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2e34b6a655
For old geometry collections, keep the old behavior so that vertex colors are not changed unexpectedly on existing assets. Add a bool on the UGeometryCollection asset object to let user control whether the conversion is performed. #rb brice.criswell [CL 25934820 by robomerge in ue5-main branch]
1712 lines
60 KiB
C++
1712 lines
60 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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/*=============================================================================
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GeometryCollection.cpp: UGeometryCollection methods.
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=============================================================================*/
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#include "GeometryCollection/GeometryCollectionObject.h"
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#include "GeometryCollection/GeometryCollection.h"
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#include "GeometryCollection/GeometryCollectionCache.h"
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#include "GeometryCollection/GeometryCollectionRenderData.h"
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#include "Materials/Material.h"
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#include "UObject/DestructionObjectVersion.h"
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#include "UObject/UE5MainStreamObjectVersion.h"
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#include "UObject/FortniteMainBranchObjectVersion.h"
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#include "Serialization/ArchiveCountMem.h"
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#include "HAL/IConsoleManager.h"
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#include "Interfaces/ITargetPlatform.h"
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#include "UObject/Package.h"
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#include "Materials/MaterialInstance.h"
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#include "ProfilingDebugging/CookStats.h"
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#include "EngineUtils.h"
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#include "Engine/Engine.h"
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#include "Engine/StaticMesh.h"
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#include "PhysicsEngine/PhysicsSettings.h"
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#include "EditorFramework/AssetImportData.h"
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#include "Rendering/NaniteResources.h"
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#include "Engine/AssetUserData.h"
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#include "PhysicalMaterials/PhysicalMaterial.h"
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#if WITH_EDITOR
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#include "GeometryCollection/DerivedDataGeometryCollectionCooker.h"
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#include "GeometryCollection/GeometryCollectionConvexUtility.h"
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#include "GeometryCollection/GeometryCollectionEngineSizeSpecificUtility.h"
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#include "GeometryCollection/GeometryCollectionComponent.h"
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#include "DerivedDataCacheInterface.h"
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#include "Serialization/MemoryReader.h"
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#include "NaniteBuilder.h"
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#include "Rendering/NaniteResources.h"
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// TODO: Temp until new asset-agnostic builder API
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#include "StaticMeshResources.h"
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#endif
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#include "GeometryCollection/GeometryCollectionSimulationCoreTypes.h"
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#include "Chaos/ChaosArchive.h"
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#include "Chaos/MassProperties.h"
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#include "GeometryCollectionProxyData.h"
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#include "GeometryCollection/Facades/CollectionHierarchyFacade.h"
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#include "GeometryCollection/Facades/CollectionInstancedMeshFacade.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(GeometryCollectionObject)
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DEFINE_LOG_CATEGORY_STATIC(LogGeometryCollectionInternal, Log, All);
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bool GeometryCollectionAssetForceStripOnCook = false;
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FAutoConsoleVariableRef CVarGeometryCollectionBypassPhysicsAttributes(
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TEXT("p.GeometryCollectionAssetForceStripOnCook"),
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GeometryCollectionAssetForceStripOnCook,
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TEXT("Bypass the construction of simulation properties when all bodies are simply cached for playback."));
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bool bGeometryCollectionEnableForcedConvexGenerationInSerialize = true;
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FAutoConsoleVariableRef CVarGeometryCollectionEnableForcedConvexGenerationInSerialize(
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TEXT("p.GeometryCollectionEnableForcedConvexGenerationInSerialize"),
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bGeometryCollectionEnableForcedConvexGenerationInSerialize,
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TEXT("Enable generation of convex geometry on older destruction files.[def:true]"));
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bool bGeometryCollectionAlwaysRecreateSimulationData = false;
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FAutoConsoleVariableRef CVarGeometryCollectionAlwaysRecreateSimulationData(
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TEXT("p.GeometryCollectionAlwaysRecreateSimulationData"),
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bGeometryCollectionAlwaysRecreateSimulationData,
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TEXT("always recreate the simulation data even if the simulation data is not marked as dirty - this has runtime cost in editor - only use as a last resort if default has issues [def:false]"));
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#if ENABLE_COOK_STATS
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namespace GeometryCollectionCookStats
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{
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static FCookStats::FDDCResourceUsageStats UsageStats;
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static FCookStatsManager::FAutoRegisterCallback RegisterCookStats([](FCookStatsManager::AddStatFuncRef AddStat)
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{
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UsageStats.LogStats(AddStat, TEXT("GeometryCollection.Usage"), TEXT(""));
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});
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}
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#endif
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static constexpr float DefaultMaxSizeValue = 99999.9;
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UGeometryCollection::UGeometryCollection(const FObjectInitializer& ObjectInitializer)
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: Super(ObjectInitializer)
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#if WITH_EDITOR
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, bManualDataCreate(false)
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#endif
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, EnableClustering(true)
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, ClusterGroupIndex(0)
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, MaxClusterLevel(100)
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, DamageModel(EDamageModelTypeEnum::Chaos_Damage_Model_UserDefined_Damage_Threshold)
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, DamageThreshold({ 500000.f, 50000.f, 5000.f })
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, bUseSizeSpecificDamageThreshold(false)
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, PerClusterOnlyDamageThreshold(false)
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, ClusterConnectionType(EClusterConnectionTypeEnum::Chaos_MinimalSpanningSubsetDelaunayTriangulation)
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, ConnectionGraphBoundsFilteringMargin(0)
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, bUseFullPrecisionUVs(false)
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, bStripOnCook(false)
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, bStripRenderDataOnCook(false)
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, EnableNanite(false)
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#if WITH_EDITORONLY_DATA
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, CollisionType_DEPRECATED(ECollisionTypeEnum::Chaos_Volumetric)
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, ImplicitType_DEPRECATED(EImplicitTypeEnum::Chaos_Implicit_Convex)
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, MinLevelSetResolution_DEPRECATED(10)
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, MaxLevelSetResolution_DEPRECATED(10)
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, MinClusterLevelSetResolution_DEPRECATED(50)
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, MaxClusterLevelSetResolution_DEPRECATED(50)
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, CollisionObjectReductionPercentage_DEPRECATED(0.0f)
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#endif
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, bDensityFromPhysicsMaterial(false)
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, bMassAsDensity(true)
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, Mass(2500.0f)
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, MinimumMassClamp(0.1f)
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, bImportCollisionFromSource(false)
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, bScaleOnRemoval(true)
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, bRemoveOnMaxSleep(false)
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, MaximumSleepTime(5.0, 10.0)
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, RemovalDuration(2.5, 5.0)
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, bSlowMovingAsSleeping(true)
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, SlowMovingVelocityThreshold(1)
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, EnableRemovePiecesOnFracture_DEPRECATED(false)
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, GeometryCollection(new FGeometryCollection())
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{
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PersistentGuid = FGuid::NewGuid();
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InvalidateCollection();
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#if WITH_EDITOR
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SimulationDataGuid = StateGuid;
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RenderDataGuid = StateGuid;
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bStripOnCook = GeometryCollectionAssetForceStripOnCook;
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#endif
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PhysicsMaterial = GEngine? GEngine->DefaultPhysMaterial: nullptr;
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}
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FGeometryCollectionLevelSetData::FGeometryCollectionLevelSetData()
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: MinLevelSetResolution(5)
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, MaxLevelSetResolution(10)
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, MinClusterLevelSetResolution(25)
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, MaxClusterLevelSetResolution(50)
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{
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}
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FGeometryCollectionCollisionParticleData::FGeometryCollectionCollisionParticleData()
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: CollisionParticlesFraction(1.0f)
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, MaximumCollisionParticles(60)
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{
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}
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FGeometryCollectionCollisionTypeData::FGeometryCollectionCollisionTypeData()
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: CollisionType(ECollisionTypeEnum::Chaos_Volumetric)
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, ImplicitType(EImplicitTypeEnum::Chaos_Implicit_Convex)
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, LevelSet()
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, CollisionParticles()
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, CollisionObjectReductionPercentage(0.0f)
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, CollisionMarginFraction(0.f)
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{
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}
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FGeometryCollectionSizeSpecificData::FGeometryCollectionSizeSpecificData()
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: MaxSize(DefaultMaxSizeValue)
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, CollisionShapes({ FGeometryCollectionCollisionTypeData()})
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#if WITH_EDITORONLY_DATA
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, CollisionType_DEPRECATED(ECollisionTypeEnum::Chaos_Volumetric)
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, ImplicitType_DEPRECATED(EImplicitTypeEnum::Chaos_Implicit_Convex)
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, MinLevelSetResolution_DEPRECATED(5)
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, MaxLevelSetResolution_DEPRECATED(10)
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, MinClusterLevelSetResolution_DEPRECATED(25)
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, MaxClusterLevelSetResolution_DEPRECATED(50)
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, CollisionObjectReductionPercentage_DEPRECATED(0)
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, CollisionParticlesFraction_DEPRECATED(1.f)
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, MaximumCollisionParticles_DEPRECATED(60)
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#endif
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, DamageThreshold(5000.0)
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{
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}
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bool FGeometryCollectionSizeSpecificData::Serialize(FArchive& Ar)
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{
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Ar.UsingCustomVersion(FUE5MainStreamObjectVersion::GUID);
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Ar.UsingCustomVersion(FPhysicsObjectVersion::GUID);
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return false; //We only have this function to mark custom GUID. Still want serialize tagged properties
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}
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#if WITH_EDITORONLY_DATA
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void FGeometryCollectionSizeSpecificData::PostSerialize(const FArchive& Ar)
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{
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const int32 PhysicsObjectVersion = Ar.CustomVer(FPhysicsObjectVersion::GUID);
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const int32 StreamObjectVersion = Ar.CustomVer(FUE5MainStreamObjectVersion::GUID);
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// make sure to load back the deprecated values in the new structure if necessary
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// IMPORTANT : this was merge backed in UE4 and PhysicsObjectVersion had to be used,
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// that's why we need to test both version to make sure backward asset compatibility is maintained
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if (Ar.IsLoading() && (
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StreamObjectVersion < FUE5MainStreamObjectVersion::GeometryCollectionUserDefinedCollisionShapes &&
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PhysicsObjectVersion < FPhysicsObjectVersion::GeometryCollectionUserDefinedCollisionShapes
