From: divverent <divverent@d7cf8633-e32d-0410-b094-e92efae38249>
Date: Mon, 29 Aug 2011 20:20:38 +0000 (+0000)
Subject: set TEXF_ALPHA on shader stages only if necessary
X-Git-Tag: xonotic-v0.5.0~5
X-Git-Url: https://git.rm.cloudns.org/?a=commitdiff_plain;h=9796b95857824c822fcd0a903a9716a76f1b0b7d;p=xonotic%2Fdarkplaces.git

set TEXF_ALPHA on shader stages only if necessary

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@11310 d7cf8633-e32d-0410-b094-e92efae38249
::stable-branch::merge=d31a3f45714a81df5699a57c5b6099e5cd3b2231
---

diff --git a/model_shared.c b/model_shared.c
index c10341dc..40e7b278 100644
--- a/model_shared.c
+++ b/model_shared.c
@@ -1970,7 +1970,23 @@ void Mod_LoadQ3Shaders(void)
 							shader.textureblendalpha = true;
 						}
 					}
-					layer->texflags = TEXF_ALPHA;
+					layer->texflags = 0;
+					if (layer->alphatest)
+						layer->texflags |= TEXF_ALPHA;
+					switch(layer->blendfunc[0])
+					{
+						case GL_SRC_ALPHA:
+						case GL_ONE_MINUS_SRC_ALPHA:
+							layer->texflags |= TEXF_ALPHA;
+							break;
+					}
+					switch(layer->blendfunc[1])
+					{
+						case GL_SRC_ALPHA:
+						case GL_ONE_MINUS_SRC_ALPHA:
+							layer->texflags |= TEXF_ALPHA;
+							break;
+					}
 					if (!(shader.surfaceparms & Q3SURFACEPARM_NOMIPMAPS))
 						layer->texflags |= TEXF_MIPMAP;
 					if (!(shader.textureflags & Q3TEXTUREFLAG_NOPICMIP))