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mdllibclasses

Module mdllibclasses provides all the classes used by the MDL library for the definition of all MDL entities. In particular, it defines the classes:

 class mdl.mdllibclasses.MDLAnnotationDef(aPath='', aParameters=None)

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL node annotation.

Members:
  • mPath (str): path of the mdl node
  • mParameters (list of MDLNodeDefParamValue): the parameters available on this node. 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 fromMDLAnnotation(aAnnotation)

Build the MDLAnnotationDef from a MDLAnnotation object

Parameters:aAnnotation (MDLAnnotation) – The operand to use to build this parameter 
 toMDLAnnotation()

Build the MDLAnnotation from this MDLAnnotationDef object

Returns:a MDLAnnotation object 
 class mdl.mdllibclasses.MDLLibObject

Bases: object

Base class of all MDL library classes.

 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 class mdl.mdllibclasses.MDLNodeDef(aPath='', aAnnotations=None, aParameters=None, aInputs=None, aOutputs=None, aIsSelector=False, aIsMaterial=False, aIsPassthrough=False)

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL node.

Members:
  • mPath (str): path of the mdl node
  • mAnnotations (list of MDLAnnotation): the annotations of the node.
  • mParameters (list of MDLNodeDefParam): the parameters available on this node.
  • mInputs (list of MDLNodeDefInput): the outputs of this node.
  • mOutputs (list of MDLNodeDefOutput): the outputs of this node.
  • mIsSelector (bool): Define if this node is a selector node
  • mIsMaterial (bool): Define if this node is a material
  • mIsPassthrough (bool): Define if this node is a passthrough node (NOTE: not an actual MDL definition) 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 getAllInputIdentifiers()

Get all the input identifiers as strings of this node definition

Returns:a list of string 
 getAllInputs()

Get all the inputs in this node definition

Returns:a list of MDLNodeDefInput 
 getAllOutputIdentifiers()

Get all the output identifiers as strings of this node definition

Returns:a list of string 
 getAllOutputs()

Get all the outputs in this node definition

Returns:a list of MDLNodeDefOutput 
 getAllParameterIdentifiers()

Get all the parameter identifiers as strings of this node definition

Returns:a list of string 
 getAllParameters()

Get all the parameters in this node definition

Returns:a list of MDLNodeDefParam 
 getDefaultOperands()

Get the list of default operands corresponding to the parameters available on this node definition

Parameters:aCheckType (bool, optional) – True to check the default connection visibility depending on the type of the operand. Default to False
Returns:a list of MDLOperand 
 getFirstInputOfType(aType)

Get the first MDLInputDef with the given type.

Parameters:aType (str) – mdl path of the required type
Returns:a MDLInputDef object if found, None otherwise 
 getFirstOutputOfType(aType)

Get the first MDLOutputDef with the given type.

Parameters:aType (str) – mdl path of the required type
Returns:a MDLOutputDef object if found, None otherwise 
 getInput(aInput)

Get the input with the given identifier.

Parameters:aInput (str) – The required input
Returns:a MDLNodeDefInput if found, None otherwise 
 getOutput(aOutput = None)

Get the output with the given identifier. If aOutput is None, return the first output if it exists.

Parameters:aOutput (str) – The required output
Returns:a MDLNodeDefOutput if found, None otherwise 
 getParameter(aParameter)

Get the required parameter

Parameters:aParameter (str) – The name of the parameter to get
Returns:a MDLNodeDefParam object if found, None otherwise 
 class mdl.mdllibclasses.MDLNodeDefInput(aIdentifier='input', aType=None)

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL node input.

Members:
  • mIdentifier (str): identifier of the output
  • mType (MDLNodeDefType): type of the output 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 fromMDLInputBridging(aInputBridging, aSBSGraph)

Build the MDLNodeDefInput from a MDLInputBridging object

Parameters:aInputBridging (MDLInputBridging) – The operand to use to build this input 
 fromMDLOperand(aOperand)

Build the MDLNodeDefInput from a MDLOperand object

Parameters:aOperand (MDLOperand) – The operand to use to build this input 
 getIdentifierStr()

Gets the identifier of the input

Returns:The identifier as a string 
 getType()

Get the mdl path of the type of this input

Returns:The mdl type as a string 
 class mdl.mdllibclasses.MDLNodeDefOutput(aIdentifier='output', aType=None)

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL node output.

Members:
  • mIdentifier (str): identifier of the output
  • mType (MDLNodeDefType): type of the output 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 fromMDLOutputBridging(aOutputBridging, aSBSGraph)

Build the MDLNodeDefOutput from a MDLOutputBridging object

Parameters:
  • aOutputBridging (MDLInputBridging) – The operand to use to build this input
  • aSBSGraph (SBSGraph) – The Substance Graph referenced by the input bridging 
 getIdentifierStr()

Gets the identifier of the output

Returns:The identifier as a string 
 getType()

Get the mdl path of the type of this output

Returns:The mdl type as a string 
 class mdl.mdllibclasses.MDLNodeDefParam(aName='', aAnnotations=None, aDefaultMDLValue=None, aDefaultValue=None, aDefaultValueType=None, aTypeName='', aTypePath='', aTypeModifier='')

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL node parameter.