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))
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{
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if (CollisionShapes.Num())
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{
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// @todo(chaos destruction collisions) : Add support for many
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CollisionShapes[0].CollisionType = CollisionType_DEPRECATED;
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CollisionShapes[0].ImplicitType = ImplicitType_DEPRECATED;
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CollisionShapes[0].CollisionObjectReductionPercentage = CollisionObjectReductionPercentage_DEPRECATED;
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CollisionShapes[0].CollisionMarginFraction = UPhysicsSettings::Get()->SolverOptions.CollisionMarginFraction;
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CollisionShapes[0].CollisionParticles.CollisionParticlesFraction = CollisionParticlesFraction_DEPRECATED;
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CollisionShapes[0].CollisionParticles.MaximumCollisionParticles = MaximumCollisionParticles_DEPRECATED;
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CollisionShapes[0].LevelSet.MinLevelSetResolution = MinLevelSetResolution_DEPRECATED;
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CollisionShapes[0].LevelSet.MaxLevelSetResolution = MaxLevelSetResolution_DEPRECATED;
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CollisionShapes[0].LevelSet.MinClusterLevelSetResolution = MinClusterLevelSetResolution_DEPRECATED;
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CollisionShapes[0].LevelSet.MaxClusterLevelSetResolution = MaxClusterLevelSetResolution_DEPRECATED;
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}
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}
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}
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#endif
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void FillSharedSimulationSizeSpecificData(FSharedSimulationSizeSpecificData& ToData, const FGeometryCollectionSizeSpecificData& FromData)
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{
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ToData.MaxSize = FromData.MaxSize;
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ToData.CollisionShapesData.SetNumUninitialized(FromData.CollisionShapes.Num());
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if (FromData.CollisionShapes.Num())
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{
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for (int i = 0; i < FromData.CollisionShapes.Num(); i++)
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{
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ToData.CollisionShapesData[i].CollisionType = FromData.CollisionShapes[i].CollisionType;
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ToData.CollisionShapesData[i].ImplicitType = FromData.CollisionShapes[i].ImplicitType;
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ToData.CollisionShapesData[i].LevelSetData.MinLevelSetResolution = FromData.CollisionShapes[i].LevelSet.MinLevelSetResolution;
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ToData.CollisionShapesData[i].LevelSetData.MaxLevelSetResolution = FromData.CollisionShapes[i].LevelSet.MaxLevelSetResolution;
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ToData.CollisionShapesData[i].LevelSetData.MinClusterLevelSetResolution = FromData.CollisionShapes[i].LevelSet.MinClusterLevelSetResolution;
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ToData.CollisionShapesData[i].LevelSetData.MaxClusterLevelSetResolution = FromData.CollisionShapes[i].LevelSet.MaxClusterLevelSetResolution;
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ToData.CollisionShapesData[i].CollisionObjectReductionPercentage = FromData.CollisionShapes[i].CollisionObjectReductionPercentage;
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ToData.CollisionShapesData[i].CollisionMarginFraction = FromData.CollisionShapes[i].CollisionMarginFraction;
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ToData.CollisionShapesData[i].CollisionParticleData.CollisionParticlesFraction = FromData.CollisionShapes[i].CollisionParticles.CollisionParticlesFraction;
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ToData.CollisionShapesData[i].CollisionParticleData.MaximumCollisionParticles = FromData.CollisionShapes[i].CollisionParticles.MaximumCollisionParticles;
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}
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}
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ToData.DamageThreshold = FromData.DamageThreshold;
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}
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FGeometryCollectionSizeSpecificData UGeometryCollection::GeometryCollectionSizeSpecificDataDefaults()
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{
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FGeometryCollectionSizeSpecificData Data;
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Data.MaxSize = DefaultMaxSizeValue;
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if (Data.CollisionShapes.Num())
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{
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Data.CollisionShapes[0].CollisionType = ECollisionTypeEnum::Chaos_Volumetric;
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Data.CollisionShapes[0].ImplicitType = EImplicitTypeEnum::Chaos_Implicit_Capsule;
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Data.CollisionShapes[0].LevelSet.MinLevelSetResolution = 5;
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Data.CollisionShapes[0].LevelSet.MaxLevelSetResolution = 10;
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Data.CollisionShapes[0].LevelSet.MinClusterLevelSetResolution = 25;
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Data.CollisionShapes[0].LevelSet.MaxClusterLevelSetResolution = 50;
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Data.CollisionShapes[0].CollisionObjectReductionPercentage = 1.0;
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Data.CollisionShapes[0].CollisionMarginFraction = UPhysicsSettings::Get()->SolverOptions.CollisionMarginFraction;
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Data.CollisionShapes[0].CollisionParticles.CollisionParticlesFraction = 1.0;
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Data.CollisionShapes[0].CollisionParticles.MaximumCollisionParticles = 60;
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}
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Data.DamageThreshold = 5000.0f;
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return Data;
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}
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void UGeometryCollection::ValidateSizeSpecificDataDefaults()
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{
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auto HasDefault = [](const TArray<FGeometryCollectionSizeSpecificData>& DatasIn)
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{
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for (const FGeometryCollectionSizeSpecificData& Data : DatasIn)
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{
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if (Data.MaxSize >= DefaultMaxSizeValue)
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{
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return true;
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}
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}
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return false;
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};
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if (!SizeSpecificData.Num() || !HasDefault(SizeSpecificData))
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{
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FGeometryCollectionSizeSpecificData Data = GeometryCollectionSizeSpecificDataDefaults();
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if (Data.CollisionShapes.Num())
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{
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#if WITH_EDITORONLY_DATA
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Data.CollisionShapes[0].CollisionType = CollisionType_DEPRECATED;
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Data.CollisionShapes[0].ImplicitType = ImplicitType_DEPRECATED;
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Data.CollisionShapes[0].LevelSet.MinLevelSetResolution = MinLevelSetResolution_DEPRECATED;
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Data.CollisionShapes[0].LevelSet.MaxLevelSetResolution = MaxLevelSetResolution_DEPRECATED;
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Data.CollisionShapes[0].LevelSet.MinClusterLevelSetResolution = MinClusterLevelSetResolution_DEPRECATED;
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Data.CollisionShapes[0].LevelSet.MaxClusterLevelSetResolution = MaxClusterLevelSetResolution_DEPRECATED;
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Data.CollisionShapes[0].CollisionObjectReductionPercentage = CollisionObjectReductionPercentage_DEPRECATED;
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Data.CollisionShapes[0].CollisionMarginFraction = UPhysicsSettings::Get()->SolverOptions.CollisionMarginFraction;
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#endif
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if (Data.CollisionShapes[0].ImplicitType == EImplicitTypeEnum::Chaos_Implicit_LevelSet)
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{
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Data.CollisionShapes[0].CollisionType = ECollisionTypeEnum::Chaos_Surface_Volumetric;
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}
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}
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SizeSpecificData.Add(Data);
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}
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check(SizeSpecificData.Num());
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}
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// update cachedroot index using the current hierarchy setup
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void UGeometryCollection::UpdateRootIndex()
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{
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RootIndex = INDEX_NONE;
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if (GeometryCollection)
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{
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Chaos::Facades::FCollectionHierarchyFacade HierarchyFacade(*GeometryCollection);
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RootIndex = HierarchyFacade.GetRootIndex();
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}
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}
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void UGeometryCollection::UpdateGeometryDependentProperties()
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{
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#if WITH_EDITOR
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// Note: Currently, computing convex hulls also always computes proximity (if missing) as well as volumes and size.
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// If adding a condition where we do not compute convex hulls, make sure to still compute proximity, volumes and size here
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UpdateConvexGeometry();
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#endif
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}
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void UGeometryCollection::UpdateConvexGeometryIfMissing()
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{
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const bool bConvexAttributeMissing = !GeometryCollection->HasAttribute("ConvexHull", "Convex");
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if (GeometryCollection && bConvexAttributeMissing)
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{
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UpdateConvexGeometry();
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}
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}
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void UGeometryCollection::UpdateConvexGeometry()
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{
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#if WITH_EDITOR
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if (GeometryCollection)
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{
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FGeometryCollectionConvexPropertiesInterface::FConvexCreationProperties ConvexProperties = GeometryCollection->GetConvexProperties();
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FGeometryCollectionConvexUtility::CreateNonOverlappingConvexHullData(GeometryCollection.Get(), ConvexProperties.FractionRemove,
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ConvexProperties.SimplificationThreshold, ConvexProperties.CanExceedFraction, ConvexProperties.RemoveOverlaps, ConvexProperties.OverlapRemovalShrinkPercent);
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InvalidateCollection();
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}
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#endif
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}
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void UGeometryCollection::PostInitProperties()
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{
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#if WITH_EDITORONLY_DATA
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if (!HasAnyFlags(RF_ClassDefaultObject))
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{
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AssetImportData = NewObject<UAssetImportData>(this, TEXT("AssetImportData"));
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}
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#endif
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Super::PostInitProperties();
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}
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float UGeometryCollection::GetMassOrDensity(bool& bOutIsDensity) const
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{
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bOutIsDensity = bMassAsDensity;
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float MassOrDensity = bMassAsDensity ? Chaos::KgM3ToKgCm3(Mass) : Mass;
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if (bDensityFromPhysicsMaterial)
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{
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UPhysicalMaterial* PhysicsMaterialForDensity = PhysicsMaterial;
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if (!PhysicsMaterialForDensity)
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{
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PhysicsMaterialForDensity = GEngine ? GEngine->DefaultPhysMaterial : nullptr;
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}
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if (ensureMsgf(PhysicsMaterialForDensity, TEXT("bDensityFromPhysicsMaterial is true but no physics material has been set (and engine default cannot be found )")))
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{
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// materials only provide density
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bOutIsDensity = true;
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MassOrDensity = Chaos::GCm3ToKgCm3(PhysicsMaterial->Density);
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}
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}
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return MassOrDensity;
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}
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void UGeometryCollection::GetSharedSimulationParams(FSharedSimulationParameters& OutParams) const
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{
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const FGeometryCollectionSizeSpecificData& SizeSpecificDefault = GetDefaultSizeSpecificData();
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OutParams.Mass = GetMassOrDensity(OutParams.bMassAsDensity);
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OutParams.MinimumMassClamp = MinimumMassClamp;
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FGeometryCollectionSizeSpecificData InfSize;
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if (SizeSpecificDefault.CollisionShapes.Num())
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{
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InfSize.CollisionShapes.SetNum(1); // @todo(chaos destruction collisions) : Add support for multiple shapes.
