///////// FApexPhysX3Interface //////////////////////////////////
void FApexPhysX3Interface::setContactReportFlags(physx::PxShape* PShape, physx::PxPairFlags PFlags, apex::DestructibleActor* actor, PxU16 actorChunkIndex)
{
UDestructibleComponent* DestructibleComponent = Cast<UDestructibleComponent>(FPhysxUserData::Get<UPrimitiveComponent>(PShape->userData));
check(DestructibleComponent);
DestructibleComponent->Pair(actorChunkIndex, PShape);
}
void UDestructibleComponent::UpdateDestructibleChunkTM(const TArray<const PxRigidActor*>& ActiveActors)
{
//We want to consolidate the transforms so that we update each destructible component once by passing it an array of chunks to update.
//This helps avoid a lot of duplicated work like marking render dirty, computing inverse world component, etc...
TMap<UDestructibleComponent*, TArray<FUpdateChunksInfo> > ComponentUpdateMapping;
//prepare map to update destructible components
TArray<PxShape*> Shapes;
for (const PxRigidActor* RigidActor : ActiveActors)
{
if (const FDestructibleChunkInfo* DestructibleChunkInfo = FPhysxUserData::Get<FDestructibleChunkInfo>(RigidActor->userData))
{
if (GApexModuleDestructible->owns(RigidActor) && DestructibleChunkInfo->OwningComponent.IsValid())
{
Shapes.AddUninitialized(RigidActor->getNbShapes());
int32 NumShapes = RigidActor->getShapes(Shapes.GetData(), Shapes.Num());
for (int32 ShapeIdx = 0; ShapeIdx < Shapes.Num(); ++ShapeIdx)
{
PxShape* Shape = Shapes[ShapeIdx];
int32 ChunkIndex;
if (NxDestructibleActor* DestructibleActor = GApexModuleDestructible->getDestructibleAndChunk(Shape, &ChunkIndex))
{
const physx::PxMat44 ChunkPoseRT = DestructibleActor->getChunkPose(ChunkIndex);
const physx::PxTransform Transform(ChunkPoseRT);
if (UDestructibleComponent* DestructibleComponent = Cast<UDestructibleComponent>(FPhysxUserData::Get<UPrimitiveComponent>(DestructibleActor->userData)))
{
if (DestructibleComponent->IsRegistered())
{
TArray<FUpdateChunksInfo>& UpdateInfos = ComponentUpdateMapping.FindOrAdd(DestructibleComponent);
FUpdateChunksInfo* UpdateInfo = new (UpdateInfos)FUpdateChunksInfo(ChunkIndex, P2UTransform(Transform));
}
}
}
}
Shapes.Empty(Shapes.Num()); //we want to keep largest capacity array to avoid reallocs
}
}
}
//update each component
for (auto It = ComponentUpdateMapping.CreateIterator(); It; ++It)
{
UDestructibleComponent* DestructibleComponent = It.Key();
TArray<FUpdateChunksInfo>& UpdateInfos = It.Value();
if (DestructibleComponent->IsFracturedOrInitiallyStatic())
{
DestructibleComponent->SetChunksWorldTM(UpdateInfos);
}
else
{
//if we haven't fractured it must mean that we're simulating a destructible and so we should update our ComponentToWorld based on the single rigid body
DestructibleComponent->SyncComponentToRBPhysics();
}
}
}
void FApexChunkReport::onStateChangeNotify(const apex::ChunkStateEventData& visibilityEvent)
{
UDestructibleComponent* DestructibleComponent = Cast<UDestructibleComponent>(FPhysxUserData::Get<UPrimitiveComponent>(visibilityEvent.destructible->userData));
check(DestructibleComponent);
if (DestructibleComponent->IsPendingKill()) //don't notify if object is being destroyed
{
return;
}
DestructibleComponent->OnVisibilityEvent(visibilityEvent);
}
void FApexChunkReport::onDamageNotify(const apex::DamageEventReportData& damageEvent)
{
UDestructibleComponent* DestructibleComponent = Cast<UDestructibleComponent>(FPhysxUserData::Get<UPrimitiveComponent>(damageEvent.destructible->userData));
check(DestructibleComponent);
if (DestructibleComponent->IsPendingKill()) //don't notify if object is being destroyed
{
return;
}
DestructibleComponent->GetWorld()->GetPhysicsScene()->AddPendingDamageEvent(DestructibleComponent, damageEvent);
}
void FPhysScene::DispatchPhysNotifications()
{
SCOPE_CYCLE_COUNTER(STAT_PhysicsEventTime);
//Collision notification
{
// Let the game-specific PhysicsCollisionHandler process any physics collisions that took place
if (OwningWorld != NULL && OwningWorld->PhysicsCollisionHandler != NULL)
{
OwningWorld->PhysicsCollisionHandler->HandlePhysicsCollisions(PendingCollisionNotifies);
}
// Fire any collision notifies in the queue.
