vibecoded inspector

NResUI/Rendering/Viewport/Msh/MshRestPoseBuilder.cs

@@ -9,6 +9,10 @@ namespace NResUI.Rendering.Viewport.Msh;
 
 public static class MshRestPoseBuilder
 {
+    /// <summary>
+    /// Собирает bind/rest pose для pieces из fallback keyframes 0x08.
+    /// Циклы и битые parent-ссылки не должны ломать viewport, поэтому такие узлы остаются с identity transform.
+    /// </summary>
     public static IReadOnlyList<MshPieceRestPose> BuildRestPose(Msh0x01.Msh0x01Component nodesComponent, List<Msh0x08.AnimationDescriptor> animationDescriptors)
     {
         var nodeList = nodesComponent.Nodes;
@@ -54,15 +58,12 @@ public static class MshRestPoseBuilder
         else
         {
             localTransform = Matrix4x4.Identity;
-
-            Console.WriteLine($"Node {nodeIndex} has no fallback");
         }
 
         if (parentIndex == -1)
         {
+            // Root nodes describe object placement in game space; the viewer keeps the model centered.
             localTransform.Translation = Vector3.Zero;
-
-            Console.WriteLine($"Node {nodeIndex} has no parent");
         }
         
         var meshSpaceTransform = localTransform;
@@ -86,15 +87,7 @@ public static class MshRestPoseBuilder
 
     private static int GetParentIndex(Msh0x01.Node node)
     {
-        try
-        {
-            return Convert.ToInt32(node.ParentIndexOrLink);
-        }
-        catch
-        {
-            var rawParent = Convert.ToUInt16(node.ParentIndexOrLink);
-            return rawParent == ushort.MaxValue ? -1 : rawParent;
-        }
+        return node.ParentIndexOrLink == ushort.MaxValue ? -1 : node.ParentIndexOrLink;
     }
 
     private static int GetFallbackKeyframeIndex(Msh0x01.Node node)

NResUI/Rendering/Viewport/Msh/MshViewportLoadResult.cs

@@ -1,31 +0,0 @@
-namespace NResUI.Rendering.Viewport.Msh;
-
-public sealed class MshViewportLoadResult
-{
-    public bool IsSuccess { get; }
-    public string? Error { get; }
-    public string? SourcePath { get; }
-    public IReadOnlyList<ViewportPiece> Pieces { get; }
-
-    private MshViewportLoadResult(
-        bool isSuccess,
-        string? error,
-        string? sourcePath,
-        IReadOnlyList<ViewportPiece> pieces)
-    {
-        IsSuccess = isSuccess;
-        Error = error;
-        SourcePath = sourcePath;
-        Pieces = pieces;
-    }
-
-    public static MshViewportLoadResult Success(string sourcePath, IReadOnlyList<ViewportPiece> pieces)
-    {
-        return new MshViewportLoadResult(true, null, sourcePath, pieces);
-    }
-
-    public static MshViewportLoadResult Failure(string error, string? sourcePath = null)
-    {
-        return new MshViewportLoadResult(false, error, sourcePath, Array.Empty<ViewportPiece>());
-    }
-}