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OutParams.MaximumCollisionParticleCount = SizeSpecificDefault.CollisionShapes[0].CollisionParticles.MaximumCollisionParticles;
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ECollisionTypeEnum SelectedCollisionType = SizeSpecificDefault.CollisionShapes[0].CollisionType;
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if (SelectedCollisionType == ECollisionTypeEnum::Chaos_Volumetric && SizeSpecificDefault.CollisionShapes[0].ImplicitType == EImplicitTypeEnum::Chaos_Implicit_LevelSet)
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{
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UE_LOG(LogGeometryCollectionInternal, Verbose, TEXT("LevelSet geometry selected but non-particle collisions selected. Forcing particle-implicit collisions for %s"), *GetPathName());
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SelectedCollisionType = ECollisionTypeEnum::Chaos_Surface_Volumetric;
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}
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InfSize.CollisionShapes[0].CollisionType = SelectedCollisionType;
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InfSize.CollisionShapes[0].ImplicitType = SizeSpecificDefault.CollisionShapes[0].ImplicitType;
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InfSize.CollisionShapes[0].LevelSet.MinLevelSetResolution = SizeSpecificDefault.CollisionShapes[0].LevelSet.MinLevelSetResolution;
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InfSize.CollisionShapes[0].LevelSet.MaxLevelSetResolution = SizeSpecificDefault.CollisionShapes[0].LevelSet.MaxLevelSetResolution;
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InfSize.CollisionShapes[0].LevelSet.MinClusterLevelSetResolution = SizeSpecificDefault.CollisionShapes[0].LevelSet.MinClusterLevelSetResolution;
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InfSize.CollisionShapes[0].LevelSet.MaxClusterLevelSetResolution = SizeSpecificDefault.CollisionShapes[0].LevelSet.MaxClusterLevelSetResolution;
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InfSize.CollisionShapes[0].CollisionObjectReductionPercentage = SizeSpecificDefault.CollisionShapes[0].CollisionObjectReductionPercentage;
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InfSize.CollisionShapes[0].CollisionMarginFraction = SizeSpecificDefault.CollisionShapes[0].CollisionMarginFraction;
|
|
InfSize.CollisionShapes[0].CollisionParticles.CollisionParticlesFraction = SizeSpecificDefault.CollisionShapes[0].CollisionParticles.CollisionParticlesFraction;
|
|
InfSize.CollisionShapes[0].CollisionParticles.MaximumCollisionParticles = SizeSpecificDefault.CollisionShapes[0].CollisionParticles.MaximumCollisionParticles;
|
|
}
|
|
InfSize.MaxSize = TNumericLimits<float>::Max();
|
|
OutParams.SizeSpecificData.SetNum(SizeSpecificData.Num() + 1);
|
|
FillSharedSimulationSizeSpecificData(OutParams.SizeSpecificData[0], InfSize);
|
|
|
|
for (int32 Idx = 0; Idx < SizeSpecificData.Num(); ++Idx)
|
|
{
|
|
FillSharedSimulationSizeSpecificData(OutParams.SizeSpecificData[Idx+1], SizeSpecificData[Idx]);
|
|
}
|
|
|
|
OutParams.bUseImportedCollisionImplicits = bImportCollisionFromSource;
|
|
|
|
OutParams.SizeSpecificData.Sort(); //can we do this at editor time on post edit change?
|
|
}
|
|
|
|
void UGeometryCollection::Reset()
|
|
{
|
|
if (GeometryCollection.IsValid())
|
|
{
|
|
Modify();
|
|
GeometryCollection->Reset();
|
|
Materials.Empty();
|
|
EmbeddedGeometryExemplar.Empty();
|
|
AutoInstanceMeshes.Empty();
|
|
InvalidateCollection();
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::ResetFrom(const FManagedArrayCollection& InCollection, const TArray<UMaterial*>& InMaterials, bool bHasInternalMaterials)
|
|
{
|
|
if (GeometryCollection.IsValid())
|
|
{
|
|
Reset();
|
|
|
|
InCollection.CopyTo(GeometryCollection.Get());
|
|
|
|
// todo(Chaos) : we could certainly run a "dependent attribute update method here instead of having to known about convex specifically
|
|
UpdateConvexGeometryIfMissing();
|
|
|
|
Materials.Append(InMaterials);
|
|
InitializeMaterials(bHasInternalMaterials);
|
|
}
|
|
}
|
|
|
|
/** AppendGeometry */
|
|
int32 UGeometryCollection::AppendGeometry(const UGeometryCollection & Element, bool ReindexAllMaterials, const FTransform& TransformRoot)
|
|
{
|
|
Modify();
|
|
InvalidateCollection();
|
|
|
|
// add all materials
|
|
// if there are none, we assume all material assignments in Element are shared by this GeometryCollection
|
|
// otherwise, we assume all assignments come from the contained materials
|
|
int32 MaterialIDOffset = 0;
|
|
if (Element.Materials.Num() > 0)
|
|
{
|
|
MaterialIDOffset = Materials.Num();
|
|
Materials.Append(Element.Materials);
|
|
}
|
|
|
|
return GeometryCollection->AppendGeometry(*Element.GetGeometryCollection(), MaterialIDOffset, ReindexAllMaterials, TransformRoot);
|
|
}
|
|
|
|
/** NumElements */
|
|
int32 UGeometryCollection::NumElements(const FName & Group) const
|
|
{
|
|
return GeometryCollection->NumElements(Group);
|
|
}
|
|
|
|
/** RemoveElements */
|
|
void UGeometryCollection::RemoveElements(const FName & Group, const TArray<int32>& SortedDeletionList)
|
|
{
|
|
Modify();
|
|
GeometryCollection->RemoveElements(Group, SortedDeletionList);
|
|
InvalidateCollection();
|
|
}
|
|
|
|
int UGeometryCollection::GetDefaultSizeSpecificDataIndex() const
|
|
{
|
|
int LargestIndex = INDEX_NONE;
|
|
float MaxSize = TNumericLimits<float>::Lowest();
|
|
for (int i = 0; i < SizeSpecificData.Num(); i++)
|
|
{
|
|
const float SizeSpecificDataMaxSize = SizeSpecificData[i].MaxSize;
|
|
if (MaxSize < SizeSpecificDataMaxSize)
|
|
{
|
|
MaxSize = SizeSpecificDataMaxSize;
|
|
LargestIndex = i;
|
|
}
|
|
}
|
|
check(LargestIndex != INDEX_NONE && LargestIndex < SizeSpecificData.Num());
|
|
return LargestIndex;
|
|
}
|
|
|
|
/** Size Specific Data Access */
|
|
FGeometryCollectionSizeSpecificData& UGeometryCollection::GetDefaultSizeSpecificData()
|
|
{
|
|
if (!SizeSpecificData.Num())
|
|
{
|
|
SizeSpecificData.Add(GeometryCollectionSizeSpecificDataDefaults());
|
|
}
|
|
const int DefaultSizeIndex = GetDefaultSizeSpecificDataIndex();
|
|
return SizeSpecificData[DefaultSizeIndex];
|
|
}
|
|
|
|
const FGeometryCollectionSizeSpecificData& UGeometryCollection::GetDefaultSizeSpecificData() const
|
|
{
|
|
ensure(SizeSpecificData.Num());
|
|
const int DefaultSizeIndex = GetDefaultSizeSpecificDataIndex();
|
|
return SizeSpecificData[DefaultSizeIndex];
|
|
}
|
|
|
|
/** ReindexMaterialSections */
|
|
void UGeometryCollection::ReindexMaterialSections()
|
|
{
|
|
Modify();
|
|
GeometryCollection->ReindexMaterials();
|
|
InvalidateCollection();
|
|
}
|
|
|
|
void UGeometryCollection::InitializeMaterials(bool bHasLegacyInternalMaterialsPairs)
|
|
{
|
|
Modify();
|
|
|
|
// Initialize the BoneSelectedMaterial separate from the materials on the collection
|
|
BoneSelectedMaterial = LoadObject<UMaterialInterface>(nullptr, GetSelectedMaterialPath(), nullptr, LOAD_None, nullptr);
|
|
|
|
TManagedArray<int32>& MaterialIDs = GeometryCollection->MaterialID;
|
|
|
|
// normally we filter out instances of the selection material ID, but if it's actually used on any face we have to keep it
|
|
bool bBoneSelectedMaterialIsUsed = false;
|
|
for (int32 FaceIdx = 0; FaceIdx < MaterialIDs.Num(); ++FaceIdx)
|
|
{
|
|
int32 FaceMaterialID = MaterialIDs[FaceIdx];
|
|
if (FaceMaterialID < Materials.Num() && Materials[FaceMaterialID] == BoneSelectedMaterial)
|
|
{
|
|
bBoneSelectedMaterialIsUsed = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
TArray<UMaterialInterface*> FinalMaterials;
|
|
if (bHasLegacyInternalMaterialsPairs)
|
|
{
|
|
// We're assuming that all materials are arranged in pairs, so first we collect these.
|
|
using FMaterialPair = TPair<UMaterialInterface*, UMaterialInterface*>;
|
|
TSet<FMaterialPair> MaterialSet;
|
|
for (int32 MaterialIndex = 0; MaterialIndex < Materials.Num(); ++MaterialIndex)
|
|
{
|
|
UMaterialInterface* ExteriorMaterial = Materials[MaterialIndex];
|
|
if (ExteriorMaterial == BoneSelectedMaterial && !bBoneSelectedMaterialIsUsed) // skip unused bone selected material
|
|
{
|
|
continue;
|
|
}
|
|
|
|
// If we have an odd number of materials, the last material duplicates itself.