for (int32 i = 0; i<PendingCollisionNotifies.Num(); i++)
{
FCollisionNotifyInfo& NotifyInfo = PendingCollisionNotifies[i];
if (NotifyInfo.RigidCollisionData.ContactInfos.Num() > 0)
{
if (NotifyInfo.bCallEvent0 && NotifyInfo.IsValidForNotify() && NotifyInfo.Info0.Actor.IsValid())
{
NotifyInfo.Info0.Actor->DispatchPhysicsCollisionHit(NotifyInfo.Info0, NotifyInfo.Info1, NotifyInfo.RigidCollisionData);
}
// Need to check IsValidForNotify again in case first call broke something.
if (NotifyInfo.bCallEvent1 && NotifyInfo.IsValidForNotify() && NotifyInfo.Info1.Actor.IsValid())
{
NotifyInfo.RigidCollisionData.SwapContactOrders();
NotifyInfo.Info1.Actor->DispatchPhysicsCollisionHit(NotifyInfo.Info1, NotifyInfo.Info0, NotifyInfo.RigidCollisionData);
}
}
}
PendingCollisionNotifies.Empty();
}
#if WITH_SUBSTEPPING
#if WITH_APEX
//TODO: Queue is always empty for now - waiting for support from NVIDIA
//Destructible notification
{
for (int32 i = 0; i < DestructibleDamageEventQueue.Num(); ++i)
{
const NxApexDamageEventReportData & damageEvent = DestructibleDamageEventQueue[i];
UDestructibleComponent* DestructibleComponent = Cast<UDestructibleComponent>(FPhysxUserData::Get<UPrimitiveComponent>(damageEvent.destructible->userData));
DestructibleComponent->OnDamageEvent(damageEvent);
}
DestructibleDamageEventQueue.Empty();
}
#endif
#endif
}
void FDestructibleMeshEditorViewportClient::Draw( const FSceneView* View,FPrimitiveDrawInterface* PDI )
{
FEditorViewportClient::Draw(View, PDI);
#if WITH_APEX
const bool DrawChunkMarker = true;
UDestructibleComponent* Comp = PreviewDestructibleComp.Get();
if (Comp)
{
if (Comp->DestructibleMesh != NULL && Comp->DestructibleMesh->FractureSettings != NULL)
{
if (Comp->DestructibleMesh->ApexDestructibleAsset != NULL)
{
NxDestructibleAsset* Asset = Comp->DestructibleMesh->ApexDestructibleAsset;
const NxRenderMeshAsset* RenderMesh = Asset->getRenderMeshAsset();
for (uint32 i=0; i < Asset->getChunkCount(); ++i)
{
int32 PartIdx = Asset->getPartIndex(i);
int32 BoneIdx = i+1;
if ( SelectedChunkIndices.Contains(i) )
{
PxBounds3 PBounds = RenderMesh->getBounds(PartIdx);
FVector Center = P2UVector(PBounds.getCenter()) + Comp->GetBoneLocation(Comp->GetBoneName(BoneIdx));
FVector Extent = P2UVector(PBounds.getExtents());
FBox Bounds(Center - Extent, Center + Extent);
DrawWireBox(PDI, Bounds, FColor::Blue, SDPG_World);
}
}
}
}
}
#endif // WITH_APEX
}
/** Set info in the HitResult (Actor, Component, PhysMaterial, BoneName, Item) based on the supplied shape and face index */
static void SetHitResultFromShapeAndFaceIndex(const PxShape* PShape, const PxRigidActor* PActor, const uint32 FaceIndex, FHitResult& OutResult, bool bReturnPhysMat)
{
const FBodyInstance* BodyInst = FPhysxUserData::Get<FBodyInstance>(PActor->userData);
FDestructibleChunkInfo* ChunkInfo = FPhysxUserData::Get<FDestructibleChunkInfo>(PShape->userData);
UPrimitiveComponent* PrimComp = FPhysxUserData::Get<UPrimitiveComponent>(PShape->userData);
if(BodyInst)
{
BodyInst = BodyInst->GetOriginalBodyInstance(PShape);
}
if (ChunkInfo == NULL)
{
ChunkInfo = FPhysxUserData::Get<FDestructibleChunkInfo>(PActor->userData);
}
UPrimitiveComponent* OwningComponent = ChunkInfo != NULL ? ChunkInfo->OwningComponent.Get() : NULL;
if (OwningComponent == NULL && BodyInst != NULL)
{
OwningComponent = BodyInst->OwnerComponent.Get();
}
// If the shape has a different parent component, we take that one instead of the ChunkInfo. This can happen in some
// cases where APEX moves shapes internally to another actor ( ex. FormExtended structures )
if (PrimComp != NULL && OwningComponent != PrimComp)
{
OwningComponent = PrimComp;
}
OutResult.PhysMaterial = NULL;
bool bReturnBody = false;
// Grab actor/component
if( OwningComponent )
{
