Files
UnrealEngine/Engine/Source/Editor/MaterialEditor/Private/SMaterialEditorTopologyWidget.cpp
2025-05-18 13:04:45 +08:00

291 lines
9.5 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "SMaterialEditorTopologyWidget.h"
#include "EditorWidgetsModule.h"
#include "AssetRegistry/AssetRegistryModule.h"
#include "MaterialEditor.h"
#include "MaterialInstanceEditor.h"
#include "SubstrateDefinitions.h"
#include "Rendering/SubstrateMaterialShared.h"
#include <functional>
#include "MaterialInstanceEditor.h"
#include "Widgets/Input/SButton.h"
#include "Widgets/Input/SCheckBox.h"
#include "Widgets/Layout/SWrapBox.h"
#include "Widgets/Layout/SScrollBox.h"
#include "Widgets/Layout/SBorder.h"
#include "Widgets/SNullWidget.h"
#include "Widgets/Notifications/SErrorText.h"
#include "AssetThumbnail.h"
#include "MaterialEditor/SGraphSubstrateMaterial.h"
#include "RHIShaderPlatform.h"
#define LOCTEXT_NAMESPACE "SMaterialEditorTopologyWidget"
void SMaterialEditorTopologyWidget::Construct(const FArguments& InArgs, TWeakPtr<IMaterialEditor> InMaterialEditorPtr)
{
MaterialEditorPtr = InMaterialEditorPtr;
if (Substrate::IsSubstrateEnabled())
{
this->ChildSlot
[
SNew(SBorder)
.BorderImage(FAppStyle::Get().GetBrush("ActionableMessage.Border"))
.BorderBackgroundColor(FLinearColor(0.22f, 0.22f, 0.22f, 0.75f))
.Padding(FMargin(5.0f, 5.0f, 5.0f, 5.0f))
[
SNew(SVerticalBox)
+SVerticalBox::Slot()
.AutoHeight()
.HAlign(HAlign_Center)
[
SNew(STextBlock)
.ColorAndOpacity(FLinearColor::White)
.ShadowColorAndOpacity(FLinearColor::Black)
.ShadowOffset(FVector2D::UnitVector)
.Text(LOCTEXT("MaterialTopology", "Material Topology"))
]
+SVerticalBox::Slot()
.AutoHeight()
.Padding(0.0f, 5.0f, 0.0f, 0.0f)
[
SNew(SWrapBox)
.UseAllottedSize(true)
+ SWrapBox::Slot()
.Padding(10.0f)
.HAlign(HAlign_Center)
.VAlign(VAlign_Center)
[
SAssignNew(MaterialBox, SBox)
]
]
]
];
}
else
{
this->ChildSlot
[
SNew(SVerticalBox)
+SVerticalBox::Slot()
.AutoHeight()
.Padding(0.0f, 5.0f, 0.0f, 0.0f)
[
SNew(SWrapBox)
.UseAllottedSize(true)
+SWrapBox::Slot()
.Padding(5.0f)
.HAlign(HAlign_Center)
.VAlign(VAlign_Center)
[
SNew(STextBlock)
.ColorAndOpacity(FLinearColor::Yellow)
.ShadowColorAndOpacity(FLinearColor::Black)
.ShadowOffset(FVector2D::UnitVector)
.Text(LOCTEXT("SubstrateWidgetNotEnable", "Details cannot be shown: Substrate (Beta) is not enabled for this project (See the project settings window, rendering settings section)."))
