158 lines
5.9 KiB
C++
158 lines
5.9 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "BaseTools/MultiSelectionMeshEditingTool.h"
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#include "InteractiveToolBuilder.h"
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#include "MeshOpPreviewHelpers.h"
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#include "CleaningOps/RemeshMeshOp.h"
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#include "Properties/RemeshProperties.h"
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#include "RemeshMeshTool.generated.h"
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#define UE_API MESHMODELINGTOOLS_API
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class UMeshStatisticsProperties;
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class UMeshElementsVisualizer;
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PREDECLARE_GEOMETRY(class FDynamicMesh3);
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PREDECLARE_GEOMETRY(typedef TMeshAABBTree3<FDynamicMesh3> FDynamicMeshAABBTree3);
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/**
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*
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*/
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UCLASS(MinimalAPI)
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class URemeshMeshToolBuilder : public UMultiSelectionMeshEditingToolBuilder
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{
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GENERATED_BODY()
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public:
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/**
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* Return true if we have one object selected. URemeshMeshTool is a UMultiSelectionTool, however we currently
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* only ever apply it to a single mesh. (See comment at URemeshMeshTool definition below.)
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*/
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UE_API virtual bool CanBuildTool(const FToolBuilderState& SceneState) const override;
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UE_API virtual UMultiSelectionMeshEditingTool* CreateNewTool(const FToolBuilderState& SceneState) const override;
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protected:
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UE_API virtual const FToolTargetTypeRequirements& GetTargetRequirements() const override;
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};
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/**
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* Standard properties of the Remesh operation
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*/
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UCLASS(MinimalAPI)
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class URemeshMeshToolProperties : public URemeshProperties
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{
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GENERATED_BODY()
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public:
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UE_API URemeshMeshToolProperties();
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/** Target triangle count */
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UPROPERTY(EditAnywhere, Category = Remeshing, meta = (ClampMin = 0, EditCondition = "bUseTargetEdgeLength == false"))
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int TargetTriangleCount;
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/** Smoothing type */
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UPROPERTY(EditAnywhere, Category = Remeshing)
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ERemeshSmoothingType SmoothingType;
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/** Discard UVs and existing normals, allowing the remesher to ignore any UV and normal seams. New per-vertex normals are computed. */
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UPROPERTY(EditAnywhere, Category = Remeshing)
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bool bDiscardAttributes;
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/** Display colors corresponding to the mesh's polygon groups */
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UPROPERTY(EditAnywhere, Category = Display)
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bool bShowGroupColors = false;
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/** Remeshing type */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay)
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ERemeshType RemeshType;
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/** Number of Remeshing passes */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay, meta = (EditCondition = "RemeshType == ERemeshType::FullPass", UIMin = "0", UIMax = "50", ClampMin = "0", ClampMax = "1000"))
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int RemeshIterations;
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/** Maximum number of Remeshing passes, for Remeshers that have convergence criteria */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay, meta = (EditCondition = "RemeshType != ERemeshType::FullPass", UIMin = "0", UIMax = "200", ClampMin = "0", ClampMax = "200"))
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int MaxRemeshIterations;
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/** For NormalFlowRemesher: extra iterations of normal flow with no remeshing */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay, meta = (EditCondition = "RemeshType == ERemeshType::NormalFlow", UIMin = "0", UIMax = "200", ClampMin = "0", ClampMax = "200"))
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int ExtraProjectionIterations;
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/** If true, the target count is ignored and the target edge length is used directly */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay)
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bool bUseTargetEdgeLength;
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/** Remesh to have edges approximately this length. An attempt at a reasonable value is computed automatically for this field based on the selected target mesh. */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay, meta = (NoSpinbox = "true", EditCondition = "bUseTargetEdgeLength == true", NoResetToDefault))
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float TargetEdgeLength;
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/** Enable projection back to input mesh */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay)
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bool bReproject;
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/** Project constrained vertices back to original constraint curves */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay)
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bool bReprojectConstraints;
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/** Angle threshold in degrees for classifying a boundary vertex as a corner. Corners will be fixed if Reproject Constraints is active. */
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UPROPERTY(EditAnywhere, Category = Remeshing, AdvancedDisplay, meta = (EditCondition = "bReprojectConstraints", UIMin = "0", UIMax = "180", ClampMin = "0", ClampMax = "180"))
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float BoundaryCornerAngleThreshold;
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};
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/**
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* Simple Mesh Remeshing Tool
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*
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* Note this is a subclass of UMultiSelectionTool, however we currently only ever apply it to one mesh at a time. The
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* function URemeshMeshToolBuilder::CanBuildTool will return true only when a single mesh is selected, and the tool will
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* only be applied to the first mesh in the selection list. The reason we inherit from UMultiSelectionTool is so
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* that subclasses of this class can work with multiple meshes (see, for example, UProjectToTargetTool.)
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*/
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UCLASS(MinimalAPI)
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class URemeshMeshTool : public UMultiSelectionMeshEditingTool, public UE::Geometry::IDynamicMeshOperatorFactory
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{
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GENERATED_BODY()
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public:
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UE_API URemeshMeshTool(const FObjectInitializer&);
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UE_API virtual void Setup() override;
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UE_API virtual void OnShutdown(EToolShutdownType ShutdownType) override;
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UE_API virtual void OnTick(float DeltaTime) override;
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virtual bool HasCancel() const override { return true; }
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virtual bool HasAccept() const override { return true; }
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UE_API virtual bool CanAccept() const override;
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UE_API virtual void OnPropertyModified(UObject* PropertySet, FProperty* Property) override;
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// IDynamicMeshOperatorFactory API
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UE_API virtual TUniquePtr<UE::Geometry::FDynamicMeshOperator> MakeNewOperator() override;
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UPROPERTY()
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TObjectPtr<URemeshMeshToolProperties> BasicProperties;
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UPROPERTY()
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TObjectPtr<UMeshStatisticsProperties> MeshStatisticsProperties;
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UPROPERTY()
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TObjectPtr<UMeshOpPreviewWithBackgroundCompute> Preview;
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UPROPERTY()
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TObjectPtr<UMeshElementsVisualizer> MeshElementsDisplay;
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protected:
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TSharedPtr<UE::Geometry::FDynamicMesh3, ESPMode::ThreadSafe> OriginalMesh;
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TSharedPtr<UE::Geometry::FDynamicMeshAABBTree3, ESPMode::ThreadSafe> OriginalMeshSpatial;
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double InitialMeshArea;
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UE_API void UpdateVisualization();
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};
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#undef UE_API
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