From b2772edbce2b9f420fbd4c9a57e3a9f3af978a97 Mon Sep 17 00:00:00 2001
From: Erik Hofman <erik@ehofman.com>
Date: Wed, 25 May 2016 10:30:34 +0200
Subject: [PATCH] Prevent rf2 from becoming inf

---
 src/Time/light.cxx | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Time/light.cxx b/src/Time/light.cxx
index 8600372ce..e31e4ad1d 100644
--- a/src/Time/light.cxx
+++ b/src/Time/light.cxx
@@ -358,8 +358,8 @@ void FGLight::update_adj_fog_color () {
     float avf = 0.87 - (45000 - av) / 83333.33;
     float sif = 0.5 - cos(_sun_angle*2)/2;
 
-    if (sif < 1e-4)
-       sif = 1e-4;
+    if (sif < 1e-3)
+       sif = 1e-3;
 
     // determine horizontal angle between current view direction and sun
     // since _sun_rotation is relative to South, and heading is in the local frame
-- 
2.39.5