From 101ebe3ac38457b71a7b21c4f8ca2b7c1d9e797a Mon Sep 17 00:00:00 2001
From: Stenzek <stenzek@gmail.com>
Date: Sun, 24 Mar 2024 20:48:04 +1000
Subject: [PATCH] PostProcessing/FX: Fix GLSL compile error with discard

---
 src/util/postprocessing_shader_fx.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/util/postprocessing_shader_fx.cpp b/src/util/postprocessing_shader_fx.cpp
index 9d5b6f81b..9569a1ae0 100644
--- a/src/util/postprocessing_shader_fx.cpp
+++ b/src/util/postprocessing_shader_fx.cpp
@@ -1170,7 +1170,8 @@ bool PostProcessing::ReShadeFXShader::CompilePipeline(GPUTexture::Format format,
     if (needs_main_defn)
     {
       // dFdx/dFdy are not defined in the vertex shader.
-      const char* defns = (stage == GPUShaderStage::Vertex) ? "#define dFdx(x) x\n#define dFdy(x) x\n" : "";
+      const char* defns =
+        (stage == GPUShaderStage::Vertex) ? "#define dFdx(x) x\n#define dFdy(x) x\n#define discard\n" : "";
       const char* precision = (api == RenderAPI::OpenGLES) ?
                                 "precision highp float;\nprecision highp int;\nprecision highp sampler2D;\n" :
                                 "";