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#rb luc.eygasier #robomerge private-frosty [CL 16737956 by Sebastien Lussier in ue5-main branch]
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "HLODBuilderMeshSimplify.h"
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#include "Algo/ForEach.h"
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#include "Algo/Transform.h"
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#include "Engine/StaticMesh.h"
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#include "Materials/Material.h"
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#include "Components/StaticMeshComponent.h"
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#include "WorldPartition/HLOD/HLODActor.h"
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#include "WorldPartition/HLOD/HLODLayer.h"
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#include "IMeshMergeUtilities.h"
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#include "MeshMergeModule.h"
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#include "Modules/ModuleManager.h"
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#include "HLODBuilderInstancing.h"
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TArray<UPrimitiveComponent*> FHLODBuilder_MeshSimplify::CreateComponents(AWorldPartitionHLOD* InHLODActor, const UHLODLayer* InHLODLayer, const TArray<UPrimitiveComponent*>& InSubComponents)
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{
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TRACE_CPUPROFILER_EVENT_SCOPE(FHLODBuilder_MeshSimplify::CreateComponents);
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TArray<UObject*> Assets;
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FCreateProxyDelegate ProxyDelegate;
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ProxyDelegate.BindLambda([&Assets](const FGuid Guid, TArray<UObject*>& InAssetsCreated) { Assets = InAssetsCreated; });
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TArray<UStaticMeshComponent*> StaticMeshComponents;
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TArray<UPrimitiveComponent*> InstancedComponents;
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// Filter the input components
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for (UPrimitiveComponent* SubComponent : InSubComponents)
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{
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if (!SubComponent)
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{
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continue;
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}
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switch (SubComponent->HLODBatchingPolicy)
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{
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case EHLODBatchingPolicy::None:
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if (UStaticMeshComponent* SMC = Cast<UStaticMeshComponent>(SubComponent))
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{
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StaticMeshComponents.Add(SMC);
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}
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break;
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case EHLODBatchingPolicy::Instancing:
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InstancedComponents.Add(SubComponent);
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break;
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case EHLODBatchingPolicy::MeshSection:
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InstancedComponents.Add(SubComponent);
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UE_LOG(LogHLODBuilder, Warning, TEXT("EHLODBatchingPolicy::MeshSection is not yet supported by the MeshApproximate builder."));
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break;
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}
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}
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const IMeshMergeUtilities& MeshMergeUtilities = FModuleManager::Get().LoadModuleChecked<IMeshMergeModule>("MeshMergeUtilities").GetUtilities();
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MeshMergeUtilities.CreateProxyMesh(StaticMeshComponents, InHLODLayer->GetMeshSimplifySettings(), InHLODLayer->GetHLODMaterial().LoadSynchronous(), InHLODActor->GetPackage(), InHLODActor->GetActorLabel(), FGuid::NewGuid(), ProxyDelegate, true);
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UStaticMeshComponent* Component = nullptr;
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Algo::ForEach(Assets, [this, InHLODActor, &Component](UObject* Asset)
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{
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Asset->ClearFlags(RF_Public | RF_Standalone);
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if (Cast<UStaticMesh>(Asset))
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{
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Component = NewObject<UStaticMeshComponent>(InHLODActor);
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Component->SetStaticMesh(static_cast<UStaticMesh*>(Asset));
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DisableCollisions(Component);
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}
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});
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TArray<UPrimitiveComponent*> Components;
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Components.Add(Component);
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// Batch instances
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if (InstancedComponents.Num())
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{
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FHLODBuilder_Instancing InstancingHLODBuilder;
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Components.Append(InstancingHLODBuilder.CreateComponents(InHLODActor, nullptr, InstancedComponents));
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}
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return Components;
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}
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