[UPROPERTY](Programming/UnrealArchitecture/Reference/Properties)(EditAnywhere, Category="Mesh Rendering", Meta=(EditCondition="bOverrideMaterials"))
FNiagaraUserParameterBinding UserParamBinding
Use the UMaterialInterface bound to this user variable if it is set to a valid value. If this is bound to a valid value and ExplicitMat is also set, UserParamBinding wins.