating dependencies and the necessary commands to run to generate renders, as well as visibility controls for the scene. While RenderSettings describes the information needed to generate images from a single invocation of a renderer, RenderPass describes the additional information needed to generate a time varying set of images.

There are two consumers of RenderPass prims - a runtime executable that generates images from usdRender prims, and pipeline specific code that translates between usdRender prims and the pipeline's resource scheduling software. We'll refer to the latter as 'job submission code'.

The name of the prim is used as the pass's name.

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

Definition at line 76 of file pass.h.

Constructor & Destructor Documentation

◆ UsdRenderPass() [1/2]

UsdRenderPass ( const UsdPrim & prim = UsdPrim() )

inlineexplicit

Construct a UsdRenderPass on UsdPrim prim .

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

Definition at line 88 of file pass.h.

◆ UsdRenderPass() [2/2]

UsdRenderPass ( const UsdSchemaBase & schemaObj )

inlineexplicit

Construct a UsdRenderPass on the prim held by schemaObj .

Should be preferred over UsdRenderPass(schemaObj.GetPrim()), as it preserves SchemaBase state.

Definition at line 96 of file pass.h.

◆ ~UsdRenderPass()

virtual USDRENDER_API ~UsdRenderPass ( )

virtual

Destructor.

Member Function Documentation

◆ _GetSchemaKind()

USDRENDER_API UsdSchemaKind _GetSchemaKind ( ) const

overrideprotectedvirtual

Returns the kind of schema this class belongs to.

See also: UsdSchemaKind

Reimplemented from UsdSchemaBase.

◆ CreateCommandAttr()

USDRENDER_API UsdAttribute CreateCommandAttr	(	VtValue const &	defaultValue = `VtValue()`,
		bool	writeSparsely = `false`
	)		const

See GetCommandAttr(), 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.

◆ CreateDenoiseEnableAttr()

USDRENDER_API UsdAttribute CreateDenoiseEnableAttr	(	VtValue const &	defaultValue = `VtValue()`,
		bool	writeSparsely = `false`
	)		const

See GetDenoiseEnableAttr(), 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.

◆ CreateDenoisePassRel()

USDRENDER_API UsdRelationship CreateDenoisePassRel ( ) const

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

◆ CreateFileNameAttr()

USDRENDER_API UsdAttribute CreateFileNameAttr	(	VtValue const &	defaultValue = `VtValue()`,
		bool	writeSparsely = `false`
	)		const

See GetFileNameAttr(), 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.

◆ CreateInputPassesRel()

USDRENDER_API UsdRelationship CreateInputPassesRel ( ) const

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

◆ CreatePassTypeAttr()

USDRENDER_API UsdAttribute CreatePassTypeAttr	(	VtValue const &	defaultValue = `VtValue()`,
		bool	writeSparsely = `false`
	)		const

See GetPassTypeAttr(), 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.

◆ CreateRenderSourceRel()

USDRENDER_API UsdRelationship CreateRenderSourceRel ( ) const

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

◆ Define()

static USDRENDER_API UsdRenderPass Define	(	const UsdStagePtr &	stage,
		const SdfPath &	path
	)

static

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

If a prim adhering to this schema at path is already defined on this stage, return that prim. Otherwise author an SdfPrimSpec with specifier == SdfSpecifierDef and this schema's prim type name for the prim at path at the current EditTarget. Author SdfPrimSpec s with specifier == SdfSpecifierDef and empty typeName at the current EditTarget for any nonexistent, or existing but not Defined ancestors.

The given path must be an absolute prim path that does not contain any variant selections.

If it is impossible to author any of the necessary PrimSpecs, (for example, in case path cannot map to the current UsdEditTarget's namespace) issue an error and return an invalid UsdPrim.

Note that this method may return a defined prim whose typeName does not specify this schema class, in case a stronger typeName opinion overrides the opinion at the current EditTarget.

◆ Get()

static USDRENDER_API UsdRenderPass Get	(	const UsdStagePtr &	stage,
		const SdfPath &	path
	)

static

Return a UsdRenderPass 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:

UsdRenderPass(stage->GetPrimAtPath(path));

◆ GetCommandAttr()

USDRENDER_API UsdAttribute GetCommandAttr ( ) const

The command to run in order to generate renders for this pass.

The job submission code can use this to properly send tasks to the job scheduling software that will generate products.