NResUI/Rendering/Viewport/Msh/MshViewportLoader.cs

@@ -1,294 +0,0 @@
-using System.Numerics;
-using MshLib;
-using NResLib;
-using NResUI.Abstractions;
-using NResUI.Rendering.Viewport.Meshes;
-using Silk.NET.OpenGL;
-
-namespace NResUI.Rendering.Viewport.Msh;
-
-public static class MshViewportLoader
-{
-    private const int DefaultModelState = 0;
-    private const int DefaultLod = 0;
-
-    public static MshViewportLoadResult LoadFromFile(GL gl, string path, IConfigProvider configProvider)
-    {
-        try
-        {
-            using var fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read);
-            var parseResult = NResParser.ReadFile(fs);
-            if (parseResult.Archive == null)
-                return MshViewportLoadResult.Failure(parseResult.Error ?? "Failed to parse MSH/NRes file.", path);
-
-            var archive = parseResult.Archive;
-            var meshType = MshConverter.DetectMeshType(archive);
-            if (meshType != MshType.Model)
-            {
-                return MshViewportLoadResult.Failure(
-                    $"Only normal MSH models are supported for this viewport pass. Detected: {meshType}.",
-                    path);
-            }
-
-            fs.Seek(0, SeekOrigin.Begin);
-            var pieces = LoadModelPieces(gl, fs, archive, path, configProvider);
-            if (pieces.Count == 0)
-                return MshViewportLoadResult.Failure("MSH was parsed, but no renderable geometry pieces were found.", path);
-
-            return MshViewportLoadResult.Success(path, pieces);
-        }
-        catch (Exception ex)
-        {
-            return MshViewportLoadResult.Failure(ex.Message, path);
-        }
-    }
-
-    private static List<ViewportPiece> LoadModelPieces(
-        GL gl, FileStream fs, NResArchive archive, string path, IConfigProvider configProvider
-    )
-    {
-        var nodes = Msh0x01.ReadComponent(fs, archive);
-        var geometry = Msh0x02.ReadComponent(fs, archive);
-        var positions = Msh0x03.ReadComponent(fs, archive);
-        var uvs = TryReadUvs(fs, archive);
-        var indices = Msh0x06.ReadComponent(fs, archive);
-        var batches = Msh0x0D.ReadComponent(fs, archive);
-        var animationDescriptors = Msh0x08.ReadComponent(fs, archive);
-        var restPoses = MshRestPoseBuilder.BuildRestPose(nodes, animationDescriptors);
-        var mshToViewportTransform = Matrix4x4.CreateRotationX(-MathF.PI * 0.5f);
-        var names = TryReadNames(fs, archive);
-        var materialLibrary = WeaMaterialLibrary.TryLoadForMsh(gl, path, configProvider);
-
-        var pieces = new List<ViewportPiece>();
-
-        for (var nodeIndex = 0; nodeIndex < nodes.Nodes.Count; nodeIndex++)
-        {
-            var node = nodes.Nodes[nodeIndex];
-            var restPose = restPoses[nodeIndex];
-            var slotIndex = node.ResolveSlotIndex(DefaultModelState, DefaultLod);
-            if (slotIndex == ushort.MaxValue)
-                continue;
-
-            if (slotIndex >= geometry.Slots.Count)
-                continue;
-
-            var slot = geometry.Slots[slotIndex];
-            if (!slot.HasBatches)
-                continue;
-
-            var meshBuildResult = BuildPieceMeshes(gl, nodeIndex, slot, positions, uvs, indices, batches, materialLibrary);
-            if (meshBuildResult == null)
-                continue;
-
-            var name = ResolvePieceName(names, nodeIndex);
-            pieces.Add(new ViewportPiece(
-                id: nodeIndex,
-                name: name,
-                meshes: meshBuildResult.Meshes,
-                localTransform: restPose.MeshSpaceTransform * mshToViewportTransform,
-                boundsMin: meshBuildResult.BoundsMin,
-                boundsMax: meshBuildResult.BoundsMax,