OutResult.Actor = OwningComponent->GetOwner();
OutResult.Component = OwningComponent;
if (bReturnPhysMat)
{
// This function returns the single material in all cases other than trimesh or heightfield
if(PxMaterial* PxMat = PShape->getMaterialFromInternalFaceIndex(FaceIndex))
{
OutResult.PhysMaterial = FPhysxUserData::Get<UPhysicalMaterial>(PxMat->userData);
}
}
bReturnBody = OwningComponent->bMultiBodyOverlap;
}
// For destructibles give the ChunkInfo-Index as Item
if (bReturnBody && ChunkInfo)
{
OutResult.Item = ChunkInfo->ChunkIndex;
UDestructibleComponent* DMComp = Cast<UDestructibleComponent>(OwningComponent);
OutResult.BoneName = DMComp->GetBoneName(UDestructibleComponent::ChunkIdxToBoneIdx(ChunkInfo->ChunkIndex));
}
// If BodyInstance and not destructible, give BodyIndex as Item
else if (BodyInst)
{
OutResult.Item = BodyInst->InstanceBodyIndex;
const UBodySetup* BodySetup = BodyInst->BodySetup.Get();
if (BodySetup)
{
OutResult.BoneName = BodySetup->BoneName;
}
}
else
{
// invalid index
OutResult.Item = INDEX_NONE;
OutResult.BoneName = NAME_None;
}
OutResult.FaceIndex = INDEX_NONE;
}
bool SetApexDestructibleAsset(UDestructibleMesh& DestructibleMesh, NxDestructibleAsset& ApexDestructibleAsset, FSkeletalMeshImportData* OutData, EDestructibleImportOptions::Type Options)
{
DestructibleMesh.PreEditChange(NULL);
ExistingDestMeshData * ExistDestMeshDataPtr = SaveExistingDestMeshData(&DestructibleMesh);
// The asset is going away, which will destroy any actors created from it. We must destroy the physics state of any destructible mesh components before we release the asset.
for(TObjectIterator<UDestructibleComponent> It; It; ++It)
{
UDestructibleComponent* DestructibleComponent = *It;
if(DestructibleComponent->SkeletalMesh == &DestructibleMesh && DestructibleComponent->IsPhysicsStateCreated())
{
DestructibleComponent->DestroyPhysicsState();
}
}
// Release old NxDestructibleAsset if it exists
if (DestructibleMesh.ApexDestructibleAsset != NULL && DestructibleMesh.ApexDestructibleAsset != &ApexDestructibleAsset)
{
GPhysCommandHandler->DeferredRelease(DestructibleMesh.ApexDestructibleAsset);
}
// BRGTODO - need to remove the render data from the ApexDestructibleAsset, no longer need it
// Removing const cast ... we'll have to make it non-const anyway when we modify it
DestructibleMesh.ApexDestructibleAsset = &ApexDestructibleAsset;
if ( !(Options&EDestructibleImportOptions::PreserveSettings) )
{
// Resize the depth parameters array to the appropriate size
DestructibleMesh.DefaultDestructibleParameters.DepthParameters.Init(FDestructibleDepthParameters(), ApexDestructibleAsset.getDepthCount());
// Resize the fracture effects array to the appropriate size
DestructibleMesh.FractureEffects.AddZeroed(ApexDestructibleAsset.getDepthCount());
// Load the UnrealEd-editable parameters from the destructible asset
DestructibleMesh.LoadDefaultDestructibleParametersFromApexAsset();
}
// Create body setup for the destructible mesh
DestructibleMesh.CreateBodySetup();
#if 0 // BRGTODO
// warning for missing smoothing group info
CheckSmoothingInfo(FbxMesh);
#endif
FSkeletalMeshImportData TempData;
// Fill with data from buffer
FSkeletalMeshImportData* SkelMeshImportDataPtr = &TempData;
if( OutData )
{
SkelMeshImportDataPtr = OutData;
}
// Get all material names here
ImportMaterialsForSkelMesh(*SkelMeshImportDataPtr, ApexDestructibleAsset);
// Import animation hierarchy, although this is trivial for an Apex Destructible Asset
CreateBones(*SkelMeshImportDataPtr, ApexDestructibleAsset);
// Import graphics data
bool bHaveNormals, bHaveTangents;
if (!FillSkelMeshImporterFromApexDestructibleAsset(*SkelMeshImportDataPtr, ApexDestructibleAsset, bHaveNormals, bHaveTangents))
{
return false;
}
#if 0 // BRGTODO - what is this?
