121 lines
3.3 KiB
C++
121 lines
3.3 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 "UObject/NoExportTypes.h"
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#include "BaseTools/BaseVoxelTool.h"
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#include "VoxelBlendMeshesTool.generated.h"
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#define UE_API MESHMODELINGTOOLSEXP_API
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/** CSG-style blend operations */
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UENUM()
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enum class EVoxelBlendOperation : uint8
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{
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/** Smoothed union of all shapes */
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Union = 0,
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/** Smoothed subtraction of all shapes from the first selected shape */
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Subtract = 1,
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};
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/**
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* Properties of the blend operation
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*/
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UCLASS(MinimalAPI)
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class UVoxelBlendMeshesToolProperties : public UInteractiveToolPropertySet
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{
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GENERATED_BODY()
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public:
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/** Blend power controls the shape of the blend between shapes */
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UPROPERTY(EditAnywhere, Category = Blend, meta = (UIMin = "1", UIMax = "4", ClampMin = "1", ClampMax = "10"))
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double BlendPower = 2;
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/** Blend falloff controls the size of the blend region */
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UPROPERTY(EditAnywhere, Category = Blend, meta = (UIMin = ".1", UIMax = "100", ClampMin = ".001", ClampMax = "1000"))
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double BlendFalloff = 10;
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/** How to combine the shapes */
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UPROPERTY(EditAnywhere, Category = Blend)
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EVoxelBlendOperation Operation = EVoxelBlendOperation::Union;
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/** Apply a "VoxWrap" operation to input mesh(es) before computing the blend. Fixes results for inputs with holes and/or self-intersections. */
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UPROPERTY(EditAnywhere, Category = VoxWrapPreprocess)
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bool bVoxWrap = false;
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/** Remove internal surfaces from the VoxWrap output, before computing the blend. */
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UPROPERTY(EditAnywhere, Category = VoxWrapPreprocess, meta = (EditCondition = "bVoxWrap == true"))
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bool bRemoveInternalsAfterVoxWrap = false;
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/** Thicken open-boundary surfaces (extrude them inwards) before VoxWrapping them. Units are in world space. If 0 then no extrusion is applied. */
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UPROPERTY(EditAnywhere, Category = VoxWrapPreprocess, meta = (EditCondition = "bVoxWrap == true", UIMin = "0", UIMax = "100", ClampMin = "0", ClampMax = "1000"))
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double ThickenShells = 0.0;
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};
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/**
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* Tool to smoothly blend meshes together
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*/
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UCLASS(MinimalAPI)
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class UVoxelBlendMeshesTool : public UBaseVoxelTool
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{
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GENERATED_BODY()
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public:
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UVoxelBlendMeshesTool() {}
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protected:
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UE_API virtual void SetupProperties() override;
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UE_API virtual void SaveProperties() override;
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UE_API virtual FString GetCreatedAssetName() const override;
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UE_API virtual FText GetActionName() const override;
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UE_API virtual void ConvertInputsAndSetPreviewMaterials(bool bSetPreviewMesh) override;
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// TODO: this tool also needs a warning for meshes w/ open boundaries
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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<UVoxelBlendMeshesToolProperties> BlendProperties;
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virtual bool KeepCollisionFrom(int32 TargetIdx) const override
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{
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if (BlendProperties->Operation == EVoxelBlendOperation::Subtract)
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{
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return TargetIdx == 0;
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}
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return true;
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}
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};
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UCLASS(MinimalAPI)
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class UVoxelBlendMeshesToolBuilder : public UBaseCreateFromSelectedToolBuilder
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{
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GENERATED_BODY()
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public:
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virtual int32 MinComponentsSupported() const override { return 2; }
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virtual UMultiSelectionMeshEditingTool* CreateNewTool(const FToolBuilderState& SceneState) const override
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{
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return NewObject<UVoxelBlendMeshesTool>(SceneState.ToolManager);
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}
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};
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#undef UE_API
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