usdrt::UsdLuxShadowAPI

Defined in usdrt/scenegraph/usd/usdLux/shadowAPI.h

Functions

Variables

class UsdLuxShadowAPI : public usdrt::UsdAPISchemaBase

Controls to refine a light’s shadow behavior. These are non-physical controls that are valuable for visual lighting work.

Public Functions

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

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

inline explicit UsdLuxShadowAPI(const UsdSchemaBase &schemaObj)

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

inline virtual ~UsdLuxShadowAPI()

Destructor.

inline operator bool() const

Boolean operator.

Returns

Return true if the contained prim is has this api schema applied using HasAPI, and false otherwise.

inline UsdAttribute GetShadowEnableAttr() const

Enables shadows to be cast by this light.

Declaration

bool inputs:shadow:enable = 1

C++ Type

bool

Usd Type

SdfValueTypeNames->Bool

inline UsdAttribute CreateShadowEnableAttr() const

See GetShadowEnableAttr(), 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 GetShadowColorAttr() const

The color of shadows cast by the light. This is a non-physical control. The default is to cast black shadows.

Declaration

color3f inputs:shadow:color = (0, 0, 0)

C++ Type

GfVec3f

Usd Type

SdfValueTypeNames->Color3f

inline UsdAttribute CreateShadowColorAttr() const

See GetShadowColorAttr(), 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 GetShadowDistanceAttr() const

The maximum distance shadows are cast. The default value (-1) indicates no limit.

Declaration

float inputs:shadow:distance = -1

C++ Type

float

Usd Type

SdfValueTypeNames->Float

inline UsdAttribute CreateShadowDistanceAttr() const

See GetShadowDistanceAttr(), 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 GetShadowFalloffAttr() const

The near distance at which shadow falloff begins. The default value (-1) indicates no falloff.

Declaration

float inputs:shadow:falloff = -1

C++ Type

float

Usd Type

SdfValueTypeNames->Float

inline UsdAttribute CreateShadowFalloffAttr() const

See GetShadowFalloffAttr(), 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 GetShadowFalloffGammaAttr() const

A gamma (i.e., exponential) control over shadow strength with linear distance within the falloff zone. This requires the use of shadowDistance and shadowFalloff.

Declaration

float inputs:shadow:falloffGamma = 1

C++ Type

float

Usd Type

SdfValueTypeNames->Float

inline UsdAttribute CreateShadowFalloffGammaAttr() const

See GetShadowFalloffGammaAttr(), 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.

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 UsdLuxShadowAPI Apply(const UsdPrim &prim)

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

See also

UsdPrim::GetAppliedSchemas()

See also

UsdPrim::HasAPI()

See also

UsdPrim::ApplyAPI()

See also

UsdPrim::RemoveAPI()

Returns

A valid UsdLuxShadowAPI object is returned upon success. An invalid (or empty) UsdLuxShadowAPI object is returned upon failure. See UsdPrim::ApplyAPI() for conditions resulting in failure.

Public Static Attributes

static const UsdSchemaType schemaType = UsdSchemaType::SingleApplyAPI

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

See also

UsdSchemaType

Protected Functions

inline const TfToken &_GetInstanceName() const

Returns the instance name of the API schema object belonging to a multiple-apply API schema.

The returned instance name will be empty for non-applied and single-apply API schemas.