|
|
UMaterialInterface* InteriorMaterial = Materials[MaterialIndex];
|
|
while (++MaterialIndex < Materials.Num())
|
|
{
|
|
if (Materials[MaterialIndex] == BoneSelectedMaterial && !bBoneSelectedMaterialIsUsed) // skip bone selected material
|
|
{
|
|
continue;
|
|
}
|
|
InteriorMaterial = Materials[MaterialIndex];
|
|
break;
|
|
}
|
|
|
|
MaterialSet.Add(FMaterialPair(ExteriorMaterial, InteriorMaterial));
|
|
}
|
|
|
|
// create the final material array only containing unique materials
|
|
// alternating exterior and interior materials
|
|
TMap<UMaterialInterface*, int32> ExteriorMaterialPtrToArrayIndex;
|
|
TMap<UMaterialInterface*, int32> InteriorMaterialPtrToArrayIndex;
|
|
for (const FMaterialPair& Curr : MaterialSet)
|
|
{
|
|
// Add base material
|
|
TTuple< UMaterialInterface*, int32> BaseTuple(Curr.Key, FinalMaterials.Add(Curr.Key));
|
|
ExteriorMaterialPtrToArrayIndex.Add(BaseTuple);
|
|
|
|
// Add interior material
|
|
TTuple< UMaterialInterface*, int32> InteriorTuple(Curr.Value, FinalMaterials.Add(Curr.Value));
|
|
InteriorMaterialPtrToArrayIndex.Add(InteriorTuple);
|
|
}
|
|
|
|
// Reassign material ID for each face given the new consolidated array of materials
|
|
for (int32 Material = 0; Material < MaterialIDs.Num(); ++Material)
|
|
{
|
|
if (MaterialIDs[Material] < Materials.Num())
|
|
{
|
|
UMaterialInterface* OldMaterialPtr = Materials[MaterialIDs[Material]];
|
|
if (MaterialIDs[Material] % 2 == 0)
|
|
{
|
|
MaterialIDs[Material] = *ExteriorMaterialPtrToArrayIndex.Find(OldMaterialPtr);
|
|
}
|
|
else
|
|
{
|
|
MaterialIDs[Material] = *InteriorMaterialPtrToArrayIndex.Find(OldMaterialPtr);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// simple deduping process
|
|
for (int32 MaterialIndex = 0; MaterialIndex < Materials.Num(); ++MaterialIndex)
|
|
{
|
|
UMaterialInterface* Material = Materials[MaterialIndex];
|
|
if (Material == BoneSelectedMaterial && !bBoneSelectedMaterialIsUsed) // skip unused bone selected material
|
|
{
|
|
continue;
|
|
}
|
|
FinalMaterials.AddUnique(Material);
|
|
}
|
|
|
|
// Reassign material ID for each face given the new consolidated array of materials
|
|
for (int32 MaterialIDIndex = 0; MaterialIDIndex < MaterialIDs.Num(); MaterialIDIndex++)
|
|
{
|
|
const int32 OldMaterialID = MaterialIDs[MaterialIDIndex];
|
|
if (Materials.IsValidIndex(OldMaterialID))
|
|
{
|
|
UMaterialInterface* Material = Materials[OldMaterialID];
|
|
MaterialIDs[MaterialIDIndex] = FinalMaterials.Find(Material);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Set new material array on the collection
|
|
Materials = FinalMaterials;
|
|
|
|
// BoneSelectedMaterial is no longer stored in the general Materials array
|
|
BoneSelectedMaterialIndex = INDEX_NONE;
|
|
|
|
GeometryCollection->ReindexMaterials();
|
|
InvalidateCollection();
|
|
}
|
|
|
|
int32 UGeometryCollection::AddNewMaterialSlot(bool bCopyLastMaterial)
|
|
{
|
|
Modify();
|
|
int32 NewIdx = Materials.Emplace();
|
|
if (NewIdx > 0 && bCopyLastMaterial)
|
|
{
|
|
Materials[NewIdx] = Materials[NewIdx - 1];
|
|
}
|
|
|
|
InvalidateCollection();
|
|
|
|
return NewIdx;
|
|
}
|
|
|
|
bool UGeometryCollection::RemoveLastMaterialSlot()
|
|
{
|
|
if (Materials.Num() > 1)
|
|
{
|
|
Modify();
|
|
Materials.Pop();
|
|
InvalidateCollection();
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/** Returns true if there is anything to render */
|
|
bool UGeometryCollection::HasVisibleGeometry() const
|
|
{
|
|
if(ensureMsgf(GeometryCollection.IsValid(), TEXT("Geometry Collection %s has an invalid internal collection")))
|
|
{
|
|
return ( (EnableNanite && RenderData && RenderData->bHasNaniteData) || GeometryCollection->HasVisibleGeometry());
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
struct FPackedHierarchyNode_Old
|
|
{
|
|
FSphere LODBounds[64];
|
|
FSphere Bounds[64];
|
|
struct
|
|
{
|
|
uint32 MinLODError_MaxParentLODError;
|
|
uint32 ChildStartReference;
|
|
uint32 ResourcePageIndex_NumPages_GroupPartSize;
|
|
} Misc[64];
|
|
};
|
|
|
|
FArchive& operator<<(FArchive& Ar, FPackedHierarchyNode_Old& Node)
|
|
{
|
|
for (uint32 i = 0; i < 64; i++)
|
|
{
|
|
Ar << Node.LODBounds[i];
|
|
Ar << Node.Bounds[i];
|
|
Ar << Node.Misc[i].MinLODError_MaxParentLODError;
|
|
Ar << Node.Misc[i].ChildStartReference;
|
|
Ar << Node.Misc[i].ResourcePageIndex_NumPages_GroupPartSize;
|
|
}
|
|
|
|
return Ar;
|
|
}
|
|
|
|
|
|
struct FPageStreamingState_Old
|
|
{
|
|
uint32 BulkOffset;
|
|
uint32 BulkSize;
|
|
uint32 PageUncompressedSize;
|
|
uint32 DependenciesStart;
|
|
uint32 DependenciesNum;
|
|
};
|
|
|
|
FArchive& operator<<(FArchive& Ar, FPageStreamingState_Old& PageStreamingState)
|
|
{
|
|
Ar << PageStreamingState.BulkOffset;
|
|
Ar << PageStreamingState.BulkSize;
|
|
Ar << PageStreamingState.PageUncompressedSize;
|
|
Ar << PageStreamingState.DependenciesStart;
|
|
Ar << PageStreamingState.DependenciesNum;
|
|
return Ar;
|
|
}
|
|
|
|
// Parse old Nanite data and throw it away. We need this to not crash when parsing old files.
|
|
static void SerializeOldNaniteData(FArchive& Ar, UGeometryCollection* Owner)
|
|
{
|
|
check(Ar.IsLoading());
|
|
|
|
int32 NumNaniteResources = 0;
|
|
Ar << NumNaniteResources;
|
|
|
|
for (int32 i = 0; i < NumNaniteResources; ++i)
|
|
{
|
|
FStripDataFlags StripFlags(Ar, 0);
|
|
if (!StripFlags.IsDataStrippedForServer())
|
|
{
|
|
bool bLZCompressed;
|
|
TArray< uint8 > RootClusterPage;
|
|
FByteBulkData StreamableClusterPages;
|
|
TArray< uint16 > ImposterAtlas;
|
|
TArray< FPackedHierarchyNode_Old > HierarchyNodes;
|
|
TArray< FPageStreamingState_Old > PageStreamingStates;
|
|
TArray< uint32 > PageDependencies;
|
|
|
|
Ar << bLZCompressed;
|
|
Ar << RootClusterPage;
|
|
StreamableClusterPages.Serialize(Ar, Owner, 0);
|
|
Ar << PageStreamingStates;
|
|
|
|
Ar << HierarchyNodes;
|
|
Ar << PageDependencies;
|
|
Ar << ImposterAtlas;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/** Serialize */
|
|
void UGeometryCollection::Serialize(FArchive& Ar)
|
|
{
|
|
bool bCreateSimulationData = false;
|
|
Ar.UsingCustomVersion(FDestructionObjectVersion::GUID);
|
|
Ar.UsingCustomVersion(FUE5MainStreamObjectVersion::GUID);
|
|
Ar.UsingCustomVersion(FUE5ReleaseStreamObjectVersion::GUID);
|
|
Ar.UsingCustomVersion(FPhysicsObjectVersion::GUID);
|
|
Ar.UsingCustomVersion(FFortniteMainBranchObjectVersion::GUID);
|
|
|
|
Chaos::FChaosArchive ChaosAr(Ar);
|
|
|
|
// The Geometry Collection we will be archiving. This may be replaced with a transient, stripped back Geometry Collection if we are cooking.
|
|
TSharedPtr<FGeometryCollection, ESPMode::ThreadSafe> ArchiveGeometryCollection = GeometryCollection;
|
|
|
|
TObjectPtr<UDataflow> StrippedDataflowAsset = nullptr;
|
|
|
|
bool bIsCookedOrCooking = Ar.IsCooking();
|
|
if (bIsCookedOrCooking && Ar.IsSaving())
|
|
{
|
|
#if WITH_EDITOR
|
|
// if we have a valid selection material, let's make sure we replace it with one that will be cooked
|
|
// this avoid getting warning about the selected material being reference but not cooked
|
|
const int32 SelectedMaterialIndex = GetBoneSelectedMaterialIndex();
|
|
if (!Materials.IsEmpty() && Materials.IsValidIndex(SelectedMaterialIndex))
|
|
{
|
|
Materials[SelectedMaterialIndex] = Materials[0];
|
|
}
|
|
// Likewise remove the direct reference to the BoneSelectedMaterial on cook
|
|
BoneSelectedMaterial = nullptr;
|
|
|
|
if (bStripOnCook)
|
|
{
|
|
// TODO: Since non-nanite path now stores mesh data in cooked build we may be able to unify
|
|
// the simplification of the Geometry Collection for both nanite and non-nanite cases.
|
|
if (EnableNanite && HasNaniteData())
|
|
{
|
|
// If this is a cooked archive, we strip unnecessary data from the Geometry Collection to keep the memory footprint as small as possible.
|
|
ArchiveGeometryCollection = GenerateMinimalGeometryCollection();
|
|
}
|
|
else
|
|
{
|
|
// non-nanite path where it may be necessary to remove geometry if the geometry collection is rendered using ISMPool or an external rendering system
|
|
ArchiveGeometryCollection = CopyCollectionAndRemoveGeometry(GeometryCollection);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// do we need to remove the simplicial attribute ?