The command can contain variables that will be substituted appropriately during submission, as seen in the example below with {fileName}.

For example: command[0] = "prman" command[1] = "-progress" command[2] = "-pixelvariance" command[3] = "-0.15" command[4] = "{fileName}" # the fileName property will be substituted


Declaration	`uniform string[] command`
C++ Type	VtArray<std::string>
Usd Type	SdfValueTypeNames->StringArray
Variability	SdfVariabilityUniform

◆ GetDenoiseEnableAttr()

USDRENDER_API UsdAttribute GetDenoiseEnableAttr ( ) const

When True, this Pass pass should be denoised.


Declaration	`uniform bool denoise:enable = 0`
C++ Type	bool
Usd Type	SdfValueTypeNames->Bool
Variability	SdfVariabilityUniform

◆ GetDenoisePassRel()

USDRENDER_API UsdRelationship GetDenoisePassRel ( ) const

The The UsdRenderDenoisePass prim from which to source denoise settings.

◆ GetFileNameAttr()

USDRENDER_API UsdAttribute GetFileNameAttr ( ) const

The asset that contains the rendering prims or other information needed to render this pass.


Declaration	`uniform asset fileName`
C++ Type	SdfAssetPath
Usd Type	SdfValueTypeNames->Asset
Variability	SdfVariabilityUniform

◆ GetInputPassesRel()

USDRENDER_API UsdRelationship GetInputPassesRel ( ) const

The set of other Passes that this Pass depends on in order to be constructed properly.

For example, a Pass A may generate a texture, which is then used as an input to Pass B.

By default, usdRender makes some assumptions about the relationship between this prim and the prims listed in inputPasses. Namely, when per-frame tasks are generated from these pass prims, usdRender will assume a one-to-one relationship between tasks that share their frame number. Consider a pass named 'composite' whose inputPasses targets a Pass prim named 'beauty`.

By default, each frame for 'composite' will depend on the same frame from 'beauty': beauty.1 -> composite.1 beauty.2 -> composite.2 etc

The consumer of this RenderPass graph of inputs will need to resolve the transitive dependencies.

◆ GetPassTypeAttr()

USDRENDER_API UsdAttribute GetPassTypeAttr ( ) const

A string used to categorize differently structured or executed types of passes within a customized pipeline.

For example, when multiple DCC's (e.g. Houdini, Katana, Nuke) each compute and contribute different Products to a final result, it may be clearest and most flexible to create a separate RenderPass for each.


Declaration	`uniform token passType`
C++ Type	TfToken
Usd Type	SdfValueTypeNames->Token
Variability	SdfVariabilityUniform

◆ GetRenderSourceRel()

USDRENDER_API UsdRelationship GetRenderSourceRel ( ) const

The source prim to render from.

If fileName is not present, the source is assumed to be a RenderSettings prim present in the current Usd stage. If fileName is present, the source should be found in the file there. This relationship might target a string attribute on this or another prim that identifies the appropriate object in the external container.

For example, for a Usd-backed pass, this would point to a RenderSettings prim. Houdini passes would point to a Rop. Nuke passes would point to a write node.

◆ GetSchemaAttributeNames()

static USDRENDER_API const TfTokenVector& 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.

Member Data Documentation

◆ schemaKind

const UsdSchemaKind schemaKind = UsdSchemaKind::ConcreteTyped

static

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

See also: UsdSchemaKind

Definition at line 82 of file pass.h.

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

pxr/usd/usdRender/pass.h

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Friends

Detailed Description

Constructor & Destructor Documentation

◆ UsdRenderPass() [1/2]

◆ UsdRenderPass() [2/2]

◆ ~UsdRenderPass()

Member Function Documentation

◆ _GetSchemaKind()

◆ CreateCommandAttr()

◆ CreateDenoiseEnableAttr()

◆ CreateDenoisePassRel()

◆ CreateFileNameAttr()

◆ CreateInputPassesRel()

◆ CreatePassTypeAttr()

◆ CreateRenderSourceRel()

◆ Define()

◆ Get()

◆ GetCommandAttr()

◆ GetDenoiseEnableAttr()

◆ GetDenoisePassRel()

◆ GetFileNameAttr()

◆ GetInputPassesRel()

◆ GetPassTypeAttr()

◆ GetRenderSourceRel()

◆ GetSchemaAttributeNames()

Member Data Documentation

◆ schemaKind