From 07ac33ec99bfdb89ad5d45208c12bd2258118515 Mon Sep 17 00:00:00 2001
From: Mark Vejvoda <mark_vejvoda@hotmail.com>
Date: Mon, 11 Nov 2013 18:34:51 +0000
Subject: [PATCH] bugfix for performance enhancement

---
 source/glest_game/world/world.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/glest_game/world/world.cpp b/source/glest_game/world/world.cpp
index 919fe462..3b9a2adc 100644
--- a/source/glest_game/world/world.cpp
+++ b/source/glest_game/world/world.cpp
@@ -2520,7 +2520,7 @@ void World::computeFow() {
 
 	// Once we have calculated fog of war texture alpha, will we cache it so that we
 	// can restore it later
-	if(cacheFowAlphaTexture == false) {
+	if(cacheFowAlphaTexture == false && resetFowAlphaFactionCount > 0) {
 		cacheFowAlphaTexture = true;
 		cacheFowAlphaTextureFogOfWarValue = fogOfWar;
 		minimap.copyFowTexAlphaSurface();