|
|
if (false == FGeometryCollection::AreCollisionParticlesEnabled())
|
|
{
|
|
ArchiveGeometryCollection = TSharedPtr<FGeometryCollection, ESPMode::ThreadSafe>(new FGeometryCollection);
|
|
const TArray<FName> NoGroupsToSkip;
|
|
const TArray<TTuple<FName, FName>> AttributesToSkip{ { FGeometryDynamicCollection::SimplicialsAttribute, FTransformCollection::TransformGroup } };
|
|
GeometryCollection->CopyTo(ArchiveGeometryCollection.Get(), NoGroupsToSkip, AttributesToSkip);
|
|
}
|
|
}
|
|
|
|
// The dataflow asset is only needed for the editor, so we just remove it when cooking
|
|
StrippedDataflowAsset = DataflowAsset;
|
|
DataflowAsset = nullptr;
|
|
#endif
|
|
}
|
|
|
|
#if WITH_EDITOR
|
|
//Early versions did not have tagged properties serialize first
|
|
if (Ar.CustomVer(FDestructionObjectVersion::GUID) < FDestructionObjectVersion::GeometryCollectionInDDC)
|
|
{
|
|
if (Ar.IsLoading())
|
|
{
|
|
GeometryCollection->Serialize(ChaosAr);
|
|
}
|
|
else
|
|
{
|
|
ArchiveGeometryCollection->Serialize(ChaosAr);
|
|
}
|
|
}
|
|
|
|
if (Ar.CustomVer(FDestructionObjectVersion::GUID) < FDestructionObjectVersion::AddedTimestampedGeometryComponentCache)
|
|
{
|
|
if (Ar.IsLoading())
|
|
{
|
|
// Strip old recorded cache data
|
|
int32 DummyNumFrames;
|
|
TArray<TArray<FTransform>> DummyTransforms;
|
|
|
|
Ar << DummyNumFrames;
|
|
DummyTransforms.SetNum(DummyNumFrames);
|
|
for (int32 Index = 0; Index < DummyNumFrames; ++Index)
|
|
{
|
|
Ar << DummyTransforms[Index];
|
|
}
|
|
}
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
// Push up the chain to hit tagged properties too
|
|
// This should have always been in here but because we have saved assets
|
|
// from before this line was here it has to be gated
|
|
Super::Serialize(Ar);
|
|
}
|
|
|
|
// Important : this needs to remain after the call to Super::Serialize
|
|
if (StrippedDataflowAsset)
|
|
{
|
|
DataflowAsset = StrippedDataflowAsset;
|
|
}
|
|
|
|
if (!SizeSpecificData.Num())
|
|
{
|
|
ValidateSizeSpecificDataDefaults();
|
|
}
|
|
|
|
if (Ar.CustomVer(FDestructionObjectVersion::GUID) < FDestructionObjectVersion::DensityUnitsChanged)
|
|
{
|
|
if (bMassAsDensity)
|
|
{
|
|
Mass = Chaos::KgCm3ToKgM3(Mass);
|
|
}
|
|
}
|
|
|
|
if (Ar.CustomVer(FDestructionObjectVersion::GUID) >= FDestructionObjectVersion::GeometryCollectionInDDC)
|
|
{
|
|
Ar << bIsCookedOrCooking;
|
|
}
|
|
|
|
//new versions serialize geometry collection after tagged properties
|
|
if (Ar.CustomVer(FDestructionObjectVersion::GUID) >= FDestructionObjectVersion::GeometryCollectionInDDCAndAsset)
|
|
{
|
|
#if WITH_EDITOR
|
|
if (Ar.IsSaving() && !Ar.IsTransacting())
|
|
{
|
|
EnsureDataIsCooked(false /*bInitResources*/, Ar.IsTransacting(), Ar.IsPersistent(), false /*bAllowCopyFromDDC*/);
|
|
}
|
|
#endif
|
|
if (Ar.IsLoading())
|
|
{
|
|
GeometryCollection->Serialize(ChaosAr);
|
|
}
|
|
else
|
|
{
|
|
ArchiveGeometryCollection->Serialize(ChaosAr);
|
|
}
|
|
|
|
// Fix up the type change for implicits here, previously they were unique ptrs, now they're shared
|
|
TManagedArray<TUniquePtr<Chaos::FImplicitObject>>* OldAttr = ArchiveGeometryCollection->FindAttributeTyped<TUniquePtr<Chaos::FImplicitObject>>(FGeometryDynamicCollection::ImplicitsAttribute, FTransformCollection::TransformGroup);
|
|
TManagedArray<TSharedPtr<Chaos::FImplicitObject, ESPMode::ThreadSafe>>* NewAttr = ArchiveGeometryCollection->FindAttributeTyped<TSharedPtr<Chaos::FImplicitObject, ESPMode::ThreadSafe>>(FGeometryDynamicCollection::SharedImplicitsAttribute, FTransformCollection::TransformGroup);
|
|
if (OldAttr)
|
|
{
|
|
if (!NewAttr)
|
|
{
|
|
NewAttr = &ArchiveGeometryCollection->AddAttribute<TSharedPtr<Chaos::FImplicitObject, ESPMode::ThreadSafe>>(FGeometryDynamicCollection::SharedImplicitsAttribute, FTransformCollection::TransformGroup);
|
|
|
|
const int32 NumElems = GeometryCollection->NumElements(FTransformCollection::TransformGroup);
|
|
for (int32 Index = 0; Index < NumElems; ++Index)
|
|
{
|
|
(*NewAttr)[Index] = TSharedPtr<Chaos::FImplicitObject, ESPMode::ThreadSafe>((*OldAttr)[Index].Release());
|
|
}
|
|
}
|
|
|
|
ArchiveGeometryCollection->RemoveAttribute(FGeometryDynamicCollection::ImplicitsAttribute, FTransformCollection::TransformGroup);
|
|
}
|
|
}
|
|
|
|
if (Ar.CustomVer(FDestructionObjectVersion::GUID) < FDestructionObjectVersion::GroupAndAttributeNameRemapping)
|
|
{
|
|
ArchiveGeometryCollection->UpdateOldAttributeNames();
|
|
InvalidateCollection();
|
|
bCreateSimulationData = true;
|
|
}
|
|
|
|
if (Ar.CustomVer(FUE5MainStreamObjectVersion::GUID) == FUE5MainStreamObjectVersion::GeometryCollectionNaniteData ||
|
|
(Ar.CustomVer(FUE5MainStreamObjectVersion::GUID) >= FUE5MainStreamObjectVersion::GeometryCollectionNaniteCooked &&
|
|
Ar.CustomVer(FUE5MainStreamObjectVersion::GUID) < FUE5MainStreamObjectVersion::GeometryCollectionNaniteTransient))
|
|
{
|
|
// This legacy version serialized structure information into archive, but the data is transient.
|
|
// Just load it and throw away here, it will be rebuilt later and resaved past this point.
|
|
SerializeOldNaniteData(ChaosAr, this);
|
|
}
|
|
|
|
if (Ar.CustomVer(FUE5MainStreamObjectVersion::GUID) >= FUE5MainStreamObjectVersion::GeometryCollectionNaniteTransient)
|
|
{
|
|
bool bCooked = Ar.IsCooking();
|
|
Ar << bCooked;
|
|
if (bCooked)
|
|
{
|
|
if (RenderData == nullptr)
|
|
{
|
|
RenderData = MakeUnique<FGeometryCollectionRenderData>();
|
|
}
|
|
|
|
RenderData->Serialize(ChaosAr, *this);
|
|
}
|
|
}
|
|
|
|
|
|
// will generate convex bodies when they dont exist.
|
|
if (Ar.CustomVer(FUE5ReleaseStreamObjectVersion::GUID) < FUE5ReleaseStreamObjectVersion::GeometryCollectionConvexDefaults
|
|
&& Ar.CustomVer(FPhysicsObjectVersion::GUID) < FPhysicsObjectVersion::GeometryCollectionConvexDefaults)
|
|
{
|
|
#if WITH_EDITOR
|
|
if (bGeometryCollectionEnableForcedConvexGenerationInSerialize)
|
|
{
|
|
if (!FGeometryCollectionConvexUtility::HasConvexHullData(GeometryCollection.Get()) &&
|
|
GeometryCollection::SizeSpecific::UsesImplicitCollisionType(SizeSpecificData, EImplicitTypeEnum::Chaos_Implicit_Convex))
|
|
{
|
|
GeometryCollection::SizeSpecific::SetImplicitCollisionType(SizeSpecificData, EImplicitTypeEnum::Chaos_Implicit_Box, EImplicitTypeEnum::Chaos_Implicit_Convex);
|
|
bCreateSimulationData = true;
|
|
InvalidateCollection();
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (Ar.CustomVer(FUE5MainStreamObjectVersion::GUID) < FUE5MainStreamObjectVersion::GeometryCollectionPerChildDamageThreshold)
|
|
{
|
|
// prior this version, damage threshold were computed per cluster and propagated to children
|
|
PerClusterOnlyDamageThreshold = true;
|
|
}
|
|
|
|
if (Ar.CustomVer(FUE5MainStreamObjectVersion::GUID) < FUE5MainStreamObjectVersion::GeometryCollectionDamagePropagationData)
|
|
{
|
|
// prior this version, damage propagation was not enabled by default
|
|
DamagePropagationData.bEnabled = false;
|
|
}
|
|
|
|
if (Ar.IsLoading() && !bIsCookedOrCooking && BoneSelectedMaterialIndex != INDEX_NONE)
|
|
{
|
|
BoneSelectedMaterial = LoadObject<UMaterialInterface>(nullptr, GetSelectedMaterialPath(), nullptr, LOAD_None, nullptr);
|
|
if (Materials.IsValidIndex(BoneSelectedMaterialIndex))
|
|
{
|
|
if (!BoneSelectedMaterial)
|
|
{
|
|
BoneSelectedMaterial = Materials[BoneSelectedMaterialIndex];
|
|
}
|
|
// Remove the material assuming it's the last in the list (otherwise, leave it, as it's not clear why it would be in that state)
|
|
if (BoneSelectedMaterialIndex == Materials.Num() - 1)
|
|
{
|
|
Materials.RemoveAt(BoneSelectedMaterialIndex);
|
|
}
|
|
}
|
|
BoneSelectedMaterialIndex = INDEX_NONE;
|
|
}
|
|
|
|
// Make sure the root index is properly set
|
|
if (RootIndex == INDEX_NONE)
|
|
{
|
|
UpdateRootIndex();
|
|
}
|
|
|
|
if (Ar.IsLoading())
|
|
{
|
|
FillAutoInstanceMeshesInstancesIfNeeded();
|
|
}
|
|
|
|
#if WITH_EDITORONLY_DATA
|
|
if (bCreateSimulationData)
|
|
{
|
|
CreateSimulationData();
|
|
}
|
|
|
|
//for all versions loaded, make sure loaded content is built
|
|
if (Ar.IsLoading())
|
|
{
|
|
// note: don't allow copy from DDC here, since we've already loaded the data above, and the DDC data does not include any data migrations performed by the load
|
|
EnsureDataIsCooked(true /*bInitResources*/, Ar.IsTransacting(), Ar.IsPersistent(), false /*bAllowCopyFromDDC*/);
|
|
}
|
|
#endif
|
|
|
|
if (Ar.IsLoading() && Ar.CustomVer(FFortniteMainBranchObjectVersion::GUID) < FFortniteMainBranchObjectVersion::GeometryCollectionConvertVertexColorToSRGB)
