From 5d3e39208266c77a6db737638acfc6934baa331a Mon Sep 17 00:00:00 2001
From: stossy11 <stossy11@noreply.localhost>
Date: Wed, 2 Sep 2026 07:08:07 -0400
Subject: [PATCH] Fix fragment ClipDistance SPIR-V lookup

- Fixed ClipDistance being treated as VTG gl_PerVertex block, Causing the lookup of Input.Position when it's undeclared.
---
 src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Instructions.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Instructions.cs b/src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Instructions.cs
index 4d1999a47..deda98cc7 100644
--- a/src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Instructions.cs
+++ b/src/Ryujinx.Graphics.Shader/CodeGen/Spirv/Instructions.cs
@@ -1790,7 +1790,7 @@ namespace Ryujinx.Graphics.Shader.CodeGen.Spirv
                     {
                         (_, varType) = IoMap.GetSpirvBuiltIn(ioVariable);
 
-                        if (IoMap.IsPerVertexBuiltIn(ioVariable))
+                        if (context.Definitions.Stage.IsVtg() && IoMap.IsPerVertexBuiltIn(ioVariable))
                         {
                             perVertexBuiltIn = ioVariable;
                             ioVariable = IoVariable.Position;