Hi guys,
I'm trying to use a keyboard handler class to toggle wireframe , texture ,
lighting etc. I followed the online tutorials and this is what i did - i
created a new class derived from GUIEventHandler. and overid the "handle"
function.
osg::StateSet* TerrainState =
pTerrainNode->getOrCreateStateSet() ;
TerrainState->clear() ;
osg::PolygonMode* pTerrainPolygonMode = NULL ;
pTerrainPolygonMode = dynamic_cast<osg::PolygonMode*>
(TerrainState->getAttribute(osg::StateAttribute::POLYGONMODE)) ;
if(pTerrainPolygonMode == NULL)
{
pTerrainPolygonMode = new osg::PolygonMode() ;
}
pTerrainPolygonMode->setMode(osg::PolygonMode::FRONT_AND_BACK ,
osg::PolygonMode::FILL) ;
TerrainState->setAttribute(pTerrainPolygonMode ,
osg::StateAttribute::ON) ;
The inherited keyboard handler class has pTerrainNode which gets the address of
the geometry node in its constructor..
I had already set the attributes prior to rendering as lines. Now i want to
render it as filled polygons or points...when invoking the keyboard handler ,
this is what i did..(in the main function)
TerrainKeyboardEventHandler *keh = new
TerrainKeyboardEventHandler(root.get()) ;
osgViewer::Viewer viewer ;
viewer.setSceneData( root.get() ) ;
viewer.addEventHandler(keh) ;
keh->AddFunction('w' , RenderWireframe) ;
keh->AddFunction('v' , RenderPoints) ;
.
.
.
I dont understand what is wrong..I am using Visual Studio 2005 , osg 1.9.7 on
xp.
Any hints , tips or suggestions would greatly help me. Thanks.
Siddharth
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