-                debugInfo: new ViewportPieceDebugInfo
-                {
-                    SourceKind = "MSH 0x01 piece",
-                    SourcePieceIndex = nodeIndex,
-                    SourceParentIndex = restPose.ParentIndex,
-                    GeometrySlotIndex = slotIndex,
-                    Msh01Flags = (uint)node.Flags,
-                    BatchCount = meshBuildResult.BatchCount,
-                    TriangleCount = meshBuildResult.TriangleCount,
-                    FallbackKeyframeIndex = restPose.FallbackKeyframeIndex,
-                    HasRestPose = restPose.HasFallbackPose
-                }));
-        }
-
-        return pieces;
-    }
-
-    private static PieceMeshBuildResult? BuildPieceMeshes(
-        GL gl,
-        int nodeIndex,
-        Msh0x02.GeometrySlot slot,
-        IReadOnlyList<Common.Vector3> positions,
-        IReadOnlyList<Msh05Uv> uvs,
-        IReadOnlyList<ushort> indices,
-        IReadOnlyList<Msh0x0D.Batch> batches,
-        WeaMaterialLibrary materialLibrary)
-    {
-        var meshes = new List<GpuMesh>();
-        var debugColor = PickDebugColor(nodeIndex);
-
-        var batchCount = 0;
-        var triangleCount = 0;
-
-        var boundsMin = new Vector3(float.PositiveInfinity, float.PositiveInfinity, float.PositiveInfinity);
-        var boundsMax = new Vector3(float.NegativeInfinity, float.NegativeInfinity, float.NegativeInfinity);
-
-        for (var batchIndex = slot.BatchStart0x0D; batchIndex < slot.BatchEndExclusive0x0D; batchIndex++)
-        {
-            if (batchIndex < 0 || batchIndex >= batches.Count)
-                continue;
-
-            var batch = batches[batchIndex];
-            if (batch.IndexStart0x06 + batch.IndexCount0x06 > indices.Count)
-                continue;
-
-            var vertices = new List<float>();
-            var outIndices = new List<uint>();
-            var batchTriangleCount = 0;
-
-            var material = materialLibrary.FindMaterial(batch.MaterialIndexLo) ?? ViewportMaterial.Untextured;
-            var vertexColor = material.HasTexture ? Vector3.One : debugColor;
-
-            for (var i = 0; i + 2 < batch.IndexCount0x06; i += 3)
-            {
-                var indexBase = (int)batch.IndexStart0x06 + i;
-                var vertexIndex0 = checked((int)batch.BaseVertex0x03 + indices[indexBase + 0]);
-                var vertexIndex1 = checked((int)batch.BaseVertex0x03 + indices[indexBase + 1]);
-                var vertexIndex2 = checked((int)batch.BaseVertex0x03 + indices[indexBase + 2]);
-
-                if (!IsValidTriangle(positions.Count, vertexIndex0, vertexIndex1, vertexIndex2))
-                    continue;
-
-                var p0 = ToNumericsVector3(positions[vertexIndex0]);
-                var p1 = ToNumericsVector3(positions[vertexIndex1]);
-                var p2 = ToNumericsVector3(positions[vertexIndex2]);
-
-                var normal = Vector3.Cross(p1 - p0, p2 - p0);
-                if (normal.LengthSquared() < 1e-8f)
-                    normal = Vector3.UnitY;
-                else
-                    normal = Vector3.Normalize(normal);
-                
-                AddTriangleVertex(p0, vertexColor, normal, GetUv(uvs, vertexIndex0), vertices, outIndices, ref boundsMin, ref boundsMax);
-                AddTriangleVertex(p1, vertexColor, normal, GetUv(uvs, vertexIndex1), vertices, outIndices, ref boundsMin, ref boundsMax);
-                AddTriangleVertex(p2, vertexColor, normal, GetUv(uvs, vertexIndex2), vertices, outIndices, ref boundsMin, ref boundsMax);
-                batchTriangleCount++;
-            }
-
-            if (batchTriangleCount == 0)
-                continue;
-
-            batchCount++;
