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1a178fa774
UMeshElementsVisualizer::SetMeshAccessFunction() now takes a TFunction with a TFunctionRef argument, instead of with a FDynamicMesh3* argument. This allows the UMeshElementsVisualizer to access the target mesh via the ProcessMesh()-style call on a UPreviewMesh, UDynamicMesh, etc, rather than receiving direct pointer access. See UWeldMeshEdgesTool::Setup() for example usage. Add UMeshOpPreviewWithBackgroundCompute::ProcessCurrentMesh(), which forwards to the embedded UPreviewMesh::ProcessMesh() (which can be used with the above) Add UE::ToolTarget::GetMeshDescriptionCopy() to ModelingToolTargetUtil, similar to existing DynamicMesh variant that will auto-compute tangents if necessary. #rb none #rnx #jira none #preflight 60c8def586ce760001d8de51 #fyi semion.piskarev [CL 16679472 by Ryan Schmidt in ue5-main branch]
126 lines
3.5 KiB
C++
126 lines
3.5 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/SingleSelectionMeshEditingTool.h"
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#include "PreviewMesh.h"
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#include "ModelingOperators.h"
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#include "MeshOpPreviewHelpers.h"
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#include "ConvertToPolygonsTool.generated.h"
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// predeclaration
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class UConvertToPolygonsTool;
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class FConvertToPolygonsOp;
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class UPreviewGeometry;
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PREDECLARE_GEOMETRY(class FDynamicMesh3);
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/**
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*
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*/
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UCLASS()
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class MESHMODELINGTOOLS_API UConvertToPolygonsToolBuilder : public USingleSelectionMeshEditingToolBuilder
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{
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GENERATED_BODY()
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public:
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virtual USingleSelectionMeshEditingTool* CreateNewTool(const FToolBuilderState & SceneState) const override;
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};
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UENUM()
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enum class EConvertToPolygonsMode
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{
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/** Convert based on Angle Tolerance between Face Normals */
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FaceNormalDeviation UMETA(DisplayName = "Face Normal Deviation"),
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/** Create PolyGroups based on UV Islands */
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FromUVIslands UMETA(DisplayName = "From UV Islands"),
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/** Create Polygroups based on Connected Triangles */
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FromConnectedTris UMETA(DisplayName = "From Connected Tris")
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};
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UCLASS()
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class MESHMODELINGTOOLS_API UConvertToPolygonsToolProperties : public UInteractiveToolPropertySet
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{
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GENERATED_BODY()
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public:
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/** Strategy to use to group triangles */
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UPROPERTY(EditAnywhere, Category = PolyGroups)
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EConvertToPolygonsMode ConversionMode = EConvertToPolygonsMode::FaceNormalDeviation;
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/** Tolerance for planarity */
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UPROPERTY(EditAnywhere, Category = PolyGroups, meta = (UIMin = "0.001", UIMax = "20.0", ClampMin = "0.0", ClampMax = "90.0", EditCondition = "ConversionMode == EConvertToPolygonsMode::FaceNormalDeviation", EditConditionHides))
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float AngleTolerance = 0.1f;
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/** If true, normals are recomputed per-group, with hard edges at group boundaries */
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UPROPERTY(EditAnywhere, Category = PolyGroups, meta = (EditCondition = "ConversionMode == EConvertToPolygonsMode::FaceNormalDeviation", EditConditionHides))
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bool bCalculateNormals = true;
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/** Display each group with a different auto-generated color */
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UPROPERTY(EditAnywhere, Category = Display)
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bool bShowGroupColors = true;
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};
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UCLASS()
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class MESHMODELINGTOOLS_API UConvertToPolygonsOperatorFactory : public UObject, public UE::Geometry::IDynamicMeshOperatorFactory
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{
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GENERATED_BODY()
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public:
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// IDynamicMeshOperatorFactory API
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virtual TUniquePtr<UE::Geometry::FDynamicMeshOperator> MakeNewOperator() override;
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UPROPERTY()
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UConvertToPolygonsTool* ConvertToPolygonsTool; // back pointer
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};
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/**
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*
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*/
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UCLASS()
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class MESHMODELINGTOOLS_API UConvertToPolygonsTool : public USingleSelectionMeshEditingTool
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{
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GENERATED_BODY()
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public:
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UConvertToPolygonsTool();
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virtual void Setup() override;
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virtual void Shutdown(EToolShutdownType ShutdownType) override;
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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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virtual bool CanAccept() const override;
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// update parameters in ConvertToPolygonsOp based on current Settings
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void UpdateOpParameters(FConvertToPolygonsOp& ConvertToPolygonsOp) const;
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protected:
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void OnSettingsModified();
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protected:
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UPROPERTY()
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UConvertToPolygonsToolProperties* Settings;
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UPROPERTY()
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UMeshOpPreviewWithBackgroundCompute* PreviewCompute = nullptr;
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UPROPERTY()
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UPreviewGeometry* PreviewGeometry = nullptr;
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protected:
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TSharedPtr<UE::Geometry::FDynamicMesh3, ESPMode::ThreadSafe> OriginalDynamicMesh;
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// for visualization
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TArray<int> PolygonEdges;
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void UpdateVisualization();
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};
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