|
|
{
|
|
// disable sRGB conversion for old assets to keep the default behavior from before this setting existed
|
|
// (new assets will default-enable the conversion, because that matches static meshes and is the more-expected behavior)
|
|
bConvertVertexColorsToSRGB = false;
|
|
}
|
|
}
|
|
|
|
const TCHAR* UGeometryCollection::GetSelectedMaterialPath()
|
|
{
|
|
return TEXT("/Engine/EditorMaterials/GeometryCollection/SelectedGeometryMaterial.SelectedGeometryMaterial");
|
|
}
|
|
|
|
void UGeometryCollection::SetEnableNanite(bool bValue)
|
|
{
|
|
if (EnableNanite != bValue)
|
|
{
|
|
EnableNanite = bValue;
|
|
|
|
#if WITH_EDITOR
|
|
RebuildRenderData();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::SetConvertVertexColorsToSRGB(bool bValue)
|
|
{
|
|
if (bConvertVertexColorsToSRGB != bValue)
|
|
{
|
|
bConvertVertexColorsToSRGB = bValue;
|
|
|
|
#if WITH_EDITOR
|
|
RebuildRenderData();
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::FillAutoInstanceMeshesInstancesIfNeeded()
|
|
{
|
|
// make sure the instanced meshes have their instance count properly set
|
|
if (GeometryCollection && AutoInstanceMeshes.Num() > 0 && AutoInstanceMeshes[0].NumInstances == 0)
|
|
{
|
|
// make sure to rest all of it first
|
|
for (FGeometryCollectionAutoInstanceMesh& AutoInstanceMesh : AutoInstanceMeshes)
|
|
{
|
|
AutoInstanceMesh.NumInstances = 0;
|
|
}
|
|
|
|
const GeometryCollection::Facades::FCollectionInstancedMeshFacade InstancedMeshFacade(*GeometryCollection);
|
|
|
|
const int32 NumTransforms = GeometryCollection->Children.Num();
|
|
for (int32 TransformIndex = 0; TransformIndex < NumTransforms; TransformIndex++)
|
|
{
|
|
// only applies to leaves nodes
|
|
if (GeometryCollection->Children[TransformIndex].Num() == 0)
|
|
{
|
|
const int32 AutoInstanceMeshIndex = InstancedMeshFacade.GetIndex(TransformIndex);
|
|
if (AutoInstanceMeshes.IsValidIndex(AutoInstanceMeshIndex))
|
|
{
|
|
AutoInstanceMeshes[AutoInstanceMeshIndex].NumInstances++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#if WITH_EDITOR
|
|
|
|
void UGeometryCollection::CreateSimulationDataImp(bool bCopyFromDDC)
|
|
{
|
|
COOK_STAT(auto Timer = GeometryCollectionCookStats::UsageStats.TimeSyncWork());
|
|
|
|
// Skips the DDC fetch entirely for testing the builder without adding to the DDC
|
|
const static bool bSkipDDC = false;
|
|
|
|
//Use the DDC to build simulation data. If we are loading in the editor we then serialize this data into the geometry collection
|
|
TArray<uint8> DDCData;
|
|
FDerivedDataGeometryCollectionCooker* GeometryCollectionCooker = new FDerivedDataGeometryCollectionCooker(*this);
|
|
|
|
if (GeometryCollectionCooker->CanBuild())
|
|
{
|
|
if (bSkipDDC)
|
|
{
|
|
GeometryCollectionCooker->Build(DDCData);
|
|
COOK_STAT(Timer.AddMiss(DDCData.Num()));
|
|
}
|
|
else
|
|
{
|
|
bool bBuilt = false;
|
|
const bool bSuccess = GetDerivedDataCacheRef().GetSynchronous(GeometryCollectionCooker, DDCData, &bBuilt);
|
|
COOK_STAT(Timer.AddHitOrMiss(!bSuccess || bBuilt ? FCookStats::CallStats::EHitOrMiss::Miss : FCookStats::CallStats::EHitOrMiss::Hit, DDCData.Num()));
|
|
}
|
|
|
|
if (bCopyFromDDC)
|
|
{
|
|
FMemoryReader Ar(DDCData, true); // Must be persistent for BulkData to serialize
|
|
Chaos::FChaosArchive ChaosAr(Ar);
|
|
GeometryCollection->Serialize(ChaosAr);
|
|
}
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::CreateSimulationData()
|
|
{
|
|
CreateSimulationDataImp(/*bCopyFromDDC=*/false);
|
|
SimulationDataGuid = StateGuid;
|
|
}
|
|
|
|
void UGeometryCollection::CreateSimulationDataIfNeeded()
|
|
{
|
|
if (IsSimulationDataDirty() || bGeometryCollectionAlwaysRecreateSimulationData)
|
|
{
|
|
CreateSimulationData();
|
|
}
|
|
}
|
|
|
|
|
|
void UGeometryCollection::CreateRenderDataImp(bool bCopyFromDDC)
|
|
{
|
|
COOK_STAT(auto Timer = GeometryCollectionCookStats::UsageStats.TimeSyncWork());
|
|
|
|
// Skips the DDC fetch entirely for testing the builder without adding to the DDC
|
|
const static bool bSkipDDC = false;
|
|
|
|
//Use the DDC to build simulation data. If we are loading in the editor we then serialize this data into the geometry collection
|
|
TArray<uint8> DDCData;
|
|
FDerivedDataGeometryCollectionRenderDataCooker* GeometryCollectionCooker = new FDerivedDataGeometryCollectionRenderDataCooker(*this);
|
|
|
|
if (GeometryCollectionCooker->CanBuild())
|
|
{
|
|
if (bSkipDDC)
|
|
{
|
|
GeometryCollectionCooker->Build(DDCData);
|
|
COOK_STAT(Timer.AddMiss(DDCData.Num()));
|
|
}
|
|
else
|
|
{
|
|
bool bBuilt = false;
|
|
const bool bSuccess = GetDerivedDataCacheRef().GetSynchronous(GeometryCollectionCooker, DDCData, &bBuilt);
|
|
COOK_STAT(Timer.AddHitOrMiss(!bSuccess || bBuilt ? FCookStats::CallStats::EHitOrMiss::Miss : FCookStats::CallStats::EHitOrMiss::Hit, DDCData.Num()));
|
|
}
|
|
|
|
if (bCopyFromDDC)
|
|
{
|
|
FMemoryReader Ar(DDCData, true); // Must be persistent for BulkData to serialize
|
|
Chaos::FChaosArchive ChaosAr(Ar);
|
|
|
|
RenderData = MakeUnique<FGeometryCollectionRenderData>();
|
|
RenderData->Serialize(ChaosAr, *this);
|
|
}
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::RebuildRenderData()
|
|
{
|
|
if (RenderDataGuid != StateGuid)
|
|
{
|
|
ReleaseResources();
|
|
RenderData = FGeometryCollectionRenderData::Create(*GetGeometryCollection(), EnableNanite, bUseFullPrecisionUVs, bConvertVertexColorsToSRGB);
|
|
InitResources();
|
|
PropagateMarkDirtyToComponents();
|
|
RenderDataGuid = StateGuid;
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::PropagateMarkDirtyToComponents() const
|
|
{
|
|
for (TObjectIterator<UGeometryCollectionComponent> It(RF_ClassDefaultObject, false, EInternalObjectFlags::Garbage); It; ++It)
|
|
{
|
|
if (It->RestCollection == this)
|
|
{
|
|
It->MarkRenderStateDirty();
|
|
It->MarkRenderDynamicDataDirty();
|
|
}
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::PropagateTransformUpdateToComponents() const
|
|
{
|
|
for (TObjectIterator<UGeometryCollectionComponent> It(RF_ClassDefaultObject, false, EInternalObjectFlags::Garbage); It; ++It)
|
|
{
|
|
if (It->RestCollection == this)
|
|
{
|
|
// make sure to reset the rest collection to make sure the internal state of the components is up to date
|
|
// but we do not apply asset default to avoid overriding the existing overrides
|
|
It->SetRestCollection(this, false /* bApplyAssetDefaults */);
|
|
}
|
|
}
|
|
}
|
|
|
|
TSharedPtr<FGeometryCollection, ESPMode::ThreadSafe> UGeometryCollection::GenerateMinimalGeometryCollection() const
|
|
{
|
|
TMap<FName, TSet<FName>> SkipList;
|
|
static TSet<FName> GeometryGroups{ FGeometryCollection::GeometryGroup, FGeometryCollection::VerticesGroup, FGeometryCollection::FacesGroup };
|
|
if (bStripOnCook)
|
|
{
|
|
// Remove all geometry
|
|
//static TSet<FName> GeometryGroups{ FGeometryCollection::GeometryGroup, FGeometryCollection::VerticesGroup, FGeometryCollection::FacesGroup, FGeometryCollection::MaterialGroup };
|
|
for (const FName& GeometryGroup : GeometryGroups)
|
|
{
|
|
TSet<FName>& SkipAttributes = SkipList.Add(GeometryGroup);
|
|
SkipAttributes.Append(GeometryCollection->AttributeNames(GeometryGroup));
|
|
}
|
|
}
|
|
|
|
TSharedPtr<FGeometryCollection, ESPMode::ThreadSafe> DuplicateGeometryCollection(new FGeometryCollection());
|
|
DuplicateGeometryCollection->AddAttribute<bool>(FGeometryCollection::SimulatableParticlesAttribute, FTransformCollection::TransformGroup);
|
|
DuplicateGeometryCollection->AddAttribute<FVector3f>("InertiaTensor", FGeometryCollection::TransformGroup);
|
|
DuplicateGeometryCollection->AddAttribute<float>("Mass", FGeometryCollection::TransformGroup);
|
|
DuplicateGeometryCollection->AddAttribute<FTransform>("MassToLocal", FGeometryCollection::TransformGroup);
|
|
DuplicateGeometryCollection->AddAttribute<FGeometryDynamicCollection::FSharedImplicit>(
|
|
FGeometryDynamicCollection::ImplicitsAttribute, FTransformCollection::TransformGroup);
|
|
DuplicateGeometryCollection->CopyMatchingAttributesFrom(*GeometryCollection, &SkipList);
|
|
// If we've removed all geometry, we need to make sure any references to that geometry are removed.
|
|
// We also need to resize geometry groups to ensure that they are empty.
|
|
if (bStripOnCook)
|
|
{
|
|
const TManagedArray<int32>& TransformToGeometryIndex = DuplicateGeometryCollection->GetAttribute<int32>("TransformToGeometryIndex", FTransformCollection::TransformGroup);
|
|
|
|
//
|
|
// Copy the bounds to the TransformGroup.
