80 lines
2.2 KiB
C++
80 lines
2.2 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 "Dataflow/DataflowEngine.h"
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#include "Dataflow/DataflowSelection.h"
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#include "DynamicMesh/DynamicMesh3.h"
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#include "DynamicMeshProcessor.h"
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#include "MeshBooleanNodes.generated.h"
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class UDynamicMesh;
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class UMaterialInterface;
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UENUM(BlueprintType)
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enum class EMeshBooleanOperationEnum : uint8
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{
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// A union of A + B includes everything inside either A or B
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Dataflow_MeshBoolean_Union UMETA(DisplayName = "Union"),
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// An intersection of A & B includes only the points inside both A and B, i.e. trimming A by B (and vice versa)
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Dataflow_MeshBoolean_Intersect UMETA(DisplayName = "Intersect"),
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// A difference of A - B includes only the points inside A that are outside of B, i.e. subtracting B from A
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Dataflow_MeshBoolean_Difference UMETA(DisplayName = "Difference"),
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//~~~
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//256th entry
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Dataflow_Max UMETA(Hidden)
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};
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/**
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*
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* Compute a Mesh Boolean between Mesh1 and Mesh2
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*
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* Supported Boolean Operations:
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* Union (Mesh1 + Mesh2)
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* Difference (Mesh1 - Mesh2; removing what's inside of Mesh2 from Mesh1)
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* Intersection (Mesh1 & Mesh2; removing what's outside of Mesh2 from Mesh1)
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*
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*/
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USTRUCT()
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struct FMeshBooleanDataflowNode : public FDataflowNode
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{
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GENERATED_USTRUCT_BODY()
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DATAFLOW_NODE_DEFINE_INTERNAL(FMeshBooleanDataflowNode, "MeshBoolean", "Mesh|Utilities", "")
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DATAFLOW_NODE_RENDER_TYPE("SurfaceRender",FName("FDynamicMesh3"), "Mesh")
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public:
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FMeshBooleanDataflowNode(const UE::Dataflow::FNodeParameters& InParam, FGuid InGuid = FGuid::NewGuid());
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private:
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/** Boolean operation */
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UPROPERTY(EditAnywhere, Category = "Boolean");
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EMeshBooleanOperationEnum Operation = EMeshBooleanOperationEnum::Dataflow_MeshBoolean_Intersect;
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/** Mesh input */
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UPROPERTY(meta = (DataflowInput, DataflowIntrinsic))
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TObjectPtr<UDynamicMesh> Mesh1;
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/** Mesh input */
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UPROPERTY(meta = (DataflowInput, DataflowIntrinsic))
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TObjectPtr<UDynamicMesh> Mesh2;
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/** Output mesh */
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UPROPERTY(meta = (DataflowOutput))
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TObjectPtr<UDynamicMesh> Mesh;
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virtual void Evaluate(UE::Dataflow::FContext& Context, const FDataflowOutput* Out) const override;
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};
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namespace UE::Dataflow
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{
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void MeshBooleanNodes();
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}
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