From 56738e5893ed7c4dc108996590475c52726623e3 Mon Sep 17 00:00:00 2001
From: Skyth <19259897+blueskythlikesclouds@users.noreply.github.com>
Date: Thu, 3 Apr 2025 23:00:15 +0300
Subject: [PATCH] Fix half pixel getting applied twice to reverse Z vertex
 shaders.

---
 XenosRecomp/shader_recompiler.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/XenosRecomp/shader_recompiler.cpp b/XenosRecomp/shader_recompiler.cpp
index c73483c..bb5e82c 100644
--- a/XenosRecomp/shader_recompiler.cpp
+++ b/XenosRecomp/shader_recompiler.cpp
@@ -1784,7 +1784,8 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
                 }
                 else
                 {
-                    out += "\toPos.xy += g_HalfPixelOffset * oPos.w;\n";
+                    if (!hasMtxProjection)
+                        out += "\toPos.xy += g_HalfPixelOffset * oPos.w;\n";
                 }
 
                 if (simpleControlFlow)
@@ -1824,5 +1825,8 @@ void ShaderRecompiler::recompile(const uint8_t* shaderData, const std::string_vi
     if (hasMtxProjection)
         out += "\t}\n";
 
+    if (!isPixelShader && hasMtxProjection)
+        out += "\toPos.xy += g_HalfPixelOffset * oPos.w;\n";
+
     out += "}";
 }