54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "MeshProcessingNodes/MeshRepackUVsNode.h"
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#include "Parameterization/MeshUVPacking.h"
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#include UE_INLINE_GENERATED_CPP_BY_NAME(MeshRepackUVsNode)
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using namespace UE::Geometry;
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using namespace UE::GeometryFlow;
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void FMeshRepackUVsNode::RepackUVsForMesh(FDynamicMesh3& EditMesh, const FMeshRepackUVsSettings& Settings)
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{
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if ( !(EditMesh.HasAttributes() && EditMesh.Attributes()->GetUVLayer(Settings.UVLayer)) )
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{
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return;
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}
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if (EditMesh.TriangleCount() == 0)
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{
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return;
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}
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FDynamicMeshUVOverlay* UVLayer = EditMesh.Attributes()->GetUVLayer(Settings.UVLayer);
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UVLayer->SplitBowties();
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FDynamicMeshUVPacker Packer(UVLayer);
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Packer.TextureResolution = Settings.TextureResolution;
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Packer.GutterSize = Settings.GutterSize;
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Packer.bAllowFlips = Settings.bAllowFlips;
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bool bOK = Packer.StandardPack();
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if (!ensure(bOK)) { return; }
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if (Settings.UVScale != FVector2f::One() || Settings.UVTranslation != FVector2f::Zero())
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{
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for (int ElementID : UVLayer->ElementIndicesItr())
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{
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FVector2f UV = UVLayer->GetElement(ElementID);
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UV.X *= Settings.UVScale.X;
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UV.Y *= Settings.UVScale.Y;
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UV += Settings.UVTranslation;
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UVLayer->SetElement(ElementID, UV);
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}
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}
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}
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