From 28091e91a5220e688e78b1001eeef81be291e1e7 Mon Sep 17 00:00:00 2001
From: Stuart Buchanan <stuart_d_buchanan@yahoo.co.uk>
Date: Tue, 10 Feb 2015 21:18:17 +0000
Subject: [PATCH] Disable directional lighting as workaround.

Apparent unstable normals in taxiway lights cause
lighting to vary by view direction.  Temporary
fix for V3.4 release.
---
 Effects/surface-lights-directional.eff | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Effects/surface-lights-directional.eff b/Effects/surface-lights-directional.eff
index b9934fcd3..957a46a04 100644
--- a/Effects/surface-lights-directional.eff
+++ b/Effects/surface-lights-directional.eff
@@ -109,7 +109,8 @@
       <uniform>
         <name>is_directional</name>
         <type>bool</type>
-        <value><use>light-directional</use></value>
+	<!-- Short-term fix for unstable normals in taxiway lights -->
+        <value>false</value>
       </uniform>
       <uniform>
         <name>texture</name>