From 852f317611997fc3a457c5f1c376007314b81b49 Mon Sep 17 00:00:00 2001
From: jebbs <qjebbs@gmail.com>
Date: Fri, 29 May 2026 09:44:47 +0800
Subject: [PATCH] Shader: Fix ViewportIndex reservation key for vtg-as-compute

---
 src/Ryujinx.Graphics.Shader/Translation/ResourceReservations.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Ryujinx.Graphics.Shader/Translation/ResourceReservations.cs b/src/Ryujinx.Graphics.Shader/Translation/ResourceReservations.cs
index c89c4d0b6..b069f8216 100644
--- a/src/Ryujinx.Graphics.Shader/Translation/ResourceReservations.cs
+++ b/src/Ryujinx.Graphics.Shader/Translation/ResourceReservations.cs
@@ -120,7 +120,7 @@ namespace Ryujinx.Graphics.Shader.Translation
 
             if (vacUsage.UsesViewportIndex && gpuAccessor.QueryHostSupportsViewportIndexVertexTessellation())
             {
-                _offsets.Add(new IoDefinition(storageKind, IoVariable.VertexIndex), offset++);
+                _offsets.Add(new IoDefinition(storageKind, IoVariable.ViewportIndex), offset++);
             }
 
             if (vacUsage.UsesViewportMask && gpuAccessor.QueryHostSupportsViewportMask())