Members:
  • mName (str): name of the parameter
  • mAnnotations (list of MDLAnnotationDef): annotations associated to this parameter
  • DefaultValue (str or MDLOperand): the default value of this parameter
  • mType (MDLNodeDefType): type of the parameter 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 fromMDLOperand(aOperand, copyValue=False)

Build the MDLNodeDefParam from a MDLOperand object

Parameters:
  • aOperand (MDLOperand) – The operand to use to build this parameter
  • copyValue (bool, optional) – True to set the value of the operand as the default parameter value. Default to False 
 fromMDLParameter(aParameter, copyValue=False)

fromSBSParameter(aParameter, copyValue=False) Build the MDLNodeDefParam from a MDLParameter object

Parameters:
  • aParameter (MDLParameter) – The operand to use to build this parameter
  • copyValue (bool, optional) – True to set the value of the parameter as the default parameter value. Default to False 
 getAnnotation(aAnnotation)

Get the annotation definition of the given annotation if defined in the parameter definition

Parameters:aAnnotation (MDLAnnotationEnum) – The annotation to look for
Returns:The annotation as a MDLAnnotationDef if found, None otherwise 
 getDefaultValue()

Get the default value of this parameter

Returns:The default value 
 getType()

Get the mdl path of the type of this parameter

Returns:The mdl type as a string 
 toMDLOperand()

Convert this parameter definition to the appropriate MDLOperand.

Returns:a MDLOperand 
 class mdl.mdllibclasses.MDLNodeDefParamValue(aName='', aValue='', aType='')

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL node parameter value.

Members:
  • mName (str): name of the parameter
  • mValue (str): value of the parameter
  • mType (str): type of the parameter 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 getType()

Get the mdl path of the type of this parameter

Returns:The mdl type as a string 
 class mdl.mdllibclasses.MDLNodeDefType(aName='', aPath='', aModifier='auto')

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL type.

Members:
  • mName (str): name of the parameter
  • mPath (str): value of the parameter
  • mModifier (str, optional): type of the parameter. Default to ‘auto’ 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 class mdl.mdllibclasses.MDLTypeDef(aPath='', aKind=0, aComponentType=None, aComponentCount=-1, aRowCount=-1, aColumnCount=-1, aArrayDeferredSize=False, aArraySizeIdentifier=None, aEnumValues=None, aStructMembers=None, aTextureShape=None)

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL type.

Members:
  • mPath (str): mdl path of the type
  • mKind (MDLTypeDefKindEnum): kind of type (‘atomic’, ‘enum’, ‘struct’, ‘vector’, …)
  • mComponentType (str, optional): For compound types, mdl path of the type of component
  • mComponentCount (int, optional): For compound types, the number of components required
  • mRowCount (int, optional): For matrix type, the number of rows
  • mColumnCount (int, optional): For matrix type, the number of columns
  • mArrayDeferredSize (bool, optional): For array type, defines if the size is known or deferred
  • mArraySizeIdentifier (str, optional): For array type, the size identifier
  • mEnumValues (dict {key(str):value(int)}, optional: enumeration type definition
  • mStructMembers (list of MDLTypeStructMemberDef, optional): struct type definition
  • mTextureShape (str, optional): For texture type, the shape of the texture 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data 
 getModuleName()

Get the module name, which is the last part of the type’s mdl path

Returns:The module name as a string 
 getModulePath()

Get the module path, which is the beginning of the type’s mdl path, without the last module name

Returns:The module path as a string 
 isArray()

Check whether the type is an array.

Returns:True if the type is an array, False otherwise 
 isAtomic()

Check whether the type is atomic.

Returns:True if the type is atomic, False otherwise 
 isCall()

Check whether the type is a call.

Returns:True if the type is a call, False otherwise 
 isCompound()

Check whether the type is a compound (vector, color, matrix).

Returns:True if the type is a compound, False otherwise 
 isEnum()

Check whether the type an enum.

Returns:True if the type is an enum, False otherwise 
 isMaterial()

Check whether the type is a material.

Returns:True if the type is a material, False otherwise 
 isReference()

Check whether the type is a reference.

Returns:True if the type is a reference, False otherwise 
 isResource()

Check whether the type is a resource of any kind (texture, bsdf_measurement, …).

Returns:True if the type is a resource, False otherwise 
 isString()

Check whether the type is a string.

Returns:True if the type is a string, False otherwise 
 isStruct()

Check whether the type is a struct.

Returns:True if the type is a struct, False otherwise 
 toMDLOperand(aName = None)

Convert this type definition to the appropriate MDLOperand, with the given name.

Parameters:aName (str, optional) – name of the operand. If None, the default name is used
Returns:a MDLOperand 
 class mdl.mdllibclasses.MDLTypeStructMemberDef(aName='', aType=None)

Bases: mdl.mdllibclasses.MDLLibObject

This class contains the definition of a MDL type of kind struct.

Members:
  • mName (str): name of the struct member
  • mType (str): mdl path of the type 
 fromJSON(jsonData)

Build the object from the given JSON data

Parameters:jsonData (dict) – JSON data

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