|
|
// @todo(nanite.bounds) : Rely on Nanite bounds in the component instead and dont copy here
|
|
//
|
|
if (!DuplicateGeometryCollection->HasAttribute("BoundingBox", "Transform"))
|
|
{
|
|
DuplicateGeometryCollection->AddAttribute<FBox>("BoundingBox", "Transform");
|
|
}
|
|
|
|
if (!DuplicateGeometryCollection->HasAttribute("NaniteIndex", "Transform"))
|
|
{
|
|
DuplicateGeometryCollection->AddAttribute<FBox>("NaniteIndex", "Transform");
|
|
}
|
|
|
|
const int32 NumTransforms = GeometryCollection->NumElements(FGeometryCollection::TransformGroup);
|
|
TManagedArray<int32>& NaniteIndex = DuplicateGeometryCollection->ModifyAttribute<int32>("NaniteIndex", "Transform");
|
|
TManagedArray<FBox>& TransformBounds = DuplicateGeometryCollection->ModifyAttribute<FBox>("BoundingBox", "Transform");
|
|
const TManagedArray<FBox>& GeometryBounds = GeometryCollection->GetAttribute<FBox>("BoundingBox", "Geometry");
|
|
|
|
NaniteIndex.Fill(INDEX_NONE);
|
|
for (int TransformIndex = 0; TransformIndex < NumTransforms; TransformIndex++)
|
|
{
|
|
NaniteIndex[TransformIndex] = TransformToGeometryIndex[TransformIndex];
|
|
const int32 GeometryIndex = TransformToGeometryIndex[TransformIndex];
|
|
if (GeometryIndex != INDEX_NONE)
|
|
{
|
|
TransformBounds[TransformIndex] = GeometryBounds[GeometryIndex];
|
|
}
|
|
else
|
|
{
|
|
TransformBounds[TransformIndex].Init();
|
|
}
|
|
}
|
|
|
|
//
|
|
// Clear the geometry and the transforms connection to it.
|
|
//
|
|
//TransformToGeometryIndex.Fill(INDEX_NONE);
|
|
for (const FName& GeometryGroup : GeometryGroups)
|
|
{
|
|
DuplicateGeometryCollection->EmptyGroup(GeometryGroup);
|
|
}
|
|
}
|
|
return DuplicateGeometryCollection;
|
|
}
|
|
|
|
TSharedPtr<FGeometryCollection, ESPMode::ThreadSafe> UGeometryCollection::CopyCollectionAndRemoveGeometry(const TSharedPtr<const FGeometryCollection, ESPMode::ThreadSafe>& CollectionToCopy)
|
|
{
|
|
TSharedPtr<FGeometryCollection, ESPMode::ThreadSafe> GeometryCollectionToReturn(new FGeometryCollection());
|
|
|
|
const TArray<FName> GroupsToSkip{ FGeometryCollection::GeometryGroup, FGeometryCollection::VerticesGroup, FGeometryCollection::FacesGroup };
|
|
const TArray<TTuple<FName, FName>> AttributesToSkip{ { FGeometryDynamicCollection::SimplicialsAttribute, FTransformCollection::TransformGroup } };
|
|
|
|
CollectionToCopy->CopyTo(GeometryCollectionToReturn.Get(), GroupsToSkip, AttributesToSkip);
|
|
|
|
if (FGeometryCollection::AreCollisionParticlesEnabled())
|
|
{
|
|
// recreate the simplicial attribute since we cannot copy it and we skipped it
|
|
using FSimplicialUniquePtr = TUniquePtr<FCollisionStructureManager::FSimplicial>;
|
|
if (const TManagedArray<FSimplicialUniquePtr>* SourceSimplicials = CollectionToCopy->FindAttribute<FSimplicialUniquePtr>(FGeometryDynamicCollection::SimplicialsAttribute, FTransformCollection::TransformGroup))
|
|
{
|
|
TManagedArray<FSimplicialUniquePtr>& SimplicialsToWrite = GeometryCollectionToReturn->AddAttribute<FSimplicialUniquePtr>(FGeometryDynamicCollection::SimplicialsAttribute, FTransformCollection::TransformGroup);
|
|
for (int32 Index = SourceSimplicials->Num() - 1; 0 <= Index; Index--)
|
|
{
|
|
SimplicialsToWrite[Index].Reset((*SourceSimplicials)[Index] ? (*SourceSimplicials)[Index]->NewCopy() : nullptr);
|
|
}
|
|
}
|
|
}
|
|
|
|
// since we are removing the bounding box attribute from the geometry group we need to move it to the transform group
|
|
const TManagedArray<FBox>& GeometryBounds = CollectionToCopy->GetAttribute<FBox>("BoundingBox", "Geometry");
|
|
const TManagedArray<int32>& TransformToGeometryIndexArray = CollectionToCopy->TransformToGeometryIndex;
|
|
|
|
TManagedArray<FBox>& TransformBounds = GeometryCollectionToReturn->AddAttribute<FBox>("BoundingBox", "Transform");
|
|
|
|
for (int TransformIndex = 0; TransformIndex < TransformBounds.Num(); TransformIndex++)
|
|
{
|
|
const int32 GeometryIndex = TransformToGeometryIndexArray[TransformIndex];
|
|
if (GeometryIndex != INDEX_NONE)
|
|
{
|
|
TransformBounds[TransformIndex] = GeometryBounds[GeometryIndex];
|
|
}
|
|
else
|
|
{
|
|
TransformBounds[TransformIndex].Init();
|
|
}
|
|
}
|
|
|
|
return GeometryCollectionToReturn;
|
|
}
|
|
|
|
#endif
|
|
|
|
FGeometryCollectionRenderResourceSizeInfo UGeometryCollection::GetRenderResourceSizeInfo() const
|
|
{
|
|
FGeometryCollectionRenderResourceSizeInfo InfoOut;
|
|
const FGeometryCollectionMeshResources& MeshResources = RenderData->MeshResource;
|
|
InfoOut.MeshResourcesSize += MeshResources.IndexBuffer.GetIndexDataSize();
|
|
InfoOut.MeshResourcesSize += MeshResources.PositionVertexBuffer.GetAllocatedSize();
|
|
InfoOut.MeshResourcesSize += MeshResources.StaticMeshVertexBuffer.GetResourceSize();
|
|
InfoOut.MeshResourcesSize += MeshResources.ColorVertexBuffer.GetAllocatedSize();
|
|
InfoOut.MeshResourcesSize += MeshResources.BoneMapVertexBuffer.GetAllocatedSize();
|
|
|
|
InfoOut.NaniteResourcesSize += GetNaniteResourcesSize(*RenderData->NaniteResourcesPtr);
|
|
|
|
return InfoOut;
|
|
}
|
|
|
|
void UGeometryCollection::InitResources()
|
|
{
|
|
if (RenderData)
|
|
{
|
|
RenderData->InitResources(*this);
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::ReleaseResources()
|
|
{
|
|
if (RenderData)
|
|
{
|
|
RenderData->ReleaseResources();
|
|
}
|
|
}
|
|
|
|
void UGeometryCollection::InvalidateCollection()
|
|
{
|
|
StateGuid = FGuid::NewGuid();
|
|
UpdateRootIndex();
|
|
}
|
|
|
|
#if WITH_EDITOR
|
|
bool UGeometryCollection::IsSimulationDataDirty() const
|
|
{
|
|
return StateGuid != SimulationDataGuid;
|
|
}
|
|
#endif
|
|
|
|
int32 UGeometryCollection::AttachEmbeddedGeometryExemplar(const UStaticMesh* Exemplar)
|
|
{
|
|
FSoftObjectPath NewExemplarPath(Exemplar);
|
|
|
|
// Check first if the exemplar is already attached
|
|
for (int32 ExemplarIndex = 0; ExemplarIndex < EmbeddedGeometryExemplar.Num(); ++ExemplarIndex)
|
|
{
|
|
if (NewExemplarPath == EmbeddedGeometryExemplar[ExemplarIndex].StaticMeshExemplar)
|
|
{
|
|
return ExemplarIndex;
|
|
}
|
|
}
|
|
|
|
return EmbeddedGeometryExemplar.Emplace( NewExemplarPath );
|
|
}
|
|
|
|
void UGeometryCollection::RemoveExemplars(const TArray<int32>& SortedRemovalIndices)
|
|
{
|
|
if (SortedRemovalIndices.Num() > 0)
|
|
{
|
|
for (int32 Index = SortedRemovalIndices.Num() - 1; Index >= 0; --Index)
|
|
{
|
|
EmbeddedGeometryExemplar.RemoveAt(Index);
|
|
}
|
|
}
|
|
}
|
|
|
|
int32 FGeometryCollectionAutoInstanceMesh::GetNumDataPerInstance() const
|
|
{
|
|
return NumInstances? (CustomData.Num() / NumInstances): 0;
|
|
}
|
|
|
|
bool FGeometryCollectionAutoInstanceMesh::operator ==(const FGeometryCollectionAutoInstanceMesh& Other) const
|
|
{
|
|
return (Mesh == Other.Mesh) && (Materials == Other.Materials);
|
|
}
|
|
|
|
/** find or add a auto instance mesh and return its index */
|
|
const FGeometryCollectionAutoInstanceMesh& UGeometryCollection::GetAutoInstanceMesh(int32 AutoInstanceMeshIndex) const
|
|
{
|
|
return AutoInstanceMeshes[AutoInstanceMeshIndex];
|
|
}
|
|
|
|
/** find or add a auto instance mesh from another one and return its index */
|
|
int32 UGeometryCollection::FindOrAddAutoInstanceMesh(const FGeometryCollectionAutoInstanceMesh& AutoInstanceMesh)
|
|
{
|
|
int32 AutoInstanceMeshIndex = AutoInstanceMeshes.AddUnique(AutoInstanceMesh);
|
|
FGeometryCollectionAutoInstanceMesh& Instance = AutoInstanceMeshes[AutoInstanceMeshIndex];
|
|
Instance.NumInstances++;
|
|
return AutoInstanceMeshIndex;
|
|
}
|
|
|
|
int32 UGeometryCollection::FindOrAddAutoInstanceMesh(const UStaticMesh* StaticMesh, const TArray<UMaterialInterface*>& MeshMaterials)
|
|
{
|
|
FGeometryCollectionAutoInstanceMesh NewMesh;
|
|
NewMesh.Mesh = StaticMesh;
|
|
NewMesh.Materials = MeshMaterials;
|
|
|
|
return FindOrAddAutoInstanceMesh(NewMesh);
|
|
}
|
|
|
|
FGuid UGeometryCollection::GetIdGuid() const
|
|
{
|
|
return PersistentGuid;
|
|
}
|
|
|
|
FGuid UGeometryCollection::GetStateGuid() const
|
|
{
|
|
return StateGuid;
|
|
}
|
|
|
|
#if WITH_EDITOR
|
|
|
|
void UGeometryCollection::PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent)
|
|
{
|
|
bool bDoInvalidateCollection = false;
|
|
bool bValidateSizeSpecificDataDefaults = false;
|
|
bool bDoUpdateConvexGeometry = false;
|
|
bool bRebuildSimulationData = false;
|
|
bool bRebuildRenderData = false;
|
|
|
|
if (PropertyChangedEvent.Property)
|
|
{
|
|
FName PropertyName = PropertyChangedEvent.Property->GetFName();
|
|
|
|
if (PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UGeometryCollection, EnableNanite))
|
|
{
|
|
bDoInvalidateCollection = true;
|
|
bRebuildRenderData = true;
|
|
}
|
|
else if (PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UGeometryCollection, bUseFullPrecisionUVs))
|
|
{
|
|
bDoInvalidateCollection = true;
|
|
bRebuildRenderData = true;
|
|
}
|
|
else if (PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UGeometryCollection, bConvertVertexColorsToSRGB))
|
|
{
|
|
bRebuildRenderData = true;
|
|
}
|
|
else if (PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UGeometryCollection, SizeSpecificData))
|
|
{
|
|
bDoInvalidateCollection = true;
|
|
bDoUpdateConvexGeometry = true;
|
|
bValidateSizeSpecificDataDefaults = true;
|
|
bRebuildSimulationData = true;
|
|
}
|
|
else if (PropertyName.ToString().Contains(FString("ImplicitType")))
|
|
//SizeSpecificData.Num() && SizeSpecificData[0].CollisionShapes.Num() &&
|
|
// PropertyChangedEvent.Property->GetFName() == GET_MEMBER_NAME_CHECKED(UGeometryCollection, SizeSpecificData[0].CollisionShapes[0].ImplicitType))
|
|
{
|
|
bDoInvalidateCollection = true;
|
|
bDoUpdateConvexGeometry = true;
|
|
bRebuildSimulationData = true;
|
|
}
|
|
else if (PropertyChangedEvent.Property->GetFName() != GET_MEMBER_NAME_CHECKED(UGeometryCollection, Materials))
|
|
{
|
|
bDoInvalidateCollection = true;
|
|
bRebuildSimulationData = true;
|
|
}
|
|
}
|
|
else if (PropertyChangedEvent.ChangeType == EPropertyChangeType::Unspecified)
|
|
{
|
|
// We get here on undo/redo operations.