]
]
];
}
}
TSharedRef<SWidget> SMaterialEditorTopologyWidget::GetContent()
{
return SharedThis(this);
}
SMaterialEditorTopologyWidget::~SMaterialEditorTopologyWidget()
{
}
void SMaterialEditorTopologyWidget::Tick(const FGeometry& AllottedGeometry, const double InCurrentTime, const float InDeltaTime)
{
if (!bUpdateRequested || !Substrate::IsSubstrateEnabled())
{
return;
}
bUpdateRequested = false;
FText SubstrateMaterialDescription;
if (MaterialEditorPtr.IsValid())
{
TSharedPtr<IMaterialEditor> MaterialEditorPinned = MaterialEditorPtr.Pin();
FMaterialResource* MaterialResource = MaterialEditorPinned->GetMaterialInterface()->GetMaterialResource(GMaxRHIFeatureLevel);
if (Cast<UMaterial>(MaterialEditorPinned->GetMaterialInterface()))
{
TSharedPtr<FMaterialEditor> MaterialEditor = StaticCastSharedPtr<FMaterialEditor>(MaterialEditorPinned);
UMaterial* MaterialForStats = MaterialEditor->bStatsFromPreviewMaterial ? MaterialEditor->Material : MaterialEditor->OriginalMaterial;
MaterialResource = MaterialForStats->GetMaterialResource(GMaxRHIFeatureLevel);
}
SubstrateMaterialDescription = FText::FromString(FString(TEXT("SubstrateMaterialDescription")));
if (MaterialResource)
{
FString MaterialDescription;
FString MaterialBudget;
bool bMaterialOutOfBudgetHasBeenSimplified = false;
FMaterialShaderMap* ShaderMap = MaterialResource->GetGameThreadShaderMap();
if (ShaderMap)
{
const FSubstrateMaterialCompilationOutput& CompilationOutput = ShaderMap->GetSubstrateMaterialCompilationOutput();
const uint32 FinalPixelByteCount = CompilationOutput.SubstrateUintPerPixel * sizeof(uint32);
const uint32 FinalPixelClosureCount = CompilationOutput.SubstrateClosureCount;
bMaterialOutOfBudgetHasBeenSimplified = CompilationOutput.bMaterialOutOfBudgetHasBeenSimplified > 0;
// Now generate a visual representation of the material from the topology tree of operators.
if (CompilationOutput.RootOperatorIndex >= 0)
{
const FMaterialLayersFunctions* LayersFunctions = MaterialResource->GetMaterialLayers();
MaterialBox->SetContent(ProcessOperatorAsThumbnails(CompilationOutput, LayersFunctions));
}
else
{
// The tree does not looks sane so generate a visual error without crashing.
auto TreeError = SNew(SErrorText)
.ErrorText(LOCTEXT("TreeError", "Tree Error"))
.BackgroundColor(FSlateColor(EStyleColor::AccentRed));
const TSharedRef<SWidget>& TreeErrorAsShared = TreeError->AsShared();
MaterialBox->SetContent(TreeErrorAsShared);
}
}
else
{
MaterialDescription = TEXT("Shader map not found.");
MaterialBox->SetContent(SNullWidget::NullWidget);
}
}
}
}
static const TSharedRef<SWidget> InternalProcessOperatorAsThumbnails(
const FSubstrateMaterialCompilationOutput& CompilationOutput,
const FSubstrateOperator& Op,
const TArray<FGuid>& InGuid,
const FMaterialLayersFunctions* LayersFunctions,
EStyleColor OverrideColor)
{
const bool bIsCurrent = false;
const EStyleColor Color0 = OverrideColor;
const EStyleColor Color1 = OverrideColor;
switch (Op.OperatorType)
{
case SUBSTRATE_OPERATOR_WEIGHT:
{
const EStyleColor Color = bIsCurrent ? EStyleColor::AccentGreen : OverrideColor;
return InternalProcessOperatorAsThumbnails(CompilationOutput, CompilationOutput.Operators[Op.LeftIndex], InGuid, LayersFunctions, Color);
}
case SUBSTRATE_OPERATOR_VERTICAL:
{
auto VerticalOperator = SNew(SVerticalBox)
+SVerticalBox::Slot()
.AutoHeight()
.VAlign(VAlign_Fill)
