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Unreal Engine C++ API Reference > Runtime > Engine > Materials > UMaterial
References
| Module | Engine |
| Header | /Engine/Source/Runtime/Engine/Classes/Materials/Material.h |
| Include | #include "Materials/Material.h" |
| Source | /Engine/Source/Runtime/Engine/Private/Materials/Material.cpp |
virtual bool AddExpressionParameter
&40;
UMaterialExpression &42; Expression,
TMap< FName, TArray< UMaterialExpression &42; > > & ParameterTypeMap
&41;
Remarks
Add an expression node that represents a parameter to the list of material parameters.
Parameters
| Name | Description |
|---|---|
| Expression | Pointer to the node that is going to be inserted if it's a parameter type. |