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#jira UETOOL-3823 #rb lonnie.li #preflight 617b1aea5794a500014f544a #ROBOMERGE-AUTHOR: michael.balzer #ROBOMERGE-SOURCE: CL 17972239 in //UE5/Release-5.0/... via CL 17972248 #ROBOMERGE-BOT: STARSHIP (Release-Engine-Staging -> Release-Engine-Test) (v885-17909292) #ROBOMERGE[STARSHIP]: UE5-Main [CL 17972256 by michael balzer in ue5-release-engine-test branch]
127 lines
3.1 KiB
C++
127 lines
3.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Changes/MeshPolygroupChange.h"
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#include "DynamicMesh/DynamicMesh3.h"
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#include "DynamicMesh/DynamicMeshAttributeSet.h"
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using namespace UE::Geometry;
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void FDynamicMeshGroupEdit::ApplyToMesh(FDynamicMesh3* Mesh, bool bRevert)
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{
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int32 NumTris = Triangles.Num();
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if (GroupLayerIndex < 0)
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{
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if (ensure(Mesh->HasTriangleGroups()) == false) return;
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for (int32 k = 0; k < NumTris; ++k)
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{
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int32 tid = Triangles[k];
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if (Mesh->IsTriangle(tid))
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{
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int32 SetGroup = (bRevert) ? OldGroups[k] : NewGroups[k];
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Mesh->SetTriangleGroup(tid, SetGroup);
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}
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}
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}
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else
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{
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if ( ensure(Mesh->HasAttributes()) == false ||
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ensure(GroupLayerIndex <= Mesh->Attributes()->NumPolygroupLayers()) == false ) return;
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FDynamicMeshPolygroupAttribute* PolygroupLayer = Mesh->Attributes()->GetPolygroupLayer(GroupLayerIndex);
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if (ensure(PolygroupLayer))
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{
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for (int32 k = 0; k < NumTris; ++k)
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{
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int32 tid = Triangles[k];
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if (Mesh->IsTriangle(tid))
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{
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int32 SetGroup = (bRevert) ? OldGroups[k] : NewGroups[k];
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PolygroupLayer->SetValue(tid, SetGroup);
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}
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}
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}
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}
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}
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FDynamicMeshGroupEditBuilder::FDynamicMeshGroupEditBuilder(FDynamicMesh3* Mesh)
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{
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PolygroupSet = MakePimpl<UE::Geometry::FPolygroupSet>(Mesh);
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Edit = MakeUnique<FDynamicMeshGroupEdit>();
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}
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FDynamicMeshGroupEditBuilder::FDynamicMeshGroupEditBuilder(FDynamicMesh3* Mesh, int32 GroupLayer)
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{
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PolygroupSet = MakePimpl<UE::Geometry::FPolygroupSet>(Mesh, GroupLayer);
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Edit = MakeUnique<FDynamicMeshGroupEdit>();
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if (ensure(PolygroupSet->GetPolygroupIndex() != -1))
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{
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Edit->GroupLayerIndex = PolygroupSet->GetPolygroupIndex();
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}
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}
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FDynamicMeshGroupEditBuilder::FDynamicMeshGroupEditBuilder(UE::Geometry::FPolygroupSet* PolygroupSetIn)
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{
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PolygroupSet = MakePimpl<UE::Geometry::FPolygroupSet>(*PolygroupSetIn);
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Edit = MakeUnique<FDynamicMeshGroupEdit>();
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if (PolygroupSet->GetPolygroupIndex() != -1)
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{
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Edit->GroupLayerIndex = PolygroupSet->GetPolygroupIndex();
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}
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}
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void FDynamicMeshGroupEditBuilder::SaveTriangle(int32 TriangleID)
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{
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int32 NewGroupID = PolygroupSet->GetGroup(TriangleID);
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const int32* NewIndex = SavedIndexMap.Find(TriangleID);
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if (NewIndex == nullptr)
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{
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int32 Index = Edit->Triangles.Num();
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SavedIndexMap.Add(TriangleID, Index);
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Edit->Triangles.Add(TriangleID);
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Edit->OldGroups.Add(NewGroupID);
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Edit->NewGroups.Add(NewGroupID);
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}
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else
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{
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Edit->NewGroups[*NewIndex] = PolygroupSet->GetGroup(TriangleID);
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}
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}
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void FDynamicMeshGroupEditBuilder::SaveTriangle(int32 TriangleID, int32 OldGroup, int32 NewGroup)
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{
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const int32* NewIndex = SavedIndexMap.Find(TriangleID);
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if (NewIndex == nullptr)
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{
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int32 Index = Edit->Triangles.Num();
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SavedIndexMap.Add(TriangleID, Index);
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Edit->Triangles.Add(TriangleID);
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Edit->OldGroups.Add(OldGroup);
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Edit->NewGroups.Add(NewGroup);
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}
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else
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{
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Edit->NewGroups[*NewIndex] = NewGroup;
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}
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}
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FMeshPolygroupChange::FMeshPolygroupChange(TUniquePtr<FDynamicMeshGroupEdit>&& GroupEditIn)
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{
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GroupEdit = MoveTemp(GroupEditIn);
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}
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void FMeshPolygroupChange::ApplyChangeToMesh(FDynamicMesh3* Mesh, bool bRevert) const
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{
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GroupEdit->ApplyToMesh(Mesh, bRevert);
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}
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