diff --git a/Assets/Scripts/Features/OIT/SortTriangles/SortTrianglesOIT.cs b/Assets/Scripts/Features/OIT/SortTriangles/SortTrianglesOIT.cs
index f802daf..2c0d2e2 100644
--- a/Assets/Scripts/Features/OIT/SortTriangles/SortTrianglesOIT.cs
+++ b/Assets/Scripts/Features/OIT/SortTriangles/SortTrianglesOIT.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.Runtime.InteropServices;
 using UnityEngine;
 using UnityEngine.Rendering;
@@ -27,6 +28,8 @@ public class SortTrianglesOIT : MonoBehaviour
     private int indexStart;
     [SerializeField, HideInInspector]
     private uint meshIndicesCnt;
+    [SerializeField, HideInInspector]
+    private List<SubMeshDescriptor> subMeshDescriptors = new();
 
     private static readonly Vector3[] viewDirections =
         {
@@ -67,7 +70,7 @@ public class SortTrianglesOIT : MonoBehaviour
             return;
         }
 #if UNITY_EDITOR
-        if(Time.frameCount % 3 != 0
+        if (Time.frameCount % 3 != 0
             && Application.isPlaying
             )
         {
@@ -96,13 +99,38 @@ public class SortTrianglesOIT : MonoBehaviour
 
         var indices = sortedIndes[index].Indices;
 
-        //mesh.SetIndexBufferParams((int)meshIndicesCnt, mesh.indexFormat);
-        //mesh.SetIndexBufferData(indices, 0, indexStart, indices.Length,
-        //    MeshUpdateFlags.DontValidateIndices |
-        //    MeshUpdateFlags.DontResetBoneBounds |
-        //    MeshUpdateFlags.DontNotifyMeshUsers |
-        //    MeshUpdateFlags.DontRecalculateBounds
-        //    );
+        //mesh.SetIndexBufferParams((int)meshIndicesCnt, IndexFormat.UInt32);
+        //var submesh0Indices = mesh.GetIndices(0);
+        //var allIndices = new int[meshIndicesCnt];
+        //Buffer.BlockCopy(submesh0Indices, 0, allIndices, 0, submesh0Indices.Length);
+        //Buffer.BlockCopy(indices, 0, allIndices, submesh0Indices.Length, indices.Length);
+
+        //mesh.SetIndexBufferData(allIndices, 0, 0, allIndices.Length,
+        //  MeshUpdateFlags.DontValidateIndices |
+        //  MeshUpdateFlags.DontResetBoneBounds |
+        //  MeshUpdateFlags.DontNotifyMeshUsers |
+        //  MeshUpdateFlags.DontRecalculateBounds
+        //  );
+
+        ////mesh.SetIndexBufferData(indices, 0, indexStart, indices.Length,
+        ////    MeshUpdateFlags.DontValidateIndices |
+        ////    MeshUpdateFlags.DontResetBoneBounds |
+        ////    MeshUpdateFlags.DontNotifyMeshUsers |
+        ////    MeshUpdateFlags.DontRecalculateBounds
+        ////    );
+        //mesh.subMeshCount = subMeshDescriptors.Count;
+        //for (int i = 0; i < subMeshDescriptors.Count; i++)
+        //{
+        //    mesh.SetSubMesh(i, subMeshDescriptors[i],
+        //       MeshUpdateFlags.DontValidateIndices |
+        //       MeshUpdateFlags.DontResetBoneBounds |
+        //       MeshUpdateFlags.DontNotifyMeshUsers |
+        //       MeshUpdateFlags.DontRecalculateBounds
+        //       );
+        //    mesh.bounds.Encapsulate(subMeshDescriptors[i].bounds);
+        //}
+
+
         mesh.SetIndices(indices, MeshTopology.Triangles, SubMeshIndex, false);
         lastIndex = index;
     }
@@ -135,6 +163,11 @@ public class SortTrianglesOIT : MonoBehaviour
         public int CompareTo(PrimitiveDepth other)
         {
             var i = depth - other.depth;
+            if(!SystemInfo.usesReversedZBuffer)
+            {
+                i *= -1;
+            }
+
             if (i > 0)
             {
                 return 1;
@@ -202,8 +235,10 @@ public class SortTrianglesOIT : MonoBehaviour
 
         Bounds bounds = GetComponent<Renderer>().bounds;
         float radius = bounds.extents.magnitude;
+        subMeshDescriptors.Clear();
         for (int i = 0; i < mesh.subMeshCount; i++)
         {
+            subMeshDescriptors.Add(mesh.GetSubMesh(i));
             meshIndicesCnt += mesh.GetIndexCount(i);
         }
         if (SubMeshIndex >= mesh.subMeshCount)