From e4692125d33b8e2267aa5581f8f58654f1df64a8 Mon Sep 17 00:00:00 2001
From: Pavel Djundik <xPaw@users.noreply.github.com>
Date: Sun, 23 Jun 2019 00:51:41 +0300
Subject: [PATCH] Fix index buffers

---
 ValveResourceFormat/ThirdParty/MeshOptimizerIndexDecoder.cs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ValveResourceFormat/ThirdParty/MeshOptimizerIndexDecoder.cs b/ValveResourceFormat/ThirdParty/MeshOptimizerIndexDecoder.cs
index 760d9beb9..844f951ae 100644
--- a/ValveResourceFormat/ThirdParty/MeshOptimizerIndexDecoder.cs
+++ b/ValveResourceFormat/ThirdParty/MeshOptimizerIndexDecoder.cs
@@ -60,6 +60,8 @@ private static uint DecodeIndex(BinaryReader data, uint next, uint last)
 
         private static void WriteTriangle(Span<byte> destination, int offset, int indexSize, uint a, uint b, uint c)
         {
+            offset *= indexSize;
+
             if (indexSize == 2)
             {
                 BinaryPrimitives.WriteUInt16LittleEndian(destination.Slice(offset + 0), (ushort)a);