|
|
// Make sure that render data rebuilds.
|
|
bRebuildRenderData = true;
|
|
}
|
|
|
|
if (bDoInvalidateCollection)
|
|
{
|
|
InvalidateCollection();
|
|
}
|
|
|
|
if (bValidateSizeSpecificDataDefaults)
|
|
{
|
|
ValidateSizeSpecificDataDefaults();
|
|
}
|
|
|
|
if (bDoUpdateConvexGeometry)
|
|
{
|
|
UpdateConvexGeometry();
|
|
}
|
|
|
|
if (bRebuildSimulationData)
|
|
{
|
|
if (!bManualDataCreate)
|
|
{
|
|
CreateSimulationData();
|
|
}
|
|
}
|
|
|
|
if (bRebuildRenderData)
|
|
{
|
|
RebuildRenderData();
|
|
}
|
|
}
|
|
|
|
bool UGeometryCollection::Modify(bool bAlwaysMarkDirty /*= true*/)
|
|
{
|
|
bool bSuperResult = Super::Modify(bAlwaysMarkDirty);
|
|
|
|
UPackage* Package = GetOutermost();
|
|
if (Package->IsDirty())
|
|
{
|
|
InvalidateCollection();
|
|
}
|
|
|
|
return bSuperResult;
|
|
}
|
|
|
|
void UGeometryCollection::EnsureDataIsCooked(bool bInitResources, bool bIsTransacting, bool bIsPersistant, bool bAllowCopyFromDDC)
|
|
{
|
|
if (StateGuid != LastBuiltSimulationDataGuid)
|
|
{
|
|
CreateSimulationDataImp(/*bCopyFromDDC=*/ bAllowCopyFromDDC && !bIsTransacting);
|
|
LastBuiltSimulationDataGuid = StateGuid;
|
|
}
|
|
|
|
// Render data only goes through DDC when loading and saving (bIsPersistant).
|
|
// Using DDC during edits isn't worth it especially as we use a continually mutating guid instead of a state hash.
|
|
// That ensures that all edits are cache misses (slow) and unnecessarily fill up DDC disk space.
|
|
// TODO: SimulationData currently relies on these calls to update reliably, so we still need to use DDC for edits.
|
|
// We could make CreateSimulationData() be reliably called for all edits and then only use DDC for loading and saving.
|
|
// If we do that we can combine CreateSimulationDataImp() with CreateRenderDataImp() and FDerivedDataGeometryCollectionCooker
|
|
// with FDerivedDataGeometryCollectionRenderDataCooker.
|
|
if (bIsPersistant && StateGuid != LastBuiltRenderDataGuid)
|
|
{
|
|
CreateRenderDataImp(/*bCopyFromDDC=*/ bInitResources);
|
|
|
|
if (FApp::CanEverRender() && bInitResources)
|
|
{
|
|
if (RenderData)
|
|
{
|
|
RenderData->InitResources(*this);
|
|
}
|
|
}
|
|
|
|
LastBuiltRenderDataGuid = StateGuid;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
void UGeometryCollection::PostLoad()
|
|
{
|
|
Super::PostLoad();
|
|
|
|
// Initialize rendering resources.
|
|
if (FApp::CanEverRender())
|
|
{
|
|
InitResources();
|
|
}
|
|
|
|
#if WITH_EDITORONLY_DATA
|
|
if (!RootProxy_DEPRECATED.IsNull())
|
|
{
|
|
if (UStaticMesh* ProxyMesh = Cast<UStaticMesh>(RootProxy_DEPRECATED.TryLoad()))
|
|
{
|
|
RootProxyData.ProxyMeshes.Add(TObjectPtr<UStaticMesh>(ProxyMesh));
|
|
}
|
|
RootProxy_DEPRECATED = nullptr;
|
|
}
|
|
|
|
for (int32 MeshIndex = 0; MeshIndex < AutoInstanceMeshes.Num(); MeshIndex++)
|
|
{
|
|
FGeometryCollectionAutoInstanceMesh& AutoInstanceMesh = AutoInstanceMeshes[MeshIndex];
|
|
if (!AutoInstanceMesh.StaticMesh_DEPRECATED.IsNull())
|
|
{
|
|
if (UStaticMesh* StaticMesh = Cast<UStaticMesh>(AutoInstanceMesh.StaticMesh_DEPRECATED.TryLoad()))
|
|
{
|
|
AutoInstanceMesh.Mesh = TObjectPtr<UStaticMesh>(StaticMesh);
|
|
}
|
|
AutoInstanceMesh.StaticMesh_DEPRECATED = nullptr;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void UGeometryCollection::BeginDestroy()
|
|
{
|
|
Super::BeginDestroy();
|
|
ReleaseResources();
|
|
}
|
|
|
|
bool UGeometryCollection::HasMeshData() const
|
|
{
|
|
return RenderData != nullptr && RenderData->bHasMeshData;
|
|
}
|
|
|
|
bool UGeometryCollection::HasNaniteData() const
|
|
{
|
|
return RenderData != nullptr && RenderData->bHasNaniteData;
|
|
}
|
|
|
|
uint32 UGeometryCollection::GetNaniteResourceID() const
|
|
{
|
|
return RenderData->NaniteResourcesPtr->RuntimeResourceID;
|
|
}
|
|
|
|
uint32 UGeometryCollection::GetNaniteHierarchyOffset() const
|
|
{
|
|
return RenderData->NaniteResourcesPtr->HierarchyOffset;
|
|
}
|
|
|
|
uint32 UGeometryCollection::GetNaniteHierarchyOffset(int32 GeometryIndex, bool bFlattened) const
|
|
{
|
|
const Nanite::FResources& NaniteResources = *RenderData->NaniteResourcesPtr;
|
|
check(GeometryIndex >= 0 && GeometryIndex < NaniteResources.HierarchyRootOffsets.Num());
|
|
uint32 HierarchyOffset = NaniteResources.HierarchyRootOffsets[GeometryIndex];
|
|
if (bFlattened)
|
|
{
|
|
HierarchyOffset += NaniteResources.HierarchyOffset;
|
|
}
|
|
return HierarchyOffset;
|
|
}
|
|
|
|
void UGeometryCollection::AddAssetUserData(UAssetUserData* InUserData)
|
|
{
|
|
if (InUserData != nullptr)
|
|
{
|
|
UAssetUserData* ExistingData = GetAssetUserDataOfClass(InUserData->GetClass());
|
|
if (ExistingData != nullptr)
|
|
{
|
|
AssetUserData.Remove(ExistingData);
|
|
}
|
|
AssetUserData.Add(InUserData);
|
|
}
|
|
}
|
|
|
|
UAssetUserData* UGeometryCollection::GetAssetUserDataOfClass(TSubclassOf<UAssetUserData> InUserDataClass)
|
|
{
|
|
for (int32 DataIdx = 0; DataIdx < AssetUserData.Num(); DataIdx++)
|
|
{
|
|
UAssetUserData* Datum = AssetUserData[DataIdx];
|
|
if (Datum != nullptr && Datum->IsA(InUserDataClass))
|
|
{
|
|
return Datum;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void UGeometryCollection::RemoveUserDataOfClass(TSubclassOf<UAssetUserData> InUserDataClass)
|
|
{
|
|
for (int32 DataIdx = 0; DataIdx < AssetUserData.Num(); DataIdx++)
|
|
{
|
|
UAssetUserData* Datum = AssetUserData[DataIdx];
|
|
if (Datum != nullptr && Datum->IsA(InUserDataClass))
|
|
{
|
|
AssetUserData.RemoveAt(DataIdx);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
const TArray<UAssetUserData*>* UGeometryCollection::GetAssetUserDataArray() const
|
|
{
|
|
return &ToRawPtrTArrayUnsafe(AssetUserData);
|
|
} |