-            triangleCount += batchTriangleCount;
-            meshes.Add(PrimitiveMeshes.CreateColoredIndexedMesh(gl, vertices, outIndices, PrimitiveType.Triangles, material));
-        }
-
-        if (triangleCount == 0 || meshes.Count == 0)
-            return null;
-
-        return new PieceMeshBuildResult(meshes, boundsMin, boundsMax, batchCount, triangleCount);
-    }
-
-    private static Vector2 GetUv(IReadOnlyList<Msh05Uv> uvs, int vertexIndex)
-    {
-        if (vertexIndex < 0 || vertexIndex >= uvs.Count)
-            return Vector2.Zero;
-
-        var uv = uvs[vertexIndex];
-        return new Vector2(uv.U / 1024.0f, uv.V / 1024.0f);
-    }
-
-    private static Vector3 ToNumericsVector3(Common.Vector3 position)
-    {
-        return new Vector3(position.X, position.Y, position.Z);
-    }
-
-    private static void AddTriangleVertex(
-        Vector3 position,
-        Vector3 color,
-        Vector3 normal,
-        Vector2 uv,
-        List<float> vertices,
-        List<uint> indices,
-        ref Vector3 boundsMin,
-        ref Vector3 boundsMax)
-    {
-        var vertexIndex = (uint)(vertices.Count / PrimitiveMeshes.FloatsPerVertex);
-
-        vertices.Add(position.X);
-        vertices.Add(position.Y);
-        vertices.Add(position.Z);
-        vertices.Add(color.X);
-        vertices.Add(color.Y);
-        vertices.Add(color.Z);
-        vertices.Add(normal.X);
-        vertices.Add(normal.Y);
-        vertices.Add(normal.Z);
-        vertices.Add(uv.X);
-        vertices.Add(uv.Y);
-
-        indices.Add(vertexIndex);
-
-        boundsMin = Vector3.Min(boundsMin, position);
-        boundsMax = Vector3.Max(boundsMax, position);
-    }
-
-    private static bool IsValidTriangle(int vertexCount, int vertexIndex0, int vertexIndex1, int vertexIndex2)
-    {
-        return IsValidVertexIndex(vertexCount, vertexIndex0) &&
-               IsValidVertexIndex(vertexCount, vertexIndex1) &&
-               IsValidVertexIndex(vertexCount, vertexIndex2);
-    }
-
-    private static bool IsValidVertexIndex(int vertexCount, int vertexIndex)
-    {
-        return vertexIndex >= 0 && vertexIndex < vertexCount;
-    }
-
-    private static List<string> TryReadNames(FileStream fs, NResArchive archive)
-    {
-        try
-        {
-            return Msh0x0A.ReadComponent(fs, archive);
-        }
-        catch
-        {
-            return new List<string>();
-        }
-    }
-
-    private static List<Msh05Uv> TryReadUvs(FileStream fs, NResArchive archive)
-    {
-        try
-        {
-            return Msh0x05.ReadComponent(fs, archive);
-        }
-        catch
-        {
-            return new List<Msh05Uv>();
-        }
-    }
-
-    private static string ResolvePieceName(IReadOnlyList<string> names, int nodeIndex)
-    {
-        if (nodeIndex >= 0 && nodeIndex < names.Count && !string.IsNullOrWhiteSpace(names[nodeIndex]))
-            return $"{nodeIndex}: {names[nodeIndex]}";
-
-        return $"{nodeIndex}: piece_{nodeIndex:D3}";
-    }
-
-    private static Vector3 PickDebugColor(int index)
-    {
-        ReadOnlySpan<Vector3> palette =
-        [
-            new Vector3(0.90f, 0.36f, 0.30f),
-            new Vector3(0.30f, 0.68f, 0.95f),
-            new Vector3(0.42f, 0.82f, 0.42f),
-            new Vector3(0.95f, 0.78f, 0.32f),
-            new Vector3(0.78f, 0.48f, 0.95f),
-            new Vector3(0.36f, 0.86f, 0.78f),
-            new Vector3(0.95f, 0.55f, 0.78f),
-            new Vector3(0.72f, 0.72f, 0.72f),
-        ];
-
-        return palette[index % palette.Length];
-    }
-
-    private sealed record PieceMeshBuildResult(
-        IReadOnlyList<GpuMesh> Meshes,
-        Vector3 BoundsMin,
-        Vector3 BoundsMax,
-        int BatchCount,
-        int TriangleCount);
-}

