idk bro

packages/game/JSExport/GameInterface.cs

@@ -28,16 +28,18 @@ namespace BlitzKit.Game.JSExport;
 public partial class GameInterface
 {
   private readonly BlitzFileProvider provider;
-
   public HashSet<string> files;
+  public int textureChunks;
 
-  public GameInterface(string directory, string map, string temp)
+  public GameInterface(string directory, string map, string temp, int textureChunks)
   {
     provider = new(directory, map, temp);
     files = [.. provider.Files.Keys];
+
+    this.textureChunks = textureChunks;
   }
 
-  readonly Dictionary<string, string> texturePaths = new();
+  readonly Dictionary<string, (int, string)> texturePaths = [];
   readonly string textureCache = "../../temp/textures.json";
 
   public void DiscoverTextures(string[] tankTags)
@@ -47,7 +49,7 @@ public partial class GameInterface
       Console.WriteLine("Found textures cache");
 
       var content = File.ReadAllText(textureCache);
-      var cached = JsonSerializer.Deserialize<Dictionary<string, string>>(content);
+      var cached = JsonSerializer.Deserialize<Dictionary<string, (int, string)>>(content);
 
       foreach (var (key, value) in cached)
       {
@@ -110,9 +112,10 @@ public partial class GameInterface
                   if (MonoGltf.knownChannels.TryGetValue(parameterTexture.Key, out var channel))
                   {
                     var path = parameterTexture.Value.GetPathName();
+                    var modulus = MonoGltf.TextureModulus(path, textureChunks);
                     var name = Path.GetFileNameWithoutExtension(path);
 
-                    texturePaths[name] = path;
+                    texturePaths[name] = (modulus, path);
                   }
                 }
               }
@@ -132,11 +135,12 @@ public partial class GameInterface
     Console.WriteLine("Saved textures cache");
   }
 
-  public List<string> Textures => [.. texturePaths.Keys];
+  public List<(int, string)> Textures =>
+    [.. texturePaths.Select(texture => (texture.Value.Item1, texture.Key))];
 
   public byte[] Texture(string name)
   {
-    var path = texturePaths[name];
+    var (_, path) = texturePaths[name];
     var texture = provider.LoadPackageObject<UTexture2D>(path);
     var isRMAO = name.EndsWith("_RMAO");
     var postProcess = isRMAO ? ImagePostProcess.RMAO : ImagePostProcess.None;
@@ -257,7 +261,7 @@ public partial class GameInterface
     // var meshes = CollectMeshes(meshSettings);
     // var gltf = new MonoGltf(meshes);
 
-    var gltf = new MonoGltf(meshSettings);
+    var gltf = new MonoGltf(meshSettings, textureChunks);
 
     return gltf.Write($"{tag}/{part}");
   }

packages/game/Models/BlitzFileProvider.cs

@@ -1,4 +1,3 @@
-using System.Runtime.InteropServices;
 using System.Text.RegularExpressions;
 using CUE4Parse_Conversion.Textures;
 using CUE4Parse.Compression;

packages/game/Models/MonoGltf.cs

@@ -1,4 +1,6 @@
 using System.Numerics;
+using System.Security.Cryptography;
+using System.Text;
 using CUE4Parse_Conversion;
 using CUE4Parse_Conversion.Materials;
 using CUE4Parse_Conversion.Meshes;
@@ -44,9 +46,12 @@ public class MonoGltf
   static readonly byte[] stubBytes = File.ReadAllBytes("../game/stub/small.png");
   static readonly float scaleCorrection = 0.01f;
 
-  public MonoGltf(FStructFallback settings)
+  readonly int textureChunks;
+
+  public MonoGltf(FStructFallback settings, int textureChunks)
   {
     var root = new NodeBuilder("root");
+    this.textureChunks = textureChunks;
 
     Traverse(settings, root);
     scene.AddNode(root);
@@ -173,9 +178,7 @@ public class MonoGltf
       {
         if (knownChannels.TryGetValue(parameterTexture.Key, out var channels))
         {
-          var texture = parameterTexture.Value;
-          var name = Path.GetFileNameWithoutExtension(texture.GetPathName());
-          var path = $"../../../textures/{name}.webp";
+          var path = TexturePath(parameterTexture.Value.GetPathName(), textureChunks);
 
           var lastIndex = stubBytes.Length - 1;
           stubBytes[lastIndex] = (byte)(++stubBytes[lastIndex] % 255);
@@ -214,6 +217,25 @@ public class MonoGltf
     return meshBuilder;
   }
 
+  public static int TextureModulus(string path, int textureChunks)
+  {
+    var name = Path.GetFileNameWithoutExtension(path);
+    var bytes = Encoding.UTF8.GetBytes(name);
+    var hash = SHA256.HashData(bytes);
+    var value = BitConverter.ToUInt32(hash, 0);
+    var modulus = value % textureChunks;
+
+    return (int)modulus;
+  }
+
+  public static string TexturePath(string path, int textureChunks)
+  {
+    var modulus = TextureModulus(path, textureChunks);
+    var name = Path.GetFileNameWithoutExtension(path);
+
+    return $"../../../textures-{modulus}/{name}.webp";
+  }
+
   public byte[] Write(string name)
   {
     var model = scene.ToGltf2();