From 4db74f544d2d59beefbec4bd3c6a587c7662b9fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20L=C3=BCbking?= <thomas.luebking@gmail.com>
Date: Wed, 10 Nov 2010 18:08:46 +0000
Subject: [PATCH] workaround nvidia issues with the texture cache and
 translucent windows

svn path=/trunk/KDE/kdebase/workspace/; revision=1195268
---
 lanczosfilter.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lanczosfilter.cpp b/lanczosfilter.cpp
index 02e2bb2753..24b083d8f9 100644
--- a/lanczosfilter.cpp
+++ b/lanczosfilter.cpp
@@ -370,7 +370,7 @@ void LanczosFilter::timerEvent( QTimerEvent *event )
 void LanczosFilter::prepareRenderStates( GLTexture* tex, double opacity, double brightness, double saturation )
     {
 #ifdef KWIN_HAVE_OPENGL_COMPOSITING
-    const bool alpha = true;
+    const bool alpha = false; // true; WORKAROUND - "true" causes issues with at least nvidia chips and translucent windows "overbrightning"
     // setup blending of transparent windows
     glPushAttrib( GL_ENABLE_BIT );
     glEnable( GL_BLEND );