uint32 UMaterialGraphSchema::GetMaterialValueType(const UEdGraphPin* MaterialPin)
{
if (MaterialPin->Direction == EGPD_Output)
{
UMaterialGraphNode* OwningNode = CastChecked<UMaterialGraphNode>(MaterialPin->GetOwningNode());
return OwningNode->GetOutputType(MaterialPin);
}
else
{
UMaterialGraphNode_Base* OwningNode = CastChecked<UMaterialGraphNode_Base>(MaterialPin->GetOwningNode());
return OwningNode->GetInputType(MaterialPin);
}
}
bool UMaterialGraphSchema::ArePinsCompatible(const UEdGraphPin* InputPin, const UEdGraphPin* OutputPin, FText& ResponseMessage) const
{
UMaterialGraphNode_Base* InputNode = CastChecked<UMaterialGraphNode_Base>(InputPin->GetOwningNode());
UMaterialGraphNode* OutputNode = CastChecked<UMaterialGraphNode>(OutputPin->GetOwningNode());
uint32 InputType = InputNode->GetInputType(InputPin);
uint32 OutputType = OutputNode->GetOutputType(OutputPin);
bool bPinsCompatible = CanConnectMaterialValueTypes(InputType, OutputType);
if (!bPinsCompatible)
{
TArray<FText> InputDescriptions;
TArray<FText> OutputDescriptions;
GetMaterialValueTypeDescriptions(InputType, InputDescriptions);
GetMaterialValueTypeDescriptions(OutputType, OutputDescriptions);
FString CombinedInputDescription;
FString CombinedOutputDescription;
for (int32 Index = 0; Index < InputDescriptions.Num(); ++Index)
{
if ( CombinedInputDescription.Len() > 0 )
{
CombinedInputDescription += TEXT(", ");
}
CombinedInputDescription += InputDescriptions[Index].ToString();
}
for (int32 Index = 0; Index < OutputDescriptions.Num(); ++Index)
{
if ( CombinedOutputDescription.Len() > 0 )
{
CombinedOutputDescription += TEXT(", ");
}
CombinedOutputDescription += OutputDescriptions[Index].ToString();
}
FFormatNamedArguments Args;
Args.Add( TEXT("InputType"), FText::FromString(CombinedInputDescription) );
Args.Add( TEXT("OutputType"), FText::FromString(CombinedOutputDescription) );
ResponseMessage = FText::Format( LOCTEXT("IncompatibleDesc", "{OutputType} is not compatible with {InputType}"), Args );
}
return bPinsCompatible;
}
