From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Thu, 16 Dec 2010 06:46:40 +0000 (+0000)
Subject: if a skyboxskinframe is missing, don't draw that sky surface (fixes crash if some... 
X-Git-Tag: xonotic-v0.1.0preview~9
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=d386ec55b42731f8ac9823599b888c6827423792;p=xonotic%2Fdarkplaces.git

if a skyboxskinframe is missing, don't draw that sky surface (fixes crash if some but not all skybox files exist; also allows a quicker "partial skybox" where e.g. the bottom side isn't even drawn at all)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@10665 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=3dd1e6fd20b37f7f88418ef0593114a73312b0d3
---

diff --git a/r_sky.c b/r_sky.c
index 388316ac..4aa4d7fb 100644
--- a/r_sky.c
+++ b/r_sky.c
@@ -302,7 +302,8 @@ static void R_SkyBox(void)
 	int i;
 	RSurf_ActiveCustomEntity(&skymatrix, &skyinversematrix, 0, 0, 1, 1, 1, 1, 6*4, skyboxvertex3f, skyboxtexcoord2f, NULL, NULL, NULL, NULL, 6*2, skyboxelement3i, skyboxelement3s, false, false);
 	for (i = 0;i < 6;i++)
-		R_DrawCustomSurface(skyboxskinframe[i], &identitymatrix, MATERIALFLAG_SKY | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOCULLFACE | MATERIALFLAG_NODEPTHTEST, i*4, 4, i*2, 2, false, false);
+		if(skyboxskinframe[i])
+			R_DrawCustomSurface(skyboxskinframe[i], &identitymatrix, MATERIALFLAG_SKY | MATERIALFLAG_FULLBRIGHT | MATERIALFLAG_NOCULLFACE | MATERIALFLAG_NODEPTHTEST, i*4, 4, i*2, 2, false, false);
 }
 
 #define skygridx 32