From Ruben Lopez, updates to VRML/IV loader.

From Ben Discoe, corrections to comments in osg::Transform

From Alberto Barbati, Lazy evaluation of inverse matrix in osg::MatrixTransfrom

src/osgGLUT/Viewer.cpp

@@ -672,9 +672,12 @@ void Viewer::display()
         // application traverasal.
         times[2].timeApp+=app(i);
 
+
         // cull traverasal.
         times[2].timeCull+=cull(i);
 
+        if (_printStats>=1) glFinish();
+
         // draw traverasal.
         times[2].timeDraw+=draw(i);
         if (_printStats==Statistics::STAT_PRIMSPERVIEW)

src/osgPlugins/iv/main.cpp

@@ -33,14 +33,17 @@ extern int yyparse();
 extern int yydebug;
 extern MyNode *getRoot();
 extern FILE *yyin;
-
 int isatty(int) { return 0; }
+extern void flush_scanner();
 
 osg::Node *readVRMLNode(const char *file) {
     yydebug=0;
     yyin=fopen(file,"r");
     std::cout << "Parsing..." << std::endl;
-    if (yyparse()!=0) return 0;
+    if (yyparse()!=0) {
+        flush_scanner();
+	return 0;
+    }
     osg::ref_ptr<MyNode> n=getRoot();
     try {
 	std::cout << "Generating OSG tree..." << std::endl;

src/osgPlugins/iv/osgvisitor.cpp

@@ -225,10 +225,10 @@ void OSGVisitor::makeGeode(osg::Geode *geode, osg::Geometry *geometry, bool twoS
     state->setAttributeAndModes(frontface,osg::StateAttribute::ON);
     osg::CullFace *cull=new osg::CullFace();
     cull->setMode(osg::CullFace::BACK);
-    if (twoSided) {
+    if (!twoSided) {
 	state->setAttributeAndModes(cull,osg::StateAttribute::ON);
     } else {
-	std::cout <<  "Deactivating culling for this object" << std::endl;
+	//std::cout <<  "Deactivating culling for this object" << std::endl;
 	state->setAttributeAndModes(cull,osg::StateAttribute::OFF);
 	osg::Transparency    *transp=new osg::Transparency();
 	transp->setFunction(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);

src/osgPlugins/iv/scanner.cpp

@@ -2116,3 +2116,8 @@ int yywrap(void)
 {
 return (1);
 }
+
+void flush_scanner(void) {
+    yy_flush_buffer(YY_CURRENT_BUFFER);
+
+}

src/osgPlugins/iv/scanner.l

@@ -84,3 +84,8 @@ int yywrap(void)
 {
 return (1);
 }
+
+void flush_scanner(void) {
+    yy_flush_buffer(YY_CURRENT_BUFFER);
+
+}