From f2f36df58fa55c9ea8096c0aaed41d8b5e4729f5 Mon Sep 17 00:00:00 2001
From: Garux <garux@mail.ru>
Date: Thu, 25 Jul 2019 19:55:16 +0300
Subject: [PATCH] q3map2	* _maxlight worldspawn key (works unless exposure is
 used) (for those, who know, what they do)

---
 tools/quake3/q3map2/light.c       | 7 +++++++
 tools/quake3/q3map2/light_ydnar.c | 4 ++--
 tools/quake3/q3map2/q3map2.h      | 1 +
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/quake3/q3map2/light.c b/tools/quake3/q3map2/light.c
index e50d609a..02bae21c 100644
--- a/tools/quake3/q3map2/light.c
+++ b/tools/quake3/q3map2/light.c
@@ -1957,6 +1957,13 @@ void LightWorld( qboolean fastAllocate ){
 		}
 	}
 
+	/* maxlight */
+	value = ValueForKey( &entities[ 0 ], "_maxlight" );
+	if ( value[ 0 ] != '\0' ) {
+		f = atof( value );
+		maxLight = f > 255? 255 : f < 0? 0 : f;
+	}
+
 	/* create world lights */
 	Sys_FPrintf( SYS_VRB, "--- CreateLights ---\n" );
 	CreateEntityLights();
diff --git a/tools/quake3/q3map2/light_ydnar.c b/tools/quake3/q3map2/light_ydnar.c
index a053368a..3234d14c 100644
--- a/tools/quake3/q3map2/light_ydnar.c
+++ b/tools/quake3/q3map2/light_ydnar.c
@@ -78,8 +78,8 @@ void ColorToBytes( const float *color, byte *colorBytes, float scale ){
 	if ( lightmapExposure == 0 ) {
 		/* clamp with color normalization */
 		max = VectorMax( sample );
-		if ( max > 255.0f ) {
-			VectorScale( sample, ( 255.0f / max ), sample );
+		if ( max > maxLight ) {
+			VectorScale( sample, ( maxLight / max ), sample );
 		}
 	}
 	else
diff --git a/tools/quake3/q3map2/q3map2.h b/tools/quake3/q3map2/q3map2.h
index ad6985f8..e18f86df 100644
--- a/tools/quake3/q3map2/q3map2.h
+++ b/tools/quake3/q3map2/q3map2.h
@@ -2393,6 +2393,7 @@ Q_EXTERN int defaultLightSubdivide Q_ASSIGN( 999 );
 
 Q_EXTERN vec3_t ambientColor;
 Q_EXTERN vec3_t minLight, minVertexLight, minGridLight;
+Q_EXTERN float maxLight Q_ASSIGN( 255.f );
 
 Q_EXTERN int                *entitySurface;
 Q_EXTERN vec3_t             *surfaceOrigin;