105 lines
3.7 KiB
C++
105 lines
3.7 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 "VectorTypes.h"
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PREDECLARE_GEOMETRY(class FDynamicMesh3);
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namespace UE
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{
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namespace Solvers
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{
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using namespace UE::Geometry;
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/**
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* Interface to a index-based deformation solver for a 3D mesh vertex set that supports weighted point constraints.
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*/
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class IConstrainedMeshSolver
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{
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public:
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virtual ~IConstrainedMeshSolver() {}
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// Add or update a weighted positional constraint associated with VtxId
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// @param bPostFix if true, this constraint will be explicitly applied after the solve
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virtual void AddConstraint(const int32 VtxId, const double Weight, const FVector3d& Position, const bool bPostFix) = 0;
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// Update or Create a constraint position associated with @param VtxId
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// @return true if a constraint weight is associated with @param VtxId
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virtual bool UpdateConstraintPosition(const int32 VtxId, const FVector3d& Position, const bool bPostFix) = 0;
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// Update or Create a constraint weight associated with @param VtxId
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// @return true if a constraint position is associated with @param VtxId
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virtual bool UpdateConstraintWeight(const int32 VtxId, const double Weight) = 0;
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// Clear all constraints (Positions and Weights)
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virtual void ClearConstraints() = 0;
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// Clear all Constraint Weights
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virtual void ClearConstraintWeights() = 0;
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// Clear all Constraint Positions
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virtual void ClearConstraintPositions() = 0;
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// Test if a non-zero weighted constraint is associated with VtxId
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virtual bool IsConstrained(const int32 VtxId) const = 0;
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// Returns the vertex locations of the deformed mesh.
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// Note the array may have empty elements as the index matches the Mesh based VtxId. PositionBuffer[VtxId] = Pos.
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virtual bool Deform(TArray<FVector3d>& PositionBuffer) = 0;
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};
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/**
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* Extension of IConstrainedMeshSolver that supports manipulating the underlying Laplacian vectors
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* used in Laplacian-based Deformation Solvers.
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*/
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class IConstrainedLaplacianMeshSolver : public IConstrainedMeshSolver
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{
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public:
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virtual ~IConstrainedLaplacianMeshSolver() {}
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// Update global scale applied to Laplacian vectors before solve.
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virtual void UpdateLaplacianScale(double UniformScale) = 0;
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};
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/**
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* Interface to a index-based UV solver for a 3D triangle mesh that supports weighted point constraints.
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*/
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class IConstrainedMeshUVSolver
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{
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public:
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virtual ~IConstrainedMeshUVSolver() {}
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// Add or update a weighted positional constraint associated with VtxId
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// @param bPostFix if true, this constraint will be explicitly applied after the solve
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virtual void AddConstraint(const int32 VtxId, const double Weight, const FVector2d& Position, const bool bPostFix) = 0;
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// Update or Create a constraint position associated with @param VtxId
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// @return true if a constraint weight is associated with @param VtxId
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virtual bool UpdateConstraintPosition(const int32 VtxId, const FVector2d& Position, const bool bPostFix) = 0;
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// Update or Create a constraint weight associated with @param VtxId
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// @return true if a constraint position is associated with @param VtxId
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virtual bool UpdateConstraintWeight(const int32 VtxId, const double Weight) = 0;
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// Clear all constraints (Positions and Weights)
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virtual void ClearConstraints() = 0;
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// Test if a non-zero weighted constraint is associated with VtxId
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virtual bool IsConstrained(const int32 VtxId) const = 0;
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// Returns the vertex locations of the deformed mesh.
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// Note the array may have empty elements as the index matches the Mesh based VtxId. PositionBuffer[VtxId] = Pos.
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virtual bool SolveUVs(const FDynamicMesh3* DynamicMesh, TArray<FVector2d>& UVBuffer) = 0;
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};
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}
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}
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