NResUI/Rendering/Viewport/Msh/WeaMaterialLibrary.cs

@@ -1,284 +0,0 @@
-using MaterialLib;
-using NResLib;
-using NResUI.Abstractions;
-using NResUI.Rendering.Viewport.OpenGL;
-using Silk.NET.OpenGL;
-using TexmLib;
-
-namespace NResUI.Rendering.Viewport.Msh;
-
-public sealed class WeaMaterialLibrary
-{
-    private readonly Dictionary<int, ViewportMaterial> _materialsById;
-
-    private WeaMaterialLibrary(Dictionary<int, ViewportMaterial> materialsById)
-    {
-        _materialsById = materialsById;
-    }
-
-    public static WeaMaterialLibrary Empty { get; } = new(new Dictionary<int, ViewportMaterial>());
-
-    public ViewportMaterial? FindMaterial(int id)
-    {
-        return _materialsById.TryGetValue(id, out var material)
-            ? material
-            : null;
-    }
-
-    public static WeaMaterialLibrary TryLoadForMsh(GL gl, string mshPath, IConfigProvider configProvider)
-    {
-        var weaPath = FindMatchingWeaPath(mshPath);
-        if (!File.Exists(weaPath))
-            return Empty;
-
-        var materialRefs = ParseMaterialRefs(weaPath);
-        if (materialRefs.Count == 0)
-            return Empty;
-
-        var materialLibFs = Path.Combine(configProvider.GetConfig().GameBasePath, "Material.lib");
-
-        if (!File.Exists(materialLibFs))
-        {
-            return new WeaMaterialLibrary([]);
-        }
-        
-        using var materialFs = new FileStream(materialLibFs, FileMode.Open, FileAccess.Read, FileShare.Read);
-        var parseResult = NResParser.ReadFile(materialFs);
-        if (parseResult.Archive == null)
-            return Empty;
-
-        var result = new Dictionary<int, ViewportMaterial>();
-
-        foreach (var materialRef in materialRefs)
-        {
-            var texture = TryLoadMaterialTexture(gl, materialFs, parseResult.Archive, materialRef.Name, configProvider, out var texm);
-            result[materialRef.Id] = texture != null
-                ? new ViewportMaterial(materialRef.Name, texture.Value, texm)
-                : new ViewportMaterial(materialRef.Name);
-        }
-
-        return new WeaMaterialLibrary(result);
-    }
-
-    private static string? FindMatchingWeaPath(string mshPath)
-    {
-        var directory = Path.GetDirectoryName(mshPath);
-        if (string.IsNullOrWhiteSpace(directory) || !Directory.Exists(directory))
-            return null;
-
-        var mshResourceName = GetExportedResourceNameWithoutExtension(mshPath);
-        var mshObjectStem = ExtractObjectStem(mshResourceName);
-
-        var candidates = Directory.EnumerateFiles(directory, "*.wea", SearchOption.TopDirectoryOnly)
-            .Select(path => new
-            {
-                Path = path,
-                ResourceName = GetExportedResourceNameWithoutExtension(path),
-            })
-            .Select(x => new
-            {
-                x.Path,
-                x.ResourceName,
-                ObjectStem = ExtractObjectStem(x.ResourceName),
-            })
-            .ToList();
-
-        // Best case: exact resource stem match after type prefix normalization.
-        var exact = candidates.FirstOrDefault(x => string.Equals(x.ObjectStem, mshObjectStem,
-            StringComparison.OrdinalIgnoreCase));
-
-        if (exact != null)
-            return exact.Path;
-
-        // Fallback: choose a WEA whose resource name shares the longest token prefix.
-        var best = candidates
-            .Select(x => new
-            {
-                x.Path,
-                Score = CommonPrefixTokenCount(
-                    SplitResourceTokens(mshObjectStem),
-                    SplitResourceTokens(x.ObjectStem))
-            })
-            .OrderByDescending(x => x.Score)
-            .FirstOrDefault();
-
-        return best?.Score > 0 ? best.Path : null;
-    }
-
-    private static string GetExportedResourceNameWithoutExtension(string path)
-    {
-        var name = Path.GetFileNameWithoutExtension(path);
-
-        // Exported files are usually like:
-        // 58_MESH_o_tur_ba_06
-        // 81_WEAR_o_tur_ba_02
-        //
-        // Strip numeric export prefix.
-        var firstUnderscore = name.IndexOf('_');
-        if (firstUnderscore > 0 &&
-            name[..firstUnderscore].All(char.IsDigit))
-        {
-            name = name[(firstUnderscore + 1)..];
-        }
-
-        return name;
-    }
-
-    private static string ExtractObjectStem(string resourceName)
-    {
-        // Normalize known resource kind prefixes.
-        // MESH_o_tur_ba_06 -> o_tur_ba
-        // WEAR_o_tur_ba_02 -> o_tur_ba
-        var normalized = resourceName;
-
-        foreach (var prefix in new[] { "MESH_", "WEAR_", "TEXT_", "ANIM_" })
-        {
-            if (normalized.StartsWith(prefix, StringComparison.OrdinalIgnoreCase))
-            {
-                normalized = normalized[prefix.Length..];
-                break;
