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#rb none #rnx #jira none #preflight 60c52c5db9446100014da02d [CL 16653115 by Ryan Schmidt in ue5-main branch]
52 lines
1.1 KiB
C++
52 lines
1.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "MathUtil.h"
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#include "VectorTypes.h"
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#include "GeometryTypes.h"
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#include "DynamicMesh/MeshNormals.h"
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#include "Async/ParallelFor.h"
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namespace UE
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{
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namespace Geometry
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{
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class FDisplaceMesh
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{
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public:
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inline static void DisplaceMeshWithVertexWeights(FDynamicMesh3& Mesh,
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const FMeshNormals& Normals,
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const TArray<float>& VertexWeights,
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float Intensity)
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{
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check(VertexWeights.Num() >= Mesh.MaxVertexID());
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check(Normals.GetNormals().Num() >= Mesh.MaxVertexID());
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int NumVertices = Mesh.MaxVertexID();
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ParallelFor(NumVertices, [&Mesh, &VertexWeights, &Normals, Intensity](int32 VertexID)
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{
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if (!Mesh.IsVertex(VertexID))
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{
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return;
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}
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float Offset = VertexWeights[VertexID];
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FVector3d NewPosition = Mesh.GetVertexRef(VertexID) + (Offset * Intensity * Normals[VertexID]);
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Mesh.SetVertex_NoTimeStampUpdate(VertexID, NewPosition);
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});
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Mesh.IncrementTimeStamps(1, true, false);
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}
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// TODO: Refactor DisplaceMeshTool to use this class
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};
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} // end namespace UE::Geometry
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} // end namespace UE
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