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#jira UE-122078 #rb Andrew.Davidson, Colin.McGinley #preflight standard build #ROBOMERGE-AUTHOR: fred.kimberley #ROBOMERGE-SOURCE: CL 18817999 in //UE5/Release-5.0/... via CL 18818012 via CL 18822871 #ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v910-18824042) [CL 18824721 by fred kimberley in ue5-main branch]
100 lines
3.3 KiB
C++
100 lines
3.3 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "ProxyLODkDOPInterface.h"
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#include "ProxyLODMeshTypes.h"
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#include "ProxyLODThreadedWrappers.h"
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#include "StaticMeshAttributes.h"
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// Utils for building a kdop tree from different mesh types.
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void ProxyLOD::BuildkDOPTree(const FMeshDescriptionArrayAdapter& SrcGeometry, ProxyLOD::FkDOPTree& kDOPTree)
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{
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TRACE_CPUPROFILER_EVENT_SCOPE(ProxyLOD::BuildkDOPTree)
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const auto NumSrcPoly = SrcGeometry.polygonCount();
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TArray<FkDOPBuildTriangle> BuildTriangleArray;
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// pre-allocated
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ResizeArray(BuildTriangleArray, NumSrcPoly);
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ProxyLOD::Parallel_For(ProxyLOD::FUIntRange(0, NumSrcPoly),
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[&BuildTriangleArray, &SrcGeometry](const ProxyLOD::FUIntRange& Range)
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{
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FkDOPBuildTriangle* BuildTriangles = BuildTriangleArray.GetData();
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for (uint32 r = Range.begin(), R = Range.end(); r < R; ++r)
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{
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const auto& Poly = SrcGeometry.GetRawPoly(r);
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BuildTriangles[r] = FkDOPBuildTriangle(r, FVector(Poly.VertexPositions[0]), FVector(Poly.VertexPositions[1]), FVector(Poly.VertexPositions[2]));
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}
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});
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// Add everything to the tree.
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kDOPTree.Build(BuildTriangleArray);
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}
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void ProxyLOD::BuildkDOPTree(const FMeshDescription& MeshDescription, FkDOPTree& kDOPTree)
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{
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TRACE_CPUPROFILER_EVENT_SCOPE(ProxyLOD::BuildkDOPTree)
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TArrayView<const FVector3f> VertexPositions = MeshDescription.GetVertexPositions().GetRawArray();
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uint32 NumSrcPoly = MeshDescription.Triangles().Num();
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TArray<FkDOPBuildTriangle> BuildTriangleArray;
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// pre-allocated
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ResizeArray(BuildTriangleArray, NumSrcPoly);
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ProxyLOD::Parallel_For(ProxyLOD::FUIntRange(0, NumSrcPoly),
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[&BuildTriangleArray, &MeshDescription, &VertexPositions](const ProxyLOD::FUIntRange& Range)
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{
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FkDOPBuildTriangle* BuildTriangles = BuildTriangleArray.GetData();
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for (uint32 r = Range.begin(), R = Range.end(); r < R; ++r)
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{
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FVector Pos[3] = { (FVector)VertexPositions[MeshDescription.GetVertexInstanceVertex(FVertexInstanceID(3 * r))],
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(FVector)VertexPositions[MeshDescription.GetVertexInstanceVertex(FVertexInstanceID(3 * r + 1))],
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(FVector)VertexPositions[MeshDescription.GetVertexInstanceVertex(FVertexInstanceID(3 * r + 2))] };
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BuildTriangles[r] = FkDOPBuildTriangle(r, Pos[0], Pos[1], Pos[2]);
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}
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});
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// Add everything to the tree.
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kDOPTree.Build(BuildTriangleArray);
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}
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void ProxyLOD::BuildkDOPTree(const FVertexDataMesh& SrcVertexDataMesh, ProxyLOD::FkDOPTree& kDOPTree)
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{
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TRACE_CPUPROFILER_EVENT_SCOPE(ProxyLOD::BuildkDOPTree)
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const auto NumSrcPoly = SrcVertexDataMesh.Indices.Num() / 3;
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TArray<FkDOPBuildTriangle> BuildTriangleArray;
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// pre-allocated
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ResizeArray(BuildTriangleArray, NumSrcPoly);
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ProxyLOD::Parallel_For(ProxyLOD::FUIntRange(0, NumSrcPoly),
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[&BuildTriangleArray, &SrcVertexDataMesh](const ProxyLOD::FUIntRange& Range)
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{
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FkDOPBuildTriangle* BuildTriangles = BuildTriangleArray.GetData();
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const uint32* Idxs = SrcVertexDataMesh.Indices.GetData();
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const FVector3f* Positions = SrcVertexDataMesh.Points.GetData();
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for (uint32 r = Range.begin(), R = Range.end(); r < R; ++r)
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{
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FVector Pos[3] = { (FVector)Positions[Idxs[3 * r]], (FVector)Positions[Idxs[3 * r + 1]], (FVector)Positions[Idxs[3 * r + 2]] };
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BuildTriangles[r] = FkDOPBuildTriangle(r, Pos[0], Pos[1], Pos[2]);
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}
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});
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// Add everything to the tree.
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kDOPTree.Build(BuildTriangleArray);
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} |