From: Stuart Buchanan <stuart_d_buchanan@yahoo.co.uk>
Date: Thu, 15 Jan 2015 21:47:22 +0000 (+0000)
Subject: Protect against divide-by-zero error.
X-Git-Url: https://git.mxchange.org/?a=commitdiff_plain;h=4647ce2da5d894aec0fcc5f270dbc1c41b0e2c46;p=simgear.git

Protect against divide-by-zero error.

Patch from Emilian Huminiuc.
---

diff --git a/simgear/scene/sky/newcloud.cxx b/simgear/scene/sky/newcloud.cxx
index e18f6f6e..6e7b91af 100644
--- a/simgear/scene/sky/newcloud.cxx
+++ b/simgear/scene/sky/newcloud.cxx
@@ -151,8 +151,10 @@ osg::ref_ptr<EffectGeode> SGNewCloud::genCloud() {
     float height = min_height + mt_rand(seed) * (max_height - min_height) - min_sprite_height;
     
     if (width  < 0.0) { width  = 0.0; }
-    if (height < 0.0) { height = 0.0; }
     
+    // Protect against divide by 0 issues later when assigning index_y
+    if (height <= 0.0) { height = 0.01; }
+
     // Determine appropriate shading factors
     float top_factor = min_top_lighting_factor + mt_rand(seed) * (max_top_lighting_factor - min_top_lighting_factor);
     float middle_factor = min_middle_lighting_factor + mt_rand(seed) * (max_middle_lighting_factor - min_middle_lighting_factor);