.HAlign(HAlign_Fill)
[
InternalProcessOperatorAsThumbnails(CompilationOutput, CompilationOutput.Operators[Op.LeftIndex], InGuid, LayersFunctions, Color0)
]
+ SVerticalBox::Slot()
.AutoHeight()
.VAlign(VAlign_Fill)
.HAlign(HAlign_Fill)
[
InternalProcessOperatorAsThumbnails(CompilationOutput, CompilationOutput.Operators[Op.RightIndex], InGuid, LayersFunctions, Color1)
];
return VerticalOperator->AsShared();
}
case SUBSTRATE_OPERATOR_HORIZONTAL:
case SUBSTRATE_OPERATOR_SELECT:
{
auto HorizontalOperator = SNew(SHorizontalBox)
+SHorizontalBox::Slot()
.AutoWidth()
.VAlign(VAlign_Fill)
.HAlign(HAlign_Fill)
[
InternalProcessOperatorAsThumbnails(CompilationOutput, CompilationOutput.Operators[Op.LeftIndex], InGuid, LayersFunctions, Color0)
]
+SHorizontalBox::Slot()
.AutoWidth()
.VAlign(VAlign_Fill)
.HAlign(HAlign_Fill)
[
InternalProcessOperatorAsThumbnails(CompilationOutput, CompilationOutput.Operators[Op.RightIndex], InGuid, LayersFunctions, Color1)
];
return HorizontalOperator->AsShared();
}
case SUBSTRATE_OPERATOR_ADD:
{
auto HorizontalOperator = SNew(SHorizontalBox)
+SHorizontalBox::Slot()
.AutoWidth()
.VAlign(VAlign_Fill)
.HAlign(HAlign_Fill)
[
InternalProcessOperatorAsThumbnails(CompilationOutput, CompilationOutput.Operators[Op.LeftIndex], InGuid, LayersFunctions, Color0)
]
+SHorizontalBox::Slot()
.AutoWidth()
.VAlign(VAlign_Fill)
.HAlign(HAlign_Fill)
[
InternalProcessOperatorAsThumbnails(CompilationOutput, CompilationOutput.Operators[Op.RightIndex], InGuid, LayersFunctions, Color1)
];
return HorizontalOperator->AsShared();
}
case SUBSTRATE_OPERATOR_BSDF_LEGACY: // legacy BSDF should have been converted to BSDF already.
case SUBSTRATE_OPERATOR_BSDF:
{
int32 ExpressionIndex = INDEX_NONE;
const float ThumbnailSize = 40.0f;
UObject* ThumbnailObject = nullptr;
if(Substrate::IsMaterialLayeringSupportEnabled())
{
const TSharedPtr<FMaterialLayersFunctionsRuntimeGraphCache> LayerTreeCache = LayersFunctions->RuntimeGraphCache;
if (LayerTreeCache)
{
ExpressionIndex = LayerTreeCache->FindExpressionIndex(Op.MaterialExpressionGuid, LayersFunctions);
}
if (ExpressionIndex >= 0)
{
ThumbnailObject = LayerTreeCache->NodePreviewMaterials[ExpressionIndex];
}
}
const TSharedPtr<FAssetThumbnail> AssetThumbnail = MakeShareable(new FAssetThumbnail(ThumbnailObject, ThumbnailSize, ThumbnailSize, UThumbnailManager::Get().GetSharedThumbnailPool()));
TSharedRef<SWidget> ThumbnailWidget = SNew(SBorder)
.Padding(2.0f)
[
AssetThumbnail->MakeThumbnailWidget()
];
AssetThumbnail->SetRealTime(true);
// ThumbnailWidget->SetOnMouseDoubleClick(FPointerEventHandler::CreateSP(this, &SMaterialSubstrateTree::OnThumbnailDoubleClick, InAssociation, InIndex));
return ThumbnailWidget;
}
}
static FString NoVisualization = FString(TEXT("Tree Operator Error"));
auto TreeOperatorError = SNew(SErrorText)
.ErrorText(FText::FromString(NoVisualization))
.BackgroundColor(FSlateColor(EStyleColor::AccentRed));
return TreeOperatorError->AsShared();
}
const TSharedRef<SWidget> SMaterialEditorTopologyWidget::ProcessOperatorAsThumbnails(const FSubstrateMaterialCompilationOutput& CompilationOutput, const FMaterialLayersFunctions* LayersFunctions)
{
return InternalProcessOperatorAsThumbnails(CompilationOutput, CompilationOutput.Operators[CompilationOutput.RootOperatorIndex], TArray<FGuid>(), LayersFunctions, EStyleColor::MAX);
}
#undef LOCTEXT_NAMESPACE