if( SkelMeshImportDataPtr->Materials.Num() == FbxMatList.Num() )
{
// reorder material according to "SKinXX" in material name
SetMaterialSkinXXOrder(*SkelMeshImportDataPtr, FbxMatList );
}
#endif
#if 0 // BRGTODO - what is this?
if( ImportOptions->bSplitNonMatchingTriangles )
{
DoUnSmoothVerts(*SkelMeshImportDataPtr);
}
#endif
// process materials from import data
ProcessImportMeshMaterials( DestructibleMesh.Materials,*SkelMeshImportDataPtr );
// process reference skeleton from import data
int32 SkeletalDepth=0;
if(!ProcessImportMeshSkeleton(DestructibleMesh.RefSkeleton, SkeletalDepth, *SkelMeshImportDataPtr))
{
return false;
}
UE_LOG(LogApexDestructibleAssetImport, Warning, TEXT("Bones digested - %i Depth of hierarchy - %i"), DestructibleMesh.RefSkeleton.GetNum(), SkeletalDepth);
// process bone influences from import data
ProcessImportMeshInfluences(*SkelMeshImportDataPtr);
FSkeletalMeshResource& DestructibleMeshResource = *DestructibleMesh.GetImportedResource();
check(DestructibleMeshResource.LODModels.Num() == 0);
DestructibleMeshResource.LODModels.Empty();
new(DestructibleMeshResource.LODModels)FStaticLODModel();
DestructibleMesh.LODInfo.Empty();
DestructibleMesh.LODInfo.AddZeroed();
DestructibleMesh.LODInfo[0].LODHysteresis = 0.02f;
// Create initial bounding box based on expanded version of reference pose for meshes without physics assets. Can be overridden by artist.
FBox BoundingBox(SkelMeshImportDataPtr->Points.GetData(), SkelMeshImportDataPtr->Points.Num());
DestructibleMesh.Bounds= FBoxSphereBounds(BoundingBox);
// Store whether or not this mesh has vertex colors
DestructibleMesh.bHasVertexColors = SkelMeshImportDataPtr->bHasVertexColors;
FStaticLODModel& LODModel = DestructibleMeshResource.LODModels[0];
// Pass the number of texture coordinate sets to the LODModel. Ensure there is at least one UV coord
LODModel.NumTexCoords = FMath::Max<uint32>(1,SkelMeshImportDataPtr->NumTexCoords);
// if( bCreateRenderData ) // We always create render data
{
// copy vertex data needed to generate skinning streams for LOD
TArray<FVector> LODPoints;
TArray<FMeshWedge> LODWedges;
TArray<FMeshFace> LODFaces;
TArray<FVertInfluence> LODInfluences;
TArray<int32> LODPointToRawMap;
SkelMeshImportDataPtr->CopyLODImportData(LODPoints,LODWedges,LODFaces,LODInfluences,LODPointToRawMap);
IMeshUtilities& MeshUtilities = FModuleManager::Get().LoadModuleChecked<IMeshUtilities>("MeshUtilities");
// Create actual rendering data.
if (!MeshUtilities.BuildSkeletalMesh(DestructibleMeshResource.LODModels[0], DestructibleMesh.RefSkeleton, LODInfluences,LODWedges,LODFaces,LODPoints,LODPointToRawMap,false,!bHaveNormals,!bHaveTangents))
{
DestructibleMesh.MarkPendingKill();
return false;
}
// Presize the per-section shadow casting array with the number of sections in the imported LOD.
const int32 NumSections = LODModel.Sections.Num();
for ( int32 SectionIndex = 0 ; SectionIndex < NumSections ; ++SectionIndex )
{
DestructibleMesh.LODInfo[0].TriangleSortSettings.AddZeroed();
}
if (ExistDestMeshDataPtr)
{
RestoreExistingDestMeshData(ExistDestMeshDataPtr, &DestructibleMesh);
delete ExistDestMeshDataPtr;
ExistDestMeshDataPtr = NULL;
}
DestructibleMesh.CalculateInvRefMatrices();
DestructibleMesh.PostEditChange();
DestructibleMesh.MarkPackageDirty();
#if 0 // BRGTODO : Check, we don't need this, do we?
