From 28c5c72605711280a64fac387fa41e0f41b59f00 Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Tue, 22 Sep 2020 22:15:27 +0200
Subject: [PATCH] - fixed: black fog does not mean FogColor == 0 because its
 alpha component is non-0

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

diff --git a/source/glbackend/glbackend.cpp b/source/glbackend/glbackend.cpp
index 57c2ff7e6..6a84e5b7e 100644
--- a/source/glbackend/glbackend.cpp
+++ b/source/glbackend/glbackend.cpp
@@ -234,7 +234,7 @@ void PolymostRenderState::Apply(FRenderState& state, GLState& oldState)
 		state.SetDepthFunc(DepthFunc);
 		oldState.DepthFunc = DepthFunc;
 	}
-	bool foggy = (GLInterface.useMapFog || FogColor);
+	bool foggy = (GLInterface.useMapFog || (FogColor & 0xffffff));
 	// Disable brightmaps if non-black fog is used.
 	if (!(Flags & RF_FogDisabled) && ShadeDiv >= 1 / 1000.f && foggy)
 	{