From 281800539e7b6eb9078b85689c357ff3c953e5c9 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Sat, 31 Jan 2009 21:45:47 +0000
Subject: [PATCH] Fixed handling of TransferFunctionProperty.

---
 examples/osgvolume/osgvolume.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/examples/osgvolume/osgvolume.cpp b/examples/osgvolume/osgvolume.cpp
index 85f3554ba..478513a02 100644
--- a/examples/osgvolume/osgvolume.cpp
+++ b/examples/osgvolume/osgvolume.cpp
@@ -1269,7 +1269,7 @@ int main( int argc, char **argv )
         osgVolume::AlphaFuncProperty* ap = new osgVolume::AlphaFuncProperty(alphaFunc);
         osgVolume::SampleDensityProperty* sd = new osgVolume::SampleDensityProperty(0.005);
         osgVolume::TransparencyProperty* tp = new osgVolume::TransparencyProperty(1.0);
-        osgVolume::TransferFunctionProperty* tfp = new osgVolume::TransferFunctionProperty(transferFunction.get());
+        osgVolume::TransferFunctionProperty* tfp = transferFunction.valid() ? new osgVolume::TransferFunctionProperty(transferFunction.get()) : 0;
 
         {
             // Standard