// We have to go and fix any AnimSetMeshLinkup objects that refer to this skeletal mesh, as the reference skeleton has changed.
for(TObjectIterator<UAnimSet> It;It;++It)
{
UAnimSet* AnimSet = *It;
// Get DestructibleMesh path name
FName SkelMeshName = FName( *DestructibleMesh.GetPathName() );
// See if we have already cached this Skeletal Mesh.
const int32* IndexPtr = AnimSet->SkelMesh2LinkupCache.Find( SkelMeshName );
if( IndexPtr )
{
AnimSet->LinkupCache( *IndexPtr ).BuildLinkup( &DestructibleMesh, AnimSet );
}
}
#endif
// Now iterate over all skeletal mesh components re-initialising them.
for(TObjectIterator<UDestructibleComponent> It; It; ++It)
{
UDestructibleComponent* DestructibleComponent = *It;
if(DestructibleComponent->SkeletalMesh == &DestructibleMesh)
{
FComponentReregisterContext ReregisterContext(DestructibleComponent);
}
}
}
#if INVERT_Y_AND_V
// Apply transformation for Y inversion
const physx::PxMat44 MirrorY = physx::PxMat44(physx::PxVec4(1.0f, -1.0f, 1.0f, 1.0f));
#if !USE_TEMPORARY_TRANSFORMATION_FUNCTION
ApexDestructibleAsset.applyTransformation(MirrorY, 1.0f);
#else
ApplyTransformationToApexDestructibleAsset( ApexDestructibleAsset, MirrorY );
#endif
#endif
return true;
}
void FDestructibleMeshEditorViewportClient::ProcessClick( class FSceneView& View, class HHitProxy* HitProxy, FKey Key, EInputEvent Event, uint32 HitX, uint32 HitY )
{
#if WITH_APEX
bool bKeepSelection = Viewport->KeyState(EKeys::LeftControl) || Viewport->KeyState(EKeys::RightControl);
bool bSelectionChanged = false;
if (Key == EKeys::LeftMouseButton && Event == EInputEvent::IE_Released)
{
UDestructibleComponent* Comp = PreviewDestructibleComp.Get();
NxDestructibleAsset* Asset = Comp->DestructibleMesh->ApexDestructibleAsset;
const NxRenderMeshAsset* RenderMesh = Asset->getRenderMeshAsset();
FVector2D ScreenPos(HitX, HitY);
FVector ClickOrigin, ViewDir;
View.DeprojectFVector2D(ScreenPos, ClickOrigin, ViewDir);
float NearestHitDistance = FLT_MAX;
int32 ClickedChunk = -1;
for (uint32 i=0; i < Asset->getChunkCount(); ++i)
{
int32 PartIdx = Asset->getPartIndex(i);
int32 BoneIdx = i+1;
if (!Comp->IsBoneHidden(BoneIdx))
{
PxBounds3 PBounds = RenderMesh->getBounds(PartIdx);
FVector Center = P2UVector(PBounds.getCenter()) + Comp->GetBoneLocation(Comp->GetBoneName(BoneIdx));
FVector Extent = P2UVector(PBounds.getExtents());
FBox Bounds(Center - Extent, Center + Extent);
FVector HitLoc, HitNorm;
float HitTime;
if (FMath::LineExtentBoxIntersection(Bounds, ClickOrigin, ClickOrigin + ViewDir * 1000.0f, FVector(0,0,0), HitLoc, HitNorm, HitTime))
{
float dist = (HitLoc - ClickOrigin).SizeSquared();
if (dist < NearestHitDistance)
{
NearestHitDistance = dist;
ClickedChunk = i;
}
}
}
}
if (ClickedChunk >= 0)
{
int32 Idx = SelectedChunkIndices.Find(ClickedChunk);
if (Idx < 0)
{
if (!bKeepSelection) { SelectedChunkIndices.Empty(); }
SelectedChunkIndices.Add(ClickedChunk);
bSelectionChanged = true;
}
else
{
SelectedChunkIndices.RemoveAt(Idx);
bSelectionChanged = true;
}
}
else if (!bKeepSelection)
{
SelectedChunkIndices.Empty();
bSelectionChanged = true;
}
}
if (bSelectionChanged)
{
UpdateChunkSelection(SelectedChunkIndices);
}
#endif // WITH_APEX
}
