From ccac47c1a71884c04a00d95358770b170f346fbd Mon Sep 17 00:00:00 2001
From: Dave Parks <davep@lindenlab.com>
Date: Mon, 16 Jul 2012 14:31:15 -0500
Subject: MAINT-1223 Fix for alpha updates not triggering LoD updates.

---
 indra/newview/llface.cpp | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'indra/newview/llface.cpp')

diff --git a/indra/newview/llface.cpp b/indra/newview/llface.cpp
index 2d84c5d7de..373b1930f5 100644
--- a/indra/newview/llface.cpp
+++ b/indra/newview/llface.cpp
@@ -326,7 +326,20 @@ void LLFace::setTexture(LLViewerTexture* tex)
 
 void LLFace::dirtyTexture()
 {
-	gPipeline.markTextured(getDrawable());
+	LLDrawable* drawablep = getDrawable();
+
+	if (mVObjp.notNull() && mVObjp->getVolume() && 
+		mTexture.notNull() && mTexture->getComponents() == 4)
+	{ //dirty texture on an alpha object should be treated as an LoD update
+		LLVOVolume* vobj = drawablep->getVOVolume();
+		if (vobj)
+		{
+			vobj->mLODChanged = TRUE;
+		}
+		gPipeline.markRebuild(drawablep, LLDrawable::REBUILD_VOLUME, FALSE);
+	}		
+			
+	gPipeline.markTextured(drawablep);
 }
 
 void LLFace::switchTexture(LLViewerTexture* new_texture)
-- 
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