From 731701a2d256efba969cdbaf8712a28aa1a10aad Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Sun, 19 Aug 2018 00:14:34 -0500
Subject: Shaders: Implemented the gl_FrontFacing input attribute (attr 63).

---
 src/video_core/engines/shader_bytecode.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/video_core/engines')

diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index b038a9d92..7e0e4858a 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -79,6 +79,9 @@ union Attribute {
         // shader, and a tuple of (TessCoord.x, TessCoord.y, TessCoord.z, ~) when inside a Tess Eval
         // shader.
         TessCoordInstanceIDVertexID = 47,
+        // This attribute contains a tuple of (Unk, Unk, Unk, gl_FrontFacing) when inside a fragment
+        // shader. It is unknown what the other values contain.
+        FrontFacing = 63,
     };
 
     union {
-- 
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