From b2a7fff26eb9e253bbdec3e407c91bd976e1e86f Mon Sep 17 00:00:00 2001
From: curt <curt>
Date: Thu, 14 Feb 2002 14:21:48 +0000
Subject: [PATCH] Explicitely reset the glBlendFunc() after drawing the moon
 for the Voodoo2 linux driver since it seems to have a bug in glPopAttrib().

---
 simgear/sky/moon.cxx | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/simgear/sky/moon.cxx b/simgear/sky/moon.cxx
index 00ce42a4..f5c81b3b 100644
--- a/simgear/sky/moon.cxx
+++ b/simgear/sky/moon.cxx
@@ -57,12 +57,16 @@ static int sgMoonOrbPreDraw( ssgEntity *e ) {
     return true;
 }
 
+
 static int sgMoonOrbPostDraw( ssgEntity *e ) {
     /* cout << endl << "Moon orb post draw" << endl << "----------------" 
 	 << endl << endl; */
     // glEnable( GL_DEPTH_TEST );
     // glEnable( GL_FOG );
-    // glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
+
+    // Some drivers don't properly reset glBendFunc with a
+    // glPopAttrib() so we reset it to the 'default' here.
+    glBlendFunc ( GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA ) ;
 
     glPopAttrib();
     // cout << "pop error = " << glGetError() << endl;
@@ -78,6 +82,8 @@ static int sgMoonOrbPostDraw( ssgEntity *e ) {
     return true;
 }
 
+
+#if 0
 static int sgMoonHaloPreDraw( ssgEntity *e ) {
     /* cout << endl << "Moon halo pre draw" << endl << "----------------" 
 	 << endl << endl; */
@@ -107,6 +113,7 @@ static int sgMoonHaloPostDraw( ssgEntity *e ) {
 
     return true;
 }
+#endif
 
 
 // Constructor
-- 
2.39.5