From 314f8fee49df3b4c11f7fa9a2cdc89b135a30c4d Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Thu, 27 Feb 2020 18:10:38 +0100
Subject: [PATCH] - clamp added brightness by brightmaps to a light level of
 1.0.

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

diff --git a/wadsrc/static/engine/shaders/glsl/polymost.fp b/wadsrc/static/engine/shaders/glsl/polymost.fp
index eacde0db7..562ffc80c 100644
--- a/wadsrc/static/engine/shaders/glsl/polymost.fp
+++ b/wadsrc/static/engine/shaders/glsl/polymost.fp
@@ -214,7 +214,7 @@ void main()
 
 				if ((u_flags & RF_Brightmapping) != 0)
 				{
-					lightcolor += texture(s_brightmap, v_texCoord.xy).rgb;
+					lightcolor = clamp(lightcolor + texture(s_brightmap, v_texCoord.xy).rgb, 0.0, 1.0);
 				}
 				color.rgb *= lightcolor;
 				color.rgb += u_fogColor.rgb * shade;