Changeset 10135

Timestamp:

05/05/09 13:05:17 (9 months ago)

Author:

robert

Message:

Added checks to prevent crash when no imagery is applied

Files:

• OpenSceneGraph/trunk/src/osgVolume/FixedFunctionTechnique.cpp (modified) (1 diff)

OpenSceneGraph/trunk/src/osgVolume/FixedFunctionTechnique.cpp

@@ -99 +99 @@
 void FixedFunctionTechnique::init()
 {
-    osg::notify(osg::NOTICE)<<"FixedFunctionTechnique::init()"<<std::endl;
-
-    if (!_volumeTile) return;
+    osg::notify(osg::INFO)<<"FixedFunctionTechnique::init()"<<std::endl;
+
+    if (!_volumeTile)
+    {
+        osg::notify(osg::NOTICE)<<"FixedFunctionTechnique::init(), error no volume tile assigned."<<std::endl;
+        return;
+    }
+
+    if (_volumeTile->getLayer()==0)
+    {
+        osg::notify(osg::NOTICE)<<"FixedFunctionTechnique::init(), error no layer assigend to volume tile."<<std::endl;
+        return;
+    }
+
+    if (_volumeTile->getLayer()->getImage()==0)
+    {
+        osg::notify(osg::NOTICE)<<"FixedFunctionTechnique::init(), error no image assigned to layer."<<std::endl;
+        return;
+    }
 
     float alphaFuncValue = 0.1;