-            }
-        }
-
-        var tokens = normalized.Split('_', StringSplitOptions.RemoveEmptyEntries);
-
-        return string.Join('_', tokens);
-    }
-
-    private static string[] SplitResourceTokens(string value)
-    {
-        return value.Split('_', StringSplitOptions.RemoveEmptyEntries);
-    }
-
-    private static int CommonPrefixTokenCount(string[] a, string[] b)
-    {
-        var count = Math.Min(a.Length, b.Length);
-        var result = 0;
-
-        for (var i = 0; i < count; i++)
-        {
-            if (!string.Equals(a[i], b[i], StringComparison.OrdinalIgnoreCase))
-                break;
-
-            result++;
-        }
-
-        return result;
-    }
-
-    private static IReadOnlyList<WeaMaterialRef> ParseMaterialRefs(string weaPath)
-    {
-        var lines = File.ReadAllLines(weaPath)
-            .Select(x => x.Trim())
-            .Where(x => x.Length != 0)
-            .ToList();
-
-        if (lines.Count == 0 || !int.TryParse(lines[0], out var materialCount) || materialCount <= 0)
-            return [];
-
-        var result = new List<WeaMaterialRef>();
-
-        for (var i = 0; i < materialCount && i + 1 < lines.Count; i++)
-        {
-            var line = lines[i + 1];
-            if (line.Equals("LIGHTMAPS", StringComparison.OrdinalIgnoreCase))
-                break;
-
-            var parts = line.Split((char[]?)null, 2,
-                StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
-            if (parts.Length < 2)
-                continue;
-
-            if (!int.TryParse(parts[0], out var id))
-                continue;
-
-            result.Add(new WeaMaterialRef(id, parts[1]));
-        }
-
-        return result;
-    }
-
-    private static uint? TryLoadMaterialTexture(
-        GL gl, FileStream materialFs, NResArchive materialArchive, string materialName, IConfigProvider configProvider,
-        out TexmFile? texm
-    )
-    {
-        texm = null;
-        var entry = FindMaterialEntry(materialArchive, materialName);
-        if (entry == null)
-            return null;
-
-        materialFs.Seek(entry.OffsetInFile, SeekOrigin.Begin);
-        var materialData = new byte[entry.FileLength];
-        materialFs.ReadExactly(materialData, 0, materialData.Length);
-
-        using var ms = new MemoryStream(materialData, writable: false);
-
-        var materialFile = MaterialParser.ReadFromStream(ms, materialName, entry.ElementCount, entry.Magic1);
-
-        var texture = materialFile.Stages[0].TextureName;
-
-        var textureLibFs = Path.Combine(configProvider.GetConfig().GameBasePath, "Textures.lib");
-
-        if (!File.Exists(textureLibFs))
-        {
-            return null;
-        }
-
-        using var textureFs = new FileStream(textureLibFs, FileMode.Open, FileAccess.Read, FileShare.Read);
-        var textureResult = NResParser.ReadFile(textureFs);
-        if (textureResult.Archive == null)
-            return 0;
-
-        var textureEntry = FindTextureEntry(textureResult.Archive, texture);
-        if (textureEntry is null)
-        {
-            Console.WriteLine($"Didnt find texture {texture}");
-            return 0;
-        }
-        
-        textureFs.Seek(textureEntry.OffsetInFile, SeekOrigin.Begin);
-        var textureData = new byte[textureEntry.FileLength];
-        textureFs.ReadExactly(textureData, 0, textureData.Length);
-
-        using var textureMs = new MemoryStream(textureData, writable: false);
-        
-        var texmResult = TexmParser.ReadFromStream(textureMs, entry.FileName);
-        if (texmResult.TexmFile == null)
-            return null;
-
-        texm = texmResult.TexmFile;
-        var rgba = texmResult.TexmFile.GetRgba32BytesFromMipmap(0, out var width, out var height);
-        return ViewportTextureLoader.CreateRgbaTexture(gl, rgba, width, height);
-    }
-
-    private static ListMetadataItem? FindMaterialEntry(NResArchive materialArchive, string materialName)
-    {
-        static string Normalize(string value)
-        {
-            return value.Trim().ToLowerInvariant();
-        }
-
-        var normalized = Normalize(materialName);
-
-        return materialArchive.Files.FirstOrDefault(x =>
-            string.Equals(x.FileName, materialName, StringComparison.OrdinalIgnoreCase) ||
-            Normalize(x.FileName) == normalized);
-    }
-
-    private static ListMetadataItem? FindTextureEntry(NResArchive archive, string name)
-    {
-        static string Normalize(string value)
-        {
-            return value.Trim().ToLowerInvariant();
-        }
-
-        var normalized = Normalize(name);
-
-        return archive.Files.FirstOrDefault(x =>
-            string.Equals(x.FileName, name, StringComparison.OrdinalIgnoreCase) ||
-            Normalize(x.FileName) == normalized);
-    }
-
-    private readonly record struct WeaMaterialRef(int Id, string Name);
-}

