Link error with UMaterialParameterCollectionInstance::SetScalarParameterValue()

Development Programming & Scripting
1

Hi everyone,
I’m trying to access a parameter collection to change Material values at runtime.

PPParameterCollectionInst = GetWorld()->GetParameterCollectionInstance(PPParameterCollection);
if(PPParameterCollectionInst != NULL)
                   PPParameterCollectionInst->SetScalarParameterValue(HU4PC_PPParameters::EMP_Percent, 0.0f);

It compiles just fine but here’s what I get when linking :

error LNK2019: unresolved external symbol "public: bool __cdecl UMaterialParameterCollectionInstance::SetScalarParameterValue(class FName,float)" (?SetScalarParameterValue@UMaterialParameterCollectionInstance@@QEAA_NVFName@@M@Z) referenced in function "private: void __cdecl AHU4PlayerController::SetupForFlight(void)" (?SetupForFlight@AHU4PlayerController@@AEAAXXZ)

I don’t get it… Something missing in the build.cs ?
thanks

2

Hi,
Check out this post here, it’s basically the same problem:
https://answers.unrealengine.com/questions/46419/link-error-when-setting-parameter-values-on-a-mate.html

3

What can I say ? Thank you and sorry for the double-question…