From c401adfe3e54fd94ac3e50c100947f8854ba6a3c Mon Sep 17 00:00:00 2001
From: Garux <garux@mail.ru>
Date: Thu, 12 Dec 2019 00:20:00 +0300
Subject: [PATCH] * -brightness only affects lightmap brightness, like
 q3map_lightmapBrightness, as there are -vertexscale and -gridscale for the
 rest 		is multipled with q3map_lightmapBrightness

---
 tools/quake3/q3map2/light.c       | 7 +++----
 tools/quake3/q3map2/light_ydnar.c | 2 --
 tools/quake3/q3map2/shaders.c     | 3 ++-
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/tools/quake3/q3map2/light.c b/tools/quake3/q3map2/light.c
index 015305f7..1526774e 100644
--- a/tools/quake3/q3map2/light.c
+++ b/tools/quake3/q3map2/light.c
@@ -2422,11 +2422,10 @@ int LightMain( int argc, char **argv ){
 			i++;
 		}
 
-		/* Lighting brightness */
+		/* Lightmaps brightness */
 		else if( !strcmp( argv[ i ], "-brightness" ) ){
-			f = atof( argv[ i + 1 ] );
-			lightmapBrightness = f;
-			Sys_Printf( "Lighting brightness set to %f\n", lightmapBrightness );
+			lightmapBrightness = atof( argv[ i + 1 ] );
+			Sys_Printf( "Scaling lightmaps brightness by %f\n", lightmapBrightness );
 			i++;
 		}
 
diff --git a/tools/quake3/q3map2/light_ydnar.c b/tools/quake3/q3map2/light_ydnar.c
index 2f351e89..10b190fe 100644
--- a/tools/quake3/q3map2/light_ydnar.c
+++ b/tools/quake3/q3map2/light_ydnar.c
@@ -55,8 +55,6 @@ void ColorToBytes( const float *color, byte *colorBytes, float scale ){
 	if ( scale <= 0.0f ) {
 		scale = 1.0f;
 	}
-	/* globally */
-	scale *= lightmapBrightness;
 
 	/* make a local copy */
 	VectorScale( color, scale, sample );
diff --git a/tools/quake3/q3map2/shaders.c b/tools/quake3/q3map2/shaders.c
index 261f3635..63ba23a9 100644
--- a/tools/quake3/q3map2/shaders.c
+++ b/tools/quake3/q3map2/shaders.c
@@ -660,6 +660,7 @@ static shaderInfo_t *AllocShaderInfo( void ){
 	si->patchShadows = qfalse;
 	si->vertexShadows = qtrue;  /* ydnar: changed default behavior */
 	si->forceSunlight = qfalse;
+	si->lmBrightness = lightmapBrightness;
 	si->vertexScale = vertexglobalscale;
 	si->notjunc = qfalse;
 
@@ -1599,7 +1600,7 @@ static void ParseShaderFile( const char *filename ){
 				/* ydnar: q3map_lightmapBrightness N (for autogenerated shaders + external tga lightmaps) */
 				else if ( !Q_stricmp( token, "q3map_lightmapBrightness" ) || !Q_stricmp( token, "q3map_lightmapGamma" ) ) {
 					GetTokenAppend( shaderText, qfalse );
-					si->lmBrightness = atof( token );
+					si->lmBrightness *= atof( token );
 					if ( si->lmBrightness < 0 ) {
 						si->lmBrightness = 1.0;
 					}