From eb58d7855580bd62675df9b0a699ee2ce819d1ba Mon Sep 17 00:00:00 2001
From: Zeno Rogue <zeno@attnam.com>
Date: Thu, 16 Sep 2021 22:14:30 +0200
Subject: [PATCH] ray:: fixed mirrors in intra::in

---
 raycaster.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/raycaster.cpp b/raycaster.cpp
index 23e3612d..fab8dfbb 100644
--- a/raycaster.cpp
+++ b/raycaster.cpp
@@ -958,7 +958,8 @@ void raygen::apply_reflect() {
     "    tangent = " + getM("uMirrorShift+walloffset+which") + " * tangent;\n"
     "    continue;\n"
     "    }\n";
-    fsh += "uniform int uMirrorShift;\n";
+    if(fsh.find("uMirrorShift") == string::npos)
+      fsh += "uniform int uMirrorShift;\n";
     }
   }