Hi All,
In my MFC application I create an osgUtilSceneView (shown below) and
attach a simple scene graph with a Switch node as the root. Initially
all the children of the Switch node are set off. When I execute the
program, I get the following message displayed every frame until I
enable the Switch. The scene displays correctly.
_clampProjectionMatrix not applied, invalid depth range, znear =
3.40282e+038 zfar = -3.40282e+038
If I add the line 'm_SceneView -> setComputeNearFarMode(
osgUtil::CullVisitor::DO_NOT_COMPUTE_NEAR_FAR ) ;' the error message
dissappears but some parts of the scene are missing (e.g. Those bits of
the scene that lie outside the clip range 0.0 to -1.0).
Can anyone explain this behaviour?
How so I set the osgUtil::SceneView's near and far clip plane values and
prevent them from being auto-calculated for me?
Regards,
Andy.
----- Code section ----
osg::Matrix projection ;
projection.makeOrtho( -0.5, 0.5, -0.5, 0.5, -1.0, 1.0 ) ;
// create the view of the scene.
m_SceneView = new osgUtil::SceneView;
m_SceneView -> setDefaults();
m_SceneView -> setClearColor( clearColor ) ;
m_SceneView -> setProjectionMatrix( projection ) ;
m_SceneView -> setViewport( 0, 0, m_RenderSurface -> getWindowWidth(),
m_RenderSurface -> getWindowHeight() );
// All switches set off initially
// All geometry is simple textured Quads that cover the entire screen.
root -> addChild( noiseSwitch ) ;
root -> addChild( gridSwitch ) ;
root -> addChild( wedgeSwitch ) ;
root -> addChild( imageSwitch ) ;
root -> addChild( barSwitch ) ;
root -> addChild( colBarSwitch ) ;
////////////////////////////////////////////////////////////////////////
////
// Root switch to allow a switch between tracking and non tracking
rendering.
captureSwitch = new osg::Switch ;
captureSwitch -> addChild( root ) ;
m_SceneView -> setSceneData( captureSwitch );
captureSwitch -> setValue( 0, false ) ;
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