From 6d1ba5b06d3c11cb14a0c62e50f88f34ca893a5d Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 13 Sep 2011 09:21:07 +0000
Subject: [PATCH] From Farshild Lashkari, "Attached is a simple patch that
 avoids the depth write pass in Text::renderWithDelayedDepthWrites if the
 current osg::State object has GL_DEPTH_TEST disabled."

---
 src/osgText/Text.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/osgText/Text.cpp b/src/osgText/Text.cpp
index fdd31f8ab..514cb271e 100644
--- a/src/osgText/Text.cpp
+++ b/src/osgText/Text.cpp
@@ -1601,6 +1601,12 @@ void Text::renderOnlyForegroundText(osg::State& state, const osg::Vec4& colorMul
 
 void Text::renderWithDelayedDepthWrites(osg::State& state, const osg::Vec4& colorMultiplier) const
 {
+    // If depth testing is disabled, then just render text as normal
+    if( !state.getLastAppliedMode(GL_DEPTH_TEST) ) {
+        drawTextWithBackdrop(state,colorMultiplier);
+        return;
+    }
+
     //glPushAttrib( _enableDepthWrites ? (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) : GL_DEPTH_BUFFER_BIT);
     // Render to color buffer without writing to depth buffer.
     glDepthMask(GL_FALSE);