From 8d3d271484b42d40a9116993ac88d9ce84e130f6 Mon Sep 17 00:00:00 2001
From: Rachael Alexanderson <eruanna@drdteam.org>
Date: Fri, 21 Jul 2017 18:45:08 -0400
Subject: [PATCH] - tweaked the banded software lightmode shader a bit more,
 looks a little closer (but still not quite...) to real ZDoom in paletted mode

---
 wadsrc/static/shaders/glsl/main.fp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wadsrc/static/shaders/glsl/main.fp b/wadsrc/static/shaders/glsl/main.fp
index d3fd31882..2fb762bad 100644
--- a/wadsrc/static/shaders/glsl/main.fp
+++ b/wadsrc/static/shaders/glsl/main.fp
@@ -122,7 +122,7 @@ float R_DoomLightingEquation(float light)
 	float shade = 2.0 - (L + 12.0) / 128.0;
 	float lightscale;
 	if ((uPalLightLevels & 0xff) != 0)
-		lightscale = float(-int(-(shade - vis) * 32.0)) / 32.0;
+		lightscale = float(-floor(-(shade - vis) * 31.0) - 0.5) / 31.0;
 	else
 		lightscale = shade - vis;