MaterialParameterCollectionUtilities.cpp

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// Copyright (c) 2024 FrostBit Software Lab at the Lapland University of Applied Sciences
//
// This work is licensed under the terms of the MIT license.
// For a copy, see <https://opensource.org/licenses/MIT>.
 
#include "MaterialParameterCollectionUtilities.h"
 
#include "Materials/MaterialParameterCollection.h"
#include "Kismet/GameplayStatics.h"
#include "Engine/Engine.h"
#include "Engine/World.h"
 
bool UMaterialParameterCollectionUtilities::UpdateMaterialCollectionVectorValue(UMaterialParameterCollectionInstance* MPCInstance, const FName ParameterName, const FVector4 Value)
{
    if (MPCInstance)
    {
       return MPCInstance->SetVectorParameterValue(ParameterName, Value);
    }
 
    return false;
}
 
bool UMaterialParameterCollectionUtilities::UpdateMaterialCollectionScalarValue(UMaterialParameterCollectionInstance* MPCInstance, const FName ParameterName, const float Value)
{
    if (MPCInstance)
    {
        return MPCInstance->SetScalarParameterValue(ParameterName, Value);
    }
 
    return false;
}
 
UMaterialParameterCollectionInstance* UMaterialParameterCollectionUtilities::LoadMaterialParameterCollectionInstance(const UObject* WorldContextObject, const FString& Path)
{
    if (!WorldContextObject || !GEngine)
    {
        return nullptr;
    }
 
    UWorld* World = GEngine->GetWorldFromContextObject(WorldContextObject, EGetWorldErrorMode::LogAndReturnNull);
    UMaterialParameterCollection* Collection = LoadObject<UMaterialParameterCollection>(nullptr, *Path);
    if (Collection && World)
    {
        return World->GetParameterCollectionInstance(Collection);
    }
 
    return nullptr;
}