NResUI/Rendering/Viewport/ViewportPiece.cs

@@ -17,6 +17,7 @@ public sealed class ViewportPiece
     public Vector3 BoundsMax { get; }
 
     public ViewportPieceDebugInfo? DebugInfo { get; }
+    public IReadOnlyList<int> SourceBatchIndices { get; }
 
     public ViewportPiece(
         int id,
@@ -25,8 +26,9 @@ public sealed class ViewportPiece
         Matrix4x4 localTransform,
         Vector3 boundsMin,
         Vector3 boundsMax,
-        ViewportPieceDebugInfo? debugInfo = null)
-        : this(id, name, new[] { mesh }, localTransform, boundsMin, boundsMax, debugInfo)
+        ViewportPieceDebugInfo? debugInfo = null,
+        IReadOnlyList<int>? sourceBatchIndices = null)
+        : this(id, name, new[] { mesh }, localTransform, boundsMin, boundsMax, debugInfo, sourceBatchIndices)
     {
     }
 
@@ -37,7 +39,8 @@ public sealed class ViewportPiece
         Matrix4x4 localTransform,
         Vector3 boundsMin,
         Vector3 boundsMax,
-        ViewportPieceDebugInfo? debugInfo = null)
+        ViewportPieceDebugInfo? debugInfo = null,
+        IReadOnlyList<int>? sourceBatchIndices = null)
     {
         if (meshes.Count == 0)
             throw new ArgumentException("A viewport piece must contain at least one mesh.", nameof(meshes));
@@ -49,6 +52,7 @@ public sealed class ViewportPiece
         BoundsMin = boundsMin;
         BoundsMax = boundsMax;
         DebugInfo = debugInfo;
+        SourceBatchIndices = sourceBatchIndices ?? [];
     }
 
     public static ViewportPiece CreateUnitCube(int id, string name, GpuMesh mesh)