From: Rudolf Polzer <rpolzer@grawp.div0.qc.to>
Date: Sun, 14 Feb 2010 19:09:15 +0000 (+0100)
Subject: small fix by jal regarding normal vectors from lighting
X-Git-Tag: xonotic-v0.5.0~286
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=b8839b8771f2cb180b3ffc81661cb4ee419036d2;p=xonotic%2Fnetradiant.git

small fix by jal regarding normal vectors from lighting
---

diff --git a/tools/quake3/q3map2/light_ydnar.c b/tools/quake3/q3map2/light_ydnar.c
index 4b028059..3207928b 100644
--- a/tools/quake3/q3map2/light_ydnar.c
+++ b/tools/quake3/q3map2/light_ydnar.c
@@ -1425,7 +1425,7 @@ float DirtForSample( trace_t *trace )
 	VectorCopy( trace->normal, normal );
 	
 	/* check if the normal is aligned to the world-up */
-	if( normal[ 0 ] == 0.0f && normal[ 1 ] == 0.0f )
+	if( normal[ 0 ] == 0.0f && normal[ 1 ] == 0.0f && ( normal[ 2 ] == 1.0f || normal[ 2 ] == -1.0f ) )
 	{
 		if( normal[ 2 ] == 1.0f )		
 		{