From 491e7c6feaa0ab12945c52b0f1818f4e26db9247 Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Thu, 15 Jan 2004 18:10:00 +0000
Subject: [PATCH] Fix a posible devide by zero situation

---
 src/Time/light.cxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Time/light.cxx b/src/Time/light.cxx
index e4f67467c..72cc06fdd 100644
--- a/src/Time/light.cxx
+++ b/src/Time/light.cxx
@@ -297,6 +297,9 @@ 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;
+
     float rf1 = fabs((rotation - SGD_PI) / SGD_PI);             // 0.0 .. 1.0
     float rf2 = avf * pow(rf1 * rf1, 1/sif);
     float rf3 = 0.94 - rf2;