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#rb semion.piskarev ryan.schmidt #jira none #rnx [CL 15741814 by lonnie li in ue5-main branch]
94 lines
2.5 KiB
C++
94 lines
2.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "DynamicMeshBrushTool.h"
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#include "InteractiveToolManager.h"
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#include "ToolBuilderUtil.h"
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#include "TargetInterfaces/MaterialProvider.h"
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#include "TargetInterfaces/MeshDescriptionProvider.h"
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#include "TargetInterfaces/PrimitiveComponentBackedTarget.h"
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#include "ExplicitUseGeometryMathTypes.h" // using UE::Geometry::(math types)
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using namespace UE::Geometry;
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// localization namespace
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#define LOCTEXT_NAMESPACE "UDynamicMeshBrushTool"
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/*
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* Tool
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*/
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UDynamicMeshBrushTool::UDynamicMeshBrushTool()
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{
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}
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void UDynamicMeshBrushTool::Setup()
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{
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IPrimitiveComponentBackedTarget* TargetComponent = Cast<IPrimitiveComponentBackedTarget>(Target);
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PreviewMesh = NewObject<UPreviewMesh>(this);
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PreviewMesh->bBuildSpatialDataStructure = true;
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PreviewMesh->CreateInWorld(TargetComponent->GetOwnerActor()->GetWorld(), FTransform::Identity);
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PreviewMesh->SetTransform(TargetComponent->GetWorldTransform());
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FComponentMaterialSet MaterialSet;
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Cast<IMaterialProvider>(Target)->GetMaterialSet(MaterialSet);
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PreviewMesh->SetMaterials(MaterialSet.Materials);
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// initialize from LOD-0 MeshDescription
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PreviewMesh->InitializeMesh(Cast<IMeshDescriptionProvider>(Target)->GetMeshDescription());
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OnBaseMeshComponentChangedHandle = PreviewMesh->GetOnMeshChanged().Add(
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FSimpleMulticastDelegate::FDelegate::CreateUObject(this, &UDynamicMeshBrushTool::OnBaseMeshComponentChanged));
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// call this here so that base tool can estimate target dimension
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InputMeshBoundsLocal = PreviewMesh->GetPreviewDynamicMesh()->GetBounds();
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double ScaledDim = TargetComponent->GetWorldTransform().TransformVector(FVector::OneVector).Size();
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this->WorldToLocalScale = FMathd::Sqrt3 / FMathd::Max(FMathf::ZeroTolerance, ScaledDim);
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UBaseBrushTool::Setup();
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// hide input StaticMeshComponent
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TargetComponent->SetOwnerVisibility(false);
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}
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double UDynamicMeshBrushTool::EstimateMaximumTargetDimension()
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{
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return InputMeshBoundsLocal.MaxDim();
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}
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void UDynamicMeshBrushTool::Shutdown(EToolShutdownType ShutdownType)
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{
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UBaseBrushTool::Shutdown(ShutdownType);
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Cast<IPrimitiveComponentBackedTarget>(Target)->SetOwnerVisibility(true);
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if (PreviewMesh != nullptr)
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{
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PreviewMesh->GetOnMeshChanged().Remove(OnBaseMeshComponentChangedHandle);
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OnShutdown(ShutdownType);
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PreviewMesh->SetVisible(false);
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PreviewMesh->Disconnect();
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PreviewMesh = nullptr;
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}
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}
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bool UDynamicMeshBrushTool::HitTest(const FRay& Ray, FHitResult& OutHit)
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{
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return PreviewMesh->FindRayIntersection(FRay3d(Ray), OutHit);
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}
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#undef LOCTEXT_NAMESPACE
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