From 20bd0737a22eb9825fb790c9a2ac7bc2eb6ba9ae Mon Sep 17 00:00:00 2001
From: Stuart Buchanan <stuart_d_buchanan@yahoo.co.uk>
Date: Thu, 15 Sep 2011 21:11:00 +0100
Subject: [PATCH] Make tree textures consistent across runs by replacing rand()
 call with something deterministic.

---
 simgear/scene/tgdb/TreeBin.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/simgear/scene/tgdb/TreeBin.cxx b/simgear/scene/tgdb/TreeBin.cxx
index 56c5d415..17da8374 100644
--- a/simgear/scene/tgdb/TreeBin.cxx
+++ b/simgear/scene/tgdb/TreeBin.cxx
@@ -253,7 +253,7 @@ struct AddTreesLeafObject
 {
     void operator() (LOD* lod, const TreeBin::Tree& tree) const
     {
-        Geode* geode = static_cast<Geode*>(lod->getChild(rand() % SG_TREE_FADE_OUT_LEVELS));
+        Geode* geode = static_cast<Geode*>(lod->getChild(int(tree.position.x() * 10.0f) % lod->getNumChildren()));
         addTreeToLeafGeode(geode, tree.position);
     }
 };